| 引用本文: | 王久和,黄立培,张金龙,夏培容.一种新的电压型PWM整流器无源控制器设计[J].电力自动化设备,2008,(10): |
| .Passive controller for three-phase voltage-source PWM rectifier[J].Electric Power Automation Equipment,2008,(10): |
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| 摘要: |
| 为克服现行电压型PWM整流器无源控制器存在的缺点(如负载变化、电源不平衡时存在较大的直流电压稳态误差,系统的响应速度不理想等),基于整流器在两相同步旋转dq坐标系中的欧拉一拉格朗日EL(Euler-Lagrange)数学模型和无源性,通过阻尼注入方法,提出了一种由状态期望稳定平衡点x*、状态x及状态误差xe设计无源控制器的新方法.采用新方法设计的电压型PWM整流器无源控制器,可实现整流器有功电流和无功电流的解耦,使整流器具有更好的动、静态性能,对电源相位、负载扰动具有强的鲁棒性.仿真实验结果表明用新方法设计的电压型PWM整流器无源控制系统性能(如输入电流总谐波扰动THD、直流电压稳态误差、直流电压动态误差、直流电压上升时间及功率因数)优于现行的电压型PWM整流器无源控制系统. |
| 关键词: PWM整流器 EL数学模型 存储函数 无源性 阻尼注入 |
| DOI： |
| 分类号:TM461 |
| 基金项目:北京市教育委员会科技计划重点项目，北京市自然科学基金，北京市属市管高等学校拔尖创新人才计划项目，国家重点实验室基金 |
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| Passive controller for three-phase voltage-source PWM rectifier |
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WANG Jiuhe HUANG Lipei ZHANG Jinlong XIA Peirong
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| Abstract: |
| As the passive controller of existing three-phase voltage-source PWM rectifiers has defects,bigger static DC voltage error induced by load variation or source voltage unbalance;slow system response,etc.,a new passive controller with expected state balance point x,state x and state error xe is designed by damp injection,which is based on the Euler - Lagrange math model of PWM rectifier in synchronous dq coordinates and its passivity. It decouples active current from reactive current to improve the static and dynamic performances of rectifier and its robustness to source voltage phase disturbance and load disturbance. Simulation results show that, the system performance of designed controller is better in input current THD,static DC voltage error,dynamic DC voltage error and DC voltage rising time,and power factor. |
| Key words: PWM rectifier,Euler-Lagrange math model,storage function,passivity,damp injection |
