Small Hydropower Plant With Integrated Turbine-Generators Working at Variable Speed
Small Hydropower Plant With Integrated Turbine-Generators Working at Variable Speed
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DOI：
10.1109/tec.2013.2247605
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发表时间：
2013-03
影响因子：
4.9
通讯作者：
D. Borkowski;T. Węgiel
中科院分区：
文献类型：
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作者：
D. Borkowski;T. Węgiel
由于对可再生资源和分布式能源发电的兴趣日益增加，目前的小型水力发电厂（SHPs）具有很大的发展潜力；然而，在河流工程中发现的可变水文条件需要在大范围的水流和水头变化上进行操作。为了保持能量转换系统的高效率，需要特殊的控制方法和系统拓扑结构。本文提出了一种基于创新发电机组（水力机组）的完整的SHP解决方案：螺旋桨涡轮机与永磁同步发电机集成在一个利用交流/直流/交流变换器并网系统中以变速工作。介绍了该能量转换系统的主要组成部分。提出了一种专用的控制策略并进行了验证。这里展示的所有结果都来自一个实际的150千瓦的SHP，它包含两个创新的水力发电机组，在同一条河流上并联工作。
Present-day small hydropower plants (SHPs) have a large development potential because of the increasing interest in renewable resources and distributed energy generation; however, the variable hydrological conditions that are found in run-of-the-river projects require operations over a wide range of water flow and head variations. Special control methods and system topologies are needed to maintain the high efficiency of energy conversion systems.This paper presents a complete SHP solution based on an innovative generation unit (hydro-set): a propeller turbine is integrated with a permanent magnet synchronous generator working at a variable speed in a grid-connected system that utilises an ac/dc/ac converter. The main elements of this energy conversion system are described. A dedicated control strategy is proposed and verified. All of the results presented here originate from an actual 150-kW SHP that contains two innovative hydro-sets working in parallel on the same river.