孤山航电枢纽工程电气设备选型及布置研究

Study on selection and layout of electrical equipment for Gushan Navigation and Hydropower Project

孤山航电枢纽工程用电设备数量多,种类复杂,供电距离长,可靠性要求高。为满足各用电设备的供电需求,结合孤山航电枢纽工程实际情况,对电气主接线、主要电气设备选择、主变压器及220 kV GIS开关站布置等进行了深入分析与研究,提出了合理的技术方案。结果表明:将220 kV变压器和220 kV GIS开关站布置在同一层,使水电站副厂房的高度降低了10 m。该方案合理、有效地利用了水电站副厂房的空间,既节约了土建工程量,又解决了220 kV配电装置的布置以及架空线路出线问题。同时,孤山航电枢纽工程所有设备技术参数均完全满足运行要求。研究成果可为其他同等规模电站提供参考。

Gushan Navigation and Hydropower Project has many power loads,complex load types,long power supply distance and high reliability requirements.Combined with the actual situation of Gushan Navigation and Hydropower Project,this paper discussed the main electrical wiring,the selection of main electrical equipment,the layout of main transformer and 220 kV GIS switchyard,and put forward a reasonable technical scheme.Through deep comparison and selection of layout plan,220 kV transformer and 220 kV distribution equipment(GIS)were arranged on the same floor,which reduced the height of auxiliary powerhouse by 10 m.The space of the auxiliary power house is reasonably and effectively used,which not only saves the amount of civil works,but also solves the layout of 220 kV power distribution equipment and overhead line outgoing problems.The technical parameters of all equipment fully meet the operation requirements and provide reference for power stations of the same scale in the future.