一种Buck/Boost单级逆变器的研究  

Research on a Single-stage Buck/Boost Inverter

作　　者：蔡兆奇[1] 洪峰[1] 王慧贞[1] 

机构地区：[1]南京航空航天大学,江苏南京210016

出　　处：《电源技术应用》2008年第4期43-47,共5页Power Supply Technologles and Applications

摘　　要：提出了一种新颖的Buck/Boost单级逆变器主电路拓扑,它在输出电压峰值高于输入电压时也能实现逆变。详细分析了电路的工作原理,给出了采用固定开关频率瞬时电流控制策略时的控制方案。Buck/Boost单级逆变器运行于半周期模式,主电路中不存在环流。仿真和实验表明了Buck/Boost单级逆变器实现升压逆变的可行性。A novel single-stage Buck/Boost inverter is proposed, which still works when the DC link voltage is lower than the AC voltage. The principles of the circuit are explained in detail. Fixed switching frequency SPWM instantaneous control with inductor-current feedback is adopted. The inverter operates in the half load cycle mode, with no power flow that is not reflected to the input and the output. The simulation and experiment results both indicate its feasibility.

关 键 词：逆变器 半周期运行模式 瞬时控制 

分 类 号：TM464[电气工程—电器]