电工电气
電工電氣
전공전기
ELECTROTECHNICS ELECTRIC
2014年
1期
20-23,32
,共5页
陈玉伟%谢荣%于泳
陳玉偉%謝榮%于泳
진옥위%사영%우영
分布式电源%配电网%短路电流%保护方案
分佈式電源%配電網%短路電流%保護方案
분포식전원%배전망%단로전류%보호방안
distributed generation%distribution network%short-circuit current%protection scheme
分析了分布式电源容量对配电网三段式电流保护的影响,介绍了现有含分布式电源配电网保护方案。提出了对三段式电流保护进行改进,分布式电源上游加装方向性元件,下游根据分布式电源接入容量修改电流保护整定值,并通过仿真验证了方法的可行性,其具有一定的实用价值。
分析瞭分佈式電源容量對配電網三段式電流保護的影響,介紹瞭現有含分佈式電源配電網保護方案。提齣瞭對三段式電流保護進行改進,分佈式電源上遊加裝方嚮性元件,下遊根據分佈式電源接入容量脩改電流保護整定值,併通過倣真驗證瞭方法的可行性,其具有一定的實用價值。
분석료분포식전원용량대배전망삼단식전류보호적영향,개소료현유함분포식전원배전망보호방안。제출료대삼단식전류보호진행개진,분포식전원상유가장방향성원건,하유근거분포식전원접입용량수개전류보호정정치,병통과방진험증료방법적가행성,기구유일정적실용개치。
Analysis was made to the capacity impact of distributed generation on the over-current protection of distribution network. Introduction was made to the existing distribution network protection schemes with distributed generation. This paper raised carrying out improvement of over-current protection, the distributed generation upstream equipped with directional element and the current protection setting value of distributed generation downstream modified according to the distributed generation access capacity. Simu-lation proves it is a feasible method with certain practical value.