Digital and physical hybrid simulation method and system for power primary system

Abstract

The invention relates to a digital and physical hybrid simulation method and a digital and physical hybrid simulation system for a power primary system, and belongs to the technical field of power system real-time simulation. The method comprises the following steps of: performing electromagnetic transient real-time simulation calculation on a virtual power system by using a real-time digital simulation system; performing physical simulation on an actual power system by using a physical simulation system; setting a power interface system between the digital simulation system and the physical simulation system; amplifying and transmitting the voltage amount, obtained by digital simulation calculation, of the virtual power system to the actual power system through the power interface system; and performing the physical simulation on the actual power system by using the physical simulation system on the basis of a power-amplified voltage. By the method provided by the invention, the advantages of digital simulation and physical simulation are combined; actual new energy equipment can be simulated by the physical simulation; the power system of the working environment of the actual new energy equipment can be simulated by digital simulation; the shortages of respective methods of the digital simulation and physical simulation can be overcome; and new methods and ways are provided for researching and testing the performance characteristics of the new energy equipment and the dynamic process of the mutual influence between the new energy equipment and the power system.

Description

technical field [0001] The invention relates to a digital-physical hybrid simulation method for a power primary system and a system thereof, in particular to a digital-physical hybrid simulation method for a power primary system used for testing new energy equipment, and belongs to the technical field of real-time power system simulation. Background technique [0002] The power system is in the new situation of the new energy revolution, and the continuous emergence of various new energy equipment has put forward new requirements for the simulation test technology of the power system. The traditional power system simulation technology is mainly divided into physical simulation and digital simulation. Physical simulation is based on the similarity theory. The actual power system components are simulated with real physical components whose parameters are scaled down. It does not need to determine the mathematical model of the equipment, but the construction investment is large...

AI Technical Summary

Problems solved by technology

DDRTS is an electromagnetic transient real-time simulation system jointly developed by Shenzhen Intu Technology Development Co., Ltd., the Department of Electrical Engineering of Tsinghua University and Northeast Electric Power Dispatching Center. It has independent intellectual property rights and integrates digital simulation and real-time testing functions, but does not have physical simulation. Function

[0003] The patent application number CN201010145890.7 "A Hybrid Simulation Method of Electromagnetic Transient and Electromechanical Transient Based on Real-time Digital Simulator" provides a hybrid simulation method between two types of different power system digital simulations, but it cannot realize digital simulation and electromechanical transient simulation. Hybrid Applications of Physics Simulation

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