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变速恒频水力发电技术及其发展
作者:
作者单位:

1.湖南大学电气与信息工程学院,湖南省长沙市 410082;2.湖南山立水电设备制造有限公司,湖南省邵阳市 422700

摘要:

现有水电站多采用恒速发电系统,不仅会造成周期水能捕获效率下降还会导致机组运行环境恶化。水轮机的变速运行是克服上述弊端的关键,文中对水力发电领域变速恒频技术的应用与发展进行了综述。首先,概述了水电站常见类型以及恒速发电系统原理,并归纳了变速发电系统的优缺点;其次,介绍了变速恒频技术的主要实现方法及运行原理,对比了各变速系统的特性及差异,并分析了各系统的适用性及应用前景。最后,分析了变速恒频水力发电技术的重点与难点,并对其未来发展方向进行了展望。

关键词:

基金项目:

国家重点研发计划资助项目(2018YFB0606000)。

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作者简介:


Variable-speed Constant-frequency Hydropower Generation Technology and Its Development
Author:
Affiliation:

1.College of Electrical and Information Engineering, Hunan University, Changsha 410082, China;2.Hunan Sunny Hydropower Equipment Corporation, Shaoyang 422700, China

Abstract:

Existing hydropower station mostly adopt the constant-speed generation system, which will not only cause a decrease in periodic hydro-energy capture efficiency but also deteriorate the unit operation environment. The variable-speed operation (VSO) of the hydraulic turbine is the key to overcome the above-mentioned drawbacks. This paper reviews the application and development of the variable-speed constant-frequency (VSCF) technology in the hydropower generation field. Firstly, the common types of hydropower stations and the principles of constant-speed generation system are described, and the advantages and disadvantages of VSO systems are induced. Then, the main realization methods and operating principles of the VSCF technology are introduced, the characteristics and differences of each VSO system are compared, and the applicability and prospect of each system are analyzed. Finally, the emphases and difficulties of VSCF hydropower generation technologies are analyzed, and the future development directions are prospected.

Keywords:

Foundation:
This work is supported by National Key R&D Program of China (No. 2018YFB0606000).
引用本文
[1]戴理韬,高剑,黄守道,等.变速恒频水力发电技术及其发展[J/OL].电力系统自动化,http://doi. org/10.7500/AEPS20191118001.
DAI Litao, GAO Jian, HUANG Shoudao, et al. Variable-speed Constant-frequency Hydropower Generation Technology and Its Development[J/OL]. Automation of Electric Power Systems, http://doi. org/10.7500/AEPS20191118001.
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  • 收稿日期:2019-11-18
  • 最后修改日期:2020-07-27
  • 录用日期:2020-06-17
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