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| 摘要: |
| 从谐波对电能计量影响进行了分析。研究了线性和非线性负载对有功电能计量的影响,通过谐波下线性负载和非线性负载消耗电能的推导,指出在现行电能计量中存在的不合理之处。并利用实时数字仿真系统(RTDS)对搭建的模型进行了仿真实验,分析了电能表的计量情况和计量误差。由试验结果可知,当存在谐波功率时,用户实际消耗电能量与电能表读数不等,这表明目前电能计量方式存在不合理性。需要采用新的计量方式或新的电量计算方法解决这一问题。 |
| 关键词: 谐波,电能计量,RTDS,仿真 |
| DOI： |
| 分类号:TM933.4 |
| 基金项目: |
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| Influence of harmonics on electric energy measurement |
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SHEN Shaodong WEI Xing
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| Abstract: |
| The influence of harmonics on electric energy measurement is discussed.The influence of linear and non-linear loads on electric energy measurement is studied.The irrationality in present electric energy measurement is pointed out by calculating the energy consumptions of linear and non-linear loads with harmonics.The simulative test is carried out based on the model established with RTDS(Real Time Digital Simulator) and the measuring process and measurement errors are analyzed.Test result shows that the consumer watt-hour is not in accordance with the energy consumed actually when the harmonic exists,so the current electric power measurements still have disadvantages and should be improved. |
| Key words: harmonic,electric energy measurement,RTDS,simulation |
