Starting/generating system and its control method based on two-stage matrix converter

Abstract

The invention discloses a two-stage matrix converter based starting / generating system and a control method thereof. In the system, a starter / generator is disposed on a unidirectional switch side of a converter, and a starting power source and a load are disposed on a bidirectional switch side. On hardware, only a switch needs to be arranged between the starting power source and the load to achieve switching from a starting state to a generating state; during state switching, control algorithms need not to be changed too much; the whole starting / generating system has the advantages of compact structure, efficiency and reliability, achieves starting / generating integrated operation easily, and is suitable for aviation starting / generating systems.

Description

technical field

[0001] The invention relates to a novel starting / generating system based on a double-stage matrix converter and a control method thereof, belonging to the field of matrix converters and starting / generating systems. Background technique

[0002] For a long time, the starting of engines in many occasions such as aircraft and vehicles requires the use of special electric starters (such as brushed DC motors) or non-electric starters (such as air turbine starters and gas turbine starters). The starter / generator technology makes the generator connected to the engine dual-purpose. When the engine is started, it works as a starter, drives the engine rotor to rotate to a certain speed, and then injects fuel to ignite, so that the engine enters a self-working state. After that, the engine drives the motor in turn, making it a generator to supply power to electrical equipment. The starter / power generation integrated technology unifies the generator and starter, elimina...

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