Improved hysteresis current control for active power filter

2003 IEEE International Symposium on Industrial Electronics ( Cat. No.03TH8692) Pub Date : 2003-06-09 DOI:10.1109/ISIE.2003.1267929

X. Dianguo, Guo Jianjun, Liu Hankui, Gong Maozhong

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引用次数: 14

Abstract

This paper presents an improved hysteresis current control to enhance the performance of current tracking control for active power filter while reduce the number of switching. This control technique utilizes the advantages of the fast dynamic response of the conventional hysteresis current control and the reduced switching number of the SVM scheme. While the current errors go beyond the outer hysteresis band, a suitable space voltage vector is selected to obtain fast current response, which corresponding the vector of the current error differential is of the largest partial vector in reverse direction of current error vector. Otherwise, the low harmonic current control of SVM is selected to track the reference current and limit the current error within the specified hysteresis band. A set of space vectors including the zero vectors to reduce the number of switching is determined from the information of the middle current error. Then a proper space vector selected according to the inner current error for better current. Lastly, the validity and rapidity of the proposed method are confirmed by experimental tests.

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有源电力滤波器的改进磁滞电流控制

本文提出了一种改进的迟滞电流控制方法，在减少开关次数的同时，提高了有源电力滤波器的电流跟踪控制性能。该控制技术利用了传统迟滞电流控制动态响应快和支持向量机方案开关次数少的优点。当电流误差超出外滞回带时，选择合适的空间电压矢量以获得快速的电流响应，其对应的电流误差微分矢量是电流误差矢量反向的最大偏矢量。否则，选择支持向量机的低谐波电流控制，跟踪参考电流，将电流误差限制在规定的滞后带内。根据中间电流误差信息，确定了一组包含零矢量的空间矢量，以减少开关次数。然后根据内部电流误差选择合适的空间矢量以获得更好的电流。最后，通过实验验证了该方法的有效性和快速性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2003 IEEE International Symposium on Industrial Electronics ( Cat. No.03TH8692)

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