CN212379527U - Transformer on-load switch action frequency on-line monitoring system - Google Patents
Transformer on-load switch action frequency on-line monitoring system Download PDFInfo
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Abstract
The utility model relates to a transformer on-load switch action number of times on-line monitoring system, it includes be connected with on-load switch and be used for acquireing the data acquisition module of counter contact potential change information when on-load switch acts, the analysis control module who is connected with the data acquisition module, the liquid crystal display module who is connected with the analysis control module, be used for receiving the backstage system module of the data after analysis control module handles and the cell-phone module who is connected with backstage system module; the utility model provides a transformer has load switch action number of times on-line monitoring system, simple structure, the low price, the reliability is high, and power loss is low, advanced characteristics such as sensitivity height adapt to social development demand.
Description
Technical Field
The utility model relates to a transformer has load switch on-line monitoring field, in particular to utilize and gather contact potential change when having load switch counter action and realize remote on-line monitoring transformer and have load switch action number of times on-line monitoring system.
Background
The transformer is used as important equipment for bearing electric energy conversion in the transformer substation, and the condition of the operation condition directly determines whether the operation of the power grid is safe and reliable. The on-load switch is used as an important component for transforming internal conversion voltage and plays an important role in good operation of the transformer. According to the requirement of the 'inspection guide rule of transformation state', once hoisting inspection is carried out to inspect the operation condition of each part of the on-load switch when the on-load switch is switched to 6000-pass 7000 times. At present, the statistics of the number of times of the on-load switch action of the transformer still depends on the routine operation and inspection tour of maintainers, handwriting record archiving and manual computer form entry statistics, and an intelligent, efficient and systematic management system cannot be formed.
At present, no research is available for online monitoring of the action times of the on-load switch at home and abroad, the action times of the on-load switch can be counted only by manual inspection and is limited by an inspection period, and the defect that the action times of the on-load switch are not recorded due to damage of a counter can not be found in time by the mode, so that the operation safety of the on-load switch is influenced. Moreover, the manual patrol counting mode is time-consuming and labor-consuming, and is not in line with the development requirements of modern intelligent power grids. Therefore, it is particularly necessary to research an on-line monitoring system for the number of on-load switch actions of the transformer to replace the traditional manual inspection mode.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a transformer has load switch action number on-line monitoring system is provided, is suitable for the remote monitoring of transformer in the transformer substation having load switch action number, need not personnel's on-the-spot tour and can accomplish the transformer and have the accurate statistics of load switch action number, practices thrift a large amount of manpowers, material resources, financial resources, further improves and has load switch operational reliability.
The utility model adopts the technical proposal that:
a transformer on-load switch action frequency online monitoring system comprises a data acquisition module connected with an on-load switch and used for acquiring counter contact potential change information during on-load switch action, an analysis control module connected with the data acquisition module, a liquid crystal display module connected with the analysis control module, a background system module used for receiving data processed by the analysis control module, and a mobile phone module connected with the background system module.
Furthermore, the background system module and the analysis control module realize data communication through the wireless transmission module and the GPRS communication module.
The system further comprises a transition amplification transfer module, wherein the transition amplification transfer module is connected with the GPRS communication module and is used for receiving the signal of the GPRS communication module, amplifying the received signal and transmitting the amplified signal to the background system module.
Furthermore, the system also comprises a power supply module which is used for supplying power to the analysis control module, the liquid crystal display module and the wireless transmission module.
Further, the power supply module comprises an AC220V power supply and a first power supply circuit module, wherein the first power supply circuit module is used for converting the alternating current 220V voltage into 5V voltage and supplying power to the analysis control module, the liquid crystal display module and the wireless transmission module.
Furthermore, the power supply module also comprises a storage battery module and a second power supply circuit module, wherein the second power supply circuit module is used for converting the direct current 24V voltage into 5V voltage and supplying power to the analysis control module, the liquid crystal display module and the wireless transmission module.
Furthermore, the CPU of the analysis control module adopts PIC18F-4420 of Microchip company for processing data, A/D conversion, liquid crystal display and controlling GPRS communication module to send data information.
Further, the liquid crystal display module receives the control signal from the analysis control module and displays the information of the number of times of the on-load switch action in real time.
Further, the background system module is used for displaying action information of a transformer on-load switch in a transformer substation in the jurisdiction.
Further, the wireless transmission module adopts an NRF2401 wireless data transmission module, and the GPRS communication module adopts an SIM900 module of SIMCOM corporation.
The utility model discloses an actively the effect does:
the utility model provides a transformer has load switch action number of times on-line monitoring system, simple structure, the low price, the reliability is high, and power loss is low, advanced characteristics such as sensitivity height adapt to social development demand.
The utility model discloses utilize the transformer to have the contact potential change when load switch counter moves, application PIC18F4420 single chip microcomputer control wireless transmission module combines GPRS wireless communication technique, with on-the-spot load switch action number of times information real-time passback to backstage system, through the intelligent statistics to data, realizes having accurate, high-efficient, reliable management of load switch to the transformer.
Drawings
In order to clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a system structure diagram of the present invention;
fig. 2 is the structure diagram of the background system of the present invention.
In the drawings, there is shown in the drawings,
1-a data acquisition module;
2-an analysis control module;
3-a liquid crystal display module;
4-a wireless transmission module;
5-GPRS communication module;
61-a first power circuit module;
62-a second power circuit module;
7-a battery module;
8-transition amplification transfer module;
9-background system module;
10-mobile phone module.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the application, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of protection of the present application is not to be construed as being limited.
