400Hz三环三相逆变器的设计  

Design of the 400 Hz three-loop three-phase inverter

作　　者：张宁[1] 石健将[1] 何湘宁[1] 

机构地区：[1]浙江大学电气工程学院,浙江杭州310027

出　　处：《机电工程》2008年第6期63-66,共4页Journal of Mechanical & Electrical Engineering

摘　　要：以三相逆变器为载体,针对以往双环控制一直存在的静差问题,分析了几种减小静差的方案,然后采用外环输出电压平均值反馈、中环输出电压瞬时值反馈、内环电感电流反馈的三环控制策略,对电路进行了建模,并通过Saber进行了仿真实验。实验结果证明,该方案既能增加系统的可靠性,又可以在限宽的范围内有效地减小静差。According to the steady-state error caused by the two-loop control, the three methods of decreasing the steady-state error were analyzed, and the control scheme of inner inductor current loop, middle instantaneous voltage loop and outer average voltage loop was introduced, the circuit was simulated. The results of the experiment prove that, the plan increases the reliability of the system, reduces the static error in wide range.

关 键 词：三相逆变器 电压平均值 三环控制 静差 

分 类 号：TM464[电气工程—电器]