Automatic voltage control system

A control system and automatic voltage technology, applied in the field of electric power engineering, can solve the problems of large reactive power demand of the power grid and insufficient power supply, and achieve the effect of solving the problem of voltage control

Inactive Publication Date: 2018-11-23
SHANGHAI MUNICIPAL ELECTRIC POWER CO +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] With the construction of the East China Power Grid, the scale of DC access to the East China Power Grid is getting larger and larger, resulting in insufficient power supply start-up and a large demand for reactive power in the power grid.

Method used

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Embodiment Construction

[0053] The present invention will be further elaborated below by describing a preferred specific embodiment in detail in conjunction with the accompanying drawings.

[0054] as attached figure 1 As shown, the present invention provides an automatic voltage control system, which consists of several substation systems and a master station system. The substation system is the front part of the reactive power and voltage optimization control system of the power grid. It is installed in the control room of each power plant. By optimizing the reactive power output of each unit, the voltage of the high-voltage side node of the power plant is adjusted in real time; each substation is equipped with a node , and a host computer is set at the node; the host computer is connected to the corresponding lower computer of each generator, and the lower computer is connected with the electric signal of the generator or the excitation system of the power plant, and after reading the data, send i...

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Abstract

The invention relates to an automatic voltage control system. The system mainly comprises a substation system and a main station system. The substation system is a front part of a power grid reactivevoltage optimization control system, and is installed in a power plant control room; the reactive power output of each unit is controlled through optimization, and the voltage of the high-voltage sidenode of the power plant is adjusted in real time; each substation is provided with a node, an upper computer is arranged on the node; and a lower computer corresponding to each generator is hung on the upper computer. The main station system is a provincial electric power scheduling communication center and is connected with the upper computer of the substation through an RTU channel and used forreading the real-time information uploaded by the sub-station system and sending a control instruction to the sub-station.

Description

technical field [0001] The invention relates to the technical field of electric power engineering, in particular to an automatic voltage control system. Background technique [0002] The main control objects of the automatic voltage control system (AVC) include reactive equipment such as low-voltage capacitors and reactors in power plant generator sets and substations, and voltage regulating equipment such as main transformer taps. Generator automatic voltage and reactive power control device is an automatic voltage-reactive power optimization control terminal on the power plant side and an intelligent node of the automatic voltage AVC control system of the whole network. It has intelligent decision-making functions such as reactive power distribution and local control. However, the generator AVC device There is no specific verification method for performance evaluation. [0003] With the construction of the East China Power Grid, the scale of DC access to the East China Po...

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Application Information

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IPC IPC(8): H02J3/16H02J3/50
CPCH02J3/16H02J3/50Y02E40/30
Inventor 李福兴刘琦杜洋杨靖宁梁伟朋孙沛顾承昱李驹
Owner SHANGHAI MUNICIPAL ELECTRIC POWER CO
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