A method for constructing a control system model of a pressurized water reactor for dynamic simulation of a power system

Abstract

The invention provides a method for constructing a power system dynamic simulation pressurized water reactor control system model. The method for constructing the power system dynamic simulation pressurized water reactor control system model comprises the steps that appropriate simplification and functional integration are conducted on an actual reactor control system, the reactor control system is decomposed into two sub systems according to functions, namely, a power control system and a temperature control system. The power control system and the temperature control system are used for stimulating that a nuclear power unit controls power to rise or reduce under a normal operating condition, simulating the nuclear power unit to adjust temperature and the power and maintaining stable operation under the situation that the power, voltage and frequency electric parameters disturb, and achieving electromechanical transient and medium and long term dynamic simulation of a large-scale power system including the pressurized water reactor nuclear power unit. By means of the method for constructing the power system dynamic simulation pressurized water reactor control system model, the problems that no accurate reactor control system model exists in an existing simulated program, and therefore dynamic characteristics of the nuclear power unit can not be actually reflected are solved, and a powerful tool for researching problems of the transition process inside the nuclear power unit, the mutual effect between a large-scale power grid and a high-capacity nuclear power unit, source network collaboration and the like is provided.

Description

technical field [0001] The invention relates to the field of power systems, in particular to a method for constructing a reactor control system model of a second-generation improved pressurized water reactor nuclear power unit in power system dynamic simulation. Background technique [0002] At present, nuclear power is in a period of large-scale construction and accelerated development. The second-generation improved 1-million-kilowatt pressurized water reactor nuclear power has become the main body of nuclear power units in operation. Due to the large capacity of a single nuclear power unit and high safety requirements, the connection of nuclear power to the power system will have a major impact on the system. How to ensure the safe and stable operation of both nuclear power units and the power system is an extremely important issue. [0003] Power system digital simulation is the basis for the safe and stable operation of ultra-large-scale power systems. In order to stu...

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Problems solved by technology

Therefore, the degree of fidelity of the model is limited, and it cannot accurately reflect the real dynamic characteristics of the actual nuclear power unit, and it does not yet have the conditions for popularization and application in the dynamic simulation of large-scale power grid power systems.

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