| 四桥臂APF定频滞环电流控制 |
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| 引用本文： | 曾江,刘洋,陈浩平,黄海颖,王兴华.四桥臂APF定频滞环电流控制[J].南方电网技术,2015,9(11):42-51. |
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| 作者姓名： | 曾江 刘洋 陈浩平 黄海颖 王兴华 |
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| 作者单位： | 华南理工大学电力学院，广州 510640,华南理工大学电力学院，广州 510640,华南理工大学电力学院，广州 510640,华南理工大学电力学院，广州 510640,华南理工大学电力学院，广州 510640 |
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| 摘 要： | 提出了一种基于空间电压矢量的三相四桥臂APF定频滞环电流控制方法。该方法通过一组外滞环比较器，快速判定参考电压区域，将参考电压矢量空间分成四个平行六面体。通过一组內滞环比较器，根据参考电压所在区域，选择适当的三相开关独立地控制相应的相间电流，解耦后实现定频滞环控制。该方法还考虑了误差电流相位调节，使误差电流达到最优，提高了控制精度，同时保持了稳定的开关频率。最后应用PSCAD/EMTDC电力暂态仿真软件验证了本文方法的有效性。
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| 关 键 词： | 四桥臂 有源滤波器 滞环电流控制 定频 |
Fixed Frequency Hysteresis Current Control of Four-leg APF |
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| ZENG Jiang,LIU Yang,CHEN Haoping,HUANG Haiying and WANG Xinghua.Fixed Frequency Hysteresis Current Control of Four-leg APF[J].Southern Power System Technology,2015,9(11):42-51. |
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| Authors: | ZENG Jiang LIU Yang CHEN Haoping HUANG Haiying and WANG Xinghua |
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| Affiliation: | School of Electric Power, South China University of Technology, Guangzhou 510640, China,School of Electric Power, South China University of Technology, Guangzhou 510640, China,School of Electric Power, South China University of Technology, Guangzhou 510640, China,School of Electric Power, South China University of Technology, Guangzhou 510640, China and School of Electric Power, South China University of Technology, Guangzhou 510640, China |
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| Abstract: | A fixed frequency hysteresis current control method based on space voltage vector is proposed for three-phase four-leg APF. In this method, a set of external hysteresis comparator is used to quickly determine the reference voltage region; the reference voltage vector space is divided into four parallelepipeds. Through a set of internal hysteresis comparator, according to the reference voltage location, three phase switches are selected appropriately to control the corresponding phase-to-phase current independently, then the fixed-frequency hysteretic control technology is realized after decoupling. The method also considers error current phase adjustment so that the error current is optimized, the control accuracy is improved, and the stability of the switching frequency is maintained.Finally, PSCAD / EMTDC power transient simulation software is uesd to validae the effectiveness of the method. |
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| Keywords: | four-leg active filter hysteresis current control fixed-frequency |
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