比例谐振算法和扰动观测器控制的单相逆变器  

Control method of proportional resonance algorithm and disturbance observer for single phase inverter

作　　者：陈红兵 闵晶妍 CHEN Hong-bing;MIN Jing-yan(College of Electric Engineering,Yingkou Institute of Technology,Yingkou Liaoning 115014,China)

机构地区：[1]营口理工学院电气工程学院,辽宁营口115014

出　　处：《电源技术》2021年第1期107-110,共4页Chinese Journal of Power Sources

基　　金：辽宁省自然科学基金区域联合创新基金(2020-YKLH-33);营口市博士企业双创项目(QB-2019-19);营口理工学院院级科技人才计划项目;2019年大学生创新创业项目。

摘　　要：滤波器参数变化、直流侧电压波动和负载变化等被视为逆变器控制系统的扰动,这些扰动对逆变器的输出电压会产生影响,双闭环控制一般解决不了此类问题。针对上述不足,研究了一种比例谐振算法和扰动观测器的电压控制策略。首先,从理论上研究了扰动观测器抑制外部扰动的有效性和扰动观测器的实现方法;其次,整定了电流控制算法和电压控制算法的参数,设计了扰动观测器。仿真结果表明,所研究的控制策略能有效地抑制输入直流侧电压波动、负载波动和滤波参数变化等扰动,大幅提高了单相逆变器输出电压的质量。There are some disturbances in a single phase inverter control system,including filter parameters variation,DC voltage fluctuation,uncertain loads and so on.These disturbances have a significant effect on the output voltage of a single phase inverter.The routine control method cannot suppress these disturbances.Aimed at the above disadvantages,the output voltage control strategy based on disturbance observer(DOB)and proportional resonance control algorithm was proposed and investigated.The suppressing disturbance effectiveness and realizing method of the DOB were investigated.The parameters of voltage control algorithm and current control algorithm were tuned.The filter of DOB was designed.The suppressing disturbance effectiveness of the proposed control strategy and algorithm is verified through simulation results.The output voltage’s quality of a single phase inverter is greatly increased.

关 键 词：比例谐振控制 扰动观测器 抗扰性 单相逆变器 

分 类 号：TM464[电气工程—电器]