Parallel digital and analog integrated simulation interface and physical simulation subsystem interface

Abstract

The invention provides a parallel digital and analog integrated simulation interface, which comprises a physical simulation subsystem interface based on parallel rectifiers and followers, a measurement unit, a digital simulation subsystem interface and a control system, wherein the parallel physical simulation subsystem interface is connected with a three-phase supply and a physical simulation subsystem; the measurement unit for measuring the voltage and current at the port of the physical simulation subsystem is connected with the digital simulation subsystem interface; the digital simulation subsystem interface is connected with a digital simulation subsystem; and the digital simulation subsystem is connected with the control system. The physical simulation subsystem is integrated with the digital simulation subsystem to form a real-time simulation model for the whole power system, so that the advantages of the physical simulation and digital simulation are fully exerted. The invention also provides a physical simulation subsystem interface.

Description

technical field [0001] The invention relates to the field of digital-analog signal simulation, in particular to a parallel digital-analog comprehensive simulation system interface and a physical simulation subsystem interface. Background technique [0002] With the large-scale development and utilization of renewable energy such as wind energy and solar energy, it is considered to connect distributed power generation and energy supply systems such as distributed power sources, energy storage devices, and energy conversion devices to the large power grid for grid-connected operation in the form of micro-grids. Mutual support with the large power grid, so as to give full play to the efficiency of the distributed generation energy supply system. Due to the introduction of the microgrid system, it is necessary to conduct in-depth research on the interaction mechanism between the microgrid and the large power grid, as well as the operating characteristics of the microgrid system'...

AI Technical Summary

Problems solved by technology

[0003] Physical simulation considers complex uncertain factors such as nonlinearity, so it can accurately simulate the dynamic process of the power system. It is very convenient for the research of phenomena with unclear mechanisms and new power equipment, but the modeling process is complicated and time-consuming. Large capital consumption, difficult parameter adjustment, limited portability and compatibility;

[0004] Digital simulation adopts modern computer technology and control technology, combines large-scale software and complex hardware, its modeling speed is fast, parameter adjustment is convenient, and it can simulate large systems, but it is not satisfactory for the simulation of new equipment and control strategies

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