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AVC (Automatic Voltage Control) joint-debugging control method based on var compensation technology

A control method and dynamic technology, applied in the direction of reactive power compensation, AC network voltage adjustment, etc., can solve the problem that the local reactive power compensation and voltage smoothing adjustment cannot be truly achieved, the requirements for continuous smoothing voltage and reactive power adjustment cannot be met, and the To local balance and other issues, to improve stability and reliability of power supply, improve utilization and service life, and reduce the range of voltage fluctuations

Inactive Publication Date: 2012-04-25
DONGFANG ELECTRONICS
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AI Technical Summary

Problems solved by technology

Existing AVC systems generally use on-load transformers with adjustable gears and capacitors / reactors in the power grid as voltage and reactive compensation means. Since the capacitors / reactors currently equipped are of fixed capacity, the AVC system has no effect on the voltage. The adjustment of power is discrete, which cannot meet the continuous and smooth adjustment requirements for voltage and reactive power in the actual power grid, and cannot truly achieve reactive power local compensation and voltage smooth adjustment.
Its main disadvantage is that the voltage fluctuates greatly, which may affect the voltage quality; the reactive power cannot be truly balanced locally, and can only be compensated discretely, resulting in large power grid losses

Method used

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Embodiment Construction

[0022] Below in conjunction with embodiment further illustrate the present invention.

[0023] The steps of the AVC joint debugging system based on the dynamic reactive power compensation technology of the present invention are as follows:

[0024] 1. Add quantity measurement in the AVC joint commissioning system: four quantities of each SVC equipment, including three digital quantities, the running status of the dynamic reactive power compensation device (SVC) at the station end, the joint commissioning status of the SVC, the master station AVC Unlocked state for this SVC. An analog quantity, representing the real-time value of the absorbed reactive power of the current SVC.

[0025] 2. Establish a dynamic reactive power compensation device (SVC) parameter model in the AVC joint commissioning system, and each SVC needs to be configured with two fixed values. Setting value one is one-third of the minimum capacitor capacity in the station where the equipment is located. The ...

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PUM

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Abstract

The invention discloses an AVC (Automatic Voltage Control) joint-debugging control method based on the var compensation technology, which comprises the following steps of: installing and configuring a static var compensator (SVC) in a power grid; obtaining the real-time information of the SVC by a control system for the AVC; according to an SVC parameter model and constant value information in the AVC joint-debugging system, carrying out voltage reactive power optimization joint-debugging strategy calculation by combining with the voltage reactive power real-time information; and regulating the SVC and other SVCs with the fixed volume in the power grid. According to the AVC joint-debugging control method, the SVC in the station and the original static reactive power compensation equipment can be controlled in a coordination mode.

Description

technical field [0001] The invention relates to an AVC joint debugging control method based on dynamic reactive power compensation technology, and belongs to the technical field of power grid reactive power voltage comprehensive control optimization. The AVC refers to: power system automatic voltage control (AUTOMATIC VOLTAGE CONTROL). Background technique [0002] With the rapid growth of the power system, the scale of the power grid has doubled, and the pressure and labor intensity faced by the front-line personnel of the power grid, including dispatchers, are also increasing. In this background, the AVC system as an automatic control system has received great attention because it can greatly relieve and reduce the pressure and labor intensity of the dispatcher. In recent years, the AVC system has been popularized rapidly. The county level generally adopts the first-level voltage control system, the region and large counties mainly adopt the second-level voltage control s...

Claims

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Application Information

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IPC IPC(8): H02J3/16
CPCY02E40/34Y02E40/30
Inventor 李绥荣徐艳王传起刘仲尧岳增辉戴宏伟
Owner DONGFANG ELECTRONICS
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