Transient offline simulation system for high-voltage direct-current valve cooling system

Abstract

The invention discloses a transient offline simulation system for a high-voltage direct-current valve cooling system. The system comprises a simulation equipment management and control module, an offline transient simulation module, a data signal input module, a fault setting module and a simulation protection module, wherein the simulation equipment management and control module builds equipmentelements of the valve cooling system in advance, and can adjust the states of the equipment elements according to the inputted parameters of the equipment elements, so as to enable a built simulationmodel to be consistent with an actual project; the offline transient simulation module is used for offline building and operating a simulation model; the data signal input module is used for inputtingthe operation signal of the actual valve cooling project and the quantity required to be simulated into the offline transient simulation module to obtain an operation simulation model; the fault setting module is used for setting various faults of different nodes in the technological process of the valve cooling system in the operation simulation model; and the simulation protection module is used for comparing the operation parameters of the operation simulation model with the set protection constant value setting parameters corresponding to the operation parameters.

Description

technical field [0001] The invention relates to a simulation system, in particular to a transient off-line simulation system of a high-voltage DC valve cooling system. Background technique [0002] The safe and stable operation of the converter valve water cooling system (hereinafter referred to as the valve cooling system) is the necessary prerequisite and solid foundation for the safe and stable operation of the converter valve and even the entire HVDC transmission project. At present, the protection setting values ​​of domestic valve cooling systems are all empirical values ​​provided by converter valve manufacturers, lacking theoretical basis, and there is no calculation and approval method for setting value setting. This extensive setting method of protection setting results in valve cooling There is no cooperative relationship between various protections in the system, and system failures occur frequently. Contents of the invention [0003] The purpose of the presen...

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