| 一种新型微电网谐波与正负序检测方法 |
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| 引用本文： | 牛成玉,傅仲文,于龙. 一种新型微电网谐波与正负序检测方法[J]. 科学技术与工程, 2018, 18(2) |
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| 作者姓名： | 牛成玉 傅仲文 于龙 |
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| 作者单位： | 河北工业大学电气工程学院,河北工业大学电气工程学院 |
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| 摘 要： | 电流谐波与电压不平衡是影响微电网电能质量的两个重要因素。针对目前谐波检测与电压正负序分离方法存在的问题,提出一种基于动态相量的谐波与正负序分量检测方法;该方法既可以用于电流谐波检测,也可用于电压畸变或不平衡条件下的正负序分量分离。采用动态相量法下的Park变换矩阵,简化控制;并且省去了传统检测方法的滤波器与陷波器装置。最后对该方法进行了对比分析,并在有源滤波器仿真中进行了验证分析,仿真结果显示了所提方法的正确性、可行性。
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| 关 键 词： | 谐波检测 正负序检测 动态相量法 Park变换 有源滤波器 |
| 收稿时间： | 2017-05-17 |
| 修稿时间： | 2017-07-24 |
A novel detection method for harmonics and positive-negative sequence decomposition for Microgrid |
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| Affiliation: | Hebei University of Technology,, |
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| Abstract: | Current harmonic and unbalanced voltage are two important factors that affect the power quality for microgrid.In this paper, a novel dynamic phasors based method for both harmonics detection and positive-negative sequence decomposition is proposed. This method involved in a new Park transformation using the dynamic phasors, it can simplify the control structure, and can simplify the design work for a simple control and avoid LPF and BSF. Simulations on the proposed method and its application in APF are presented and show a satisfactory result. |
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| Keywords: | harmonic current detection positive sequence component detection dynamic phasor Park transformation active power filter |
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