| 引用本文: | 李 江,徐志临,李国庆,高亚如,魏文震.配电网微型PMU与故障录波装置研究与开发[J].电力自动化设备,2016,36(9): |
| LI Jiang,XU Zhilin,LI Guoqing,GAO Yaru,WEI Wenzhen.Research and development of micro PMU and fault wave recording device for distribution network[J].Electric Power Automation Equipment,2016,36(9): |
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| 摘要: |
| 针对低电压等级配电网设计开发了一种配电网微型相量测量单元（PMU）与故障录波装置。该装置具有同步相量测量、综合数据采集、设备授时以及故障录波等多个功能。装置充分考虑了硬件成本和安装难度，在满足数据准确度的前提下显著降低成本。装置采用虚拟过零相量测量算法实时测量电压相量；在故障录波中，提出了电气量偏移率与波形曲率相结合的启动判据。给出了相应的硬件设计方案。测试结果表明，该装置测得的数据准确，故障识别速度快，能满足配电网络分析的基本要求。 |
| 关键词: 配电网 微型PMU 综合能量监测 故障录波 |
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| 基金项目:国家自然科学基金资助项目（51307018） |
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| Research and development of micro PMU and fault wave recording device for distribution network |
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LI Jiang, XU Zhilin, LI Guoqing, GAO Yaru, WEI Wenzhen
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School of Electrical Engineering，Northeast Dianli University，Jilin 132012，China
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| Abstract: |
| A micro PMU（Phasor Measurement Unit） and fault wave recording device is developed for the low-voltage distribution network，which has several functions，including synchronous phasor measuring，comprehensive data acquisition，equipment time synchronization and fault wave recording. Its hardware cost and installation difficulty are fully considered and the cost is significantly reduced while the data accuracy is satisfied. The virtual zero-crossing phasor measuring method is adopted to measure the voltage phasor in real time and the startup criterion combining the deviation rate with the waveform curvature of electrical variable is applied in the fault wave recording. The corresponding hardware design is given. Test results show that，the measured data are accurate and the fault is quickly identified，satisfying the basic requirements of power distribution network analysis. |
| Key words: distribution network micro PMU comprehensive energy monitoring fault wave recording |
