A method and system for economical dispatch of electric power system

A technology of economic dispatching and power system, applied in the field of power system, can solve problems such as low precision and difficulty in solving power system economic dispatching

Active Publication Date: 2019-01-11
保定市兆微软件科技有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

Centralized scheduling will make it more difficult to solve the economic scheduling of the power system. Using the optimization algorithm in the existing technology for economic scheduling, the accuracy of the results of economic scheduling is low, and it is not suitable for large-scale power systems

Method used

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  • A method and system for economical dispatch of electric power system
  • A method and system for economical dispatch of electric power system
  • A method and system for economical dispatch of electric power system

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Embodiment Construction

[0090] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0091] The purpose of the present invention is to provide a power system economic dispatch method and system capable of improving the accuracy of electric power system economic dispatch.

[0092] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0093] Such as figure 1...

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Abstract

A method and system for economical dispatch of electric power system are disclosed. The dispatching method comprises the following steps: establishing an economic dispatching model; according to the characteristics and partitioning strategy of each unit, the power system is clustered into one coarse particle, and the plurality of units are divided into a plurality of fine particles. Modifying theoutput powers of the plurality of fine particles according to the economic dispatching model to obtain the modified fine particle output powers; according to the economic dispatching model, the outputof each fine particle is calculated, and the output is optimized iteratively for many times to obtain the lowest power generation cost. The power system economic dispatching method of the invention can obtain the lowest generation cost and improve the accuracy of the unit output dispatching result.

Description

technical field [0001] The invention relates to the field of electric power systems, in particular to a method and system for economic dispatching of electric power systems. Background technique [0002] The economic dispatch of the power system is to optimize the output of the generator set and to minimize the power generation cost of the power system. Scheduling according to the equal micro-increase rate method and the coordination equation is an important tool to realize the economical operation of the power system, a scientific method in the operation link, and a dispatching principle generally adopted by countries all over the world. At present, the problems in actual production also need to be taken into consideration in the economic dispatch, otherwise the accuracy of the economic dispatch solution will be significantly affected, such as the valve point effect of the unit, the line loss in the transmission network, the forbidden interval, and the climbing constraint. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/46
CPCH02J3/46H02J2203/20
Inventor 李学平李安燚
Owner 保定市兆微软件科技有限公司
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