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.
出处
《应用科技》
CAS
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)
