| 电能计量算法在双向计量频繁切换下的性能分析和改进 |
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| 引用本文： | 赵婷,王晓东,王爽,段晓萌.电能计量算法在双向计量频繁切换下的性能分析和改进[J].电测与仪表,2021,58(10):151-157. |
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| 作者姓名： | 赵婷 王晓东 王爽 段晓萌 |
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| 作者单位： | 中国电力科学研究院计量研究所,北京100192 |
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| 基金项目： | 国家电网公司总部科技项目：支撑能源互联网的计量新技术研究 |
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| 摘 要： | 随着光伏发电等分布式能源的普及应用,电能表在现场运行中可能会频繁遇到电能双向变化的情况,而在当前电能表的标准体系中,涉及双向电能计量的要求只规定了正向或者反向下电能表的电能计量准确度,并未对双向切换时的电能计量准确度做出明确要求.文中提出了电能表双向计量的试验模型,基于该模型分析出现有电能计量算法的缺陷,并提出了改进算法一以快速脉冲为单位进行正反电能抵消.改进算法二直接以功率区分方向进行电能累计.经过仿真实验表明:改进的电能表电能计量算法能够很好地满足双向计量频繁切换的应用,解决了现有电能表在双向电能频繁变化时会抵消较多的电能,导致电能计量超差的情况.
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| 关 键 词： | 智能电能表 双向计量 计量算法 |
| 收稿时间： | 2020/11/10 0:00:00 |
| 修稿时间： | 2020/11/10 0:00:00 |
Performance analysis and improvement of metering algorithm under frequent switching of bidirectional metering |
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| Zhao Ting,Wang Xiaodong,Wang Shuang and Duan Xiaomeng.Performance analysis and improvement of metering algorithm under frequent switching of bidirectional metering[J].Electrical Measurement & Instrumentation,2021,58(10):151-157. |
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| Authors: | Zhao Ting Wang Xiaodong Wang Shuang and Duan Xiaomeng |
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| Affiliation: | China Electric Power Research Institute,China Electric Power Research Institute,China Electric Power Research Institute,China Electric Power Research Institute |
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| Abstract: | The existing standards for smart electricity meters only specify the accuracy requirements under the forward or reverse direction, but do not require the accuracy in the case of bidirectional switching. With the popularization and application of distributed energy such as photovoltaic power generation, electricity meters frequently encounter bidirectional change of electric energy in the field. In this paper, the experimental model of bidirectional metering is proposed, the defects of existing metering algorithms are analyzed, and two improved algorithms are proposed. |
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| Keywords: | smart electricity meters bidirectional measurement metering algorithm |
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