基于自然软开关变流技术的并联型HAPF结构研究  

Research on Parallel HAPF Structure Based on Natural Soft Switch Converter Technology

作　　者：张霞 周宏胭[2] 孟娜[2] 庄晓明[3] 

机构地区：[1]龙煤股份公司双鸭山分公司供电公司,黑龙江双鸭山155100 [2]辽宁工程技术大学电气与控制工程学院,辽宁葫芦岛125105 [3]沈阳低压开关有限公司,辽宁沈阳110000

出　　处：《煤矿机电》2013年第3期37-41,共5页Colliery Mechanical & Electrical Technology

摘　　要：为降低有源电力滤波器的逆变器损耗,并联型HAPF结构在动态补偿电网谐波的过程中,将自然软开关变流技术引入到HAPF中,其软开关条件是在拓扑自然换流时刻产生的,不依赖于谐振参数,也不存在由谐振因数带来的电流或电压应力问题。在控制算法上采用基于锯齿载波的空间电压矢量法,丰富了传统的PWM调制理论。通过Matlab仿真及系统样机实验表明,该并联型HAPF结构不仅补偿效果良好,而且使逆变器的开关频率实现了高频化,大大提高了系统效率。In order to reduce the active power filter inverter losses, the natural soft switching generated through topology natural commutation moments during the process of dynamic compensation parallel HAPF structure, and does not depend on the parameters of the resonance. And also there is condition is harmonic for no current or vohage stress that is brought by the resonant factor. The control algorithm uses space voltage vector method based on sawtooth carrier, which enrich the traditional PWM modulation theory. By the Matlab simulation and prototype experiment, the parallel HAPF not only has good compensation performance, but also make the switching frequency of the inverter realize high frequency and greatly improves the efficiency of the system.

关 键 词：自然软开关变流技术 并联型HAPF 空间矢量脉宽调制(SVPWM) 

分 类 号：TN713.8[电子电信—电路与系统]