| 三相不对称负荷功率测量误差校正方案 |
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| 引用本文： | 殷家敏.三相不对称负荷功率测量误差校正方案[J].重庆电力高等专科学校学报,2011(6):62-64. |
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| 作者姓名： | 殷家敏 |
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| 作者单位： | 湖北工业大学电气与电子工程学院,湖北武汉430068 |
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| 摘 要： | 为提高功率测量的精度,针对三相负荷不对称时,三表法测量三相四线制电路有功功率存在测量误差的问题,提出从检测负荷虚拟中性点电压出发,将三相不对称负荷电路转化为三个单相电路,按照单相电路功率计量方法来计量各独立相负荷功率的方案。
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| 关 键 词： | 三相不对称负荷 功率测量 误差校正 虚拟中性点电压 |
The Error Correction Scheme of the Measurement of the Three-phase Asymmetric Load Power |
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| YIN Jia-min.The Error Correction Scheme of the Measurement of the Three-phase Asymmetric Load Power[J].Journal of Chongqing Electric Power College,2011(6):62-64. |
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| Authors: | YIN Jia-min |
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| Affiliation: | YIN Jia-min(School of Electrical and Electronic Engineering of Hubei University of Technology,Wuhan Hubei 430068,China) |
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| Abstract: | In the case of the three-phase asymmetric load,the three-ammeter method in the measurement of the active power of the three-phase and four-wire circuit will cause the measurement error.In order to improve the accuracy of the power measurement,this essay suggests starting with the detection of the virtual neutral-point voltage,changing the three-asymmetric load circuit into three one-phase circuits,and measuring the load power of each phase by using the method used in power measurement of the single-phase circuit. |
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| Keywords: | three-phase asymmetric load power measurement error correction virtual neutral-point voltage |
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