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Relaxative-constraint powerless equipment optimization method for power system

A technology of power system and optimization method, applied in the direction of reactive power compensation, reactive power adjustment/elimination/compensation, etc., to achieve the effects of ensuring stability, reducing network loss, and reasonable reactive power distribution

Active Publication Date: 2013-09-11
STATE GRID HEBEI ELECTRIC POWER RES INST +2
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  • Description
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  • Application Information

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Problems solved by technology

[0004] However, there may be deficiencies in the reactive power configuration scheme of the actual power grid. Through the comparison of the optimized line loss of the reactive power equipment and the theoretical line loss, the problems existing in the actual power grid operation can be found

Method used

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  • Relaxative-constraint powerless equipment optimization method for power system
  • Relaxative-constraint powerless equipment optimization method for power system
  • Relaxative-constraint powerless equipment optimization method for power system

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Embodiment Construction

[0046] This embodiment includes reactive device optimization for the actual power grid model and reactive device optimization for relaxing constraints. For the actual power grid model, based on 96 holographic sections per day, continuous optimization calculations are carried out. The holographic data section refers to that the storage of the section adopts a compression method, which is directly stored in the historical database in the form of binary data packets, the section occupies less space, and the information is complete and comprehensive, eliminating the burden of a large number of data file management; the holographic data section It contains the information of the complete EMS grid calculation model, including grid structure, parameters, real-time measurement data and state estimation data. For each holographic data section, the specific decision-making of reactive power equipment optimization calculation is given and simulated, forming a continuous simulation analys...

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Abstract

The invention relates to a relaxative-constraint powerless equipment optimization method for a power system, which comprises: a step of powerless equipment optimization of a practical power network model, namely, (1) reading a practical power network module from a power network module database of an energy management system (EMS), (2) selecting a powerless equipment range of a powerless optimization policy through a human-computer interface before powerless equipment optimization analysis is started, and (3) performing the powerless optimization policy on each data section; and a step of relaxative-constraint powerless equipment optimization, namely, (1) performing analogue computation on each section of the practical power network by adopting the current optimization policy, and analyzing the voltage control condition and the utilization rate of powerless equipment of each time, and (2) after the step (1) is accomplished, performing quantitative computation on a planned powerless source on the basis of determining the access point of the planned powerless source. The method can make the powerless distribution of the power system more reasonable and improves the safety and economy of the operation of the power system.

Description

technical field [0001] The invention relates to a reactive device optimization method for relaxing constraints in a power system. technical background [0002] With the continuous improvement of power system automation, reactive power optimization control will get more and more attention. Reasonable use of voltage and reactive power adjustment means can make the operation indicators of the power department and the user's overall equipment reach the best state. [0003] The flow of reactive power in the power grid has an important impact on the safety and economic operation of the power grid. To ensure the safe and economical operation of the power grid and reduce the loss of the power grid, it is always hoped that the reactive power of the power grid should not flow, which is the so-called ideal state. Or as little flow as possible, especially to avoid long-distance flow of reactive power through transmission lines. Realize the reactive power balance of the system. Maint...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/18
CPCY02E40/30
Inventor 王晓蔚范辉王鹏汤磊杨潇
Owner STATE GRID HEBEI ELECTRIC POWER RES INST
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