广西建设抽水蓄能电站的必要性和效益

Necessity of Pumped Storage Power Station Construction in Guangxi & Its Benefit

关键词:  峰谷差  调峰填谷  电网  抽水蓄能电站  必要性  广西

Key words:  difference of peak-valley  pead regulation  electric network  pumped-storage power station  Guangxi

摘要:

广西电网需电量迅猛增加,峰谷差越来越大,迫切需要大量调峰容量。由于广西电网电源结构不合理,水电站调节性能差,枯水期出力小,火电机组最小技术出力高,电网调峰能力不足,汛期基荷容量过剩、造成低谷时大量弃水。建设抽水蓄能电站可以发挥其调峰、填谷双重作用,是当前解决电网调峰行之有效的最佳措施,应加紧实施。

Abstract:

The rapid rise in the demand of electrical energy was accompanied by increased fluctuation in consumption in Guangxi electric network. In the last several years, the situation was more serious in this network needing to produce more energy to cover pead load demands. Because the structure of the network in Guangxi was unreasonable, these stations, whether hydro or thermal, could not adjust their output to fit the considerable variations in iced. The output of the hydrostations varied widely in different periods of the year. There used to be much spilled water in flood period and insufficient power output in low flow period. During minimum load periods, especially in flood period, the continuous base load produced by the thermal stations exceeded the energy consumed.
To build pumped-storage power stations is the best way to cover peak load demands and solve the above problems, Moreover, these energy storage systems are efficiently used to counteract occasional production shortages and avoid local overloading of the grid and resulting breakdowns it may cause, so that it is necessary to improve Guangxi electric network as soon as possible.