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The Application of Principal Component Analysis in Evaluating of Comprehensive Benefit of Pumped Storage Power Stations

机译：主成分分析法在抽水蓄能电站综合效益评价中的应用

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摘要

Pumped storage power station can take on the tasks of reducing peak and filling valley, emergency reserve, frequency modulation, phase modulation, etc. in power system. It is of significance for improving the stability and flexibility of electric system and amending supply quality and raising network safety and economics. It is an economic and effective regulating way to the power system. So the building of pumped storage power station can improve greatly running of the electric power system, and acquire a better system performance. The comprehensive benefit of pumped storage power station will influence directly the economic rationality and the development scale of it. Combining with economic benefit and social benefit of pumped storage power station, this paper makes a evaluation of comprehensive benefit of it by using the principal component analysis, and points out that the pumped storage power stations lack of the enough price distance between the peak and valley and should pay more attention to the dynamic effects at the present stage.
机译：抽水蓄能电站可以承担降低电力系统的峰谷，填谷，应急储备，调频，调相等任务。这对于提高电力系统的稳定性和灵活性，改善供电质量，提高网络安全性和经济性具有重要意义。这是对电力系统的一种经济有效的调节方式。因此，抽水蓄能电站的建设可以大大改善电力系统的运行，并获得更好的系统性能。抽水蓄能电站的综合效益将直接影响其经济合理性和发展规模。结合抽水蓄能电站的经济效益和社会效益，运用主成分分析法对抽水蓄能电站的综合效益进行了评价，指出抽水蓄能电站的峰谷价差不足。并且应该在现阶段更加关注动态效果。

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