基于瞬时电压矢量定向的有源电力滤波器补偿电流检测

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摘要结合电力系统无功补偿与谐波治理的基本原则,对基于瞬时无功功率理论的传统谐波电流检测方法在有源电力滤波器中的应用进行了简要分析,进而提出了以电网电压为参考基准,以实现各种非线性负载及阻感、阻容性负载向纯电阻性负载转换为目的的负载电流波形和相位治理原则,并详细阐述了基于瞬时电压矢量定向的补偿电流检测方法。该方法克服了传统方法在电网电压畸变时补偿后电流不能跟随电网电压波形的不足,避免了有源电力滤波器补偿电流过大及畸变无功功率倒送电网现象的出现,同时该方法具有频率自动跟踪、相序自适应等特点。最后,通过仿真和样机试验验证了该补偿电流检测方法的优越性。

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	尹春杰
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关键词 ：有源电力滤波器, 瞬时无功功率理论, 谐波检测, 瞬时电压矢量

Abstract：Based on the principle of reactive power compensation and harmonic control in power system, the application of the traditional harmonic current detection method based on instantaneous reactive power theory is briefly analyzed, and then the principle of load current waveform and phase control is proposed to achieve a variety of nonlinear, inductive, resistive capacitive load conversion to pure resistive load. what′s more, a new method of compensation current detection based on instantaneous voltage vector orientation is described in detail. The new method overcomes the shortcomings of the traditional method that the current can′t follow the grid voltage waveform when the power system voltage distortion is compensated, and averts the phenomenon that the compensation current is too large and the distortion reactive power is sent back to the grid. Meanwhile the method has the advantages of automatic frequency trace and phase sequence self-adaptation. Finally, The superiority of the new method is verified by the simulation and the prototype experiment.

Key words： Active power filter transient reactive power theory harmonic detection transient voltage space vector

收稿日期: 2016-02-29 出版日期: 2017-04-17

PACS:

TM464

通讯作者: 尹春杰男,1970年生,博士,副教授,研究方向为智能微电网控制技术、电力电子与电力传动新技术等。E-mail:yinchunjie@126.com

作者简介: 王芳女,1992年生,硕士研究生,研究方向为智能微电网控制技术等。E-mail:306580432@qq.com

引用本文:

尹春杰,王芳,石磊,张承慧,张玫. 基于瞬时电压矢量定向的有源电力滤波器补偿电流检测[J]. 电工技术学报, 2017, 32(7): 112-118. Yin Chunjie,Wang Fang,Shi Lei,Zhang Chenghui,Zhang Mei. A Novel Compensation Current Detection Method for APF Based on Transient Voltage Space Vector Orientation. Transactions of China Electrotechnical Society, 2017, 32(7): 112-118.

链接本文:

https://dgjsxb.ces-transaction.com/CN/Y2017/V32/I7/112

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