电网技术2012，Vol.36Issue(10)：93-98,6.
不同调制策略下两电平电压源换流器损耗分析
Analysis on Power Dissipation in Two-Level Voltage Source Converters Under Different Modulation Strategies
摘要
Abstract
In recent years voltage source converters (VSC) are applied in many power systems step by step, however relatively higher power dissipation is the main obstacle to its applications. Firstly, the constituents of power dissipation in voltage source converter (VSC) are analyzed and the method to calculate these constituents is proposed, on this basis mathematical analysis and derivation of power dissipation in VSC under typical pulse-width modulation (PWM) strategies such as sinusoidal PWM, space vector PWM and optimized PWM are performed, and the power dissipation in VSC is simulated by electromagnetic simulation software PSCAD/EMTDC. The impacts of PWM strategies and switching frequency are validated by results from mathematical analysis and simulation and from the viewpoint of optimized power loss the switching frequency of 1050Hz is recommended and it is pointed out that at present optimal PWM strategy is the modulation mode with lowest power loss.关键词
电压源换流器/损耗分析/调制策略/绝缘栅双极晶体管Key words
voltage source converter/ power loss analysis/ modulation strategy/ insulated gate bipolar transistor (IGBT)分类
信息技术与安全科学引用本文复制引用
吴锐,温家良,于坤山,陈中圆,韩健,蔚泉清,贾娜,王成昊..不同调制策略下两电平电压源换流器损耗分析[J].电网技术,2012,36(10):93-98,6.基金项目
国家自然科学基金项目(50777058) （50777058）
北京市科技计划课题(DL71-11-009). （DL71-11-009）
