CN111030306A - Distribution transformer monitoring terminal and monitoring method - Google Patents
Distribution transformer monitoring terminal and monitoring method Download PDFInfo
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- CN111030306A CN111030306A CN201911401011.XA CN201911401011A CN111030306A CN 111030306 A CN111030306 A CN 111030306A CN 201911401011 A CN201911401011 A CN 201911401011A CN 111030306 A CN111030306 A CN 111030306A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
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Abstract
The invention relates to a distribution transformer monitoring terminal which comprises a main control module, a data processing module, an A/D converter, an acquisition module, a power supply module, a storage module, a protection module, a man-machine interaction module, a communication module and a monitoring background, wherein the main control module is respectively connected with the data processing module, the power supply module, the storage module, the protection module, the man-machine interaction module and the communication module, the communication module is connected to the monitoring background, the main control module transmits data to the monitoring background through the communication module and arranges and analyzes the data by the monitoring background, and the acquisition module is connected with the data processing module through the A/D converter and transmits acquired signals to the data processing module for operation processing. According to the distribution transformer monitoring terminal and the monitoring method, the data processing module and the main control module are combined, the structure is simple, functions of data acquisition, conversion, processing, storage, interaction, transmission and the like can be realized, the cost is saved, and the monitoring terminal and the monitoring method are simple, convenient, safe and reliable.
Description
Technical Field
The invention relates to the technical field of distribution transformers, in particular to a distribution transformer monitoring terminal and a monitoring method.
Background
Distribution transformers are electrical devices that distribute electrical energy directly to low voltage consumers, and their operational data are an important component of the overall distribution network infrastructure. In urban and rural power grids, along with the improvement of the living standard of residents, the proportion of the loads of the residents in the total load is larger and larger, and the requirements of the residents on power supply quality (such as voltage qualification rate, frequency and the like) and power supply reliability are higher and higher. The distribution transformer monitoring terminal is a bottom unit in a distribution automation system, is beneficial to management and control of a power demand side, and an electric power department can implement management and control on a remote site through the distribution transformer monitoring terminal, plays an important role on the power demand side, and is a channel for information communication between an electric power enterprise and a user. The distribution transformer monitoring terminal mainly comprises parts such as data acquisition, data processing, data communication and power supply.
The traditional transformer substation lacks a uniform and complete measurement monitoring control device, and an intelligent measurement and control device with a simple structure, safety and reliability is urgently needed. The existing transformer substation measurement and control device has the problems of complex structure, incomplete function and poor software and hardware adaptability.
Disclosure of Invention
The invention aims to solve the technical problems of complex structure, incomplete function and poor software and hardware adaptability of the distribution transformer in the prior art by providing a distribution transformer monitoring terminal and a monitoring method.
In order to solve the technical problems, the technical scheme of the invention is as follows: the utility model provides a distribution transformer monitor terminal, its innovation point lies in: the monitoring system comprises a main control module, a data processing module, an A/D converter, a collection module, a power supply module, a storage module, a protection module, a human-computer interaction module, a communication module and a monitoring background, wherein the main control module is respectively connected with the data processing module, the power supply module, the storage module, the protection module, the human-computer interaction module and the communication module, the power supply module provides power for a monitoring terminal of the distribution transformer, the data processing module carries out comprehensive operation processing on the collected data and transmits the data to the main control module, the main control module transmits the data transmitted by the digital processing module into the storage module for storage and into the human-computer interaction module for real-time interaction with a user, the communication module is connected to the monitoring background, the main control module transmits the data to the monitoring background through the communication module and arranges and analyzes the data, the acquisition module is connected with the data processing module through the A/D converter to transmit acquired signals to the data processing module for operation processing.
Furthermore, the acquisition module comprises a voltage sensor and a current sensor, the voltage sensor and the current sensor are respectively connected with the A/D converter, and the voltage sensor and the current sensor send current signals and voltage signals into the digital processing module for operation processing after A/D conversion.
Furthermore, the human-computer interaction module comprises a display screen and keys, and the display screen and the keys are respectively connected with the main control module to control interaction with a user or a worker.
Furthermore, the communication module comprises a GPRS and a modem, the main control module is respectively connected with the GPRS and the modem, and the GPRS and the modem are respectively connected with the monitoring background.
Further, the main control module is a single chip microcomputer, and the model of the single chip microcomputer is MSP430F 5438A.
