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Voltage control method based on soft partitions in power system

A voltage control method and power system technology, applied in the direction of adaptive control, general control system, control/regulation system, etc., can solve problems such as difficult to change, difficult to guarantee control performance, difficult to track changes in grid structure and operation mode, etc. To achieve the effect of ensuring control performance and reducing investment

Inactive Publication Date: 2006-02-08
TSINGHUA UNIV
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Problems solved by technology

[0049] Due to the limitations of the existing CSVC method on control technology and system structure, even if the above-mentioned new technologies are adopted in each specific link of the existing CSVC method, it is still difficult to guarantee the control performance
For example, even if the online self-adaptive "soft" partitioning technique is applied in step 1 of the above CSVC method, since this step 1 is completed in an offline environment, it is still difficult to track changes in the grid structure and operation mode; in addition, according to the existing CSVC method, still requires the development of geographically distributed and independent regional CSVC systems for each control area, which makes it difficult to change the control area once established
Therefore, the existing CSVC method is difficult to guarantee the control performance for the power grid with rapid development and frequent changes in operation mode (such as: China's power grid)

Method used

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  • Voltage control method based on soft partitions in power system
  • Voltage control method based on soft partitions in power system
  • Voltage control method based on soft partitions in power system

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Embodiment Construction

[0072] The voltage control method based on soft partitioning in the power system proposed by the present invention is described in detail as follows in conjunction with the accompanying drawings and embodiments:

[0073] The voltage control method based on soft partition in the power system proposed by the present invention is as follows: image 3 shown, including the following steps:

[0074] 1) Real-time data collection of the power grid: obtain the required real-time data of the power grid from the power grid control center;

[0075] 2) Online zoning: Using the collected real-time data of the power grid, first judge whether re-zoning is needed according to the criteria (the specific method can be to judge whether the structure and operation mode of the power grid have changed through some known topology analysis methods, or to judge whether the distance Whether the implementation time of the sub-partition reaches the given value in advance), if the criterion condition is e...

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Abstract

The invention relates to a voltage control method for electric system basing on soft division. The method comprises: real time data gathering in electrical network; partition online; establishing CSVC mathematical model for control area; calculating the control quantity of each CSVC mathematical model; outputting the control quantity of each control area; returning to circulating for CSVC controlling when the CSVC control cycle time out.

Description

technical field [0001] The invention belongs to the technical field of automatic voltage control of electric power systems, in particular to a voltage control method based on soft partitions in electric power systems. Background technique [0002] The automatic voltage control (AVC, automatic voltage control) system is a computer-based global voltage automatic closed-loop control system for modern power systems. Safe, high-quality and economical system operation. From the control mode, the existing automatic voltage control system can be roughly divided into two types: the control mode based on "optimal power flow" and the control mode based on hierarchical partitioning. [0003] The basic method of the control mode based on hierarchical partitioning is to divide the voltage control into three levels: primary voltage control (PVC, Primary Voltage Control), secondary voltage control (SVC, Secondary Voltage Control) and tertiary voltage control (TVC, Tertiary Voltage Control...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/00H02J3/38G05B13/00G05B13/04
Inventor 孙宏斌张伯明吴文传郭庆来李钦
Owner TSINGHUA UNIV
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