基于变开通角F-PI并行控制策略的开关磁阻发电机输出电压研究  

Research on Output Voltage of Switched Reluctance Generator Based on Variable Opening Angle F-PI Parallel Control Strategy

作　　者：昝小舒 池飞飞 于东升 吴宁 龚毅 Zan Xiaoshu;Chi Feifei;Yu Dongsheng;Wu Ning;Gong Yi(School of Electrical and Power Engineering China University of Mining and Technology,Xuzhou,221116,China)

机构地区：[1]中国矿业大学电气与动力工程学院

出　　处：《电工技术学报》2020年第S01期182-191,共10页Transactions of China Electrotechnical Society

摘　　要：分析了开关磁阻发电机(SRG)输出电压存在脉动的原因。针对传统PI控制方式下SRG输出电压建压过慢、脉动较大的问题,提出一种变开通角与模糊和PI并行控制的控制策略(变开通角F-PI并行控制策略)。当SRG开始工作时利用开通角的灵活切换实现输出电压的快速建立,并通过给定电压与输出电压的误差及误差的变化率,来实现模糊PWM与PI电流斩波的并行控制。建立基于Matlab/Simulink的SRG非线性模型并进行仿真分析。最后基于实验平台对变开通角F-PI并行控制策略与传统的PI控制策略进行了实验对比分析。实验结果表明,该文提出的基于变开通角F-PI并行控制策略能够使发电电压快速建立,在转速或负载发生变化时可以使输出电压快速跟随给定值,并有效地减小输出电压的脉动,从而提高发电品质。The reason for the output voltage ripple of the switched reluctance generator(SRG)is analyzed.In order to solve the problem of slow voltage build-up and ripple in SRG output voltage under the traditional PI control mode,a control strategy for variable opening angle and fuzzy and PI parallel control is proposed(variable open angle F-PI parallel control strategy).When the SRG starts working,the output voltage is quickly established by changing the opening angle,fuzzy PWM and PI current chopping control are realized by the error of the given voltage and output voltage and the rate of change of the error.The non-linear model of SRG were established by Matlab/Simulink and simulation analysis were conducted.Finally,based on the experimental platform,the experimental analysis of the variable open angle F-PI parallel control strategy and the traditional PI control strategy were carried out.The experimental results show that the F-PI parallel control strategy based on variable opening angle can quickly establish the generator voltage.When the speed or load changes,the output voltage can quickly follow the given value,and effectively reduce the output voltage pulsation,thereby improving the quality of power generation.

关 键 词：开关磁阻发电机 电压脉动 变开通角 模糊 PWM PI 控制 

分 类 号：TM352[电气工程—电机]