电力系统保护与控制
電力繫統保護與控製
전력계통보호여공제
POWER SYSTM PROTECTION AND CONTROL
2014年
6期
33-38
,共6页
赵峰%孙宏斌%余志文%郭庆来%郭文鑫
趙峰%孫宏斌%餘誌文%郭慶來%郭文鑫
조봉%손굉빈%여지문%곽경래%곽문흠
电力系统%分裂运行厂站%无初始地理分区厂站%自动电气分区
電力繫統%分裂運行廠站%無初始地理分區廠站%自動電氣分區
전력계통%분렬운행엄참%무초시지리분구엄참%자동전기분구
power system%stations in split operation mode%stations without initial geography zone%automatic discovery of power system electrical zones
针对以往的基于电气距离的电网自动电气分区方法无法处理分裂运行的厂站以及无初始地理分区厂站的不足,提出一种计及分裂运行和无初始地理分区厂站的电网自动电气分区方法。该方法将分裂运行的厂站在拓扑上进行分割,重新建立几个独立的厂站,并建立这些新产生的厂站与电网中其他厂站间的拓扑连接关系,更加真实准确反映电网实时的运行状态;同时,利用无初始地理分区厂站和各个初始地理分区之间的平均电气距离和功率传输量作为判据将无初始地理分区的厂站并入到联系最紧密的初始地理分区中,考虑了完整的电网模型,使得电网自动电气分区结果更加真实可信。利用广东省电网的算例测试表明:该方法准确考虑了厂站分裂运行的情况,并考虑到了所有投入运行的厂站,电网电气分区结果与运行人员的经验相符,结果真实可信。
針對以往的基于電氣距離的電網自動電氣分區方法無法處理分裂運行的廠站以及無初始地理分區廠站的不足,提齣一種計及分裂運行和無初始地理分區廠站的電網自動電氣分區方法。該方法將分裂運行的廠站在拓撲上進行分割,重新建立幾箇獨立的廠站,併建立這些新產生的廠站與電網中其他廠站間的拓撲連接關繫,更加真實準確反映電網實時的運行狀態;同時,利用無初始地理分區廠站和各箇初始地理分區之間的平均電氣距離和功率傳輸量作為判據將無初始地理分區的廠站併入到聯繫最緊密的初始地理分區中,攷慮瞭完整的電網模型,使得電網自動電氣分區結果更加真實可信。利用廣東省電網的算例測試錶明:該方法準確攷慮瞭廠站分裂運行的情況,併攷慮到瞭所有投入運行的廠站,電網電氣分區結果與運行人員的經驗相符,結果真實可信。
침대이왕적기우전기거리적전망자동전기분구방법무법처리분렬운행적엄참이급무초시지리분구엄참적불족,제출일충계급분렬운행화무초시지리분구엄참적전망자동전기분구방법。해방법장분렬운행적엄참재탁복상진행분할,중신건립궤개독립적엄참,병건립저사신산생적엄참여전망중기타엄참간적탁복련접관계,경가진실준학반영전망실시적운행상태;동시,이용무초시지리분구엄참화각개초시지리분구지간적평균전기거리화공솔전수량작위판거장무초시지리분구적엄참병입도련계최긴밀적초시지리분구중,고필료완정적전망모형,사득전망자동전기분구결과경가진실가신。이용광동성전망적산례측시표명:해방법준학고필료엄참분렬운행적정황,병고필도료소유투입운행적엄참,전망전기분구결과여운행인원적경험상부,결과진실가신。
As substations in split operation mode as well as stations without initial geography zone can’t be considered and treated in the previous automatic discovery method of power system electrical zones based on electrical distance, an automatic discovery method of power system electrical zones considering stations in split operation mode as well as stations without initial geography zone is proposed. Through dividing the substation in split operation mode into several new stations and rebuilding the topological connections between the several new substations and other stations in power system, the real-time operation status of power grid can be reflected more accurately. According to the average electrical distance and power transmission between stations without initial geography zone and geography zones in power system, stations without initial geography zone are put into the initial geography zones with closest connections, which makes the automatic discovery of power system electrical zones more reliable. A test case is done in Guangdong Power Grid of China. The results show that the proposed method considers the real split operation status of substations accurately, covers all of the stations, and the results of electrical zones agree with that of the experience of operators, so the results are reliable.