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长期以来,小水电发电机的励磁调节器几乎都是按照大机组的原则进行设计,基本上都采用比例式的恒压调节器。由于小水电的负荷中感应电动机所占的比重较大,电动机与发电机的单机容量可能相当,供电半径小,电网结构的可靠性较低,以及继电保护和自动装置较简陋等原因,往往使得这种调节器无法满足小水电的运行要求。当采用恒压调节器的小发电
For a long time, almost all of the small hydropower generator excitation regulator in accordance with the principles of large units designed to basically use proportional pressure regulator. Due to the large share of induction motors in the load of small hydropower generators, the stand-alone capacities of motors and generators may be quite small, the power supply radius is small, the reliability of the power grid structure is low, and the relay protection and automatic devices are relatively simple and so on, Making this regulator can not meet the operational requirements of small hydropower. When using a constant voltage regulator for small power generation