Control method for parallel operation of double-winding induction generator DC power generation system
A technology for induction generators and power generation systems, which is applied in parallel operation of DC power supplies, control of generators, and control of generators through magnetic field changes. It can solve problems such as difficult control and increased volume, and achieve improved reliability and stability. Reduce the difficulty of parallel control and avoid the effects of many parallel conditions
Active Publication Date: 2020-03-17
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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[0005] The purpose of the present invention is to address the shortcomings of the above-mentioned background technology, provide a method for controlling the parallel operation of a double-winding induction generator DC power generation system, realize the parallel operation of two double-winding induction generators, and solve the problems caused by the existing parallel technology. The control is difficult, and the actual operation increases the volume and other technical problems
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[0017] The technical solution of the invention will be described in detail below in conjunction with the accompanying drawings.
[0018] Two double-winding induction generators operating in parallel in a DC power generation system such as figure 1 As shown, one double-winding induction motor is used as the main generator and connected to the main generator droop controller, and the other double-winding induction motor is used as the slave generator and connected to the slave generator droop controller. When the two generators When the stable output DC voltage is the same, connect the DC output terminal of the secondary generator to the bus bar of the main generator DC output terminal in parallel, and connect the two parallel generators to the DC load.
[0019] The control strategy of a single double-winding induction generator DC power generation system is as follows: figure 2 As shown, both generators adopt the same control strategy of controlling winding flux orientation. ...
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The invention discloses a parallel operation control method for a DC power generation system of a double-winding induction generator, belongs to the technical field of power generation, power transformation or power distribution, and especially relates to a parallel control method for a ship independent power system. The method comprises the steps: controlling a main power generator to stably output a direct current according to a DC voltage given value; updating a no-load voltage of a slave power generator through the DC voltage given value and the active power, required to be outputted, of the slave power generator; updating the quantity of an actual output offset DC voltage given value of the slave power generator through the no-load voltage updating value of the slave power generator and the actual output active power of the slave power generator; controlling the salve power generator to output a direct current according to the quantity of the actual output offset DC voltage givenvalue of the slave power generator, and executing the parallel operation when two power generators stably output DC voltage given values. The method can give play to the advantages of a double-windinginduction motor in an independent power system, does not need to increase the size of the generator in actual operation while reducing the parallel control difficulty, and can be suitable for the parallel operation of the double-winding induction generator in the fields of spaceflight and ships.
Description
technical field [0001] The invention discloses a parallel operation control method of a double-winding induction generator DC power generation system, belongs to the technical field of power generation, transformation or distribution, and particularly relates to a parallel control method of an independent power supply system of a ship. Background technique [0002] In recent years, the rapid development of more electric aircraft, more electric ships, and electric vehicles has put forward new requirements for independent power systems such as large capacity, high performance, high power density, and high efficiency. Throughout the development of power systems in aircraft, ships, and automobiles, they all use DC power generation systems, and DC power generation systems are more and more widely used in independent power systems. The traditional induction generator system has shortcomings and deficiencies such as the load and the power converter are directly connected electrical...
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IPC IPC(8): H02P9/00H02P9/30H02J1/10
CPCH02J1/10H02P9/00H02P9/30
Inventor刘路卜飞飞黄文新刘皓喆
OwnerNANJING UNIV OF AERONAUTICS & ASTRONAUTICS