A point-to-network high-voltage AC-DC back-to-back simulation system and method

Abstract

The invention provides a point-to-net high-voltage AC / DC back-to-back simulation system and method. The system comprises a point-to-net module, a back-to-back module and an AC module, wherein the point-to-net module comprises a heavy-duty generator and a first converter transformer, the AC module comprises an AC generation, transmission and distribution unit and a second converter transformer, and the back-to-back module comprises the first converter transformer, the second converter transformer, a first converter unit and a second converter unit; the heavy-duty generator is electrically connected with the first converter transformer, the first converter transformer is electrically connected with the first converter unit, the first converter unit is electrically connected with the second converter unit, the second converter unit is electrically connected with the second converter transformer, and the second converter transformer is electrically connected with the AC generation, transmission and distribution unit.

Description

technical field [0001] The invention relates to the field of power supply, in particular to a point-to-network high-voltage AC-DC back-to-back simulation system and method. Background technique [0002] In North China, there are a large number of large-capacity units directly connected to the power grid for long distances, that is, the point-to-network power supply method. In the traditional point-to-network power supply method, the simulation analysis of the stability of the unit uses the electromechanical transient simulation method. With the development of DC technology, many DC transmission projects and large-capacity power electronic devices have been put into operation in the power grid, and the power supply mode of point-to-network connection of large-capacity units to the DC converter station has begun to appear, which in turn brings high-voltage DC and point-to-network A series of issues that affect each other between crews. The traditional DC transmission system o...

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to provide a point-to-network high-voltage AC-DC back-to-back simulation system and method to solve the problem that point-to-network high-voltage AC-DC back-to-back simulation cannot be effectively simulated in the prior art

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