Method to control hydraulic accumulating station and device for its realisation
FIELD: power engineering.
SUBSTANCE: method to control a hydraulic accumulating station (HAS), comprising at least two energy systems, one of which is energy excessive, the other one - energy deficit, and at least two units, on the shaft of each one there is a reversible electric machine and a reversible hydraulic machine, consists in the fact that stator windings of the electric machine of the first unit are connected to the first energy system in the motor mode with the hydraulic machine in the pump mode. Stator windings of the electric machine of the first unit are connected to the energy excessive system. Simultaneously stator windings of the electric machine of the second unit are connected to the energy deficit system in the generator mode with the hydraulic machine in the turbine mode.
EFFECT: higher usage of installed HAS equipment and reduced HAS payback period.
2 cl, 2 dwg
The proposed method can be used in the field of managed communications power systems on the basis of frequency converters, specifically in the management of pumped storage stations.
Currently integrate separate power systems into a single system. However, in many cases, interconnection are so low that a single system may not have a significant impact on the mode of another system, so mutual synchronous operation is often impossible. However, unwanted and separate work, as in some systems, an additional deficit. In addition, there are electrical systems, in which the frequency changes due to fluctuations powerful loads. When combining these systems with a system with high requirements for power quality difficulties of their mutual synchronous operation.
Known similar way [Vedalken A.S. pumped storage power plant. RF patent №2301298, IPC EV 9/00, priority 27.12.2007] management of pumped storage power station (HPS)containing two or more units, on the shaft of each of which is reversible electric and reversible hydraulic machines, namely, that the stator windings of electrical machines of all units connected to the grid in the engine is egime with hydraulic machines in the pumping mode or stator windings of electrical machines of all units connected to the grid in the generator mode, with hydraulic machines in the turbine mode. This method has the following disadvantage. In this method of control and pump station can be used only with a certain periodicity, resulting in underutilization of the installed equipment PSPP.
Also known prototype-the way [Gotovtsev A.L. pumped storage plant. ELECTRO, 2007. No. 1, p.43-48.] management of pumped storage power station (HPS), containing at least two units, on the shaft of each of which is reversible electric and reversible hydraulic machines, based on the fact that in the mode of accumulation of energy all electric machines include engine, and all reversible hydraulic machine includes a pump, in the processing mode stored energy all electric machines include a generator, and all the reversible hydraulic machine include turbine.
The disadvantage of the prototype method, as the method-analogue, is that in this way of pumped storage management station can be used only with a certain periodicity, resulting in underutilization of the installed equipment PSPP.
It is known device [Eroshevich CENTURIES, Kiryanov N. Large electroaccumulators installation. - Izv. THE USSR ACADEMY OF SCIENCES. Energy and transport, 1985, No. 1.] to implement the method, consisting of a pumped storage station (HA IS FROM). Hydraulic structure PSPP consists of two basins - upper (accumulating) and lower (feed), located at different levels and connected by a system of large inclined pipes (conduits). The upper pool can be natural (e.g., lake) or artificial (concrete pits), and the lower pool is often used as a reservoir formed by the damming of the river by a small dam. Building PSPP with units located at the downstream of, and each unit is at the lower end of the corresponding conduit. A hydroelectric pumped-storage power plants with generating units is located at the downstream of, and each unit is at the lower end of the corresponding conduit. Units currently mostly can be machine - from a reversible electric machines (motor - generator) and reversible (or reverse) hydraulic machines, workers, depending on the direction of flow and the corresponding direction of rotation either as a pump or as a turbine, i.e. in the turbine or pump modes.
The cycle of the PSP is that at night, when the load of the power system is severely reduced, all electric machine units include power system in motor mode, and all hydraulic machine units in pumping mode, the water is pumped through the conduits from the bottom of the pool at the top. In lane the odes peak load power system stored in the upper pool water conduits pass through all hydraulic machines pumped from the bottom of the pool in the turbine mode, and being with them on the same shaft all electric machines include a power system in the generator mode, generating electricity. Due to the difference between the costs of "night" energy and "peak" (usually 3-5 times) PSPP pays off for 7-8 years.
