Control method of airplane starting and generating integrated motor

Abstract

The invention belongs to the related technical field of airplanes, and particularly relates to a control method of an airplane starting and generating integrated motor, which comprises the following steps that S1, in a starting mode, firstly, coordinate change needs to be carried out on current; a current waveform under a natural coordinate system is converted into a synchronous rotating shaft, and error-free adjustment can be realized through a PI controller after a measured value is compared with a reference value; S2, SG transition control comprises control of connection and disconnection of a ground power supply, conversion of a closed-loop control strategy and connection and disconnection of an equipment load switch; and S3, in the generating mode, the maximum direct-current voltage output by the SG is limited by the bus voltage. The invention provides a set of complete control strategy of the airplane starting and generating integrated motor. Therefore, the SG can provide enoughkinetic energy when the airplane engine is started, the safety of transition conversion can be guaranteed, the generating mode can be smoothly switched to, high-quality electric energy is provided forthe whole airplane, and technical support is provided for the application of the starting and generating integrated motor to a multi-electric airplane and a full-electric airplane.

Description

technical field [0001] The present application belongs to the technical field related to aircraft, and in particular relates to a method for controlling an aircraft starter motor. Background technique [0002] In order to meet the increasing demand of electric load, reduce aircraft emissions, improve fuel economy, reduce the total system cost, and adapt to the development of aerospace industry, the concept of More Electronic Aircraft (MEA) has been proposed at home and abroad. The starter-generator system (starter-generator, SG) is one of the key subsystems of the MEA. In the starting mode, the SG can be used to start the engine or the auxiliary power unit. In the generating mode, the SG operates as a generator to provide electrical energy for the whole machine. In the past ten years, the continuous increase in the capacity of power generation subsystems and power conversion electronic equipment has provided conditions for the electric starting of engines. [0003] As an in...

AI Technical Summary

Problems solved by technology

The aircraft environment has a more complex electromagnetic environment and harsher working conditions than ground vehicles, and it is impossible to directly learn from the research results of the starter motor in the automotive field

At present, there are many researches on the structure, materials and semiconductor devices of SG motors in the aviation field at home and abroad, but there is no research on the strategy of starting, transition conversion and power generation control of the whole aircraft.

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