| 有源滤波器定频滞环电流控制新方法 |
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| 引用本文： | 曾江,焦连伟,倪以信,陈寿孙,张宝霖.有源滤波器定频滞环电流控制新方法[J].电网技术,2000,24(6):1-8. |
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| 作者姓名： | 曾江 焦连伟 倪以信 陈寿孙 张宝霖 |
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| 作者单位： | 1. 清华大学电机系,北京,100084
2. 香港大学电机与电子工程系,香港 |
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| 摘 要： | 提出了一种基于优化电压矢量的有源滤波器定频滞环电流控制新方法。该方法用一组滞环比较器判定参考电压矢量所在区域，并据此选择适当的两相半用定频滞性相间电流，以实现良好的电流跟踪。这一方法的主要特点是无需估计系统阻抗参数即可用优化电压压矢量实现定频滞一半戏具有较高的直流电压利用率和较高的控制精度，又保持了稳定的开关频率，从而有效的提高了有源滤波器的综合性能。计算机仿真结果表明了本方法的有效性。
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| 关 键 词： | 有源滤波器 滞环电流控制 电力系统 无功补偿 |
| 文章编号： | ： |
A NEW CURRENT CONTROL METHOD FOR ACTIVE POWER FILTERS WITH CONSTANT SWITCH FREQUENCY |
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| ZENG Jiang,JIAO Lian-wei,NI Yi-xin,CHEN Shou-sun,ZHANG Bao-lin.A NEW CURRENT CONTROL METHOD FOR ACTIVE POWER FILTERS WITH CONSTANT SWITCH FREQUENCY[J].Power System Technology,2000,24(6):1-8. |
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| Authors: | ZENG Jiang JIAO Lian-wei NI Yi-xin CHEN Shou-sun ZHANG Bao-lin |
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| Abstract: | In this paper a novel hysteresis current control method based on quasi optimized space voltage vectors for Active Power Filters (APF) with constant switching frequency is proposed. The location region of reference voltage vector is detected by a set of hysteresis comparators. Two appropriate switches are then selected to control the two corresponding inter phase currents independently. This method is characterized by constant switching frequency without estimating the parameter of the system, the high utilizing rate of DC voltage and good control accuracy. The comprehensive performance of APF is improved noticeably which is verified by computer simulation results. |
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| Keywords: | Active Power Filters (APF) power system harmonics power quality hysteresis current control voltage space vector |
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