The known device has the following disadvantage. The water pumped is usually a length of the order of hundreds of meters, so the loss of them can be up to 3-5% (for example, on the first stage of Zagorskaya PSPP has 6 units; estimated head is 95-113 m of the water column (height difference between the upper and lower pools 100 m); the pipe diameter d=7.5 m; the length of the pipeline l=700 m; hydro generators with a capacity of 200 MW).
The technical problem solved by the invention is to improve, compared with the traditional use of the installed equipment PSPP, and, as a consequence reducing the payback period PSPP.
The technical result of the unification of grids with different frequencies to ensure the normal modes of the power system, one of which is power excessive, the other energodefitsita, and at least two units, on the shaft of each of which is reversible electric and reversible hydraulic machines, namely, that the stator winding of an electric machine of the first unit is connected to the first power supply system in a motor the positive mode with a hydraulic machines in pumping mode, according to the invention, the stator winding of an electric machine of the first unit is connected to abundant in the system, while the stator winding of an electric machine of the second unit is connected to the power-hungry system in generator mode with hydraulic machines in the turbine mode.
In addition, the technical problem is solved also by the fact that known and pump station containing at least two grids, one of which is power excessive, the other energodefitsita, and at least two units, on the shaft of each of which is reversible electric and reversible hydraulic machine with its conduit connecting the upper and lower basins of the pumped storage station, while the stator winding of an electric machine of the first unit is connected through its transformer and switches to abundant in the grid, stator winding of an electric machine of the second unit is connected through its transformer and switches to the power-hungry power system according to the invention, equipped with additional conduit made in the form of jumpers with gates connecting pairs of inputs of the hydraulic machines.
The proposed device is schematically represented in the drawings. Figure 1 presents a simplified diagram of two hydraulic machines PSP is more water jumper by gates.
Figure 2 presents a fragment of the wiring diagram PSPP.
According to Figure 1, PSPP two reversible units contains two reversible hydraulic machines 1 and 2 respectively with the impellers 3 and 4, the spiral chambers 5 and 6 and the conduits 7 and 8, as well as additional cross-conduit - jumper 9 gates 10 and 11, and gates 12 and 13. The conduits 7 and 8 of the spiral chambers 5 and 6 hydraulic machines 1 and 2 is connected to the upper pool PSPP (figure 1 upper and lower pools not shown)
Figure 2 presents a fragment of the electric circuit diagrams of two reversible electric machines Zagorsk PSP. Zagorskaya PSPP contains six reversible units of 200 MW and a complete electrical circuit is given in reference [Electrical engineering Handbook: 3 t / h V.3. 2 kN. KN. 1. Production and distribution of electric energy (Under the General editorship of professors MEI: I.N. Eagles (editor-in-chief), etc) 7th ed., Corr. and extra - M.: Energoatomizdat, 1988. Page 124.].
Tires combine the grids 14 and 15 is connected to the tire 500 kV 16 and 17 respectively through the switches 18, 19 and 20, 21. Bus 16 and 17, respectively, through the transformers 22 and 23 are connected with the tire 24 and 25 of the generator voltage. Bus 24 via the switches 26, 27 are connected with the stator windings of the reversible electric machine 30. Bus 25 via the switches 28, 29 with dynany with the stator windings of the reversible electric machine 31.
