| 基于瞬时无功功率理论的谐波检测算法研究 |
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| 引用本文： | 张晓曦,王雪丹,孙少杰,任继伟.基于瞬时无功功率理论的谐波检测算法研究[J].自动化与仪表,2008,23(7). |
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| 作者姓名： | 张晓曦 王雪丹 孙少杰 任继伟 |
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| 作者单位： | 1. 黑龙江科技学院,电气与信息工程学院,哈尔滨,150027
2. 黑龙江科技学院,电气与信息工程学院,哈尔滨,150027;中国矿业大学,电气与信息工程学院,徐州,221008 |
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| 基金项目： | 黑龙江省教育厅骨干教师基金 |
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| 摘 要： | 有源电力滤波器中谐波电流检测电路是决定补偿性能好坏的关键。分析了基于瞬时无功功率理论的三相电路谐波电流检测的两种算法,并根据算法原理在不同电压条件下进行了对比研究。理论分析和实验结果表明,ip-iq算法适用于电网电压不对称情况,而p-q算法在电网电压不对称情况下检测结果有明显误差。
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| 关 键 词： | 有源电力滤波器 谐波电流检测 瞬时无功功率理论 ip-iq p-q |
Research for Harmonics Detecting Based on the Theory of Instantaneous Reactive Power |
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| ZHANG Xiao-xi,WANG Xue-dan,SUN Shao-jie,REN Ji-wei.Research for Harmonics Detecting Based on the Theory of Instantaneous Reactive Power[J].Automation and Instrumentation,2008,23(7). |
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| Authors: | ZHANG Xiao-xi WANG Xue-dan SUN Shao-jie REN Ji-wei |
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| Abstract: | Harmonic current detecting circuit is an important part of active power filter that determines its compensating characters.In this paper,two harmonic current detecting methods based on the theory of instantaneous reactive power of three-phase circuits are analyzed and compared with different voltage condition.The result of theoretical analysis and experiment make it clear that,when source voltages are unbalance,ip-iq calculating mode can precisely detect harmonic currents,but there is apparent errors at the p-q calculating mode. |
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| Keywords: | active power filter harmonic current detecting the theory of instantaneous reactive power ip-iq p-q |
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