Complex Distribution Network Simulation System

Abstract

The invention discloses an analog simulation system of a complex power distribution network containing multiple voltage grades and 8 modules, which integrates the analog simulation technologies of an integrated power grid power supply, a distributed power supply, an accident, a circuit, an AC and DC power distributor, a diverse load and other analog simulation technologies, aiming at the simulated test demand of an active power distribution net technology with the characteristics of interaction and intelligence. The analog simulation system comprises 5 modules such as a power grid simulator which reflects the primary and secondary parts of a power grid, a power supply simulator, a load simulator, a control simulator and a protective simulator, further comprises 3 additional modules such as an event / detection simulator beneficial for the simulation test, an interface module, and a synchronous simulator. The analog simulation system provided by the invention comprises an integrated simulation test of steady state, transient state and multistage power distribution network including new elements such as a distributed power supply, a diversified load, an intelligent equipment / system, an automatic / information system, an AC / DC hybrid grid, closed loop operation, etc.

Description

technical field [0001] The invention relates to a distribution network simulation system, in particular to a complex distribution network simulation system. Background technique [0002] In recent years, with the development of distributed power generation, demand-side response, electric vehicles and smart grids, the distribution network has become an active network including distributed power generation and diverse load access, with large scale, multiple points and wide areas, and complex structure. It is a complex system that combines discrete and continuous processes, transient processes and steady states, and power distribution technology is facing major changes. How to carry out effective technical research and testing according to the development trend of distribution network plays an important role in promoting the development of distribution network technology, and poses new challenges to distribution network simulation test technology. [0003] On the one hand, the...

AI Technical Summary

Problems solved by technology

This kind of simulation is similar to true-type simulation. The voltage level and simulated objects are basically fixed, and the flexibility is insufficient. It has certain applicability to distribution network simulation, but the influence of equipment configuration and parameter setting cannot meet the requirements of power distribution network. Network security protection, automation system, etc., cannot meet the needs of joint simulation of multi-voltage distribution network, and the scope of application and the functions that can be simulated are limited.

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