Complex distribution network multi-time-scale digital-analog hybrid simulation system and simulation method therefor

Abstract

The present invention provides a complex distribution network multi-time-scale digital-analog hybrid simulation system and a simulation method therefor, and aims to solve problems of multi-time-scale modeling and simulation of the existing complex distribution network and simulation precision and efficiency of the complex distribution network. The present invention proposes a complex distribution multi-time-scale digital-analog hybrid simulation scheme, and designs a digital-analog hybrid interface apparatus and a coordination mechanism, so that multi-time-scale real-time simulation of complex distribution network devices (such as a power electronic device containing a complex topology structure and a novel control structure and a novel control policy) and multi-time-scale simulation analysis that contains a distributed power source, such as a fan, a photovoltaic device and a combustion turbine, and an electric vehicle connected / disconnected to a network and that has an interactive effect on the distribution network. The method provided by the present invention is capable of promoting the development of the cutting-edge new technology of the new-generation distribution network, improving the level of distribution network operation control and analysis, and providing more powerful, longer-term and deeper support for power grid production, running and management from the angles of distribution network planning, designing, operation regulating and the like.

Description

technical field [0001] The invention relates to a simulation system and a simulation method thereof, in particular to a complex distribution network multi-time scale digital-analog hybrid simulation system and a simulation method thereof. Background technique [0002] In recent years, with the increase in power supply demand and the development of distribution network technology, the scale of distribution network has continued to expand and its structure has become increasingly complex. Its characteristics of large scale, many nodes, miscellaneous equipment, and multiple operation modes have become increasingly prominent. At the same time, renewable energy grid-connected technology and new power electronics technology are developing rapidly; on the side of the distribution network, a large number of distributed power sources, micro-grids, large-capacity chargers, energy storage systems, etc. are connected, and the operation mode of the distribution network is increasingly Co...

AI Technical Summary

Problems solved by technology

However, using this digital-analog hybrid simulation system for transient simulation, there is a problem of asynchrony between the digital side and the analog side

In addition, the existing technology is object-oriented to the transmission network, which cannot meet the requirements of multi-segmentation, multi-connection, multi-operation status, high R / X ratio, large-scale, Simulation requirements for complex distribution networks with complex structures, multiple points and wide areas

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