Medium-and-small sized hydroelectric generating set intelligent control system

The utility model relates to a medium-and-small sized hydroelectric generating set intelligent control system. The system is characterized in that the system comprises a PLC module, a field suppression module, a speed regulating module, a silicon controlled rectifier bridge, a vacuum circuit breaker, an exciting transformer, an automatic quasi-synchronizing module and a generator. According to the utility model, the PLC module is taken as the core, the field suppression module, the speed regulating module, the silicon controlled rectifier bridge, the vacuum circuit breaker, the exciting transformer, the automatic quasi-synchronizing module and the generator are organically integrated together, multiple functions, such as generator excitation, speed regulation, automatic quasi-synchronization, grid connection, grid disconnection, starting, stopping, protection, etc., can be realized, the process is simplified, the automation level is improved, and the PLC module is used to perform automatic recording while performing control, operators can query the history through a touch screen module, so the retrieval and analysis can be facilitated, and the failure troubleshooting process is easy.