在綜合分析諧波勵(lì)磁無刷同步發(fā)電機(jī)勵(lì)磁控制系統(tǒng)的基礎(chǔ)上,對(duì)其勵(lì)磁控制策略進(jìn)行了研究,開發(fā)了一套基于DSP( TMS320F2812) 控制的新型柴油發(fā)電機(jī)勵(lì)磁控制系統(tǒng),該系統(tǒng)采用參數(shù)自適應(yīng)模糊PID 控制勵(lì)磁,選用交流采樣方式實(shí)時(shí)檢測(cè)各信號(hào)的瞬時(shí)特性,系統(tǒng)仿真結(jié)果以及在1 臺(tái)25 kW 工頻柴油發(fā)電機(jī)上的試驗(yàn)結(jié)果證明了該控制器具有較好的電壓調(diào)節(jié)特性,系統(tǒng)穩(wěn)態(tài)和暫態(tài)性能完全滿足發(fā)電機(jī)對(duì)勵(lì)磁系統(tǒng)的要求。
關(guān)鍵詞:勵(lì)磁調(diào)節(jié);模糊PID 控制;數(shù)字信號(hào)處理器;交流采樣

Abstract :According to the general analysis of the excitation cont rol system of the harmonious wave excitation brushless synchronous generator and it s characteristics ,a new type of diesel generator excitation cont rol system based on DSP( TMS320F2812) was designed. An adaptive fuzzy PID cont rol of excitation is used in this system. To detect the t ransient characteristics of the signals in a timely manner ,AC sampling was applied.The system simulation result s and the testing result s f rom a 25 kW diesel generator (50 Hz) can prove that the voltage regulation characteristics of the excitation cont rol system are very well ,and both the steadyOstate performance and the t ransient performance of the generator are also good.
Key words :excitation cont rol ;fuzzy PID cont rol ;digital signal processor (DSP) ;AC sampling