| 三电平NPC VSC-HVDC的频谱分析及LCL滤波器设计方法 |
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| 引用本文： | 刘军娜,赵成勇,李广凯.三电平NPC VSC-HVDC的频谱分析及LCL滤波器设计方法[J].华北电力大学学报,2010,37(4). |
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| 作者姓名： | 刘军娜 赵成勇 李广凯 |
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| 基金项目： | 国家自然科学基金，"十一"五国家科技支撑计划重点项目 |
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| 摘 要： | 通过双重傅里叶变换,得到三电平载波同相层叠PWM控制方法的换流器输出电压数学表达式,应用于滤波器参数设计。提出了一种考虑VSC-HVDC的运行条件和满足入网电流谐波要求的LCL滤波器设计方法。研究了LCL滤波器的一种无源阻尼电路,给出了阻尼电路各参数之间的关系和参数设计方法。该设计方法适合于工程应用,仿真验证了该方法的有效性。
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| 关 键 词： | 三电平 滤波器 脉宽调制 谐波 阻尼 |
Spectral analysis of three-level NPC VSC-HVDC and design methods of LCL filters |
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| LIU Jun-na,ZHAO Cheng-yong,LI Guang-kai.Spectral analysis of three-level NPC VSC-HVDC and design methods of LCL filters[J].Journal of North China Electric Power University,2010,37(4). |
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| Authors: | LIU Jun-na ZHAO Cheng-yong LI Guang-kai |
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| Abstract: | The output voltage analytical expresstion of the three-level NPC converter with carrier phase disposition PWM control method is obtained by means of dual Fourier transform,which is applied to design the parameters of filters.A design method for LCL filter is presented,which allows for operating conditions of VSC-HVDC and harmonic standards of current injected by a grid.A passive damping circuit to suppress resonance affects is investigated,and the relation and the design method of the parameters of the damping circuit is presented.The method is suitble to engineer application,and is verified valid by simulation. |
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| Keywords: | three-level filter PWM harmonic damping |
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