New Control Strategy and Implementation of the Bypass Voltage Regulator for the Class 1E DC and the UPS System in Nuclear Power Plant
The class 1E DC and UPS system(IDS)is the safety power source system for nuclear power plant,which is an important guarantee for the safety of nuclear power plant.The bypass voltage regulator is widely used in UPS systems with its advantages of high efficiency,energy conservation and fast regulation.Due to the inevitable existence of the inrush current of the compensation transformer during the process of position switching of the bypass voltage regulator,this paper proposes an improved compensation transformers slow the start-up switching scheme,which is controlled by the DSP software to reduce the adverse effects caused by inrush current and verified through actual experiments.In the future,it can provide reliable uninterrupted power supply for class 1E loads and some important non-class 1E loads of nuclear power plant to ensure the stable operation of nuclear power plant equipment.
Nuclear power plantBypass voltage regulatorCompensation transformerSlow start-up
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