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我国南方水力资源丰富,开发以中小水电为主的地方电力,提供廉价和自有能源,对于振兴当地经济具有特殊的作用;对少数民族地区和山区,更是脱贫致富奔小康的捷径。水是再生资源,时空分布不均的特性决定了有丰、枯水期。多数水电站调节性能差甚至无调节,一些小水电站枯季流量小,干旱时难以发电。同时本身缺乏完整的供电网架。因此,建立地方电网,提高和改善中、小水电的供电质量,成为地方电力提高经济效益和急待解决的课题。出路有三条:(1) 上游建调节性能好的龙头水库;(2) 向大电网买电调剂;(3)
The abundant hydropower resources in the south of our country, the development of local electricity mainly consisting of small and medium-sized hydropower, and the provision of cheap and self-owned energy have a special role in rejuvenating the local economy. In the areas of ethnic minorities and in mountainous areas, it is also a shortcut to poverty alleviation and prosperity. Water is a renewable resource, uneven distribution of time and space determines the abundance, dry season. Most of the hydropower stations have poor regulation performance or even no regulation. Some small hydropower stations have low flow in the dry season and are difficult to generate electricity in drought. At the same time lack of a complete power grid itself. Therefore, the establishment of local power grids to improve and improve the power supply quality of small and medium-sized hydropower has become a topic that local electric power can enhance economic efficiency and urgently need to be solved. There are three ways out: (1) to build a leading reservoir with good performance; (2) to buy power distribution to the large power grid; (3)