Study on the speed control principle and performance test for nuclear power diesel generator

For AP1000 with passive technology, when the service priority power and standby power loss at the same time, whether the emergency power supply of diesel generator can be started up, and operated with load and unload, performance test and validation for the electro-hydraulic speed control system are needed. Therefore, based on the commissioning practice of nuclear power project, the structure and principle of (electronic and mechanical) speed control system are analyzed. Combining with the performance index of speed control system, the adjustment and test method are summarized. (authors)