Submersible pumpset control station. RU patent 2520571.

IPC classes for russian patent Submersible pumpset control station. RU patent 2520571. (RU 2520571):

H02P31/00 - CONTROL OR REGULATION OF ELECTRIC MOTORS, GENERATORS, OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS (structure of the starter, brake, or other control devices, see the relevant subclasses, e.g. mechanical brake F16D, mechanical speed regulator G05D, variable resistor H01C, starter switch H01H; systems for regulating electric or magnetic variables using transformers, reactors or choke coils G05F; arrangements structurally associated with motors, generators, dynamo-electric converters, transformers, reactors or choke coils, see the relevant subclasses, e.g. H01F, H02K; connection or control of one generator, transformer, reactor, choke coil, or dynamo-electric converter with regard to conjoint operation with similar or other source of supply H02J; control or regulation of static converters H02M)

Another patents in same IPC classes:

Power conversion device / 2516872
Power conversion device consists of the following components: switching elements (S1-S6) which are connected in parallel to the common current-conducting bus and excite currents with different phases; and a controller (14) of the electric motor which controls the respective switching elements (S1-S6). The controller (14) of the electric motor controls the respective switching elements (S1-S6) so that the direction of current fluctuation stipulated by switching on/off of one switching element is opposite to the direction of current fluctuation stipulated by switching on/off of at least one of other switching elements.

Method for control of asynchronous motor / 2513035
In the control method implemented in accordance with patent claim a preset frequency setting is stopped at change of input alternating voltage within wide range or change in the preset frequency setting; when current or voltage in a direct-current link reaches its critical values the inverter is switched off from the direct-current link till current or voltage in the direct-current link drops below the critical value. In case of change in frequency setting, start-up or shutdown of an asynchronous motor output voltage and frequency are changed according to the same law of scalar variable-frequency control. At inverter cut-off output voltage and frequency are reduced smoothly up to zero value and at restart the asynchronous motor is accelerated smoothly with current values of voltage and frequency in order to exclude generator mode at frequency drift.

Alternating current electric drive / 2512873
Alternating current electric drive contains asynchronous motor, inverter with pulse-width modulated regulator, two stator current sensors, frequency-setting unit for stator field rotation and amplitude voltage, voltage correction setting unit, which contains calculating unit that produces voltage-setting correction signal in function of the calculated parameter - tangent of angle between vectors of current and electromagnetic force of stator calculated on the basis of measured stator phase currents and signals setting phase voltage for the motor. Electric drive operates with actual measured variables thus simplifying algorithm for correction signal calculation and bating demands to the process controller.

Electric drive with synchronous reluctance machine / 2510877
Invention refers to electrical engineering and can be used, for instance, in controlled electric drives of general-purpose industrial machinery and transportation vehicles. Electric drive with synchronous reluctance machine contains two groups of full-pitch polyphase windings distributed evenly along inner stator bore, at that windings of similar stator phases are interconnected in series so that special magnet axes of these winding area mutually orthogonal; beginnings of the first group windings are connected to the supply mains, while ends of the second group windings are connected to input of the non-controllable rectifier, rotor position sensor. Between anode and cathode groups of the rectifier through current sensor there are parallel-connected capacitor and a circuit consisting of in-series transistor switch with bypass diode and choke with bypass diode; output of current regulator is connected to control input of transistor switch, output of commutator switch is connected to its first input and output of current sensor is connected to its second input; the first input of commutator switch is connected to current source of preset value, while its second input is connected to output of the metre metering special voltage vector position at the engine stator, the third input is connected to output of rotor position sensor; outputs of the metre metering special voltage vector position at the engine stator are connected to phase clamps of three-phase power supply source.

Rotating electrical machine / 2510788
Invention is attributed to the field of electric engineering and can be used in rotating electrical machines. According to one aspect of the version rotating electrical machine includes detector and brake. Detector is placed at the side reverse for load, rotating shaft with rotor for setting the target load in motion; it detects position of the shaft turn. Brake can be replaced at external peripheral side of detector in order control shaft.

Multilevel frequency converter with differential voltage levels and bypass semiconductor keys / 2510769
Invention pertains to electrical engineering and can be used in high voltage regulated electrical drives. Multilevel frequency converter with differential voltage levels and bypass semiconductor keys contains input multi-winding transformer, control system and several levels of power cells in each phase. Output voltage of cells for each level is different: output voltage of the first level cells is equal to half of the rated output voltage of frequency converter and each next level is twice less than voltage of the previous level. In parallel to output of each power cell there's bypass semiconductor key, one semiconductor key of power cell is connected to the first control output of the control system by commutator switch in case of the cell failure, while its other control input is connected to the second control output of the control system by commutator switch in operating modes to change output voltage of the frequency converter.

