Performance study of Micro-hydropower system in Nepal
Performance study of Micro-hydropower system in Nepal
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尼泊尔微水电系统性能研究
DOI：
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
R. Maskey
中科院分区：
文献类型：
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作者：
S. Khadka;R. Maskey
本研究的重点是性能研究的微型水电站（MHP），高达100千瓦，系统的整体效率，即水-线效率。MHP在尼泊尔偏远农村地区的电气化方面发挥了重要作用。由于国产涡轮机在安装前缺乏试验设备，在设计MHP时一般采用50%的总效率，而不考虑电厂的规模。现场试验在每个单独的厂房中进行，采用附加倾卸荷载（ADL）方法。在这种方法中，用户负载和电子负载控制器（ELC）断开，ADL的端子连接到发电机。在测试期间，ADL以1 kW的间隔接通，并且通过保持50 Hz的频率通过闸阀控制排放。沿着记录相应的放电与网头、电流和电压。然后，流量与设备的总效率的关系给出了在给定流量下设备的最大水-网效率。
This study focuses on the performance study of the Micro-Hydropower Plant (MHP), upto 100 kW, system in terms of the overall efficiency, that is, water- to- wire efficiency. MHP has been playing a significant role for electrification of the remote rural areas of the Nepal. Generally, 50 % overall efficiency is adopted while designing the MHP without consideration of the sizes of the plants due to the lack of testing facilities of such domestically made turbine before installation. The field test was conducted, in each individual powerhouse, using additional dump load (ADL) method. In this method, the consumer load and Electronic Load Controller (ELC) were disconnected and terminals of the ADL were connected to generator. During the testing ADL was switched on 1 kW interval and the discharge was controlled through the gate valve by maintaining frequency of 50 Hz. The corresponding discharge was recorded along with net head, current and voltage. Then the flow versus overall efficiency of the plant gives the maximum water to wire efficiency of the plant at a given discharge.