In order to solve the technical problems, the technical scheme of the invention also provides a distribution transformer monitoring method, which has the innovation points that: the method specifically comprises the following steps:
(1) data acquisition: the method comprises the steps that voltage signals and current signals of a distribution transformer are collected through a voltage sensor and a current sensor respectively, the collected voltage signals and current signals are converted into data signals through an A/D converter respectively, and the voltage data and the current data are transmitted into a data processing module;
(2) data processing: the data processing module carries out comprehensive operation processing on the voltage data and the current data, and calculates to obtain collected power parameters of the distribution transformer, wherein the power parameters comprise three-phase voltage effective values, three-phase current effective values, active power, reactive power, power factors, frequency, impedance, various harmonics and phase angles;
(3) and (3) data control: the data processing module transmits the power parameters of the distribution transformer obtained by operation into the main control module, and the main control module controls and processes the power parameters:
A. storing the power parameters into a storage module for later data comparison and data calling;
B. displaying real-time data of the distribution transformer and judging and executing the use of the keys by a user or an operator through the obtained power parameters;
C. and transmitting the power parameters to a monitoring background through a modem or a GPRS (general packet radio service), and carrying out data arrangement and analysis on the distribution transformer by the monitoring background.
Further, the summation operation processing in the step (2) includes an FFT algorithm and a least square method.
Compared with the prior art, the invention has the beneficial effects that:
according to the distribution transformer monitoring terminal and the monitoring method, the data processing module and the main control module are combined, the structure is simple, functions of data acquisition, conversion, processing, storage, interaction, transmission and the like can be realized, the cost is saved, and the monitoring terminal and the monitoring method are simple, convenient, safe and reliable.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments are briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a system block diagram of a distribution transformer monitoring terminal according to the present invention.
Detailed Description
The technical solution of the present invention will be clearly and completely described by the following detailed description.
The invention provides a distribution transformer monitoring terminal, the system block diagram of which is shown in figure 1, and the distribution transformer monitoring terminal comprises a main control module, a data processing module, an A/D converter, an acquisition module, a power supply module, a storage module, a protection module, a man-machine interaction module, a communication module and a monitoring background, wherein the main control module is respectively connected with the data processing module, the power supply module, the storage module, the protection module, the man-machine interaction module and the communication module, the power supply module supplies power to the distribution transformer monitoring terminal, the data processing module carries out comprehensive operation processing on the acquired data and transmits the data to the main control module, the main control module transmits the data transmitted by the digital processing module into the storage module for storage and transmission into the man-machine interaction module for real-time interaction with a user, the communication module is connected to the monitoring background, the main control module transmits the data to the monitoring background through the, the acquisition module is connected with the data processing module through the A/D converter to transmit the acquired signals to the data processing module for operation processing. Preferably, the main control module is a single chip microcomputer, the model of the single chip microcomputer is MSP430F5438A, the single chip microcomputer is ultra-low in power consumption, and resources are saved.
The acquisition module of the distribution transformer monitoring terminal comprises a voltage sensor and a current sensor, wherein the voltage sensor and the current sensor are respectively connected with an A/D converter, and the voltage sensor and the current sensor perform A/D conversion on current signals and voltage signals and then send the current signals and the voltage signals to a digital processing module for operation processing.
The man-machine interaction module of the distribution transformer monitoring terminal comprises a display screen and a key, wherein the display screen and the key are respectively connected with a main control module to control interaction with a user or a worker.
The communication module of the distribution transformer monitoring terminal comprises a GPRS and a modem, wherein a main control module is respectively connected with the GPRS and the modem, the GPRS and the modem are respectively connected with a monitoring background, and the main control module can be communicated with the monitoring background through the GPRS communication or the modem according to actual needs.
The invention also provides a distribution transformer monitoring method, which has the innovation points that: the method specifically comprises the following steps:
(1) data acquisition: the method comprises the steps that voltage signals and current signals of a distribution transformer are collected through a voltage sensor and a current sensor respectively, the collected voltage signals and current signals are converted into data signals through an A/D converter respectively, and the voltage data and the current data are transmitted into a data processing module;
(2) data processing: the data processing module carries out comprehensive operation processing on the voltage data and the current data, and calculates to obtain collected power parameters of the distribution transformer, wherein the power parameters comprise three-phase voltage effective values, three-phase current effective values, active power, reactive power, power factors, frequency, impedance, various harmonics and phase angles; the summation operation processing comprises an FFT algorithm and a least square method.