Device to control start and stop of induction motor / 2510125
Device comprises a setter of parameters, two pulse generators, an AC voltage rectifier, a voltage comparator, a voltage integrator, a width-pulse modulator and serially connected binary pulse counters, a register, a permanent memory device, a pulse shaper, a voltage switch, designed for connection into the circuit of operating voltage of the electric motor.

Power converter device and method of device control / 2509405
Power converter device is made so that its arm comprises two groups of semiconductor devices connected in series. Each group of semiconductor devices comprises a switching element and semiconductor element, different from the switching element, connected in parallel. The connection point, to which groups of semiconductor devices are connected in series, is an outlet AC lead. Both ends of the arm are DC leads. Besides, the power converter device comprises also a current sensor, a module of voltage control command generation, a module to calculate voltage drop and a module of switch control.

Device to control excitation of ac motor / 2507658
Device to control excitation of an AC motor including: an inverter (INV), having multiple switched elements exposed to control by connection/disconnection, to convert DC voltage into AC voltage with required frequency, in order to excite an AC motor (6); an opening contactor (MMK) of the motor connected between the inverter (INY) and the AC motor (6); a unit (55) of preliminary detection of a switching operation for detection of the switching operation of the opening contactor (MMK) of the motor to the contact or disconnection of the main contacts and release of a signal of preliminary detection of the switching operation; and a control unit (10A), comprising a unit (70) of inverter control for control of connection/disconnection for multiple switching elements and control of disconnection for an opening contactor (MMK) of the motor and control of the inverter (INV) on the basis of the signal of preliminary detection of the switching operation.

High-voltage frequency-controlled electric drive / 2505918
In the high-voltage frequency-controlled electric drive, an uncontrolled high frequency converter is connected through a multiple-winding single-phase high-frequency transformer to a controlled high frequency converter having a cellular type, wherein inputs of rectifier-inverter cells are connected to corresponding secondary windings of the single-phase high-frequency multiple-winding transformer, the primary winding of which is connected to the output of the uncontrolled high frequency converter, and the input of the latter is connected through a reactor to the mains supply.

Device for control of starter-generator / 2268392
Device comprises asynchronous motor with the short-circuited rotor and shaping unit that generates specified values of the components of the vector of the stator current in the frequency-current control system.

Variable-speed electric motor / 2275734
Proposed variable-speed motor has stator connected to at least one magnetic-field coil and rotor carrying at least two opposing-polarity magnetic poles. Mentioned coil is designed to organize at least two opposing-polarity magnetic-induction poles on mentioned stator. In addition, motor has speed control device incorporating noise filter.

Electromagnetic tracking drive / 2278465
Drive is realized on basis of subordinated coordinates adjustment principle with linear position adjuster, subordinated to current adjustment contour additional nonlinear current check connection, which has transfer coefficient, proportional to coil inductance values G(z), where z - coordinate of core position, and operates at input of dividable division block 4. due to nonlinear control algorithm, linearization of natural nonlinear properties of electromagnetic engine is performed and, thus, high characteristic of adjustment quality are provided for in whole range of core position change.

Linear asynchronous electric drive / 2279752
Inducer consists of cores with coils. Electro-conductive anchor is supported by ball supports. Commutating device connects coils to voltage source through switch and is made with possible connection to voltage source of at least five coils of windings of all cores, forming primary rows along longitudinal axis of inducer, wherein up to its middle it is straight, and after middle - reversed phase alternation order. Transverse rows of core winding coils also have, up to middle - one, and after middle - opposite phase alternation order. Electric drive is provided with n additional cores with windings, outputs of winding coils of which are connected to commutating device, providing for similar commutation of their windings.

Adjusting device for drive with asynchronous motor / 2284645
Adjusting device for drive with asynchronous engine a device for limiting setting value of motor EMF is inserted having node for comparison of output signal of current adjuster to given maximal possible value, connected to elements of adjusting device in accordance to formula of invention.

