由于电力系统的运行要求电力平衡,抽水蓄能机组需要经常频繁起动,通常每周或双日起动一次。与常规电站相比,抽水蓄能电站的机组运行工况更加复杂、条件更加苛刻。它需要经常切换下述两种运行工况:即水轮机(发电)运行工况和水泵(抽水蓄能)运行工况。对于重型旋转机械设备来说,不断变换旋转方向的、可逆转的机组,制造难度相当大。 Due to the power balance required for the operation of the power system, pumped storage units need to be frequently started frequently, usually once a week or two days. Compared with conventional power plant, pumped storage power plant operating conditions more complex units, the conditions are more demanding. It requires frequent switching of two operating conditions: the turbine (power generation) operating conditions and pump (pumped storage) operating conditions. For heavy rotating machinery and equipment, the direction of rotation constantly changing, reversible unit, the manufacturing is quite difficult.