Voltage regulation control device and method for aviation high-voltage direct-current generator with wide rotating speed range

Abstract

The invention provides a voltage regulation control device and method for an aviation high-voltage direct-current generator with a wide rotating speed range. A PI adjusting link and PWM signal generation are completed by a digital software module, PI parameters can be set in real time along with the working state of the high-voltage direct-current generator, and then steady-state and transient-state output voltage waveforms of the high-voltage direct-current generator are optimized. Through test contrastive analysis, when the rotating speed and the load are not changed, a digital voltage regulating system can regulate the output voltage of the high-voltage direct-current generator to be within the range required by related standards. When the rotating speed is changed or the load is changed or both the rotating speed and the load are changed, the transient regulation effect of an analog voltage regulation system is far better than that of the digital voltage regulation system, throughcontrastive analysis, it can be known that the digital voltage regulation control system improves the steady-state and transient characteristic curve of the output voltage of the high-voltage direct-current generator, an experiment result curve meets the standard requirement, and the digital voltage regulation control system is practical and effective.

Description

technical field [0001] The invention belongs to aviation electrical technology, and relates to a voltage regulation control device and method for aviation high-voltage DC generators with a wide speed range. Background technique [0002] At present, the single-channel aviation high-voltage DC power generation system mainly includes high-voltage DC generators, generator controllers, line current transformers, load current transformers, main contactors and other products. Among them, the generator controller adjusts the output voltage of the high-voltage DC generator through the traditional analog voltage regulation control method, and its voltage regulation control sub-module mainly includes a signal conditioning module, a PI regulation module, a PWM signal generation module and a power module; the reference voltage The signal and the adjusted voltage signal of the voltage regulation point of the generator are input to the PI regulation module, and the PI regulation module out...

AI Technical Summary

Problems solved by technology

[0003] With the research and development of aviation HVDC generators with a wide speed range, the above-mentioned traditional analog voltage regulation control system can no longer meet the technical index requirements of the output voltage of aviation HVDC generators with a wide speed range. The main reason is that the traditional analog voltage regulation The PI adjustment link of the control system is built through hardware circuits, so the corresponding PI parameters cannot be changed with the working status of the high-voltage DC generator. When the generator speed increases or decreases, the load increases or decreases, etc., It often happens that the transient waveform of the output voltage of the high-voltage DC generator exceeds the requirements of the relevant standards, which will have a large impact on the load connected to the rear end, and even cause serious consequences of burning the load due to excessive voltage

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