Fan capacity regulator for alternating-current locomotive / 2285328
Proposed device designed to regulate capacity of fans driven by three-phase induction motors has traction transformer 1 with its primary winding 2 connected to supply mains, auxiliary winding 4 with terminal and intermediate leads, frequency converter built around four thyristors, and control unit 9 whose outputs are connected to control inputs of thyristors. The latter are interconnected in two groups, each having two series-connected thyristors, and are connected to terminal leads of auxiliary winding. One thyristor group is connected to winding cumulatively and other group, differentially. Three-phase induction motor 10 is characterized in enhanced number of low-speed steps; its first phase lead is connected to common point of first-group thyristors, its second phase lead, to common point of second-group thyristors, and third phase lead, to intermediate lead of auxiliary winding.

Fan speed control governor for alternating-current locomotive / 2285329
Proposed device designed to control speed of fan driven by three-phase induction motor has traction transformer 1 with its primary winding 2 connected to supply mains 3, auxiliary winding 4 with terminal and intermediate leads, frequency converter built around two pairs of thyristors connected in parallel opposition, and control unit 9 whose outputs are connected to control inputs of thyristors. First pair of thyristors is connected to one terminal lead and second one, to other terminal lead of auxiliary winding. to terminal leads of auxiliary winding. Three-phase induction motor 10 is characterized in enhanced number of low-speed steps; its first phase lead is connected to loose lead of first pair of thyristors, its second phase lead, to loose lead of second pair of thyristors, and third phase lead, to intermediate lead of auxiliary winding.

Ripple-current motor and commutation improvement device / 2287215
Proposed ripple-current motor incorporating commutation improvement device is supplied with power from uncontrolled single-phase full-wave rectifier. Main-pole field winding is series-connected to armature circuit and commutating-pole winding, to DC amplifier. The latter is controlled by signal proportional to armature current supplied from metering shunt through scaling amplifier to low- and high-pass filters. Low-pass filter separates DC component from signal and high-pass filter separates AC component therefrom. AC component is supplied to phase controller providing phase control in the range of 0 to π. Signal DC component is summed up across amplifier with AC component corrected in phase. Summing amplifier has independent gain controls for channels of both components; control signal is generated at its output and corrected in piecewise-linear approximation unit including saturation of commutating-pole magnetic circuit; then this signal arrives at DC amplifier feeding commutating-pole winding.

FIELD: oil and gas industry.

SUBSTANCE: invention is related to oil-production equipment and namely to control stations for electrocentrifugal pump engines, and it may be used for formation fluid production by means of pumps. The pumpset control station includes a cabinet consisting of the first and second spaces and two additional spaces. Placement of fans used for circulation of the cooling air in the second additional space allowed combining a hydraulic part of the inverter and rectifier cooling systems and the second space in the cabinet with reactive elements of the submersible pumpset control station. Besides, the suggested engineering solution allows use of the second additional space for installation of elements of the control station which require additional cooling. Temperature sensors of the reactive elements cooling systems are installed at the surface of these reactive elements.

EFFECT: improvement in operational reliability of the control station, reduction in maintenance costs, additional saving of electric energy in the cooling system.

3 cl, 5 dwg

The technical field to which the invention relates

The invention relates to the oil-producing equipment, namely management stations engines centrifugal pumps, and can be used for extraction of reservoir fluid with the help of pumps.

The level of technology

Famous control station submersible pump installation (see certifcate EN 97884 U1), which contains the control Cabinet, protection and signaling, the unit of frequency Converter, which includes power electronics and control system, located on the radiator is made of two sections, the system forced cooling and heating of the first volume of the Cabinet, the system of forced cooling of the second volume of the enclosure with the jet elements of the control station of pump installation and system of compulsory cooling and heating radiator frequency Converter, which includes the first box that form two air duct mounted on the inner side of the back wall of the closet, lateral wall of which is the intake of cooling air in both air channel, two centrifugal fan, located opposite each output vents hot air respective the first channel of the trunking, in addition, the first box has a hole to install the heatsink, and the fins are located in the air duct along the stream, and the base of the heat sink is installed inside the Cabinet including isolation of the above air duct from the main volume of the Cabinet, and the system of forced cooling of the second volume of the enclosure with reactive elements includes at least one inlet fan located inside of the second volume of the Cabinet in front of the intake of cooling air to the environment, and the opening of the conclusion of heated air into environment. Each system of forced cooling has its own climate-controller with at least one temperature sensor. Temperature sensor forced cooling system radiator is located at the base of the radiator, the temperature sensors of other systems of forced cooling are located within their respective cooled volumes. The system of forced cooling of the first volume contains at least one fan heater and at least one inlet fan, located in front of the outlet of the third box, located on the inside of the door of the Cabinet in front of the intake of cooling air environment. The group's terminals electrical input and output of the system of forced cooling and heating radiator frequency Converter are situated in a volume of the Cabinet, adjacent to the rear of the first volume of the enclosure. Each group's terminals are located in a separate compartment, equipped with their own door, and the roof of the Cabinet covers both the first and additional volumes of the Cabinet. Power elements of the rectifier and the first phase of the three-phase inverter frequency Converter are located on the first section of the radiator. Power elements of the second and third phases of the three-phase inverter frequency Converter are located on the second section of the radiator. On each section of the radiator there are two temperature sensors, each of which is mounted directly about force element. Each door compartments group of terminals shorter own compartment, and the lower wall of each compartment are designed with a slope towards the outside of the additional scope of the Cabinet. The second volume of the enclosure with reactive elements may be located under both the primary and secondary volumes.

