【摘要】 对单相桥式电压型变频器的线路设计及结构作了较为详细的介绍 ,给出了主要实验波形。并对单相交流控制系统普遍存在的静态误差较大以及负载变动时引起输出电压波动的原因进行了分析 ,采用“内部模型原理”来设计调节器以减小静态不确定度 ,采用正负反馈相结合的办法来抑制负载变动时控制对象极点的变化更多还原

【Abstract】 The circuit design and structure of single phase bridge voltage inverter are presented in detail. The main experimental waveforms are given. The reasons that the static error is universally bigger in single phase alternating control systems and the output voltage fluctuation resulted from the load changes are analyzed. The regulator is designed with "internal model principle" to reduce the static error. The changes of farthest points of control object are restrained when load changes the combining the positive feedback with negative feedback.更多还原