差动正激直流斩波器型高频环节逆变器  

Differential Forward DC-DC Chopper Mode Inverter With High Frequency Link

作　　者：王国玲[1] 陈道炼[1] 

机构地区：[1]福州大学电力电子与电力传动研究所,福建省福州市350108

出　　处：《中国电机工程学报》2010年第24期36-41,共6页Proceedings of the CSEE

基　　金：福建省自然科学基金重点项目(E0620002);高等学校博士学科点专项科研基金资助项目(20060386002)~~

摘　　要：提出差动正激直流斩波器型高频环节逆变器电路拓扑,并对该逆变器的电路拓扑、输出电压与滤波电容电流瞬时值反馈控制策略、稳态原理特性、关键电路参数设计准则等进行深入地分析研究。该逆变器是由输出低频正、负半周的单极性正弦脉宽调制电压波且共用输入、输出滤波器的两个双向正激直流斩波器以差动电路构成。理论分析结果表明,该逆变器具有高频电气隔离、电路拓扑简洁、双向功率流、单级功率变换、输出电压波形质量高、负载适应能力强等优点。原理试验证实了该逆变器的正确性与可行性。A circuit topology of differential Forward DC-DC chopper mode inverter with high frequency link was proposed.The circuit topology,instantaneous value feedback control strategy of output voltage and filtering capacitance current,steady principle characteristic and design criteria of the key circuit parameters were fully investigated in this paper.The inverter consists of two same bi-directional forward DC-DC choppers with differential mode.The two choppers with the same input and output filter separately output positive and negative half cycle uni-polarity SPWM voltage waveforms.The theoretical analysis results show that the inverter has the advantages such as high frequency electrical isolation,simple circuit topology,bi-directional power flow,single-stage power conversion,output sinusoidal voltage waveform with low THD,strong adaptability to various loads etc.The correctness and feasibility of the inverter are fully verified by the principle experimental results.

关 键 词：正激直流斩波器 有源钳位 双向功率流 差动 高频环节逆变器 

分 类 号：TM46[电气工程—电器]