| 抑制负序和谐波电流的永磁直驱风电系统并网控制策略 |
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| 引用本文： | 姚骏,陈西寅,廖勇,李辉,黄嵩.抑制负序和谐波电流的永磁直驱风电系统并网控制策略[J].电网技术,2011(7). |
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| 作者姓名： | 姚骏 陈西寅 廖勇 李辉 黄嵩 |
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| 作者单位： | 输配电装备及系统安全与新技术国家重点实验室(重庆大学); |
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| 基金项目： | 国家863高技术基金项目(2007AA05Z422); 国家自然科学基金项目(51007097); 中央高校基本科研业务费资助项目(CDJZR11150009)~~ |
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| 摘 要： | 在详细分析永磁直驱风力发电系统并网电流负序分量及谐波分量产生机理的基础上,从改善永磁直驱风电系统输出电能质量的角度出发,提出了一种采用准比例谐振(quasi-proportional-resonant,quasi-PR)控制器抑制并网负序电流分量及谐波电流分量的控制策略。该控制策略不仅可有效抑制由电网电压不平衡引起的并网电流负序分量,而且能抑制由电网电压或发电系统引入的低次谐波电流分量。仿真验证了上述控制策略的正确性和可行性。
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| 关 键 词： | 风力发电 永磁同步发电机 电网电压不平衡 谐波 准比例谐振控制器 |
A Grid-Connection Control Strategy to Suppress Negative-Sequence and Harmonic Currents for Permanent Magnet Direct-Driven Wind Power Generation System |
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| YAO Jun,CHEN Xiyin,LIAO Yong,LI Hui,HUANG Song,Shapingba District,Chongqing ,China.A Grid-Connection Control Strategy to Suppress Negative-Sequence and Harmonic Currents for Permanent Magnet Direct-Driven Wind Power Generation System[J].Power System Technology,2011(7). |
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| Authors: | YAO Jun CHEN Xiyin LIAO Yong LI Hui HUANG Song Shapingba District Chongqing China |
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| Affiliation: | YAO Jun,CHEN Xiyin,LIAO Yong,LI Hui,HUANG Song(State Key Laboratory of Power Transmission Equipment & System Security and New Technology(Chongqing University),Shapingba District,Chongqing 400044,China) |
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| Abstract: | On the basis of detailed analysis on the mechanism causing negative-sequence and harmonic currents during the grid-connection of permanent magnet direct-driven wind power generation system,to improve the output power quality of permanent magnet direct-driven wind power generation system a control strategy,in which the quasi-proportional-resonant(quasi-PR) controller is adopted,is proposed.The proposed controller not only can effectively suppress the negative-sequence component in grid-connecting current due... |
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| Keywords: | wind power generation permanent magnet synchronous generator(PMSG) unbalanced grid voltage harmonic quasi-proportional-resonant(quasi-PR) controller |
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