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文章摘要
基于准固定频率MSOGI和MPRC的谐波补偿
Quasi-Fixed-Frequency MSOGI and MPRC Based Harmonic Compensation
Received:November 04, 2017  Revised:November 29, 2017
DOI:
中文关键词: 谐波检测  谐波补偿  多重二阶广义积分器  多重比例谐振控制器
英文关键词: Harmonic detection  Harmonic compensation  Multiple second-order generalized integrators  Multiple proportional resonant controllers
基金项目:国家自然科学基金资助项目(61573378)
Author NameAffiliationE-mail
Zhang Aiqun Yinchuan Power Supply Company, Nixia Electric Power Company zhangaiqun1968@126.com 
Cao Qianlei* Qingdao Topscomm Communication Co., LTD. caoqianlei@topscomm.com 
Mai Bo Yinchuan Power Supply Company, Nixia Electric Power Company 240237611@qq.com 
Fan Jianhua Qingdao Topscomm Communication Co., LTD. fanjianhua@topscomm.com 
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中文摘要:
      针对目前谐波检测方法中常存在计算资源大和时效性不强的问题,本文设计一种基于准固定频率多重二阶广义积分器和多重比例谐振控制器的实用化谐波检测与补偿方法。该方法利用准固定频率的多重二阶广义积分器,实时提取出负载电流中的基波和各次谐波成分,并利用多重比例谐振控制器生成所需要的补偿电流,减少电网电流中的谐波含量。仿真和实验结果表明,该策略可以克服常规方法的计算资源大和时效性不强的缺点,准确检测出负载电流中的谐波成分,有效降低电流总谐波畸变率。
英文摘要:
      Most of the existing harmonic detection methods are often confronted with the problems of huge calculation load and weak timeliness. To tackle these problems, a practical harmonic detection and compensation strategy is designed based on quasi-fixed-frequency multiple second-order generalized integrators and multiple proportional resonant controllers. This strategy utilizes the quasi-fixed-frequency multiple second-order generalized integrators to extract the fundamental and harmonic components of the load current in real time and then employs the multiple proportional resonant controllers to generate the compensating current, which reduces the harmonic content of the power grid current. Simulation and experimental results show that the designed strategy can exactly detect the harmonic components and effectively reduce the total harmonic distortion, while overcoming the problems of huge calculation load and weak timeliness of existing methods.
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