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Power distribution system and method Invention is related to a power distribution system and method. The system (10) contains a lot of generating systems (12, 14, 16, 18), at that each generating system (12, 14, 16, 18) contains an alternating current generator (20, 22, 24, 26) coupled directly to the rectifier (28, 30, 32, 34). The alternating current generator (20, 22, 24, 26) with slewing capacity is coupled to the energy source (13, 15, 17, 19). During operation of the energy source (13, 15, 17, 19) the alternating current generator (20, 22, 24, 26) generates an output signal (38, 40, 42, 44) desynchronised in regard to the variety of other generating systems (12, 14, 16, 18) and having a variable velocity. The rectifier (28, 30, 32, 34) coupled directly to the generator (20, 22, 24, 26) is adapted to convert an output signal (38, 40, 42, 44) of the alternating current generator (20, 22, 24, 26) into direct current output signal (46, 48, 50, 52). The direct current distribution bus (36) is connected to direct-current outputs (46, 48, 50, 52) of each rectifier (28, 30, 32, 34). The system (10) contains also a variety of inverters (56, 58, 60, 62) adapted to receive power from the bus (36). The output signal of each inverter (56, 58, 60, 62) is adapted to activate an alternating current motor (64, 66, 68, 70). |
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Configuration of multi-level modular submerged power system Invention is related to the field of eclectic engineering and may be used in power supply systems supplying power to current collectors located far from the shore and under sea. The submerged power system (10) consists of a set of building blocks (12), (13) for modular power converters which are installed both at the side of power supply source (20) and the side of submerged current collector (30); they are united and interconnected in order to meet requirements to expansion of the operation area and configuration of the current collectors. The above power system (10) includes a transmission line/bus (14) which may transfer direct-current electric energy of high or medium voltage from the onshore facilities or upward side of the power supply source (20) to the set of submerged modules (18) of the current collector. The configuration of the multi-level modular power converter at the undersea side of the submerged power system (10) is symmetric to the configuration of the multi-level modular power converter at the onshore/upward side of the above system (10). |
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Combined device (10) for control of power transmission between two centres (42, 46) of DC network and supply of AC motor (13) comprises unit (19) of two three-phase inverters, every of which includes three switching elements connected to specified motor (13), at the same time motor (13) comprises three stator windings connected to two three-phase inverters. Device also comprises module (23) of control of specified unit (19), providing for possibility of controlled power transmission based on DC, stabilisation of DC voltage at one of two specified centres as the other one disconnects and motor (13) control. |
Another patent 2513081.