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Method and system for dynamic optimization control of electric power system

A technology of dynamic optimization and control method, applied in the direction of electrical components, circuit devices, AC network circuits, etc., can solve the problems of voltage fluctuation, large power loss, unreasonable load curve segmentation results, etc., to achieve small over-limit and power loss small effect

Inactive Publication Date: 2011-08-31
CHINA AGRI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0018] The technical problem to be solved by the present invention is: how to solve the unreasonable segmented results of the load curve in the prior art, resulting in large voltage fluctuations and power loss

Method used

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  • Method and system for dynamic optimization control of electric power system
  • Method and system for dynamic optimization control of electric power system
  • Method and system for dynamic optimization control of electric power system

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Embodiment Construction

[0046] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0047] In the power system, because the load is changing every moment, but the control equipment cannot be operated too frequently, the method of the present invention is mainly used for the segmentation of the predicted load curve, and the segmentation of the predicted load curve is used for Determine the optimal control scheme for the next period of time. Such as figure 1 Shown is a flow chart of a power system dynamic optimization control method according to an embodiment of the present invention, including the following steps:

[0048] S1: Segment the load curve and determine the optimal control scheme for the next period, that is, the variance sum of the load in all...

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Abstract

The invention discloses a method and a system for the dynamic optimization control of an electric power system, which relates to the technical field of the planning and the control of the electric power system. The method comprises the following steps of: (1) sectionalizing a load curve, minimizing the sum of the load variances in all the periods of time, maximizing the differences between the load averages of all the adjacent periods of time; and (2) supplying power to a load according to the sectionalization result in step 1. The invention ensures that the sum of the load variances in all the periods of time is minimized and the differences between the load averages of all the adjacent periods of time are maximized when the load curve is sectionalized so as to solve the problem of larger voltage fluctuation and electric energy loss caused by unreasonable optimization in the prior art.

Description

technical field [0001] The invention relates to the technical field of power system planning and control, in particular to a dynamic optimization control method and system for a power system. Background technique [0002] In power system operation scheduling, dynamic optimization analysis is generally required. In the analysis process, in order to approximate and simplify the load state, it is often necessary to divide the load curve into several time periods reasonably. For example, in the dynamic reactive power optimization analysis, after the length or starting point of each time period is determined, the load in this time period is approximately considered to be constant, and the corresponding reactive power control scheme can be optimized and calculated accordingly. [0003] At present, the commonly used optimal segmentation method uses the minimum variance sum of each segment as the objective function, and the control variable is the segment point or the length of each...

Claims

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Application Information

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IPC IPC(8): H02J3/00H02J3/12
Inventor 耿光飞
Owner CHINA AGRI UNIV
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