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Interface-based simulation modeling method for standby diesel generator unit of nuclear power plant

Pending Publication Date: 2018-10-16
SHANGHAI NUCLEAR ENG RES & DESIGN INST CO LTD +1
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Problems solved by technology

[0003] At present, the commonly used method for the loading simulation of standby diesel generator sets in nuclear power plants is to model the diesel engine based on the MATLAB platform. Many assumptions and simplifications are made for the working process of the diesel engine, and a large number of engineering experience data are relied on. It is difficult to accurately simulate various complex program belts. Changes of diesel engine characteristic parameters during loading

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  • Interface-based simulation modeling method for standby diesel generator unit of nuclear power plant
  • Interface-based simulation modeling method for standby diesel generator unit of nuclear power plant
  • Interface-based simulation modeling method for standby diesel generator unit of nuclear power plant

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Embodiment Construction

[0019] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0020] The interface-based simulation modeling method for nuclear power plant standby diesel generator sets includes the following steps:

[0021] Establish the simulation model of GT-power: through the modular method, input the actual parameters of the diesel engine, establish the simulation model of the cylinder, crankshaft, intake and exhaust pipes, turbocharger, and fuel injector of the diesel engine in sequence, and connect them to Get the whole machine model of the diesel engine, such as figure 1 shown;

[0022] Establish the simulation model of the speed control system and load of the diesel generator: according to the working principle of the diesel generator speed control system, establish the Simulink simulation model o...

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Abstract

The invention provides an interface-based simulation modeling method for a standby diesel generator unit of a nuclear power plant. The method is characterized by comprising the following steps of building a GT-power simulation model of a diesel engine; building a Simulink simulation model of a speed regulating system and a load of a diesel engine generator; building a GT-power and Simulink joint simulation model; and establishing a graphic user interface (GUI), thereby finishing a joint simulation function through the GUI. By combining different advantages of two types of software, a loading process of the standby diesel generator unit of the nuclear power plant can be simulated; and by analyzing whether performance parameters such as a transient frequency and the like of the generator unit obtained by simulation meet design requirements or not, whether the design of a corresponding load program is reasonable or not is assessed.

Description

technical field [0001] The invention relates to a set design of a nuclear power plant backup diesel generator set, in particular to an interface-based simulation modeling method for a nuclear power plant backup diesel generator set. Background technique [0002] As the core part of the backup AC power supply in the nuclear power plant, the standby diesel generator plays an irreplaceable and important role in the defense-in-depth function of the third-generation nuclear power plant. When the normal and priority AC power is lost and the bus switching fails, the standby diesel generator provides AC power to the selected defense-in-depth load (permanent non-safety load), and loads all the required loads in batches within the specified time . Due to the large amount of equipment carried by the standby diesel generator set, it is impossible to carry out the real program load test in the design and manufacture stage, and it is difficult to detect and evaluate its transient charact...

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Application Information

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IPC IPC(8): G06F17/50G06F9/451G06Q50/06
CPCG06F9/451G06Q50/06G06F30/20
Inventor 王玥王银燕孙志宏陆佩芳胡炜亮王贺春徐荣苏成曹震许浩琪赵乐挺朱立群卢峰
Owner SHANGHAI NUCLEAR ENG RES & DESIGN INST CO LTD
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