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Objectification power grid topology analysis method for generating black-start scheme

A power grid topology and analysis method technology, applied in the field of power transmission and distribution, can solve the problems of complex program implementation, weak system, and poor effectiveness, and achieve the effect of good effectiveness, strong system, and high efficiency

Inactive Publication Date: 2014-11-19
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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Problems solved by technology

The traditional power system topology analysis method regards the entire system as a whole, uniformly numbers all devices in the system, and then performs topology analysis. Although this method is simple and intuitive, it is inefficient and effective when analyzing large-scale systems. poor sex
Later, the method of hierarchical topology analysis appeared, which has high efficiency in analyzing large-scale systems, but the method is not systematic and the program implementation is complicated

Method used

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  • Objectification power grid topology analysis method for generating black-start scheme
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Embodiment Construction

[0040] see figure 1 , the object-oriented topology analysis method proposed by the present invention comprises the following steps:

[0041] Step 1: Create a factory station class. The plant class includes data members such as various devices, endpoints, storage structures for connecting nodes, and intra-station adjacency matrix, as well as member functions such as first initialization, second initialization, formation of adjacency matrix, topology search, and interaction with the overall topology. The storage of the adjacency matrix can be realized by using a dynamic two-dimensional array;

[0042] Step 2: Initialize each factory station object for the first time according to the factory station class established in step 1. When initializing for the first time, obtain the number of devices, endpoints, and connection nodes according to the system data, allocate memory for the storage structure of devices, endpoints, and connection nodes, and dynamically determine the size of...

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Abstract

The invention discloses an objectification power grid topology analysis method for generating a black-start scheme. The method is used for improving the performance of a black-start decision supporting system. According to the technical scheme, each factory station in the system is adopted as an object in the method, global topology analysis is carried out with the factory station objects as basic units, then each factory station object is adopted as a small system, local topology analysis is carried out in the factory station objects, and then the topology results of two levels are integrated. Each factory station in the system is adopted as one object, the topology process of the power system is clearly divided into the two levels, namely, global topology and local topology, and the method is high in efficiency, good in effectiveness, high in systematicness, simple in program implementation, capable of generating a recovery path in the back-start process conveniently, and suitable for the topology analysis of the large-scale power system.

Description

technical field [0001] The invention relates to a method capable of quickly and accurately analyzing the topology of a grid, belonging to the technical field of power transmission and distribution. Background technique [0002] With the cross-regional interconnection of the power system, the scale of the power grid is getting larger and larger, and the mutual influence between the subsystems is becoming more and more intense. When a local system fails, it may cause a large area due to incorrect actions of protection and automatic devices. Power outage accidents, and even the collapse of the entire power system, brought huge losses to the national economy. As the size of the system increases, so does the likelihood of widespread blackouts. Therefore, it is of great significance to study the recovery after power system accidents, that is, "black start" and related issues, and the black start decision support technology is also increasingly valued by scholars. Power grid topo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50G06Q50/06
CPCY02E60/00
Inventor 梁海平董金哲李少岩顾雪平
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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