数字式调压器的模糊PID控制器设计

针对飞机变频交流数字式调压系统非线性的特点，将模糊控制与PID控制相结合设计了调压器的控制算法并构造了多闭环反馈控制策略。介绍了模糊PID控制器的设计方法及建模过程，在Simulink中搭建了模糊PID控制的仿真模型，对该控制器在不同工况下的调压性能进行了仿真并与传统PID控制仿真结果对比分析，结果表明模糊PID控制下的调压器动稳态性能均优于传统PID控制。最后，基于双DSP硬件平台进行试验验证，并与某型飞机典型用电负载交联，试验结果证明了所设计控制器的正确性及有效性。

Design of Fuzzy PID Controller for Digital Voltage Regulator

In view of the nonlinear characteristics of aircraft variable frequency AC digital voltage regulator system, the fuzzy control is combined with PID control to design the control algorithm of digital voltage regulator and construct a multi closed loop feedback control strategy. The design method and modeling process of fuzzy PID controller are introduced, and then the simulation model of fuzzy PID control is built in Simulink. The voltage regulation performance of the proposed control and the traditional PID control are compared under different operation conditions. The results show that the dynamic and steady-state performances of the regulator under fuzzy PID control are better than those of the traditional PID control. Finally, the experimental verification based on dual DSP hardware platform is carried out, and it is cross-linked with the typical electrical load of a type of aircraft. The experimental results prove the correctness and effectiveness of the designed controller.