| 含分布式电源的配电系统保护方案 |
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| 引用本文： | 王菁,邵如平,穆秀云,卢卫清.含分布式电源的配电系统保护方案[J].低压电器,2012(10):14-17. |
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| 作者姓名： | 王菁 邵如平 穆秀云 卢卫清 |
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| 作者单位： | 南京工业大学自动化与电气工程学院,江苏南京,211816 |
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| 摘 要： | 介绍了分布式电源接入配电系统后,采用基于两相电流差的自适应速断电流保护与无通道保护相配合的方案,即故障发生后先采用自适应速断电流保护。由于自适应速断存在保护死区,故以无通道保护作为后备保护。最后,通过对220 V配电系统进行仿真,验证了该保护方案的有效性。
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| 关 键 词： | 分布式电源 两相电流差 自适应速断电流保护 无通道保护 |
Relay Protection Scheme for Distribution System with Distributed Generations Source |
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| WANG Jing
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SHAO Ruping
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MU Xiuyun
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LU Weiqing.Relay Protection Scheme for Distribution System with Distributed Generations Source[J].Low Voltage Apparatus,2012(10):14-17. |
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| Authors: | WANG Jing SHAO Ruping MU Xiuyun LU Weiqing |
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| Affiliation: | (Institute of Automation and Electrical Engineering, Nanjing University of Technology, Nanjing 211816, China) |
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| Abstract: | When distributed generation source is connected to the distribution system, it may have some effect on the flow direction and the distribution of short-circuit current in the distribution network as well as its structure. An adaptive instantaneous trip protection based on the phase differential current combined with non-communication protection was proposed. When the fault occurrs, adaptive current instantaneous trip protection is firstly used, and then taking into account the existence of dead zone, non-communication protection is used for back-up protection. The simulation results on a 220 V distribution system verify the validity of the scheme proposed. |
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| Keywords: | distributed generation source （DGS） phase-to-phase differential current adaptive current instantaneous trip protection： non-communication protection |
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