Patent ID: 7945011
Filing Date: 2011-05-17
Classification: F02C,F22B,G21D,Y02E

Abstract:
1. A steam dump control system for controlling a response of a nuclear reactor to a transient, comprising: at least one steam dump valve having a positioner operable to open said valve; a coolant sensor system for monitoring an average temperature of a coolant of the nuclear reactor and providing a temperature error signal when the average temperature of the coolant exceeds a reference temperature; a nuclear power plant power sensing system for monitoring power of the reactor and power of a turbine, and providing a power error signal when the power of the turbine is reduced and the power of the turbine changes relative to the power of the reactor at a rate that exceeds a preselected rate; and a control means having an input from the coolant sensor system and an input from the nuclear power plant power sensing system, for combining the temperature error signal and the power error signal to produce a valve control signal to control said valve positioner.