The device operates as follows. To join the two grids with different frequencies f1≠f2the stator winding of the electric machine 30 of the first unit is connected to the tires abundant power system 14 in motor mode with the hydraulic machine 1 (see Figure 1) in the pump mode through the switch 18 and the switch 19 is off), bus 16, a transformer 22, bus 24 and the switch 26 with direct alternation of phases (e.g., ABC). The switch 27 is turned off (it used to turn on with a reverse phase sequence, such as DIA, reversible machine 30 only when the switch 26). The stator winding of the electric machine 31 of the second unit is connected to the power-hungry system 15 in generator mode with the hydraulic machine 2 in the turbine mode through the switch 21 switch 20 is off), the bus 17, the transformer 23, the bus 25 and the switch 29 with a reverse phase sequence (for example, ASV). The switch 28 with direct phase sequence (for example, ABC) disabled (it used to turn on only when the switch 29). In such a scheme include the listed items PSPP during operation of the electrical machine 30 in the motor mode, water from the lower basin impeller 3 reversible hydraulic machine 1 of the first unit operating in the pumping mode, through the spiral chamber 5 and water is od 7 is pumped into the upper basin of the PSP. Simultaneously with the operation of the electrical machine 31 in the generator mode, water from the upper basin through the conduit 8, the spiral chamber 6 and the impeller 4 reversible hydraulic machine 2 of the second unit working in the turbine mode, enters the lower basin of the PSP.
For large lengths of conduits (e.g., Zagorskaya PSPP length of the conduits 700 m) loss in long conduits can be for the full cycle to 3-5%. When working PSP in the proposed mode of the frequency Converter for connection of energy systems to reduce these losses, according to Figure 1, the valves 12 and 13 are closed, and valves 10 and 12 are opened, thereby significantly shorten the path of water from the pump 1 to the turbine 2 via the auxiliary conduit-jumper 9. Note that in the presence of water jumper with butterfly valve device can be used as a test bench for hydraulic turbines of various types for the removal of real performance. PSPP according to the proposal. Can also be used to combine three or more grids with different frequencies.
Thus, the proposed control method, the pumped storage station allows you to use the PSP as a frequency Converter for interconnection and to transmit power from abundant system power-hungry systems is virtually any difference in their frequencies. To use the PSP as a frequency Converter for interconnection as possible during the main cycles pumped storage plant, and in the periods between the cycles. This expands the use of equipment PSPP and as a consequence reduces the payback period PSPP.
1. Way pumped storage management station containing at least two grids, one of which is power excessive, the other energodefitsita, and at least two units, on the shaft of each of which is reversible electric and reversible hydraulic machines, namely, that the stator winding of an electric machine of the first unit is connected to the first power supply system in a motor mode with the hydraulic machine in the pump mode, characterized in that the stator winding of an electric machine of the first unit is connected to abundant in the system, while the stator winding of an electric machine of the second unit is connected to the power-hungry system in generator mode with hydraulic machine in the turbine mode.
2. Pumped storage station containing at least two grids, one of which is power excessive, the other energodefitsita, and at least two units, on the shaft of each of which are reversible and reversible electric hydraulic the Kaya machine with its conduit, connecting the upper and lower basins of the pumped storage station, while the stator winding of an electric machine of the first unit is connected through the transformer and switches to abundant in the grid, stator winding of an electric machine of the second unit is connected through the transformer and switches to the power-hungry power system, characterized in that it is provided with an additional conduit made in the form of jumpers with gates connecting pairs of inputs of the hydraulic machines.
FIELD: petroleum industry.
SUBSTANCE: invention relates to controlled-angle drilling of oil and gas wells, namely to power supply generators of well instrumentation-components of face telemetric systems. The operation mode regulator for power supply generator of the well telemetric system device contains the generator mounted over the electric baffle inside the protective enclosure with the adapter for fixing to the drilling pipes string mounted on the top side of the envelope. A crosspiece with windows for passing mud fluid is fixed inside the adapter; a rod is secured in the middle of the crosspiece. A guiding device is mounted on the rod so that it can move in axial direction. The rod has stepped internal boring and thread and the guiding device is fixed through longitudinal windows provided in the rod to the spring-loaded bush. The axial position of the bush is adjusted by the screw that passes through the central opening in the bush. The screw is mounted on the thread provided in the internal boring of the rod.
