| 一种基于微分的改进电压跌落检测算法研究 |
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| 引用本文： | 马振华,汪 毅,汤 超.一种基于微分的改进电压跌落检测算法研究[J].防灾减灾工程学报,2015(3):30-35. |
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| 作者姓名： | 马振华 汪 毅 汤 超 |
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| 作者单位： | 国网宁夏电力公司石嘴山供电公司, 宁夏 石嘴山 753000 |
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| 摘 要： | 电压检测算法是动态电压恢复器(Dynamic Voltage Regulator,DVR)关键技术之一,但其响应能力和补偿精度无法同时兼顾的问题制约了 DVR 的发展与应用。为了达到改善该问题对 DVR 的影响的目的,通过深入分析基于瞬时无功理论的 dq0 检测法和单相瞬时电压的 dq0检测法,并引入了微分提取直流分量法,得到一种基于微分的改进电压跌落检测算法。Matlab 仿真结果表明:此算法不仅能够提高响应速度,还大大改善了检测的精度。
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| 关 键 词： | 电压跌落检测算法 瞬时无功理论 三相电压 微分 Matlab 仿真 |
Research on improved algorithm for voltage dropping detection based on differential |
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| MA Zhenhu,WANG Yi,TANG Chao.Research on improved algorithm for voltage dropping detection based on differential[J].Journal of Disaster Prevent and Mitigation Eng,2015(3):30-35. |
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| Authors: | MA Zhenhu WANG Yi TANG Chao |
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| Institution: | Shizuishan Power Supply Filiale of State Grid Ningxia Power Co ,Shizuishan Ningxia 753000 ,China |
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| Abstract: | The algorithm of voltage detection is one of the key technology of dynamic voltageregulator (DVR),its response capability and compensation precision cannot be consideredsimultaneously,which restricted the development and application of DVR. In order to reduce theinfluence of the problem on DVR,by deeply analyzing the dq0 detection method based oninstantaneous reactive power theory and the dq0 detection method of single -phase instantaneousvoltage,introduced the method of differential extracting direct current component,obtains a kind ofimproved algorithm for voltage dropping detection based on differential. The Matlab simulation resultindicates that the method can not only increase the response speed,but also improve the precision ofthe detection. |
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