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Receiving-end grid optimal layering and districting scheme obtaining method

A receiving-end power grid, layered partitioning technology, applied in the direction of instruments, data processing applications, forecasting, etc., can solve the problems that cannot fully guarantee the security and stability of the system after partitioning

Inactive Publication Date: 2015-06-03
SHANGHAI MUNICIPAL ELECTRIC POWER CO +1
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Problems solved by technology

At the same time, the above-mentioned existing partitioning methods can only ensure that the nodes in the partitioned area have high sensitivity to voltage control, but cannot fully guarantee the security and stability of the partitioned system. It is necessary to study a multi-index comprehensive evaluation method to improve Hierarchical zoning system of the receiving end power grid

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  • Receiving-end grid optimal layering and districting scheme obtaining method

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Embodiment Construction

[0058] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. This embodiment is carried out on the premise of the technical solution of the present invention, and detailed implementation and specific operation process are given, but the protection scope of the present invention is not limited to the following embodiments.

[0059] This embodiment provides a method for obtaining an optimal hierarchical partition scheme of a receiving power grid, the method including the following steps:

[0060] 1) Obtain the initial partition scheme group of the receiving power grid based on the Normal matrix spectrum bisection method, and the initial partition scheme group contains m partition schemes;

[0061] 2) Establishing an evaluation model for hierarchical partitioning schemes, which includes n evaluation indicators;

[0062] 3) Calculate the evaluation index value corresponding to each partition scheme in the ini...

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Abstract

The invention relates to a receiving-end grid optimal layering and districting scheme obtaining method which comprises the following steps: 1) obtaining a receiving-end grid initial districting scheme group on the basis of a Normal matrix spectrum bisection method; 2) establishing a layering and districting scheme evaluation model; 3) computing the evaluation index value corresponding to each districting scheme in the initial districting scheme group to form comparative sequences of the districting scheme, and carrying out non-dimension disposal on the comparative sequences; 4) obtaining the GRG coefficients zeta0i(k) of the comparative sequences and the grey relational weight wbetai of each evaluation index; 5) obtaining the AHP weight walphai of each evaluation index by adopting an analytic hierarchy process; 6) computing the overall grey relational degree rk of the districting scheme according to the grey relational weight and the AHP weight obtained in the step 4) and step 5); 7) taking the maximum districting scheme of the overall grey relational degree as the optimal districting scheme. Compared with the prior art, the receiving-end grid optimal layering and districting scheme obtaining method has the advantages of being simple in topology model and high in algorithm speed and reliability of results.

Description

technical field [0001] The invention relates to a power distribution network system, in particular to a method for obtaining an optimal layered partition scheme of a receiving-end power grid. Background technique [0002] Hierarchical and partitioned operation is an inevitable trend in the development of power grids. Research on the hierarchical and partitioned operation scheme of the receiving power grid can not only ensure the safe and stable operation of the power grid, but also create considerable technical, economic and social benefits. [0003] At present, there are few domestic researches on the theory and method of power grid layering and partitioning, and the theoretical methods related to power grid partitioning are mainly derived from a three-level voltage control model proposed by the French Electricity Company (EDF) in the 1970s, which has been used in many It is applied in the national power grid. Among them, reasonable division of voltage control areas is the...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/04G06Q50/06
Inventor 王紫雷许刚宋晓旭
Owner SHANGHAI MUNICIPAL ELECTRIC POWER CO
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