EFFECT: possibility of smooth control of the rotation speed of the generator turbine for obtaining rated voltage at its outputs, increased reliability of the structural components of the drilling pipe strings.
10 cl, 4 dwg
FIELD: mechanical engineering; rotary-vane hydraulic turbines.
SUBSTANCE: according to proposed method, first discrepancy of parameters, obtained by combinatorial dependence, from optimum turbine control parameters is revealed. Then combinatory is switched off, direction of correction is determined and optimum parameters are searched at which increment of consumption of water at change of position of wheel blades should be equal to increment of water flow rate at change of opening of guide vane assembly. For this purpose test pulse actions are formed simultaneously but in opposite directions, are grouped in pairs and are delivered by steps to wheel blade and guide vane assembly control drives measuring increment of electric power of set of successive step and fixing signs of change of electric power of set. Positive increment of electric power is used as index for choosing correcting pair of pulses. Correction is carried out till moment when increment of set power becomes zero. Resulting parameters are stored in memory unit for subsequent use as optimum ones at conditions of set of corresponding head and power.
EFFECT: provision of maximum efficiency of set.
FIELD: power engineering.
SUBSTANCE: device comprises a lower reach 1, an upper reach 2, a water conduit 3, a turbogenerator 4 and surfaces 5. Surfaces 5 are made as capable of receiving atmospheric moisture from the air flow and delivering it to the upper reach. Besides, surfaces 5 are raised to the height above the dew point for these atmospheric conditions. To support the surfaces 5, balloons or airships 6 are used.
EFFECT: expansion of functional capabilities and increased specific capacity of HPP by using maximum possible difference of heights between upper and lower reaches from height of actual condensation of atmospheric moisture in a cloud to ground level.
FIELD: power engineering.
SUBSTANCE: foundation under a common structure is assembled from steel or reinforced concrete blocks having sufficient buoyancy reserve, which are towed to the place of riverbed closure, where concrete stops are previously installed to ensure stop of the foundation at the specified point. One of the stops is connected with a coupling dam, under which sag pipes are laid for their connection with water conduits of float power units. Work is completed on build-up of walls on the foundation, using finished standard reinforced concrete boards, inserting them into reinforced concrete stands, and simultaneously the built-up walls at the side of the air lock outside is strengthened by inwash soil. Then both pairs of two-fold gates are installed, leaving them open before the sag pipes are laid, and a passage is closed, which is arranged between the wall of the lock chamber and the coupling dam of the opposite shore of the river. After float power units have been installed and connected to water conduits and power grid, and the site is closed by gates, the float hydraulic power plant with the matched lock chamber is commissioned.
EFFECT: possibility to simplify construction of a float hydraulic power plant combined with a lock chamber.
2 cl, 2 dwg
SUBSTANCE: estuary is protected against sea waters with a breakwater (dam) and gates that open to empty the estuary in case of ebb. A canal is laid along the river-sea line with installation of water conduits in its boards (walls) in the quantity equal to the design quantity of float power units. Upon completion of laying works at the side of the sea the water area is closed with gates locked at the pressure of the river flow during ebb and opened with another tide overcoming the river flow, which provides for passage of vessels, also tugboats with float power units to the place of their installation.
EFFECT: no-pause operation of float power units installed along both boards of a canal.
SUBSTANCE: hydraulic accumulating power plant comprises a pond located on the earth surface, a water intake facility, a vertical shaft of a discharge water conduit, a communication shaft, aeration shafts, a vertical shaft of power discharge, a turbine room with aggregate blocks, a bottom pond with the main chambers and an inclined transport tunnel. The bottom pond additionally comprises short tunnels, connecting galleries, a switching chamber, discharge connecting water conduits and a distribution chamber. The main chambers of the bottom pond are made in the form of spirally arranged tunnels of round cross section in plan and are connected to each other by means of connecting galleries. Aggregate blocks of the plant unit by means of suction pipes and short tunnels are connected with the distribution chamber, which in its turn is connected with the main chambers of the bottom pond with the help of discharge connecting water conduits. The method for tunnelling of the bottom pond includes tunnelling of the main inclined transport tunnel from the surface to the underground structures with the help of a tunnelling mechanised complex and erection of the main chambers of the bottom pond. When the bottom pond main chambers are tunnelled, the switching chamber is arranged to redistribute rock discharge during tunnelling and to reduce length of rock discharge along a conveyor.
