Low-voltage intelligent station area line voltage automatic adjusting method

A technology of intelligent radio and line voltage, applied in the direction of AC network voltage adjustment, circuit devices, electrical components, etc., can solve problems such as damage, decrease in illumination of lighting fixtures, increase in line loss, etc., and achieve obvious economic benefits

Pending Publication Date: 2021-08-24
STATE GRID FUJIAN ELECTRIC POWER RES INST +2
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  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

The low voltage problem seriously affects the user's experience of using electricity, resulting in shortened or even damaged service life of home appliances, decreased illumination of lighting fixtures, and increased line loss

Method used

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  • Low-voltage intelligent station area line voltage automatic adjusting method

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Embodiment Construction

[0021] The technical solution of the present invention will be specifically described below in conjunction with the accompanying drawings.

[0022] The invention provides an automatic adjustment method for line voltage in a low-voltage intelligent radio station area, which provides an isolation transformer, an intelligent gear controller, a gear adjustment switch, a first intelligent circuit breaker, a second intelligent circuit breaker, and an intelligent fusion terminal; the two ends of the input voltage are respectively It is connected with the two input terminals of the first intelligent circuit breaker, the first output terminal of the first intelligent circuit breaker is connected with the first input terminal of the isolation transformer through the gear adjustment switch, and the second output terminal of the first intelligent circuit breaker is connected with the isolation transformer The second input terminal is connected, and the two output terminals of the isolation...

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Abstract

The invention relates to a low-voltage intelligent station area line voltage automatic adjusting method. An isolation transformer, an intelligent gear controller, an intelligent circuit breaker, an intelligent fusion terminal and the like are included. Two phases of circuits in the low-voltage distribution transformer are connected in series through the isolation transformer and are used in a voltage reduction mode. The high-low voltage turn ratio of the isolation transformer is adjusted in a self-adaptive mode through the intelligent gear controller and the intelligent fusion terminal, intelligent adjustment of the electricity utilization voltage of a terminal user is achieved, and meanwhile real-time monitoring of the voltage of a transformer area line is achieved in combination with a new-generation power distribution cloud master station. The method solves the problem of low voltage ubiquitous to users at the tail end of the low-voltage distribution area, and has the advantages of no harmonic interference, high efficiency, strong loading capacity, economy and the like.

Description

technical field [0001] The invention belongs to the field of low-voltage intelligent power distribution, and in particular relates to a method for automatically adjusting line voltage in a low-voltage intelligent radio station area. Background technique [0002] The low-voltage distribution station area is a key link of the smart grid. It has long-term power quality problems, which seriously threaten the safety and reliable operation of users' electricity consumption. Among them, the voltage quality problem is particularly prominent in the low-voltage distribution station area. Due to the obvious increase of the power supply radius and load of the line, the end users of the line have long-term low voltage problems. Although the traditional method of adding new distribution points can solve the low voltage problem of users, it is not economical. The low voltage problem seriously affects the user's experience of using electricity, resulting in shortened or even damaged servi...

Claims

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Application Information

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IPC IPC(8): H02J3/12H02M5/12H02J13/00
CPCH02J3/12H02M5/12H02J13/00006H02J13/0004Y04S40/12Y04S40/126Y02B90/20
Inventor 陈伟铭王健朱淑娟钱健张振宇李衍川罗翔高源张延辉谢芸李旭伟杨德嵩刘坚
Owner STATE GRID FUJIAN ELECTRIC POWER RES INST
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