A method and system for evaluating planning scheme of primary and secondary systems of power grid

A planning scheme and sub-system technology, applied in data processing applications, instruments, calculations, etc., to achieve the effect of promoting orderly development, improving coordination, and improving investment efficiency

Active Publication Date: 2022-08-05
NARI TECH CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a method and system for evaluating the primary and secondary system planning scheme of the power grid, which solves the problems disclosed in the background technology

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  • A method and system for evaluating planning scheme of primary and secondary systems of power grid
  • A method and system for evaluating planning scheme of primary and secondary systems of power grid
  • A method and system for evaluating planning scheme of primary and secondary systems of power grid

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Embodiment Construction

[0033] The following combined with the attachment is further described by the present invention. The following examples are only used to explain the technical solutions of the present invention more clearly, and cannot limit the protection scope of the present invention based on this.

[0034] like figure 1 Show, a system planning method assessment method of a power grid, including the following steps:

[0035] Step 1: Get the planning section of the 1st system grid and the second control system of the power grid; the planning section includes the DC rated conveying capacity, the DC collection channel, the DC trend evacuation surface, and the DC near zone exchange section N-2 failure after the N-2 failure of the N-2 failure. The security planning strategy, single DC and the same frequency emergency control planning strategy after the same DC failure.

[0036] Step 2, calculate the evaluation indicators that affect the DC bearing capacity under different planning alternatives.

[0...

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Abstract

The invention discloses a method for evaluating a planning scheme of a primary and secondary system of a power grid, which includes obtaining planning alternative schemes of a grid of a primary system and a secondary control system of a power grid; calculating the evaluation indexes affecting the DC bearing capacity under different planning alternative schemes; Evaluation indicators, using multi-objective fuzzy decision-making method to evaluate different planning alternatives. At the same time, the corresponding system is disclosed. The invention calculates the evaluation index affecting the DC carrying capacity, uses the evaluation index to evaluate different planning alternatives, realizes the comprehensive decision of the primary and secondary planning schemes for the DC carrying capacity of the power grid, and effectively improves the coordination of the primary and secondary system planning of the power grid. The rationality has promoted the orderly development of DC construction and improved the investment efficiency of the power grid.

Description

Technical field [0001] The invention involves the evaluation method and system of the first or two system planning schemes of a grid, which belongs to the field of power systems and its automation technology. Background technique [0002] In order to solve the structural problem of East and West energy resources and imbalance of electricity load, improve energy resources to optimize the configuration capabilities nationwide, and the advantages of high -voltage DC long -distance large -capacity transmission have been fully exerted. The development plan of the power grid, but the number of DC in the major power grids is increasing, and the coupling of the communication, DC and new energy systems is closer, which exacerbates the frequency, voltage, voltage, etc. of the power grid after the communication failure, etc. The problem of stability is increasingly becoming a key factor restricting the DC ability of the grid. [0003] At present, the power grid planning only conducts the fe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q10/06G06Q50/06
CPCG06Q10/06393G06Q50/06
Inventor 常海军霍超刘福锁柯贤波张钢牛拴保王超孙仲卿李兆伟黄慧李威袁虎玲薛峰赖业宁黄畅想张红丽郄朝晖张倩
Owner NARI TECH CO LTD
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