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A Method for Economic Operation Evaluation Considering the Uncertainty of Wind Power Connection

A technology with economic operation and uncertainty, applied in the direction of calculation, instrumentation, data processing applications, etc., can solve the problem of lack of consideration of the uncertainty of wind power access, and achieve the effect of reducing operating costs and improving capabilities

Inactive Publication Date: 2017-12-15
TIANJIN UNIV +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there is still a lack of economic operation evaluation methods that take into account the uncertainty of wind power integration.

Method used

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  • A Method for Economic Operation Evaluation Considering the Uncertainty of Wind Power Connection
  • A Method for Economic Operation Evaluation Considering the Uncertainty of Wind Power Connection
  • A Method for Economic Operation Evaluation Considering the Uncertainty of Wind Power Connection

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Embodiment Construction

[0047] The economic operation evaluation method considering the uncertainty of wind power access provided by the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0048] The economic operation evaluation method that takes into account the uncertainty of wind power access provided by the present invention directly participates in the real-time power balance plan of economic dispatch as a "virtual power generation resource" at the user side, and at the same time takes into account the large-scale wind farm Integrating various constraints such as unit adjustable capacity constraints, interruptible load maximum adjustable capacity constraints, and line flow constraints, a stochastic economic dispatch model is established that takes into account interruptible loads and wind power access. The purpose is to use As a dispatchable resource, the interruptible load can improve the safety and economy of power system ...

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Abstract

A method for evaluating economic operation considering wind power integration uncertainty includes the steps of firstly, establishing a random economic dispatch model; secondly, calculating the optimal economic dispatch scheme; thirdly, evaluating the wind power absorption capacity. The method has the advantages that the limitation that only the power generation side is taken into consideration in a traditional method and serves as a dispatch resource is broken, interruptible loads can serve as the interaction resource of the user side to be included in the economic dispatch plan, the access of a large-scale wind power plant is taken into consideration, the random economic dispatch model with the interruptible loads and the wind power integration is established, the comprehensive optimization dispatch method that combines the Monte Carlo analog simulation with the improved primal-dual inner point method is put forward, the system running cost is effectively reduced, the negative effects caused by wind power volatility to power grids can be balanced to a certain extent, and the improvement of the system wind power absorption capacity is facilitated.

Description

technical field [0001] The invention belongs to the technical field of smart grid analysis, optimal scheduling and renewable energy utilization, and in particular relates to an economic operation evaluation method considering the uncertainty of wind power access. Background technique [0002] The essence of the power system economic dispatch problem is to study the constrained optimization problem with the goal of economical optimization (usually the lowest power generation cost) under the premise of satisfying the system energy balance and operating limit constraints. It is an optimal power flow problem, by adjusting the value of some control variables in the system, on the basis of satisfying all constraints, to find the dispatching scheme with the best economic performance index from all feasible solutions. The existing optimal power flow algorithms can be divided into classical methods and intelligent methods. Among them, the classical methods mainly include gradient al...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q10/04G06Q50/06
CPCG06Q10/06312G06Q50/06
Inventor 魏炜马肖一曾沅宋平黄华炜包海龙李琰张占奎
Owner TIANJIN UNIV
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