(3) And (3) data control: the data processing module transmits the power parameters of the distribution transformer obtained by operation into the main control module, and the main control module controls and processes the power parameters:
A. storing the power parameters into a storage module for later data comparison and data calling;
B. displaying real-time data of the distribution transformer and judging and executing the use of the keys by a user or an operator through the obtained power parameters;
C. and transmitting the power parameters to a monitoring background through a modem or a GPRS (general packet radio service), and carrying out data arrangement and analysis on the distribution transformer by the monitoring background.
The above-mentioned embodiments are merely descriptions of the preferred embodiments of the present invention, and do not limit the concept and scope of the present invention, and various modifications and improvements made to the technical solutions of the present invention by those skilled in the art should fall into the protection scope of the present invention without departing from the design concept of the present invention, and the technical contents of the present invention as claimed are all described in the technical claims.
Claims (7)
1. The utility model provides a distribution transformer monitor terminal which characterized in that: the monitoring system comprises a main control module, a data processing module, an A/D converter, a collection module, a power supply module, a storage module, a protection module, a human-computer interaction module, a communication module and a monitoring background, wherein the main control module is respectively connected with the data processing module, the power supply module, the storage module, the protection module, the human-computer interaction module and the communication module, the power supply module provides power for a monitoring terminal of the distribution transformer, the data processing module carries out comprehensive operation processing on the collected data and transmits the data to the main control module, the main control module transmits the data transmitted by the digital processing module into the storage module for storage and into the human-computer interaction module for real-time interaction with a user, the communication module is connected to the monitoring background, the main control module transmits the data to the monitoring background through the communication module and arranges and analyzes the data, the acquisition module is connected with the data processing module through the A/D converter to transmit acquired signals to the data processing module for operation processing.
2. The distribution transformer monitoring terminal of claim 1, wherein: the acquisition module comprises a voltage sensor and a current sensor, the voltage sensor and the current sensor are respectively connected with an A/D converter, and the voltage sensor and the current sensor send current signals and voltage signals into the digital processing module for operation processing after A/D conversion.
3. The distribution transformer monitoring terminal of claim 1, wherein: the man-machine interaction module comprises a display screen and keys, and the display screen and the keys are respectively connected with the main control module to control interaction with a user or a worker.
4. The distribution transformer monitoring terminal of claim 1, wherein: the communication module comprises a GPRS and a modem, the main control module is respectively connected with the GPRS and the modem, and the GPRS and the modem are respectively connected with the monitoring background.
5. The distribution transformer monitoring terminal of claim 1, wherein: the main control module is a single chip microcomputer, and the model of the single chip microcomputer is MSP430F 5438A.
6. A distribution transformer monitoring method is characterized in that: the method specifically comprises the following steps:
(1) data acquisition: the method comprises the steps that voltage signals and current signals of a distribution transformer are collected through a voltage sensor and a current sensor respectively, the collected voltage signals and current signals are converted into data signals through an A/D converter respectively, and the voltage data and the current data are transmitted into a data processing module;
(2) data processing: the data processing module carries out comprehensive operation processing on the voltage data and the current data, and calculates to obtain collected power parameters of the distribution transformer, wherein the power parameters comprise three-phase voltage effective values, three-phase current effective values, active power, reactive power, power factors, frequency, impedance, various harmonics and phase angles;
(3) and (3) data control: the data processing module transmits the power parameters of the distribution transformer obtained by operation into the main control module, and the main control module controls and processes the power parameters:
A. storing the power parameters into a storage module for later data comparison and data calling;
B. displaying real-time data of the distribution transformer and judging and executing the use of the keys by a user or an operator through the obtained power parameters;
C. and transmitting the power parameters to a monitoring background through a modem or a GPRS (general packet radio service), and carrying out data arrangement and analysis on the distribution transformer by the monitoring background.
7. The distribution transformer monitoring method of claim 6, wherein: the summation operation processing in the step (2) includes an FFT algorithm and a least square method.
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| CN201911401011.XA CN111030306A (en) | 2019-12-30 | 2019-12-30 | Distribution transformer monitoring terminal and monitoring method |
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| CN201911401011.XA CN111030306A (en) | 2019-12-30 | 2019-12-30 | Distribution transformer monitoring terminal and monitoring method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116723152A (en) * | 2023-08-11 | 2023-09-08 | 国网江苏省电力有限公司电力科学研究院 | Data transmission method and system of intelligent distribution transformer quick detection device |
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