| 利用电力电子扰动技术的系统对地电容检测方法 |
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| 引用本文： | 朱珂,殷鹏,刘颖英,刘文华.利用电力电子扰动技术的系统对地电容检测方法[J].电力系统自动化,2016,40(23):150-156. |
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| 作者姓名： | 朱珂 殷鹏 刘颖英 刘文华 |
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| 作者单位： | 电网智能化调度与控制教育部重点实验室(山东大学), 山东省济南市 250061,电网智能化调度与控制教育部重点实验室(山东大学), 山东省济南市 250061,全球能源互联网研究院, 北京市 102211,东营供电公司, 山东省东营市 257091 |
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| 基金项目： | 山东省自然科学基金资助项目(ZR2013EEM026);山东省重点科技计划资助项目(2015GGX104010) |
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| 摘 要： | 准确计算系统对地电容对自调谐消弧线圈的精确补偿至关重要。文中利用投切消弧线圈阻尼电阻的电力电子开关,通过短时控制其导通状态以产生含有丰富频率成分的扰动电压、电流。利用该扰动电压、电流信号并结合基于电力电子扰动技术的谐波阻抗测量方法测量系统对地电容以用于预调式消弧线圈的自调谐。该方法现场可实施性强,对消弧线圈工作状态的影响可忽略不计,仿真分析和模拟实验都验证了其有效性。
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| 关 键 词： | 对地电容 晶闸管 阻尼电阻 谐波阻抗 |
| 收稿时间： | 2015/12/24 0:00:00 |
| 修稿时间： | 2016/9/29 0:00:00 |
Detection Method for System Grounding Capacitance Using Power Electronic Disturbance Technology |
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| ZHU Ke,YIN Peng,LIU Yingying and LIU Wenhua.Detection Method for System Grounding Capacitance Using Power Electronic Disturbance Technology[J].Automation of Electric Power Systems,2016,40(23):150-156. |
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| Authors: | ZHU Ke YIN Peng LIU Yingying and LIU Wenhua |
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| Affiliation: | Key Laboratory of Power System Intelligent Dispatch and Control of Ministry of Education (Shandong University), Jinan 250061, China,Key Laboratory of Power System Intelligent Dispatch and Control of Ministry of Education (Shandong University), Jinan 250061, China,Global Energy Interconnection Research Institute, Beijing 102211, China and Dongying Power Supply Corporation, Dongying 257091, China |
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| Abstract: | Accurate calculation of system ground capacitive current is very important for precise compensation for self-tuning petersen-coil. In this paper, the power electronic switch is used to generate disturbed voltage and current containing plenty of frequency components by momentarily controlling its conduction state. The disturbance voltage and current signals are used to measure the ground capacitance in conjunction with the measuring method of harmonic impedance based on power electronic perturbation technique. The method is highly effective, and the impact on the working state of the arc suppression coil can be neglected. Simulation analysis and simulated experiment have proved the effectiveness of the method. This work is supported by Shandong Provincial Natural Science Foundation of China(No. ZR2013EEM026)and Shandong Provincial Key Science and Technology Program of China(No. 2015GGX104010). |
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| Keywords: | grounding capacitance thyristor damping resistance harmonic impedance |
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