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文章摘要
基于合成矢量解耦控制的三相PWM整流器的研究
The Study of Three-phase PWM Rectifier with Complex Vectors of Decoupling Control
Received:August 04, 2014  Revised:August 04, 2014
DOI:
中文关键词: PWM整流  d-q坐标系  双闭环  合成矢量  线性解耦
英文关键词: PWM rectifier, d-q synchronous frame, double closed loop, complex vector, the linear decoupling
基金项目:
Author NameAffiliationE-mail
ZHANG Dai-run Institute of Electrical Engineering,Sichuan University zhgdr@163.com 
CHEN Chao* Institute of Electrical Engineering,Sichuan University dq_chenchao@126.com 
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中文摘要:
      针对三相静止坐标系下很难实现无静差调节的不足,采用d-q变换将三相交变量转换成同步旋转坐标系下的直流量来控制。但是,由于系统存在d-q坐标系下变量间相互耦合、控制器的设计对系统参数依赖性过强的问题,造成了当网侧电感因老化等原因数值发生改变时,原系统控制性能会急剧下降的现状,本文提出了基于合成矢量线性化d-q解耦的控制思想,优化了同步旋转d-q坐标系下的电压电流双闭环控制策略,并简要分析了双环控制模型的设计方法。仿真实验表明该模型具有结构简单、较强自适应性。
英文摘要:
      In order to overcome the defects of the difficulty to zero steady-state error condition, a control strategy using d-q transformation which the three phase variable is converted into d-q synchronous rotation coordinates to control is proposed. However, due to the problems of system in d-q axis variable coupling, the A strong dependence between the design of controller and system parameters ,leading to the original system control performance will decrease sharply, because of the values changing of AC filter inductor reasons for aging changes. In this paper, the control strategy is proposed through complex vector Linear d-q decoupling, the double closed loop control strategy is improved through in the d-q synchronous frame, the design method of the double closed loop control model is analyzed. The simulation analysis results demonstrate the simplicity of the proposed model structure, the strong self-adaptability.
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