水电站水电站是利用高处水的位能来发电的,发电能力决定于河流的流量和水头。为了有效地利用水力,要选择流量大、水头高的地方建站。一般河流上游是流量小而水头高,下游则往往是流量大而水头低。按取水头的方式,水电站分为引水式、坝后式和坝后引水混合式。引水式水电站是将河流上游水流用拦河坝拦 Hydropower Hydropower station is the use of high water potential to generate electricity, power generation capacity depends on the flow and head of the river. In order to effectively use the hydraulic power, it is necessary to choose a site with a large flow rate and a high water head to build a station. The general upper stream is small flow and high head, the downstream flow is often large and low head. According to the way of taking the head, the hydropower station is divided into the diversion type, the dam type and the dam diversion type. Diversion-type hydropower station is the river upstream dam with barricades