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Medium-term and long-term trading-operation plan-acquiring method considering wind-electricity acceptance

A technology for operating plans and acquisition methods, applied in computing, electrical components, circuit devices, etc., to solve problems such as mathematical models that are not considered

Active Publication Date: 2014-03-12
XI AN JIAOTONG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the power company has not yet considered the mathematical model of the medium and long-term transaction operation plan decision-making of wind power acceptance in the actual work

Method used

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  • Medium-term and long-term trading-operation plan-acquiring method considering wind-electricity acceptance
  • Medium-term and long-term trading-operation plan-acquiring method considering wind-electricity acceptance
  • Medium-term and long-term trading-operation plan-acquiring method considering wind-electricity acceptance

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Embodiment Construction

[0039] The present invention will be further described below in conjunction with accompanying drawing.

[0040] 1. Treatment of wind power in medium and long-term plans

[0041]On the premise that the safety constraints of the power grid can be satisfied, since wind power is a green and renewable energy source, it is a consensus to accept as much wind power as possible. Therefore, in the planning goal, there should be the goal of maximizing the amount of electricity consumed by wind power, as shown in the following formula Show:

[0042] MAx F 2 = Σ t = 1 t P w , t

[0043] In the formula:

[0044] P w,t ——the wind power received by the system in the tth time period;

[0045] f 2 ——The total amount of electricity received by wind power;

...

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Abstract

The invention discloses a medium-term and long-term trading-operation plan-acquiring method considering wind-electricity acceptance. By the method, a trading-operation integrated mathematical model is established by aiming at the realistic problem of needing large-scale wind-electricity acceptance by using medium-term and long-term trading plans and operation plans carried out by an electrical power company as the background, optimized target functions are the minimum total operating cost and the maximum wind-electricity elimination and acceptance of a system, and constraint conditions include the security constraint of electric-network operation and the physical constraint of generator operation. In order to reduce the solving dimensionality of the model, plan-scale compressing and mapping technologies are provided for compressing the time scales of the medium-term and long-term plans into typical-week time scales, the plan of a typical week is firstly obtained through optimized calculation, and the plan of the required medium-term and long-term time scales is formed through mapping relation, so that the electrical power company needing large-scale wind-electricity elimination and acceptance can be helped to make medium-term and long-term trading plans and operation plans, and therefore decision-making scientificity and validity are improved, the method is helpful to improving the accepting level of the wind electricity, and the production cost of electric energy is lowered.

Description

technical field [0001] The invention belongs to the medium and long-term decision-making and planning field of electric power companies, and in particular relates to the formulation of medium and long-term trading plans and operation plans considering wind power. Background technique [0002] In the day-ahead and real-time operation stages, due to limited adjustable resources, it is difficult to guarantee the full consumption of wind power in order to meet the backup requirements for safe operation of the power grid. In the medium and long-term operation planning stage, there are more means of optimal allocation, which can improve the acceptance level of clean energy through the coordination and optimization of various types of power generation resources and transmission resources in different time periods. On the other hand, for regions where the power supply is greater than the power demand, it is unrealistic to greatly increase the load demand in the region in the short t...

Claims

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Application Information

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IPC IPC(8): H02J3/00G06Q10/04G06Q50/06
CPCY02E40/70Y04S10/50
Inventor 别朝红胡国伟吕家君刘瑞峰薛必克
Owner XI AN JIAOTONG UNIV
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