The disadvantage of this control station is relatively low reliability of thermal stabilization system, due to the autonomy of systems of forced cooling. System of forced cooling and heating of the first volume of the Cabinet, forced cooling of the second volume of the enclosure with the jet elements of the station and system of forced cooling and heating radiator frequency Converter hydraulically isolated and each has its own group of fans. The refusal of one of the groups of fans leads to overheating of the elements of the management station and, eventually, to the loss of rabotosposobnosti the management station. In addition, the installation of gauges of temperature of the cooling system of the reactive elements in the cooled volume, and not on the throttle, lead to substantial errors of measurement of temperature of the throttle. This circumstance greatly reduces the reliability of the control station.

Technical result achieved in the result of the invention consists in increasing the reliability of the control station (which is especially important when the plant is operating in difficult climatic conditions), reducing the cost of service stations, an additional energy saving in system of cooling and heating.

Disclosure of the invention

To achieve the technical result designed control station submersible pump unit containing wardrobe control, protection and alarm systems /1/, unit Converter, includes power electronics and control system /2/, located on the heat sink /3/which can be made of two sections, with the power elements of the rectifier and the first phase of the three-phase inverter frequency Converter are located on the first section of the radiator, and power elements of the second and third phases of the three-phase inverter frequency Converter are located on the second section of the radiator, the system of forced cooling and heating of the first volume /4/that contains at least one fan heater and at least one inlet fan, located in front of the outlet of the third box /5/, located on the inside of the door of the Cabinet in front of the intake of cooling air environment, system of forced cooling of the second volume of the enclosure /6/ jet elements of the management station submersible pump unit /7/ and the system of forced cooling and heating radiator Converter frequency, including the first box /8/that form two air channel (bottom channel figure 3 represented by line /9/and top channel is located above the plane of the section)attached to the inner side of the rear wall of the first volume of the enclosure /10/, lateral wall of which is the intake of cooling air in both air channel /11/, two fans /12/, located opposite each output vents hot air of the corresponding channel of the first box (figure 4 closed fans /12/), moreover, the first box has a hole to install radiators /3/, and fin heat sinks are located in the air duct along the stream, and the base of the heat sink is installed inside the first volume of the Cabinet, including isolation of the above air duct from the main volume of the Cabinet, each of the forced cooling system contains its own climate-controller with at least one temperature sensor, and on each section of the radiator there are two temperature sensors, each of which is mounted directly about force element on the basis of the radiator, the temperature sensors of other systems of forced cooling are inside relevant cooled volume, and the group's terminals electrical input and output of the system of forced cooling and heating radiator frequency Converter are situated in a volume Cabinet /13/, adjacent to the rear of the Cabinet, and each group's terminals are located in a separate terminal compartment, equipped with their own door, and the roof rack /14/ covers both the first and additional amounts Cabinet, and each door compartments group of terminals shorter own compartment, and the lower wall of each compartment are designed with a slope towards the outside of the additional volume of the Cabinet, and the second volume of the enclosure with reactive elements /6/ can be located under both the primary and secondary volumes, which, according to the invention, fan forced cooling radiators frequency Converter are located in the second additional volume /15/, which is hydraulically connected with a second volume with reactive elements of the management station submersible pump unit /6/ through holes /16/ in the wall of the second volume, and the second volume is hydraulically connected with the atmosphere through a hole in the bottom, and the second additional volume is situated between the first and additional amounts on the second volume, and the second is the additional amount is possible to install elements of the management station, which requires additional cooling /17/and temperature sensors of the cooling system of the reactive elements /7/ are mounted on the surface reactive elements.

