| 引用本文: | 王玲,徐柏榆,盛超,等.高采样率数字化变电站电能质量监测系统研究与应用[J].电力系统保护与控制,2014,42(4):110-116.[点击复制] |
| WANG Ling,XU Bai-yu,SHENG Chao,et al.Research and application of digital substation power quality monitoring system with high sampling rate[J].Power System Protection and Control,2014,42(4):110-116[点击复制] |
|
| 本文已被：浏览 3811次 下载 2833次 |
码上扫一扫！ |
| 高采样率数字化变电站电能质量监测系统研究与应用 |
| 王玲,徐柏榆,盛超,赵艳军,王昕,张涛,王新华,叶李花 |
|
|
| (广东电网公司电力科学研究院,广东 广州 510080;深圳市中电电力技术股份有限公司,广东 深圳 518040) |
|
| 摘要: |
| 为解决目前数字化变电站中应用的数字式互感器和合并单元的采样特性无法满足高次谐波和电压暂态事件监测分析等难题，提出了一种具有512点/周波高采样率的数字化变电站电能质量在线监测系统。该系统采用新型高采样率电子式互感器、合并单元和数字式电能质量监测装置，从过程层互感器层面解决采样率低的问题，同时解决了电子式互感器和传统互感器的同时接入、采样率提高后海量数据处理、数字式电能质量监测装置IEC61850建模、合并单元和数字式电能质量监测装置全自动校准等问题。校准试验表明该系统满足电能质量监测功能和准确度标准要求，并且在实际工程中取得良好的效果。 |
| 关键词: 数字化变电站 高采样率 电能质量 在线监测 |
| DOI：10.7667/j.issn.1674-3415.2014.04.018 |
| 投稿时间：2013-05-20修订日期：2013-06-21 |
| 基金项目: |
|
| Research and application of digital substation power quality monitoring system with high sampling rate |
| WANG Ling,XU Bai-yu,SHENG Chao,ZHAO Yan-jun,WANG Xin,ZHANG Tao,WANG Xin-hua,YE Li-hua |
| (Electric Power Research Institute of Guangdong Power Grid Corporation, Guangzhou 510080, China;CEIEC Shenzhen Electric Technology Inc., Shenzhen 518040, China) |
| Abstract: |
| In order to solve the problem that current sampling characteristics of EVCT and MU cannot fulfill the practical demand of power quality analysis such as high-frequency harmonics and voltage transients in digital substations, this paper proposes a new power quality monitoring (PQM) system for digital substation with high sampling rate of 512 points / cycle. By use of new high-sampling-rated EVCT, MU and PQM equipment, the problem of low sampling rate is solved from the beginning of EVCT in process level. Other problems such as retrieving data from both EVCT and traditional transformer, mass data processing derived from high sampling rate, IEC 61850 modeling of digital PQM equipment, automatic calibration of MU and PQM equipment are analyzed and solved at the same time. Calibration result shows that this system can meet the function and accuracy standard and practical application of this system has achieved good results. |
| Key words: digital substation high sampling rate power quality on-line monitoring |
