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Control method of rapid dynamic reactive power compensation equipment based on control command coding

A technology for compensating equipment and control instructions, applied in reactive power compensation, AC network voltage adjustment, etc., can solve problems that cannot be directly used for control

Inactive Publication Date: 2015-12-16
STATE GRID CORP OF CHINA +3
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Problems solved by technology

But this target value cannot be directly used for control, which is different from the power plant secondary voltage control

Method used

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  • Control method of rapid dynamic reactive power compensation equipment based on control command coding

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Embodiment Construction

[0021] The control method for fast dynamic reactive power compensation equipment based on control instruction coding proposed by the present invention involves the implementation of the schematic diagram of the power grid structure as follows: figure 1 As shown, the method includes the following steps:

[0022] (1) When a control cycle (normally 5 minutes) of automatic voltage control (hereinafter referred to as AVC, Automatic Voltage Control) starts, the AVC master station of the regional power grid dispatching center performs the secondary voltage control calculation of the substation, and generates ( Including static reactive power compensator / static synchronous compensator (hereinafter referred to as SVC / SVG (Statcom) and other devices) reactive power regulation amount, and obtain the upper limit value V of the busbar voltage on the high-voltage side of the substation h and the lower limit V of the busbar voltage on the high-voltage side of the substation l ;

[0023](2)...

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Abstract

The invention relates to a control method of rapid dynamic reactive power compensation equipment based on control command coding, belonging to the technical field of automatic voltage control of power systems. The control method comprises the following steps that: firstly, the reactive power adjusting amount of the rapid dynamic reactive power compensation equipment of a transformer substation is obtained by calculation through a second-stage voltage control system of an AVC primary station; four reactive power adjustment command codes are generated according to an appointed coding manner; the AVC primary station sends an upper limit value of bus voltage at the high voltage side of the transformer substation, a lower limit value of the bus voltage at the high voltage side of the transformer substation and the reactive power adjustment command codes of the rapid dynamic reactive power compensation equipment as control commands to the rapid dynamic reactive power compensation equipment; after receiving the control commands, the rapid dynamic reactive power compensation equipment decodes the reactive power adjustment commands according to coding definition; and reactive power adjustment and control operations are carried out according to the bus voltage value at the high voltage side of the transformer substation. By means of the control method, commands of the rapid dynamic reactive power compensation equipment in automatic voltage control are coded, such that control of automatic reactive power voltage of the rapid dynamic reactive power compensation equipment is carried out.

Description

technical field [0001] The invention relates to a control method for fast dynamic reactive power compensation equipment based on control instruction coding, in particular to a method for realizing automatic reactive power and voltage control based on control instruction coding for fast dynamic reactive power compensation equipment, belonging to the technical field of automatic voltage control of power systems. Background technique [0002] Automatic Voltage Control (hereinafter referred to as AVC, Automatic Voltage Control) can use the real-time operation data of the power grid to scientifically decide the best reactive voltage adjustment plan from the perspective of the entire system, and automatically issue it to each sub-station device to ensure voltage safety and high quality. As a constraint, aiming at the economical operation of the system, a continuous closed-loop real-time optimal control of the voltage is carried out. It can effectively overcome the shortcomings of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/16
CPCY02E40/30
Inventor 李春来汤磊张节潭王鹏杨立滨李小江徐有蕊张桂红鲜文军周文芸杨军李正曦
Owner STATE GRID CORP OF CHINA
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