Electromagnetic transient simulation method used for power distribution network comprising distributed power sources.

Abstract

The invention discloses an electromagnetic transient simulation method used for a power distribution network comprising distributed power sources. The method includes the steps that the power distribution network and the distributed power sources are decoupled to obtain respective equivalent models, and equivalent parameters of the equivalent models are determined; in combination with transient state time constants of the distributed power sources and the power distribution network, simulation calculation is performed on the equivalent models of the distributed power sources and the power distribution network according to respective step lengths; physical interfaces are used for achieving interface data interaction of the distributed power sources and the power distribution network, and a simulation synchronous verification is performed after the data interaction is finished. The method can simulate normal running states and various failures of the power distribution network comprising the distributed power sources, closed-loop simulation and testing of a system are achieved, electromagnetic transient real-time simulation of the power distribution network comprising the distributed power sources is effectively achieved, and requirements for researching, analyzing, simulation experiments and simulation training performed on a new power distribution network technology and equipment are met.

Description

technical field [0001] The invention relates to a distribution network simulation calculation method, in particular to an electromagnetic transient real-time simulation method for a distribution network with distributed power sources, and belongs to the technical field of power system simulation. Background technique [0002] Distribution network plays a very important role in smart grid. The access of various forms of distributed power sources, energy storage devices, micro-grids, and electric vehicle charging and discharging facilities, especially the flexible interaction with users, needs to be reflected by the distribution network. At the same time, the distribution network also has the characteristics of large network scale, complex structure, and asymmetric structure and parameters. Especially when a large number of distributed power sources are connected to the grid, the operating characteristics of the distribution network will be greatly changed, and its dynamic pro...

AI Technical Summary

Problems solved by technology

[0005] However, no in-depth research has been carried out on the real-time simulation technology of regional distribution network that adapts to the development needs of regional distribution network, has compatibility and scalability, meets the needs of multiple distributed energy sources and the application of new intelligent electrical equipment.

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