关键词: 增程式发电机组, 环路补偿, 稳压控制, 粒子群算法, 稳压精度

Abstract: In the process of voltage stabilization control experiment of permanent magnet synchronous generator with extended-range generator, although the traditional voltage and current double closed-loop control method can obtain stable DC bus voltage, it had the problems of large voltage fluctuation and long recovery time in the sudden loading test. The voltage loop design was improved, and the voltage inner loop compensation was added on the basis of the original double closed loop. The simulation test and transfer function Bode diagram analysis showed that the method could effectively suppress voltage fluctuation and improve the response speed. In order to improve the control effect, PI control was
combined with immune particle swarm optimization algorithm to realize the PI parameter self-tuning of generator controller and meet the variable parameter requirements of different motors in the generator set. The running results of the algorithm showed that compared with the traditional trial-and-error method, the voltage stabilization accuracy was further improved.

Key words: extended-range generator, loop compensation, voltage stabilization control, particle swarm optimization (PSO), voltage stabilization accuracy