半导体自励恒压同步发电机组在农村小型水电站中用得很多.同一电站的机组并列运行,采取在发电机励磁绕组上加均压线的办法还是有效的,但与电网并列就难以实现。为了使恒压间步发电机可靠地并网运行方法虽多,但是,有的操作和接线较麻烦;有的运行还不够稳定;所以我们没有采用。 Semiconductor self-excited constant voltage synchronous generator sets are used much in rural small-scale hydropower stations.It is effective to adopt the method of adding voltage-equalizing lines to the generator excitation windings in parallel operation of the same power station, but it is difficult to achieve parallelism with the grid. In order to make sure that the step-by-step step-by-step generator is connected to the grid in a reliable way, there are many ways of operation and wiring; some of them are not stable enough; therefore, we do not adopt it.