| 功率测量中互感器角差引起的误差及修正 |
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| 引用本文： | 李晓林,张春,陈胜.功率测量中互感器角差引起的误差及修正[J].电测与仪表,2004,41(9):4-7. |
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| 作者姓名： | 李晓林 张春 陈胜 |
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| 作者单位： | 黑龙江大学,科技开发总公司,哈尔滨,150080;广电集团有限公司,江门恩平供电分公司调度中心,广东,恩平,529400 |
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| 摘 要： | 传统的电力监测设备普遍采用交流采样算法计算功率，由互感器角差带来的相移是影响功率测量精度的主要因素。本分析了互感器的角差对功率测量的影响，并结合交流采样算法，给出对计算出的有功功率、无功功率进行修正的一种算法，此方法运算量小，补偿精度高，可广泛用于交流电量功率测量应用。
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| 关 键 词： | 交流采样 有功功率 无功功率 互感器 角差 |
| 文章编号： | 1001-1390(2004)09-0004-04 |
| 修稿时间： | 2004年6月9日 |
Power error analysis and correction in electric power measurement |
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| Li Xiaolin,Zhang Chun,Chen Sheng.Power error analysis and correction in electric power measurement[J].Electrical Measurement & Instrumentation,2004,41(9):4-7. |
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| Authors: | Li Xiaolin Zhang Chun Chen Sheng |
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| Affiliation: | Li Xiaolin1,Zhang Chun1,Chen Sheng2 |
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| Abstract: | Traditionally,AC sampling algorithm is used to calculate the power of electric power device and the angle difference between two transformers is the main factor that influences the precision of the power measurement. The effect of angle difference between two transformers to precision of the power measurement is analyzed in this paper and a compensative algorithm is given to correct the active power and reactive power. The algorithm has low CPU time and high compensative precision and can be used in AC power compute application widely. |
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| Keywords: | AC sampling active power reactive power transformer angle difference |
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