Brief description of drawings

Figure 1 shows a General view of the control station submersible pump unit, which conditionally transparent walls of the Cabinet and no door.

Figure 2 shows a section of the control station.

Figure 3 presents a section of the control station, which shows elements of system of cooling radiators.

Figure 4 shows the General view of the control station behind, with conditionally transparent walls of the second additional volume.

Figure 5 shows the management station back with conventionally the door open terminal compartment.

The implementation of the invention

Maintenance of the necessary temperature level of the first volume /4/, is a system that contains at least one fan heater and at least one inlet fan, located in front of the outlet of the third box /5/, located on the inside of the door of the Cabinet in front of the intake of cooling air environment.

Maintenance of the necessary temperature level is placed inside the Cabinet of control, protection and signaling electrical devices (in particular, reactive components (inductors, capacitors and power modules block frequency Converter) is a climate control system (which is based on the heating system, and discharge outlet of air.

Atmospheric air due to the vacuum created by fans /12/, through the hole /11/ in the first box /8/ goes to air channels (bottom channel figure 3 represented by line /9/and top channel is located above the plane of the section). Flowing fins of the radiator /3/, located in the channels of the first box, the air cools unit of the frequency Converter, which includes power electronics and control system /2/, located on the radiators /3/. Through the outlet for output of hot air of the corresponding channel of the first box (figure 4 closed fans /12/) atmospheric air is fed to the input fans /12/where under the pressure created by the fan comes on the second additional amount /15/where can cool the installed elements of the control station /17/, which requires additional cooling. From the second additional volume /15/ atmospheric air through holes /16/ in the wall of the second volume are placed in the second volume /6/ and, after the jet elements of the management station submersible pump unit /7/, is expelled into the atmosphere through the holes in the bottom of the second volume. The temperature sensors of the cooling system of the reactive elements /7/ are mounted on the surface reactive elements.

The design of the management station can be used to control both drives submersible pumps and drives any other device with a valve and asynchronous motors.

1. Control station submersible pump unit containing wardrobe control, protection and alarm, the unit of frequency Converter, which includes power electronics and control system, located on the heat sink that can be made of two sections, with the power elements of the rectifier and the first phase of the three-phase inverter frequency Converter are located on the first section of the radiator, and power elements of the second and third phases of the three-phase inverter frequency Converter are located on the second section of the radiator, the system of forced cooling and heating the first volume, which contains at least one fan heater and at least one inlet fan, located in front of the outlet of the third box, located on the inside of the door of the Cabinet in front of the intake of cooling air environment, system of forced cooling of the second volume of the enclosure with the jet elements of the management station submersible pump installation and system of compulsory cooling and heating radiator frequency Converter, which includes the first box that form two air duct mounted on the inner side of the rear wall of the first volume of the Cabinet, lateral wall of which is the intake of cooling air in both air channel, two fans, located opposite each output vents hot air of the corresponding channel first boxes, in addition, the first box has a hole to install the heatsink, and the fins are located in the air duct along the stream, and the base of the heat sink is installed inside the Cabinet including isolation of the above air duct from the main volume of the Cabinet, each of the forced cooling system contains its own climate-controller with at least one temperature sensor, and on each section of the radiator there are two temperature sensors, each of which is mounted directly about force element on the basis of the radiator, the temperature sensors of other systems of forced cooling are located within their respective cooled volume, and the group's terminals electrical input, output and forced cooling system radiator frequency Converter are located in the second additional volume of the Cabinet, adjacent to the rear of the first volume of the Cabinet, and each the group's terminals are located in a separate compartment, equipped with their own door, and the roof of the Cabinet covers both the first and additional amounts Cabinet, and each door compartments group of terminals shorter own compartment, and the lower wall of each compartment are designed with a slope towards the outside of the additional volume of the Cabinet, and the second volume of the enclosure with reactive elements located under both the primary and secondary volumes, wherein the fan forced cooling radiators frequency Converter are located in the second additional amount that hydraulically connected with a second volume with reactive elements of the management station submersible pump unit through openings in the wall of the second volume, and the second volume is hydraulically connected with the atmosphere through a hole in the bottom, and the second additional volume is between the first and additional amounts on the second volume.

2. Control station pumping unit according to claim 1, wherein the second is the additional volume elements installed the management station, which requires additional cooling.

3. The control station of pumping unit according to claim 1, characterized in that the temperature sensors of the cooling system of the reactive elements are mounted on the surface reactive elements.