A simulation method and model of fast switching of power supply

Abstract

The invention discloses a simulation method and model of power supply fast switching. The method includes: a control logic system acquires the first analog parameter and the second analog parameter collected by the primary system, and the switch state parameter of the circuit breaker in the primary system; According to the pre-selected quick-cut start mode, combined with the switch state parameters or the first analog parameter, the first incoming line circuit breaker is tripped when it is judged that the first power supply fails; according to the pre-configured closing mode, combined with the first and second analog The quantity parameter judges whether the closing condition is met, and if so, executes the closing action. The present invention is based on analog quantity parameters and switch state parameters, and simulates all fault situations according to the pre-configured starting mode, switching mode and closing mode. The interaction among them provides a reliable and efficient research method, which can effectively improve the reliability of the parameter configuration of the fast cutting device.

Description

technical field [0001] The invention relates to the technical field of fast switching of power supplies, in particular to a simulation method and model of fast switching of power supplies. Background technique [0002] It is not uncommon for industrial enterprises to experience unplanned shutdowns of production equipment, large fluctuations in supply voltage, or short-term power outages (commonly known as "shocking power") due to failures or abnormalities in external power grids or internal power supply networks. At present, the main method for industrial enterprises to solve the reliability of power supply is to use dual-channel or multi-channel power supply for the primary system, supplemented by fast switching devices (quick switching) for the secondary system. The basic principle of fast switching is to close the bus tie circuit breaker quickly according to the change of the residual voltage of the motor bus, and make the impact on the motor and the system within the tol...

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Problems solved by technology

[0009] Aiming at the defects in the prior art, the present invention provides a simulation method and model of fast power switching to solve the problem that it is impossible to analyze the interaction between the fast switching device and the entire enterprise power grid, and it is difficult to configure the parameters of the fast switching device

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