| 电压闪变影响下的功率计算模型与电能计量方法研究 |
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| 引用本文： | 赵恒一,高云鹏,申丽曼,吴聪,陈石东,陈向群.电压闪变影响下的功率计算模型与电能计量方法研究[J].电测与仪表,2020,57(1):121-130. |
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| 作者姓名： | 赵恒一 高云鹏 申丽曼 吴聪 陈石东 陈向群 |
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| 作者单位： | 湖南大学电气与信息工程学院,湖南大学电气与信息工程学院;智能电气量测与应用技术湖南省重点实验室,国网湖南省电力有限公司供电服务中心计量中心;智能电气量测与应用技术湖南省重点实验室,湖南大学电气与信息工程学院,国网湖南省电力有限公司供电服务中心计量中心;智能电气量测与应用技术湖南省重点实验室,国网湖南省电力有限公司供电服务中心计量中心;智能电气量测与应用技术湖南省重点实验室 |
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| 基金项目： | 国家自然科学基金资助项目（51777061）；中国博士后科学基金（2016M602405）；省自然科学基金（2016JJ2022）资助项目 |
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| 摘 要： | 当前针对谐波电能计量技术开展了大量研究,而含有电压波动与闪变畸变信号影响下的电能计量技术研究较少。文章构建了电压波动与闪变影响下的功率数学模型,推导功率的简化计算式,提出了基于小波包分解与重构的电压波动与闪变下的电能计量方法;利用Db45小波函数,采用5层小波包变换,进行电压波动与闪变影响下稳态、非稳态信号的有功与无功电能计量的仿真分析,实验结果证明了算法的可行性与准确性。
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| 关 键 词： | 电压波动与闪变 电能计量 功率计算模型 小波包 分解与重构 |
| 收稿时间： | 2018/10/31 0:00:00 |
| 修稿时间： | 2018/12/12 0:00:00 |
Research on power calculation model and electric energy measurement method under the influence of voltage flicker |
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| Zhao Hengyi,Gao Yunpeng,Shen Liman,Wu Cong,Chen Shidong and Chen Xiangqun.Research on power calculation model and electric energy measurement method under the influence of voltage flicker[J].Electrical Measurement & Instrumentation,2020,57(1):121-130. |
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| Authors: | Zhao Hengyi Gao Yunpeng Shen Liman Wu Cong Chen Shidong and Chen Xiangqun |
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| Affiliation: | College of electrical and information engineering Hunan University,College of electrical and information engineering Hunan University,State Grid Hunan Electric Power Co., Ltd. Power Supply Service Center (Metric Center),College of electrical and information engineering Hunan University,State Grid Hunan Electric Power Co., Ltd. Power Supply Service Center (Metric Center),State Grid Hunan Electric Power Co., Ltd. Power Supply Service Center (Metric Center) |
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| Abstract: | At present, a lot of researches have been carried out on harmonic energy metering technology, while there are few studies on energy metering technology under the influence of voltage fluctuation and flicker distortion signals. In this paper, the power mathematical model under the influence of voltage fluctuation and flicker is constructed, and the simplified calculation formula of power is deduced. The energy measurement method based on wavelet packet decomposition and reconstruction is proposed. The Db45 wavelet function and 5-layer wavelet packet transform is used to simulate the active energy and reactive energy measurement of steady-state and non-steady-state signals under the influence of voltage fluctuation and flicker. The simulation results demonstrate the feasibility and accuracy of the algorithm. |
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| Keywords: | voltage fluctuations and flicker energy metering power measurement model wavelet packet decomposition and reconstruction |
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