| 基于准比例谐振控制的三相并网逆变器谐波补偿方法研究 |
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| 引用本文： | 李继侠,杨苹,陈红生,陈庆前,董旭柱. 基于准比例谐振控制的三相并网逆变器谐波补偿方法研究[J]. 低压电器, 2014, 0(11): 49-54 |
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| 作者姓名： | 李继侠 杨苹 陈红生 陈庆前 董旭柱 |
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| 作者单位： | 华南理工大学电力学院广东省绿色能源技术重点实验室;南方电网综合能源有限公司;南方电网科学研究院有限责任公司; |
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| 基金项目： | 国家自然科学基金项目(61273172);广东省战略性新兴产业核心技术攻关项目(2012A032300001) |
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| 摘 要： | 针对电网不平衡和畸变条件下,传统并联谐振谐波补偿并不能有效抑制电网谐波引起的参考电流谐波对逆变器输出电流的影响的缺点,提出了一种改进型并联准比例谐振（QPR）谐波补偿方法,有效抑制了电网电压谐波引起的参考电流谐波。仿真结果表明,改进型谐波补偿方法有效地降低了并网电流的总谐波畸变率,提高了逆变并网系统的电能质量。
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| 关 键 词： | 并联谐振 准比例谐振(QPR) 三相并网逆变器 谐波补偿 |
Research on Harmonic Compensators for Three-Phase Grid-Connected Inverters with Quasi Proportional Resonant Control |
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| Affiliation: | LI Jixia, YANG Ping, CHEN Hongsheng, CHEN Qingqia, DONG Xuzhu ( 1. School of Electric Power, South China University of Technology, Guandong Key Laboratory of Clean Energy Technology, Guangzhou 510640, China; 2. Synthesized Energy Co. Lt, J of CSG, Guangzhou 510075, China ;3. Research Institute of China Southern Power Grid Co. Ltd. , Guangzhou 510080, China) |
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| Abstract: | Traditional parallel resonant harmonic compensator can not eIIe,3tlvely suppress me ummt, m,： contained in output current of grid-connected PV inverters when the utility voltage under unbalanced and distorted conditions. An improved parallel quasi proportional resonant（QPR） harmonic compensate method was put forward to solve this problem ,which restrains the reference current harmonic caused by grid voltage effectively. The simulation results show that the modified harmonic compensation method can effectively reduce the total harmonic distortion of grid current and improve the power quality of grid-connected inverter system. |
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| Keywords: | parallel resonant quasi proportional resonant （QPR） three-phase grid-connectedinverter harmonic compensation |
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