Digital comprehensive control method for voltage of aviation alternating-current generator

Abstract

The invention discloses a digital comprehensive control method for the voltage of an aviation alternating-current generator. The method is characterized in that in the initial voltage buildup processof a generator, the voltage of the generator is set to be slope voltage rising from 0, open-loop control is directly adopted, whether the exciting current output capacity and the generator power generation capacity are normal or not is detected and judged, if yes, work continues, and if not, work stops; and when the given voltage value of the generator reaches a constant given value, double-voltage closed-loop control is accessed, and load current feedforward control, load current negative feedback control, excitation current limit control and excitation power supply voltage feedforward control are combined to realize digital comprehensive control of the output voltage of the generator. The reliability of the power generation equipment can be improved, and the dynamic response speed, the steady-state control precision and the anti-interference capability of the output voltage of the power generation system are improved.

Description

technical field [0001] The invention relates to an optimization of a voltage regulation control method for an aviation three-stage permanent magnet synchronous motor power generation system, and belongs to the technical field of aviation power generation. Background technique [0002] At present, the existing installed and mass-produced aviation generator voltage regulator products are still mainly based on analog circuit voltage regulation. The analog circuit voltage regulator is mainly composed of analog circuits, which have inherent shortcomings of analog circuits, such as difficulty in adjusting parameters, difficulty in obtaining circuit parameters suitable for various states, and difficulty in realizing complex control laws. [0003] With the development of new technologies, the speed range of aviation generators increases, the range of load power changes increases, and the increase in electronic loads leads to increased harmonic content. The response speed of analog v...

AI Technical Summary

Problems solved by technology

The analog circuit voltage regulator is mainly composed of analog circuits, which have inherent shortcomings of analog circuits, such as difficulty in adjusting parameters, difficulty in obtaining circuit parameters suitable for various states, and difficulty in realizing complex control laws, etc.

[0003] With the development of new technologies, the speed range of aviation generators increases, the range of load power changes increases, and the increase in electronic loads leads to increased harmonic content. The response speed of analog voltage regulators is slow, and the steady-state and dynamic performance is poor. It is difficult to meet the requirements of aviation. The need for power system development

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