EFFECT: possibility to arrange high-discharge hydraulic accumulating power plants on plane territories, at large depths from 300 m to 2000 m, optimisation of works performance and maximum mechanisation of tunnelling of underground mines, by means of wide usage of efficient tunnelling mechanised complexes.
2 cl, 4 dwg
SUBSTANCE: mobile small hydro-electric station of sleeve type with a transverse jet turbine includes a water-retaining shell fixed in the upper part due to back stays and guy lines of fitting to coastal anchor supports, and in the lower part by means of a unit of fixation to an apron fixed by bed anchors to the bottom of the watercourse. The water-retaining shell has cuts at the side of coastal abutments symmetrically relative to a flexible sleeve for provision of its protection against direct exposure of the flow as it overflows via a crest into a lower reach. A hydraulic unit is installed on a water-filled shell jointly with the flexible sleeve and has a flow rate controller and a servodrive, which provide for its most optimal operation.
EFFECT: invention makes it possible to create a temporary hydroeconomic unit that solves local power supply, irrigation, water supply, fish farming, and also provides for confinement of forest fire spread, provides for the possibility of multiple usage of the proposed structure under emergency situations.
SUBSTANCE: hydraulic accumulating power station comprises a pool located on earth surface, a water intake facility, a vertical discharge water duct, a communication shaft, an aeration shaft, an inclined shaft of power delivery, a station unit with hydraulic units, a lower pool with main chambers and an inclined transport tunnel. The lower pool additionally contains short tunnels, connecting galleries, discharge connecting water ducts and a distributing chamber. Main chambers of the lower pool are made in the form of helically arranged tunnels in plan. The station unit with hydraulic units is placed in the centre of spirals of the lower pool. Hydraulic units of the station unit by means of suction pipes and short tunnels are connected with the distributing chamber, which by means of discharge connecting water ducts arranged radially relative to it, is connected with the main chambers of the lower pool. The lower pool is tunnelled by a combined method consisting in tunnelling of the main inclined transport tunnel from the surface to underground facilities with the help of a tunnelling mechanised complex and arrangement of main chambers of the lower pool. At the same time in parallel to the main inclined tunnel an additional transport tunnel is arranged, and then the lower pool is arranged, which is a continuation of transport tunnels. The lower pool is arranged in two stages: at the first stage a pilot mine is tunnelled with an open tunnelling mechanised complex, and at the second stage, using blast-hole drilling, it is finalised to design contour. Simultaneously with tunnelling of the main chambers of the lower pool they arrange a station unit with hydraulic units, which is located in the centre of spirals of the lower pool.
EFFECT: invention makes it possible to solve a problem of placement of high-discharge hydraulic accumulating power plants in plain territories, by arrangement of a lower pool and a discharge station unit under earth at depths from 300 m to 2000 m, and to optimise works performance and to mechanise tunnelling of underground mines to the maximum, through joint usage of open production tunnelling mechanised complexes and up-to-date equipment complex for performance of blast-hole drilling.
FIELD: power industry.
