Modularization modeling for real-time simulation of hydropower plants

A modularization method has been proposed here for the full scope real-time simulation of a large-scale hydropower plant. In this method, the full scope dynamic simulation model can be decomposed into several subsystems that can be calculated independently in every time step, and each kind of subsystem model is developed to be a standard module. Using object-oriented modeling method for the simulation of hydropower plant protection systems, a general relaying module is developed to model a versatile protective relay, and a specific protective relay can be modeled through initialization of the general relaying module with different specific parameters and coordination settings. By doing these, the simulation time is reduced considerably, and the full scope simulation model of hydropower plant is convenient to develop, modify and maintain.