Real-time simulation method, real-time simulation device and real-time simulation electronic equipment of hydraulic-turbine regulation system

Abstract

The invention discloses a real-time simulation method, a real-time simulation device and real-time simulation electronic equipment of a hydraulic-turbine regulation system. The method includes: obtaining basic parameters and basic constants of a hydropower station, carrying out variable definition, and setting basic relationship expressions through the basic parameters, the basic constants and variables; establishing a feature line method-based water hammer feature line mathematical-model of a hydraulic-turbine water diversion system of the hydropower station; establishing a basic feature linemethod system calculation principle block diagram; establishing a basic feature line method calculation principle block diagram-based improved linear model calculation principle block diagram in which a water head loss item is removed and head-to-flow feedback is introduced, writing a z-transfer function of the hydraulic-turbine water diversion system according to the improved linear model calculation principle block diagram, and obtaining an improved linear model; and establishing the improved line model for simulation.

Description

technical field [0001] The invention relates to the field of hydraulic turbine simulation, in particular to a real-time simulation method, device and electronic equipment of a hydraulic turbine regulation system based on the improved characteristic line method. Background technique [0002] The characteristic line method is currently the most commonly used method for solving the hydraulic transient process of the piping system of the turbine regulating system. Its advantages mainly include: the stability criterion can be established; the boundary conditions are easy to program; it can be applied to the hydraulic transient analysis of various pipelines . Therefore, it is the one with better precision among all discrete algorithms. The basic characteristic line method can show the properties of elastic water hammer, but the elastic water hammer decays slowly, the damping is small, and the convergence is poor, especially after the water flow is cut off. The real-time simulatio...

AI Technical Summary

Problems solved by technology

The basic characteristic line method can show the properties of elastic water hammer, but the elastic water hammer decays slowly, the damping is small, and the convergence is poor, especially after the water flow is cut off. The real-time simulation algorithm usually needs to run continuously, so the The convergence of simulation iterations under various working conditions has stricter requirements, otherwise the simulation results may diverge and be seriously distorted

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