Aviation high-power composite brushless starting power generation system and control method thereof

Abstract

The invention discloses an aviation high-power composite brushless starting power generation system and a control method thereof and belongs to the technical field of aviation starting and power supply systems. The starting power generation system comprises a starting generator, a power generation controller, a multiplexing starting controller, an AC / DC rectifier, an AC / AC converter, a current detection unit, a first conversion contactor, a second conversion contactor, a DC contactor, an AC contactor, a starting contactor, a first multiplexing contactor and a second multiplexing contactor. Theinvention further discloses a control method of the starting power generation system. A multi-winding, AC / DC dual-output and multiplexing control system configuration is provided, the system weight is reduced, the impact of starting and power generation on components is solved, and system efficiency, reliability and safety are improved.

Description

technical field [0001] The invention discloses an aviation high-power composite brushless starting power generation system and a control method thereof, belonging to the technical field of aviation starting and power supply systems. Background technique [0002] Aviation starter power generation technology is an integrated design that uses the reversible principle of the motor to realize the conversion of electrical energy into mechanical energy and mechanical energy into electrical energy. When the aircraft is started, the electrical energy is converted into mechanical energy by converting the power supply to drive the motor to work in an electric state, driving the engine to rotate to meet the speed requirement, and the engine is ignited. After the engine completes the starting process, the engine drives the motor, and the system converts the mechanical energy into the electrical energy required by the aircraft, and supplies power to the electrical equipment of the aircraf...

AI Technical Summary

Problems solved by technology

Patent CN106357164A discloses a doubly salient pole high-voltage DC starter power generation system and its control method. The armature windings of the two-stage electrically excited doubly salient pole motor are connected in parallel with the bridge type uncontrolled rectifier circuit respectively, and are used as the power generation output end of the starter power generation system. , in which the three-phase armature windings of the first electrically excited doubly salient motor are respectively connected to the three-phase full-bridge inverter and the push-pull forward converter in sequence, and the input terminal of the push-pull forward converter is used as the start of the starter power generation system, Solved the imbalance between the starting power supply voltage and the output voltage of the generator, and the problem that the reliability of the system was reduced due to the high-frequency chopping of the high-speed starter generator system.

However, starting with a single set of windings restricts the starting load capacity and cannot meet the needs of AC and DC power consumption.

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