单相电压空间矢量无差拍控制Z源并网发电系统  

Single-phase SVPWM Deadbeat Controlled Z-source Grid-connected Generation System

作　　者：吴凤江[1] 孙秀冬[1] 孙力[1] 赵克[1] 

机构地区：[1]哈尔滨工业大学,黑龙江省哈尔滨市150001

出　　处：《中国电机工程学报》2010年第31期22-27,共6页Proceedings of the CSEE

基　　金：黑龙江省自然科学基金项目(E200625)~~

摘　　要：提出一种新型具有直通零矢量的单相电压空间矢量调制方法,研究其工作原理、开关优化模式以及直通零矢量的产生方法,并将其用于直流电容电压、并网电流双闭环的Z源并网发电系统。引入鲁棒预测电流算法用于并网电流的无差拍控制,以提高系统的控制精度和动态响应性能,同时抑制因模型中的电感值与实际值之间的偏差带来的系统不稳定问题。对该系统进行了仿真与实验研究,结果证明了所提出方法及系统的正确性和可行性。This paper presented a novel single-phase space vector pulse width modulation （SPSVM） with shoot through zero vector. The principle of SPSVM, switch optimal mode and generating way of shoot through zero vector were analyzed. And then it was applied to the Z-source grid connected generation system with dual close loops of DC-link capacitor voltage and grid connected current. The robust predict current algorithm was introduced into the deadbeat controlling of grid connected current to increase the control precision and the dynamic performance, as well as depress the instability caused by the error between the value of practical inductance and the one in model. The simulation and experimental results of the system were given. The results verified the validity and feasibility.

关 键 词：单相电压矢量 Z源逆变器 无差拍控制 并网 

分 类 号：TM464[电气工程—电器]