開(kāi)發(fā)了一種采用電磁作動(dòng)器的SPWM 振動(dòng)主動(dòng)控制系統(tǒng)。簡(jiǎn)單介紹了電磁作動(dòng)器的數(shù)
學(xué)模型，通過(guò)仿真分析與試驗(yàn)分析了解了作動(dòng)器的作動(dòng)特性。闡述了SPWM 的調(diào)制原理與頻譜分析。對(duì)某中型貨車發(fā)動(dòng)機(jī)振動(dòng)主動(dòng)控制系統(tǒng)進(jìn)行了控制規(guī)律研究，并應(yīng)用單片機(jī)技術(shù)對(duì)控制系統(tǒng)進(jìn)行了減振試驗(yàn)驗(yàn)證。結(jié)果表明發(fā)動(dòng)機(jī)振動(dòng)衰減明顯，該振動(dòng)主動(dòng)控制系統(tǒng)的設(shè)計(jì)是可行的。
關(guān)鍵詞：振動(dòng)主動(dòng)控制；電磁作動(dòng)器；SPWM；控制系統(tǒng)
Abstract：A SPWM active vibration control system with electromagnetic actuator was designed. The mathematic model of electromagnetic actuator was introduced briefly,and the performance of actuator was understanded with simulation analysis and test analysis.The modulation principle and spectrum analysis for SPWM were expatiated in detailed. The rule of control law was studied for engine active vibration control of some medium-sized truck, and the vibration reduction test was done for active control system applying singlechip technology.The results show that there is obvious vibration reduction for the engine,and the design of active vibration control system is feasible.
Key words：Active vibration control；Electromagnetic actuator；SPWM；Control system