[关键词]
[摘要]
随着多电化和全电化趋势的发展,飞机电气与电子设备大量增加,恒频系统已不能满足飞机用电需求。飞机供电体制需要由恒频系统向变频系统转变,而变频发电机是变频系统中尤为重要的设备。传统的PID控制采用固定参数,无法很好地在宽变频发电系统中工作,因此提出了基于模糊反步自适应控制算法的控制参数修正方法以提高调压系统适应性。结合三级式发电系统数学模型,设计了调压系统中不确定参数的自适应律分析方法,并建立了基于该算法的调压系统仿真模型。通过仿真验证了模糊反步自适应控制可以有效抑制工作条件变化对调压系统造成的影响,增强调压系统的稳定性和调节性能,为飞机发电机控制器的设计提供理论支持。
[Key word]
[Abstract]
With the development of more-electric and all-electric, aircraft electrical and electronic equipment has increased greatly, and the constant frequency system can no longer meet the demand of aircraft power. The aircraft power supply system needs to transform from constant frequency system to variable frequency system, and variable frequency generator is the most important equipment in variable frequency system. The traditional PID control adopts fixed parameters and cannot work well in the wide variable frequency power generation system, so a control parameter modification method based on fuzzy backstepping adaptive control algorithm is proposed to improve the adaptability of the voltage regulating system. Combined with the mathematical model of three-stage power generation system, an adaptive law analysis method for uncertain parameters in the voltage regulating system is designed, and a simulation model of the voltage regulating system based on the algorithm is established. The simulation results showed that the fuzzy backstepping adaptive control could effectively suppress the influence of working condition changes on the voltage regulating system, enhance the stability and regulation performance of the voltage regulating system, and this algorithm provides theoretical support for the design of aircraft generator controller.
[中图分类号]
TM921.5
[基金项目]