广州抽水蓄能电站B厂SFC系统升级改造设计
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摘要
通过分析整体改造与局部改造的优缺点,比对了SFC系统电压方案与脉波方案,并对SFC系统内变压器与导体的型式进行了比选,采用Microstation设计软件,进行了三维辅助设计,大幅度降低了改造工程的施工难度。该次改造的分析过程可为新建的抽水蓄能电站SFC系统选型设计提供经验及依据,对其他改造工程也具有借鉴意义。
As the first constructed pumped-storage power plant of China, Guangzhou Pumped-storage Power Plant has been operating for over 20 years. The SFC(Static frequency converter)system has several problems such as original type of SFC out of production, lack of spare parts and exhaustion of SFC life. Modification must be executed because of the turbine mode has been influenced seriously by low reliability of SFC system. In this article, the difference between entire and partial modification, comparison of SFC voltage level and feasibility of dry transformer application has been discussed and analyzed. Besides that, three-dimensional design software Microstation has been utilized which could reduce the construction difficulty. The analysis of the entire project and equipment comparison could provide significant experience for the pumped-storage power plant which under construction and other similar modification projects.
As the first constructed pumped-storage power plant of China, Guangzhou Pumped-storage Power Plant has been operating for over 20 years. The SFC(Static frequency converter)system has several problems such as original type of SFC out of production, lack of spare parts and exhaustion of SFC life. Modification must be executed because of the turbine mode has been influenced seriously by low reliability of SFC system. In this article, the difference between entire and partial modification, comparison of SFC voltage level and feasibility of dry transformer application has been discussed and analyzed. Besides that, three-dimensional design software Microstation has been utilized which could reduce the construction difficulty. The analysis of the entire project and equipment comparison could provide significant experience for the pumped-storage power plant which under construction and other similar modification projects.
引文
[1] 调速电气传动系统:GB/T 12668—2002[S].
[2] Adjustable Speed Electrical Power Drive Systems:IEC 61800-1—1997[S].
[3] 电力变压器(第11部分:干式变压器):GBT 1094.11—2007[S].
[4] IEC/TC 14《电力变压器》技术委员会.Power transformers Part11:Dry-type transformers:IEC60076-11:2004[S].
[5] 变流变压器(第1部分:工业用变流变压器):GBT 18494.1—2001[S].
[6] 抽水蓄能电站设计导则:DL/T5208—2005[S].
[2] Adjustable Speed Electrical Power Drive Systems:IEC 61800-1—1997[S].
[3] 电力变压器(第11部分:干式变压器):GBT 1094.11—2007[S].
[4] IEC/TC 14《电力变压器》技术委员会.Power transformers Part11:Dry-type transformers:IEC60076-11:2004[S].
[5] 变流变压器(第1部分:工业用变流变压器):GBT 18494.1—2001[S].
[6] 抽水蓄能电站设计导则:DL/T5208—2005[S].