| 基于双闭环控制的三相三电平PWM整流器研究 |
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| 引用本文： | 刘辉.基于双闭环控制的三相三电平PWM整流器研究[J].工矿自动化,2013,39(8):72-75. |
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| 作者姓名： | 刘辉 |
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| 作者单位： | 天地科技股份有限公司,北京,100013 |
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| 基金项目： | 天地科技股份有限公司研发项目 |
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| 摘 要： | 针对三相三电平PWM整流器具有输出谐波少、电流畸变率小、适合向高压和大容量方向发展的特点,提出了一种基于双闭环控制的三相三电平PWM整流器的设计方案;分析了该整流器主电路原理及其数学模型的建立,详细介绍了电压外环和电流内环双闭环控制策略、中点电压平衡控制策略的实现。Matlab/Simulink仿真结果表明,该整流器具有良好的动态和稳态性能。
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| 关 键 词： | 三电平PWM整流器 双闭环控制 电压环 电流环 中点电压平衡控制 PI调节 |
Research of three-phase three-level PWM rectifier based on double closed-loop control |
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| Abstract: | In view of characteristics of less output harmonics,low distortion rate of current and suitable for development of high-voltage and large capacity,the paper proposed a design scheme of three-phase three-level PWM rectifier based on double closed-loop control.It analyzed principle of main circuit and building of mathematical model of the rectifier,introduced implementation of control strategies of double closed-loop with voltage loop and current loop and neutral-point voltage balance in details.The simulation result of Matlab/Simulink shows that the rectifier has good dynamic and stable performances. |
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| Keywords: | three-level PWM rectifier double closed-loop control voltage loop current loop control of neutral-point voltage balance PI regulation |
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