SUBSTANCE: hydroelectric plant includes a housing made in the form of a vertical cylindrical chamber and a cylinder installed inside it at some distance, which form a composite channel, a compressor station interconnected via an air pipeline to a receiving chamber, a hydrojet turbine with the main generator, which is installed at the outlet of the turbine pipeline located in upper part of the receiving chamber, working fluid storage and level sensors. The plant is equipped with Pelton-type turbines with generators, the first and the second elevated tanks, additional level sensors, one of which is located in the first elevated tank, and the second one is located in the second elevated tank, and an air tank interconnected via an additional air pipeline with a check valve to the first elevated tank. Elevated tanks are installed inside upper part of the cylinder. The first elevated tank has the shape of a funnel, which is connected in the middle to the turbine pipeline. The second elevated tank is put on the first elevated tank and equipped with pressure hoses located in the first tank so that their outlets are located above the funnel opening of the first elevated tank. Pelton-type turbines are installed opposite nozzles of the hydrojet turbine along the perimeter of the receiving chamber. The receiving channel connects the receiving chamber to the second elevated tank. The storage is located in upper part of the housing. On pressure hoses and at the inlet of the turbine pipeline there installed are valves, and on some shafts with turbines there installed are flywheels.
EFFECT: lower consumption of power required for water return to water storage reservoir.
FIELD: power industry.
SUBSTANCE: hydroelectric power plant includes a channel connected to a water reservoir initiating a dynamic flow and orthogonal turbines located inside the channel. The channel represents a pipe consisting of connecting links and provided with the turbines equally spaced throughout the pipe length. Turbines are made in the form of tubular modules with a drive shaft outlet and have the possibility of installing the modules between the connecting links of the pipe. In addition, annular elements of aerodynamic profile are fixed in modules.
EFFECT: higher efficiency of a hydroelectric power plant, lower structural complexity and metal consumption of the device, improved manufacturability, installation and operation and uniform distribution of loads between turbines.
4 cl, 4 dwg
FIELD: power industry.
SUBSTANCE: hydroelectric power plant includes water intake located outside bed of river, main capacity, pressure waterway and waterway of turbines. Along the whole bed of river there arranged is n regulating water reservoirs for water collection, each of which is equipped with a filling channel connected to the river bed and made in upper place as to level and dam with the height of up to upper level, which is made in lower place as to level. Discharge pipeline interconnected with river bed and equipped with a gate valve is installed at lower point of each regulating water reservoir. The main capacity is made in the form of the main water reservoir located below regulating water reservoirs in the section with high level difference and equipped with filling channel connected to the river bed, and dam with height of up to upper level, which are made in upper and lower places respectively as to water level. Pressure waterway is installed downstream as to level of the main water reservoir and made in the form of pressure pipelines with length of not less than 12-15 km depending on river water level difference in order to obtain the required head, which leave the main water reservoir. Pressure pipelines consist of winter pressure pipeline for minimum water flow rate and n summer pressure pipelines for maximum water flow rate. Pressure pipelines are connected to turbine waterway. Hydroelectric power plant also includes compensation water body located at the head level of turbine waterway, which is connected to waterway of turbines and equipped with pump group.
EFFECT: increasing operating efficiency of hydroelectric power plant.
FIELD: machine building.
SUBSTANCE: invention refers to hydroelectric power plants. Hydroelectric power plant includes runner 2 fully submerged into water and installed so that it can be rotated, housing with half-round groove, which encloses runner 2 on one side. The other side of runner 2 is located in water stream. Runner 2 is provided with horizontal rotation axis. Housing is arranged at the river bottom and hinged on the ends of arms the other ends of which are hinged to the piles mounted into the river bottom. External surface of the housing is concentric to the groove, equipped with radially located soil washing-out nozzles, as well as cutters. Hydroelectric power plant is provided with a drive to perform backward swinging movement of the housing relative to the arms.
EFFECT: simplifying the manufacturing technology and reducing the cost of hydroelectric power plant.
3 cl, 2 dwg
FIELD: hydraulic and hydropower engineering, particularly for building water-retaining structures to provide power supply to small settlements and farms.
