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A distribution network power supply quality control device and its automatic voltage regulation method

A technology for regulating device and power supply quality, applied in substation/distribution device shell, circuit device, AC network voltage adjustment, etc.

Active Publication Date: 2022-04-22
HUZHOU ELECTRIC POWER SUPPLY CO OF STATE GRID ZHEJIANG ELECTRIC POWER CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention mainly solves the problem of poor reliability of distribution network power supply in the existing technology; it provides a distribution network power supply quality control device and an automatic voltage regulation method thereof

Method used

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  • A distribution network power supply quality control device and its automatic voltage regulation method
  • A distribution network power supply quality control device and its automatic voltage regulation method
  • A distribution network power supply quality control device and its automatic voltage regulation method

Examples

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Effect test

Embodiment

[0045] Embodiment: a distribution network power supply quality control device, such as figure 1 As shown, it includes monitoring device 1, intelligent dual-way AC contactor 2, wind and solar hybrid system 3, on-load tap-changing transformer 4, on-load tap-changing controller 5, low-voltage busbar 6, 4 sets of smart capacitors 7, main residual Current-operated circuit breaker 8 and residual current-operated circuit breaker 9.

[0046]The down conductor of the 10kV line is connected to the high-voltage terminal of the on-load voltage regulating transformer 4, and the output low-voltage terminal is connected to the low-voltage busbar 6 of the power distribution cabinet; the working power supply of the on-load voltage regulating controller 5 is connected to the output load of the wind-solar hybrid The communication between the voltage controller 5 and the on-load tap-changing transformer 4 is connected through an RS485 port, and the communication between the on-load tap-changing c...

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Abstract

The invention discloses a distribution network power supply quality control device and an automatic voltage regulation method thereof, including a monitoring device, which is distributed and arranged on the distribution network line, and performs voltage regulation control according to received sampling data; an intelligent two-way AC contactor, According to the control command transmitted by the monitoring device, the line is switched and connected with the monitoring device; the smart capacitor is used for step-up power supply during the voltage regulation process, and is connected with the monitoring device; the residual current operated circuit breaker includes the main residual current operated circuit breaker and The residual current action circuit breaker is used for the regulation of the power on and off of the line, and is connected with the monitoring device and the intelligent double-circuit AC contactor; the invention makes up for the shortage of low-voltage distribution network monitoring equipment by setting multiple monitoring devices on the distribution network line To solve the problem, through the intelligent two-way AC contactor, the line is automatically switched after the equipment fails to achieve the purpose of automatic voltage regulation. Through the automatic voltage regulation method, three-level voltage regulation is performed to improve the reliability of the power supply of the distribution network.

Description

technical field [0001] The invention relates to the technical field of distribution network power supply control, in particular to a distribution network power supply quality control device and an automatic voltage regulation method thereof. Background technique [0002] The temperature in summer is high, but it is located in a remote mountainous area, generally 6-7 ℃ lower than that of a big city. It is a summer resort, surrounded by mountains and forests, and the air is fresh. It is a good place to relieve mental stress, so it is very popular among urban people. In recent years, the emergence of a new kind of tourism and leisure homestay and farmhouse has produced good economic benefits for promoting rural tourism, adjusting industrial structure, building regional economy, and accelerating the process of agricultural marketization. Since every summer is the season with the highest electricity load on the power supply network, the equipment operates at full load in an extre...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/12H02J3/16H02J3/18H02H3/34H02H3/04H02J13/00H01H47/02H01H9/20H02B1/28H02B1/30
CPCH02J3/12H02J3/16H02J3/1828H02H3/34H02H3/04H02J13/00016H02J13/00022H01H47/02H01H47/001H01H9/20H02B1/28H02B1/30H02J2213/10Y02E40/30Y02E60/00Y02B90/20Y04S40/124Y04S40/126
Inventor 吴宇红莫金龙来骏徐国华颜文俊郑军纪涛丁文军孙先山
Owner HUZHOU ELECTRIC POWER SUPPLY CO OF STATE GRID ZHEJIANG ELECTRIC POWER CO LTD
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