可逆三相变换器电压外环双模糊PI控制器研究  

Study on a Double Fuzzy PI Controller of the Voltage Outer Loop in a Reversible Three-phase Converter

作　　者：张维轩 方宇[1] 叶融 王正群[1] ZHANG Wei-xuan;FANG Yu;YE Rong;WANG Zheng-qun(Yangzhou University,Yangzhou 225100,China)

机构地区：[1]扬州大学信息工程学院,江苏扬州225100

出　　处：《电力电子技术》2021年第3期125-129,共5页Power Electronics

基　　金：国家装备预先研究项目(31512040201-2);扬州市厅科技合作资金计划(YZ2018136)。

摘　　要：首先分析了电机驱动器电源前端可逆三相脉宽调制(PWM)变换器的双闭环控制策略,然后针对可逆三相PWM变换器的宽交流侧、宽直流侧电压工况,提出一种以交流侧电压、直流侧给定电压变化量为子模糊控制器输入量的双模糊比例积分(PI)控制方法,设计了子模糊控制器和主模糊控制器的论域并通过加权平均法解模糊实现了PI参数的自适应调整。最后将其应用到驱动器电源前端并通过驱动器电源带电机负载进行实验,实验结果表明电压外环所采用的双模糊PI控制算法能在宽交流侧、宽直流侧电压范围下获得优良的动、静态性能,从而验证了所研究的理论和设计方法的正确性。Firstly,the double closed-loop control strategy of the reversible three-phase pulse-width modulating(PWM)converter at the front-end of the power supply of the motor driver is analyzed.Then,according to the wide AC voltage and wide DC voltage conditions of the reversible three-phase PWM converter,a double fuzzy proportional-integral(PI)control method is proposed,which takes the AC voltage and the DC given voltage variation as the input of the sub fuzzy controller.The domain of sub fuzzy controller and main fuzzy controller is designed,and the adaptive adjustment of the PI parameters is realized by the weighted average method.Finally,it is applied to the front-end of the driver power supply and experiment is carried out by the driver power supply with motor load.Experimental results show that the double fuzzy PI control algorithm used in the voltage outer loop can obtain excellent dynamic and static performance in a wide range of AC and DC voltage,thus verifying the correctness of the theory and design method studied.

关 键 词：脉宽调制变换器 双闭环控制 比例积分控制 

分 类 号：TM46[电气工程—电器]