Modeling method specific to third generation pressurized water reactor nuclear power generating unit

Abstract

The invention discloses a modeling method for a third generation pressurized water reactor nuclear power generating unit. The modeling method comprises the following steps of: 1, decomposing a nuclear power generating unit system into a plurality of subsystem models; 2, establishing the subsystem models in the step 1 according to heat engineering and energy transfer and conversion rules; 3, combining the subsystem models obtained in the step 2 into a nuclear power generating unit full system model, and connecting the nuclear power generating unit full system model with a power system model toobtain a combined model of a nuclear power generating unit and the power system; and 4, establishing a customized model of the third generation pressurized water reactor nuclear power generating uniton the basis of the combined model of the nuclear power generating unit and the power system, and simulating the performance of the nuclear power generating unit and machine-grid interaction according to the customized model. The method effectively solves combined emulation of the nuclear power generating unit and a power unit, can be applied to machine-grid coordination analysis of a nuclear power plant and a power grid, and has high practicability.

Description

technical field [0001] The invention relates to the technical field of modeling of nuclear power units and power systems, in particular to a modeling method for third-generation pressurized water reactor nuclear power units. Background technique [0002] At present, my country's nuclear power plants are in a period of large-scale construction and accelerated development, and have become the country with the largest scale of nuclear power plants under construction in the world. According to the latest development trends and requirements, my country's nuclear power installed capacity is expected to reach 70 million kW by 2020, and the proportion of nuclear power installed capacity is close to 5%. In the next 10 years, at least 30 nuclear power units will be connected to the grid for operation in China. [0003] However, both nuclear safety and grid security have significant political, economic and social implications. Once a nuclear accident or a power grid accident occurs, i...

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Problems solved by technology

[0007] The third-generation nuclear power unit AP1000 is widely used in the nuclear power plants under construction and proposed in my country. The Shandong Haiyang and Zhejiang Sanmen nuclear power plants adopting the third-generation nuclear power technology will be completed soon, but there is no third-generation AP1000 nuclear power unit model at home and abroad.

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