| LCL滤波的三相整流器主动阻尼控制方法 |
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| 引用本文： | 黄宇淇,姜新建,邱阿瑞.LCL滤波的三相整流器主动阻尼控制方法[J].电力自动化设备,2009,29(2). |
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| 作者姓名： | 黄宇淇 姜新建 邱阿瑞 |
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| 作者单位： | 清华大学电机工程与应用电子技术系电力系统及大型发电设备安全控制和仿真国家重点实验室,北京,100084 |
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| 摘 要： | LCL作为三相电压型有源整流器的输入滤波器存在稳定性问题,通常安置阻尼电阻以避免系统发生谐振.为使LCL滤波的有源整流器在无阻尼电阻的情况下稳定运行,以电压空间矢量控制为平台,提出引入交流滤波电容电流环的主动阻尼控制策略,改变了系统原本不稳定的极点.考虑采样保持、运算及PWM更新引入的延时,建立了包括电流控制环和LCL滤波器在内的存在一个采样周期延时的简化离散模型,并在z平面分析系统的稳定性,优化滤波电容电流环的放大系数.LCL滤波的电压型有源整流装置实验结果表明,整流器未发生电流谐振现象,证明了所提出的主动阻尼控制策略及稳定性分析方法的正确性.
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| 关 键 词： | 有源整流器 LCL滤波器 主动阻尼 电压空间矢量控制 |
Active damping control of three-phase rectifier with LCL-filter |
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| HUANG Yuqi JIANG Xinjian QIU Arui.Active damping control of three-phase rectifier with LCL-filter[J].Electric Power Automation Equipment,2009,29(2). |
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| Authors: | HUANG Yuqi JIANG Xinjian QIU Arui |
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| Affiliation: | State Key Laboratory of Control and Simulation of Power Systems and Generation Equipment;Department of Electrical Engineering;Tsinghua University;Beijing 100084;China |
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| Abstract: | Three-phase VSR(Voltage Source active Rectifiers)with LCL-filter as its input filter usually has stability problems,for which the damping resistors are used to avoid resonance.In order to stabilize the ope- ration of VSR without damping resistors,the active damping control strategy is proposed for AC capacitor current loop of voltage oriented control,which changes the unstable poles of LCL-filter.A simplified dis- crete model including the current control loop and LCL-filter is established with the time del... |
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| Keywords: | active rectifier LCL-filter active damping voltage oriented control |
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