SUBSTANCE: method involves assembling flexible apron assembly consisted of flexible floor apron and flexible downstream apron in watercourse; securing thereof to watercourse bottom by anchors. Water outlet assembly including hydroelectric generator arranged inside it is secured to floor apron and downstream apron by rigid ties. Connected to water outlet assembly by ties are water retaining shell and rope system secured to anchor poles located on watercourse bank.
EFFECT: reduced time of structure assembling and costs for electric power generation.
FIELD: hydraulic engineering, particularly for passing maximal flood water volumes when it is impossible to transmit thereof through hydroelectric generator.
SUBSTANCE: structure comprises water discharge orifice with gate, hydraulic generator unit with turbine chamber connected with deep -seated water line by suction tube leading to waterway chute located in upper part of hydraulic generator unit and provided with duplicate gate. Opening is formed in deep -seated water line located in area of abutment thereof to turbine chamber. Additional gate is installed in the opening. Water discharge orifice is connected with the opening and waterway chute. Curtain wall forming deep -seated water line is installed in water discharge orifice area. Additional gate is made as a valve with two-sided lining pivotally connected with turbine chamber roof part. Bulwark may be detachably installed in front part of the structure.
EFFECT: increased operational reliability due to prevention of discharged water entrance in waterway part of turbine chamber, possibility of structure connection to surface spillway structure, for instance to concrete dam.
2 cl, 1 dwg
FIELD: hydraulic and hydraulic power building, particularly to erect water-retaining structure, for instance to erect small-scale emergency mobile hydraulic power plants, which use flow kinematic energy.
SUBSTANCE: method involves assembling flexible apron in water stream channel, wherein the flexible apron comprises flexible upstream apron and flexible downstream apron; fastening apron to water stream channel bed by anchors; connecting water-discharge means provided with hydroelectric generating set installed in water-discharge means to flexible downstream apron; securing water-retaining shell along with rope system fastened to anchor supports to water-discharge means, wherein water-retaining shell is attached to anchors by flexible stay system.
EFFECT: increased reliability of protection against emergency situations, reduced costs and labor inputs for structure erection.
FIELD: hydroenergetics, particularly water-power plants, namely pumped-storage plants, which generate power in on-peak period.
SUBSTANCE: pumped-storage station comprises upper and lower accumulation pools connected with each other by means of pressure waterway, hydroelectric generators and supplementary equipment. Upper accumulation pool is arranged in completed breakage heading of upper horizon adjoining shaft or in waste dump formed on ground surface during deposit development. Lower accumulation pool is located in completed breakage heading of lower horizon adjoining the shaft. Each accumulation pool located in completed breakage heading is made as breakage headings communicated with each other through cross headings passing through barrier pillars in upper and lower parts thereof. The breakage headings are separated from active mines with water-tight partitions and connected with atmosphere through inclined cross-headings extending from the shaft. Hydroelectric generators are installed in headings made at shaft bottom in lower horizon. Pressure waterway is arranged in shaft.
EFFECT: decreased costs for pumped-storage plant erection.
FIELD: power engineering.
SUBSTANCE: proposed hydroelectric power station is designed for power generation using energy of flow spring or river. Proposed hydroelectric power station includes diversion dam, diversion cone, head, conduit, action turbine, current generator with drive. Diversion cone is made only in horizontal plane, input of bottom spillway and input of diversion cone are arranged in one plane and heat room is installed over them on top of dam, whose wall pointed to side of water storage is arranged before dam, and its lower edge is deepened to value of freezing of water storage. Action turbine is made in form of disk with volute buckets. Each nozzle of head conduit is made in for, of cone connected with gate of head conduit trough intermediate link of conduit. Additional dc generator is used as braking system to stabilize speed of action turbine. Shaft of said generator is coupled with shaft of main generator, and current from three-phase circuit of main generator is supplied to field winding of additional generator through diode bridge. Moreover, rheostat is used in field winding control circuit of main generator controlled by centrifugal pusher, for instance, of Watt system whose shaft is also coupled with shaft of main generator.
EFFECT: increased power output and provision of constant frequency of current.