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TWACS-based rural power grid automatic meter reading system

A technology for automatic meter reading and rural power grids, applied in electrical signal transmission systems, signal transmission systems, instruments, etc., to solve the problems of poor accuracy and real-time performance of manual meter look-up, different meters, and large labor consumption.

Inactive Publication Date: 2016-01-20
STATE GRID CHONGQING ELECTRIC POWER CO ELECTRIC POWER RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the rural power grid checks the meter once a month, which requires a lot of manpower, and the location and specification of the meter installation are also different. It may be necessary to carry a ladder to check the meter, and the accuracy and real-time performance of the manual check meter is not good, so the rural power grid It is imperative to adopt automatic meter reading system

Method used

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  • TWACS-based rural power grid automatic meter reading system
  • TWACS-based rural power grid automatic meter reading system
  • TWACS-based rural power grid automatic meter reading system

Examples

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Embodiment 1

[0036] As shown in the figure, a TWACS-based automatic meter reading system for rural power grids provided by this embodiment includes a master station control unit, a transmission channel unit and a monitoring terminal unit;

[0037] The master station control unit is installed in the substation to complete the functions of data storage and communication system control;

[0038] The transmission channel unit transmits inbound and outbound signals through power lines in the grid;

[0039] The monitoring terminal unit is installed on the low-voltage side of the terminal distribution transformer, and is used to collect various parameters of electrical equipment and industrial production parameters, and then modulate and send current signals according to the communication protocol, and is responsible for receiving, detecting and demodulating outbound signals , analyze the command sent by the master station.

[0040] The master station control unit constitutes the concentrator of...

Embodiment 2

[0057] This embodiment provides a TWACS-based automatic meter reading system for rural power grids. The two-way power frequency communication system adopted is a new communication method based on the power distribution network. The system voltage of 50HZ is used as the carrier, and the transmission will not be affected. Effect of transformer configuration and capacity bandwidth. Strong anti-interference and anti-noise ability, high reliability.

[0058] The master station control unit provided in this embodiment is a substation concentrator, which is mainly responsible for sending control commands to terminal equipment and receiving uplink signals from terminal equipment.

[0059] The transmission channel unit provided in this embodiment is the transmission medium of inbound and outbound signals, mainly composed of power lines in the power grid. The transmission channel fully utilizes the existing power line distribution network, no additional channels are required, and there...

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Abstract

The invention discloses a TWACS-based rural power grid automatic meter reading system. The TWACS-based rural power grid automatic meter reading system comprises a master station control unit, a transmission channel unit and a monitoring terminal unit. The master station control unit is installed on a transformer substation. The transmission channel unit transmits station entrance and exit signals through an electric power circuit in a power grid. The monitoring terminal unit is installed on the low-voltage side of a terminal distribution transformer and used for collecting various parameters of electric equipment and parameters of industrial production and then modulating and sending current signals according to a communication protocol, meanwhile is responsible for receiving and detecting demodulation station exit signals and analyzing commands sent by a master station. On the basis of the TWACS, the electric power circuit is utilized for data transmission, transmission can be performed by spanning the transformer, and the TWACS-based rural power grid automatic meter reading system has the advantages of being long in transmission distance, low in cost and the like and is quite suitable for implementing projects for collecting rural distribution grid electricity information.

Description

technical field [0001] The invention relates to the field of automatic meter reading for a power grid, in particular to an automatic meter reading system for a power grid. Background technique [0002] Due to the progress of urban and rural power grid reconstruction projects, the one-household-one-meter system has been further popularized, and a considerable number of rural users will be integrated into the smart grid. Problems that originally existed in urban power grids will also affect rural power grids. Moreover, unlike urban residential areas, the locations of rural residential users are relatively scattered, and the construction of residential buildings will not be planned uniformly, and the location distribution is scattered. Therefore, the automatic meter reading system designed for urban power grids is difficult to adapt to the current situation of rural power grids. However, the rural power grid meter reading system can be designed according to the experience of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08C19/00
Inventor 陈涛张晓勇向菲胡晓锐宫林张友强钟加勇高晋熊伟刘祖建姚树友黄飞陈曦魏甦余红欣魏燕何燕
Owner STATE GRID CHONGQING ELECTRIC POWER CO ELECTRIC POWER RES INST