| 郑州近期220kV电网开环研究 |
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| 引用本文： | 白宏坤. 郑州近期220kV电网开环研究[J]. 华中电力, 2008, 21(6): 6-10 |
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| 作者姓名： | 白宏坤 |
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| 作者单位： | 河南省电力勘测设计院,河南郑州,450007 |
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| 摘 要： | 由于河南电网结构的不断加强，在河南局部地区220kV电网短路电流水平提高过快，郑州220kV电网短路电流水平高的问题尤其突出，为了进一步降低郑,r11220kV短路电流超水平，必须采取开环的方式。由于郑州2008年短路电流水平已经超过50kA，在一些电网项目投运的前提下，对2009年、2010年郑州电网开环方案进行了研究。通过潮流及短路电流计算，并考虑到电网运行的延续性和灵活性，推荐了开环方案，该开环方案将对河南及郑州电网后三年的电网建设及运行具有指导意义。
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| 关 键 词： | 电网结构 短路电流 潮流分析 开环 |
Recent Zhengzhou 220kV Electric Grid Open Loop Study |
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| BAI Hong-kun. Recent Zhengzhou 220kV Electric Grid Open Loop Study[J]. Central China Electric Power, 2008, 21(6): 6-10 |
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| Authors: | BAI Hong-kun |
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| Affiliation: | School of Electrical Engineering,Wuhan University,Wuhan 430072,China;State Grid Corporation of China,Beijing 100034,China |
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| Abstract: | A experimental device of the relay protection and other secondary system based on DSP is introduced in this paper,and the design method and working principle of the device is also explained.The device can reappear the fault signals and use the signal to test the relay protection device with the optimized design in technology project.The control system with neural network arithmetic and PID method can work well. The performance of the device benefit debugging and the fault analysis of the substation. |
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| Keywords: | test of relay protection DSP neural network PID control |
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