采用干扰观测器PI控制的单相SPWM逆变电源  

Single Phase SPWM Inverter with Disturbance Observer PI Controller

作　　者：杨敏杰[1] 曹以龙[1] 江友华[1] 杨俊杰[1] 崔昊杨[1] 

机构地区：[1]上海电力学院电子与信息工程学院,上海200090

出　　处：《电测与仪表》2014年第11期100-106,共7页Electrical Measurement & Instrumentation

基　　金：国家自然科学基金资助项目(项目编号:61202369;61107081;61204105);上海市科技创新行动计划地方院校能力建设项目(11510500900;13160500900);上海市教育委员会科研创新项目(12ZZ176;13YZ102)

摘　　要：采用了一种干扰观测器PI控制的单相正弦脉宽调制(SPWM)逆变电源的控制方案。对该控制策略与传统的PI控制均进行了全面的理论分析,在MATLAB中对分别采用这两种控制策略的逆变电源系统进行了仿真设计,并在DSP平台上采用数字控制算法实现了这两种控制方案。仿真结果与实验结果均表明,与传统的PI控制相比该控制方案能获得更好的动、稳态性能,具有更好的谐波抑制能力,从而验证了理论分析的正确性。The PI control strategy with disturbance observer is adopted in the single-phase SPWM inverter. Comprehensive theoretical analysis of this control strategy and traditional PI control is given, and the inverter systems with these two controllers are designed and simulated respectively in MATLAB. Besides, the control schemes are implemented on DSP platform using digital control algorithm. The simulation result and experimental result prove that compared with traditional PI control, the proposed scheme can achieve good dynamic and steady-state performance with better harmonic suppression, thus verifies the correctness of the theoretical analysis.

关 键 词：逆变电源 PI控制 干扰观测器 数字控制 正弦脉宽调制(SPWM) 

分 类 号：TM762[电气工程—电力系统及自动化]