最小开关损耗电压源整流器死区补偿技术的研究  

Investigation on Dead-zone Compensation Technology for Voltage Source Rectifier with Minimum Switching Losses

作　　者：曹中圣[1] 江剑锋[1] 杨喜军[1] 

机构地区：[1]上海交通大学电气工程系电力传输与功率变换控制教育部重点实验室,上海200240

出　　处：《电气自动化》2012年第2期55-58,61,共5页Electrical Automation

基　　金：自然科学基金(60934005).含风电场电网的协同建模与平稳控制

摘　　要：为了提升电压源整流器的效率,并抑制开关死区时间对整流器性能的影响,需要对开关损耗和死区效应问题进行分析。给出了实现最小开关损耗技术的SVPWM算法,有效降低了系统损耗。同时对整流器死区效应进行了讨论,提出了一种优化的死区设置方法,避免了死区畸变电压的产生,使整流器无需对死区进行补偿。利用MATLAB/Simulink对电压源整流器进行了仿真分析,仿真结果证明了上述方法的正确性和有效性。In order to improve the efficiency of the Voltage Source Rectifier （ VSR ） and suppress the influence of the switch dead-zone on the performance of VSR, it is necessary to investigate issues about switching losses and dead-zone effects. Based on Space Vector PWM algorithm, a minimum switching losses algorithm are presented, which effectively reduce the system losses. A scheme to optimize dead-zone setting method is proposed to avoid the formation of dead-zone distorted voltage, which needs nocompensation for the dead- zone effect. Simulation analyses on VSR are carried out with MATLAB/SIMULINK software, and the simulation results prove that the methods above are correct and effective.

关 键 词：电压源整流器 空间矢量调制 开关损耗 死区效应 补偿 

分 类 号：TM461[电气工程—电器]