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Day-ahead optimal scheduling method and system for electric power system

A technology for optimizing dispatching and power systems, applied in system integration technology, information technology support systems, photovoltaic power generation, etc., can solve problems such as power regulation and resource allocation that are difficult to meet, and improve overall operation efficiency, improve regulation capabilities, and enrich The effect of the modulator

Pending Publication Date: 2021-11-16
STATE GRID BEIJING ELECTRIC POWER +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

To solve the current power system scheduling scheme in the prior art, it is difficult to meet the problems of power regulation and resource allocation

Method used

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  • Day-ahead optimal scheduling method and system for electric power system
  • Day-ahead optimal scheduling method and system for electric power system
  • Day-ahead optimal scheduling method and system for electric power system

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Embodiment approach

[0074] An embodiment of the present invention provides a day-ahead optimization scheduling method for a power system, and the specific steps are as follows:

[0075] S1. Establish the following optimization model:

[0076] A. Objective function: the total operating cost of the power system in the day-ahead dispatching stage includes regional electricity purchase and sale costs gas purchase cost Participate in the operation and maintenance costs of dispatching energy supply equipment before the day And participating in the flexible load demand response subsidy fee of the day-ahead scheduling Specifically:

[0077]

[0078] In formula (10): The cost of electricity purchase and sale in the region, For gas purchase cost, In order to participate in the day-ahead scheduling of power supply equipment operation and maintenance costs, To subsidize the demand response for flexible loads participating in day-ahead scheduling, is the tie line power at time t, and i...

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Abstract

The invention discloses a day-ahead optimal scheduling method and system for an electric power system, and the method comprises the steps: building an optimal scheduling model, wherein the target parameter of the optimal scheduling model is the lowest total operation cost of the day-ahead scheduling stage of the electric power system; solving the optimal scheduling model to obtain power requirements of M regional aggregation flexible loads at any moment t when the total operation cost of the day-ahead scheduling stage of the power system is lowest; and performing day-ahead stage power dispatching according to the power requirements of the M regional aggregation flexible loads at any moment t. In the optimized dispatching process of the power system, the flexible load is controlled to participate in dispatching operation of a power grid like a generator set, the superiority and flexibility of the flexible load are fully exerted, the utilization rate of electric energy is better improved, and optimized configuration of energy resources is achieved.

Description

technical field [0001] The invention belongs to the technical field of electric power dispatch optimization, and in particular relates to a method and system for day-ahead optimal dispatch of electric power systems. Background technique [0002] Power system operation scheduling decision-making refers to an optimization scheme that meets given constraints with the goal of minimizing operating costs (such as investment costs, transmission loss costs, operation and maintenance costs, etc.), that is, power system scheduling plans. [0003] With the development of the new energy industry, a large number of uncertain power generation resources are connected to the power system on a large scale, and the conventional power system operation scheduling decision-making is difficult to meet the requirements for renewable energy consumption under the new situation, making the power system peak regulation problem increasingly serious. It is highlighted that the current power system dispa...

Claims

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Application Information

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IPC IPC(8): H02J3/00H02J3/28H02J3/46G06Q10/04G06Q10/06G06Q50/06
CPCH02J3/008H02J3/28H02J3/466G06Q10/04G06Q10/06312G06Q50/06H02J2300/24H02J2300/28H02J2300/40H02J2203/20Y02E10/56Y02E40/70Y04S10/50Y04S50/16
Inventor 王林董云飞邹晴李超然韩昊郭倍宁董晓宇都帅
Owner STATE GRID BEIJING ELECTRIC POWER