Generating method of universality cost space in security-constrained dispatch

A security-constrained, general-purpose technology, applied in the field of generalized cost space generation, can solve problems such as limiting the adaptability of security-constrained scheduling and increasing costs, and achieve the effects of improving convergence, increasing computing speed, and increasing space for congestion management

Inactive Publication Date: 2010-12-15
STATE GRID FUJIAN ELECTRIC POWER CO LTD +1
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  • Abstract
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AI Technical Summary

Problems solved by technology

However, this method limits the adaptability of security-constrained scheduling to various modes such as power market, energy-saving scheduling, and "three public" scheduling, and re-develops software in different modes, which increases the cost of development, training, maintenance, and application.

Method used

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  • Generating method of universality cost space in security-constrained dispatch
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  • Generating method of universality cost space in security-constrained dispatch

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Embodiment Construction

[0105] Best practice:

[0106] Refer to attached figure 1 : Flowchart of main data for day-ahead generation scheduling planning. Universal cost space construction is the technical solution described in the present invention. In the figure, the working functions of each module are as follows:

[0107] Power plant information reporting is to report the planned power generation curves for refinery plants, LNG power plants, and combined heat and power plants.

[0108] The water transfer automation system provides the power generation planning curves of various hydropower plants and wind power plants for the construction of cost space.

[0109] The medium and long-term risk management system is to provide planned electricity and planned load rate for thermal power plants in the construction of general cost space.

[0110] Manual intervention is used to set fixed output units and make fixed curves for them.

[0111] The maintenance management system provides the output limit of...

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Abstract

The invention relates to a generating method of a universality cost space when an electric grid dispatching mechanism draws up generation plans meeting various security constraints, and provides a 'sequence cost space' construction method required by an optimization algorithm, including information of a generation dispatching loading sequence, a constraint adjustment sequence, and the like by summarizing production rules of dispatch and combining an electric power market with an economics theory of energy-saving dispatch. Cost management is cooperated in the process of solving security-constrained economic dispatch, such that the optimization algorithm can universally meet requirements on various generating modes of just, fair and open dispatch, energy-saving dispatch, cost dispatch, electric power market, and the like, and a new solving way is provided for realizing generation resource optimum distribution and large electric grid security constraint, reducing loss of the electric grid and further improving electric transmission and transformation resource. The invention provides a time-saving, labor-saving and universal cost space generation method without needing of carrying out complex mold construction and solution according to the particular case in the security-constrained dispatch.

Description

technical field [0001] The invention relates to a generation method of a universal cost space in the process of compiling a power generation plan satisfying various safety constraints by a power grid dispatching organization. Background technique [0002] Since the mid-to-late 1980s, with the deepening of power investment diversification, in order to ensure the legitimate economic interests of all investment entities, the compilation of power generation plans has been based on the principle of "three public" scheduling. The goal of "three public" scheduling is to ensure the safe operation of the power grid and at the same time make the utilization hours of similar units in various planning cycles basically the same. This practice has promoted the rapid development of the power industry for a certain period of time, but it has also led to the situation that efficient and environmentally friendly large thermal power units cannot fully exert their power generation capacity, whi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/46
Inventor 陈志丁强崔晖黄文英周京阳邓勇程鑫邓兆云潘毅李晓磊韩彬姚宇臻
Owner STATE GRID FUJIAN ELECTRIC POWER CO LTD
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