三相电压型PWM整流器直接功率控制  

Three-phase boost type PWM rectifiers with a direct power control strategy

作　　者：王宇野[1] 徐新林[1] 

机构地区：[1]哈尔滨工程大学信息与通信工程学院,黑龙江哈尔滨150001

出　　处：《应用科技》2012年第3期66-70,共5页Applied Science and Technology

基　　金：黑龙江省博士后基金资助项目(LBH-Q09153)

摘　　要：为了克服电压定向和虚拟磁链定向直接功率控制技术的缺点,采用了基于输出调整子空间的直接功率控制(ORS-DPC)技术,对三相电压型PWM整流器进行仿真研究.分析了ORS-DPC技术的系统结构和原理,并对输入电压扇区重新进行了划分,给出相应的开关表,使系统性能进一步提高.最后利用Matlab/Simulink进行了仿真,验证了扇区划分改进后系统性能的优越性.研究和分析表明,改进后的ORS-DPC技术保证了对输出电压的良好控制,并且功率因数接近于1.In order to overcome the shortcomings of the voltage-oriented and virtual flux-oriented direct power control strategy, a direct power control strategy based on output regulation subspaces （ORS-DPC） is utilized to study the three-phase boost type PWM rectifiers. The structure and principle of ORS-DPC system were analyzed, the system performance was improved by the re-division of input voltage sectors, and the corresponding switching table was given. Then ORS-DPC system was researched by a simulation model based on MatJab/Simulink, and the simulation results verified a high performance when the input voltage sector was divided again. Research and analysis show that the improved ORS-DPC ensures a good control of output voltage and the power factor is close to 1.

关 键 词：PWM整流器 直接功率控制 输出调整子空间 扇区 功率因数 

分 类 号：TM461[电气工程—电器]