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A voltage powerless control method for transformer station

A technology of voltage and reactive power control and substation, applied in substations, non-enclosed substations, reactive power compensation, etc., to achieve good automatic control effects, improve voltage qualification rate, and reduce equipment loss

Inactive Publication Date: 2008-01-16
北海银河生物产业投资股份有限公司
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AI Technical Summary

Problems solved by technology

[0003] The purpose of this invention is to provide a voltage and reactive power control method of a substation to overcome the shortcomings of the current control method using the fifteen-zone map

Method used

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  • A voltage powerless control method for transformer station
  • A voltage powerless control method for transformer station

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0018] The hardware system of the embodiment adopts the SuperE-F remote terminal equipment RTU of the control technology, and connects with the local control system through the optical fiber channel or the power carrier mode; the transformer adopts the Sg series 10-2000KVA, 10KV distribution transformer, the medium and low voltage side of the transformer adopts the YH-B53 series protection device of Guangxi Beihai Yinhe High-tech Industry Co., Ltd.; the capacitor bank uses the BCMJ0.415-18-3 series capacitor of Chongqing Shunlian Power Capacitor Co., Ltd.; the front-end machine Use HP7550 desktop computer, and install WINDOWS2000 operating system, SQL2000 database software and yh-5000 monitoring software.

[0019] The strategy control module of the embodiment determines the control method, the judgment of the transformer lockout, the judgment of the capacitor lockout, the judgment of the rope drop adjustment of the main transformer tap joint, and the judgment of capacitor switc...

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Abstract

The invention relates to a voltage reactive control approach of transformer substation, which comprises a RTU, an optical fiber channel or an electric carrier line connected with the RTU and a local control system, the transformer, a electronic computer connected with the local control system, a transformer and a capacitor. The invention is characterized in that, with the adoption of a eleven area diagram control approach, the collected real-time voltage and real-time reactive power are compared with a voltage limiting value and a reactive limiting value to confirm the position of the current system at the eleven area diagram. If a switched capacitor group or a transformer-conditioning shift is confirmed to meet the control requirement according to the control approach, then the switched capacitor group or transformer-conditioning shift will carry out the transformer shift conditioning or the switching-in and switching-out of the capacitor to control the transformer or the capacitor group. The invention can effectively lower the consumption of the prior equipment with good automatic control effect, promote the voltage qualified rate, eliminate the working intense of the personnel and is suitable for installation use in the transformer substation.

Description

technical field [0001] The invention belongs to electrical engineering technology, in particular to an improved design of a voltage and reactive power control method of a substation. Background technique [0002] The application number is 200610106560.0, and the name is a voltage and reactive power control system and its control method of a substation. It discloses a control method in the fifteenth area diagram, and divides the entire area into Fifteen parts (as shown in Figure 1). Although this control method solves the shortcomings of vibration and frequent device movements in the voltage and reactive power control of substations, it has many partitions, complex calculations, and affects control efficiency. The staff on duty is labor intensive, and it is not easy for users to master. Contents of the invention [0003] The purpose of the present invention is to provide a voltage and reactive power control method of a substation, so as to overcome the shortcomings of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/18G05F1/70H02B5/00
CPCY02E40/30
Inventor 雷体文庞清
Owner 北海银河生物产业投资股份有限公司
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