Complex Distribution Network Simulation System

A technology of simulation and power grid simulation, applied in simulators, general control systems, control/regulation systems, etc., can solve the problem of insufficient flexibility, limited scope of application, limited functions that can be simulated, and cannot meet the needs of multi-voltage level distribution network integration. Simulation needs and other issues, to achieve the effect of comprehensive simulation functions and reliable simulation results

CN104330979BActive Publication Date: 2017-04-05STATE GRID CORP OF CHINA +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2017-04-05

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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.
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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...

Examples

Embodiment Construction

[0075] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0076] 1. Complex distribution network;

[0077] The complex distribution network in the present invention refers to a traditional passive distribution network including a single voltage level or two or more voltage levels, an active distribution network, a closed-loop operation distribution network, an AC-DC hybrid distribution network, etc. A complex distribution network established by the distribution network type.

[0078] 2. Complex distribution network simulation system;

[0079] Based on the above-mentioned complex distr...