Example 1
As shown in the attached drawings 1 and 2, the utility model comprises a data acquisition module 1, an analysis control module 2, a liquid crystal display module 3, a wireless transmission module 4, a GPRS communication module 5, a power supply module, a transition amplification and transfer module 8, a background system module 9 and a mobile phone module 10; the output end of the data acquisition module 1 is connected with the analysis control module 2; the output of the analysis control module 2 is connected with the liquid crystal display module 3 and the wireless transmission module 4; the wireless transmission module 4 is used for sending the processing result of the analysis control module 2 to the GPRS communication module 5; the transition amplification transfer module 8 amplifies the data information sent by the GPRS communication module 5 and transmits the data information to the background system module 9; the mobile phone module 10 is used for receiving the expiration early warning and analysis prediction information sent by the background system module 9; the power supply module supplies power to the analysis control module 2, the liquid crystal display module 3 and the wireless transmission module 4.
The data acquisition module 1 is connected with the on-load switch and used for acquiring the change information of the contact potential of the counter when the on-load switch acts, sensing the action of the on-load switch through the change of the contact potential information and inputting an acquisition result into the analysis control module.
The analysis control module 2 adopts a PIC18F4420 multi-pin function multiplexing chip, collects signals sent by a data collector in real time, carries out filtering processing and A/D conversion, then carries out accumulation operation, and controls a liquid crystal screen to carry out field display on the accumulated result. Meanwhile, the wireless transmission module 4 is started, and the acquired and processed result is sent to the GPRS communication module 5.
The liquid crystal display module 3 adopts a 128-by-64 liquid crystal display screen, the module is provided with 20 pins, and the real-time display of the action times of the on-load switch is completed by controlling corresponding pins such as a writing instruction register, a data register, a display control trigger and the like.
The wireless transmission module 4 adopts an NRF2401 wireless data transmission module, the module is a data transmission module which is produced by Nordic and has the working frequency of 2.4GHz and 125 channels, and a GFSK tuning mode is adopted, so that the working voltage is low, and the power consumption is low. The PIC18F4420 singlechip controls the wireless transmission module NRF2401 to transmit the action frequency information to the GPRS communication module 5.
The GPRS communication module 5 adopts a SIM900 module of SIMCOM company and an ARM926EJ-S architecture, has strong performance, can be internally provided with a client application program, and is widely applied to the directions of intelligent meter reading, power monitoring and the like. The module is used for sending the action times information to the transition amplification transfer module 8.
The transition amplification transfer module 8 is used for receiving the signal of the GPRS communication module 5, amplifying the received signal and reliably transmitting the data information processed by the analysis control module 2 to the background system module 9.
And the background system module 9 displays the action information of the on-load switch of the transformer in the transformer substation in the jurisdiction. The background system module 10 has the functions of annual query, quarterly query, monthly query, weekly query, daily query, maintenance plan suggestion, test date, intelligent diagnosis, analysis and prediction, expiration early warning and the like, and equipment management personnel can check the operation information of the on-load switch at any time and comprehensively plan and manage.
The mobile phone module 10 is used for receiving the expiration warning and analysis prediction information from the background system module 9 and reminding the equipment management personnel of making corresponding on-load switch maintenance schedule in advance.
In the present embodiment, the power supply module employs an AC220V power supply and a first power circuit module 61.
The first power circuit module 61 adopts an LM7805 integrated voltage stabilizer as a voltage stabilizing device, a 220V alternating current power supply is sent into the LM7805 for voltage stabilization after voltage transformation, rectification and filtering, and a capacitor with 470 microfarads and 0.1 microfarads is connected to the output end for further filtering ripples to obtain a 5V voltage stabilizing power supply.
Example 2
In this embodiment, the structure of the power module is changed based on embodiment 1, and the rest is completely the same as that of embodiment 1.
Namely, in this embodiment, the utility model comprises a data acquisition module 1, an analysis control module 2, a liquid crystal display module 3, a wireless transmission module 4, a GPRS communication module 5, a power supply module, a transition amplification and transfer module 8, a background system module 9 and a mobile phone module 10; the output end of the data acquisition module 1 is connected with the analysis control module 2; the output of the analysis control module 2 is connected with the liquid crystal display module 3 and the wireless transmission module 4; the wireless transmission module 4 is used for sending the processing result of the analysis control module 2 to the GPRS communication module 5; the transition amplification transfer module 8 amplifies the data information sent by the GPRS communication module 5 and transmits the data information to the background system module 9; the mobile phone module 10 is used for receiving the expiration early warning and analysis prediction information sent by the background system module 9; the power supply module supplies power to the analysis control module 2, the liquid crystal display module 3 and the wireless transmission module 4.
The data acquisition module 1 is connected with the on-load switch and used for acquiring the change information of the contact potential of the counter when the on-load switch acts, sensing the action of the on-load switch through the change of the contact potential information and inputting an acquisition result into the analysis control module.
The analysis control module 2 adopts a PIC18F4420 multi-pin function multiplexing chip, collects signals sent by a data collector in real time, carries out filtering processing and A/D conversion, then carries out accumulation operation, and controls a liquid crystal screen to carry out field display on the accumulated result. Meanwhile, the wireless transmission module 4 is started, and the acquired and processed result is sent to the GPRS communication module 5.
The liquid crystal display module 3 adopts a 128-by-64 liquid crystal display screen, the module is provided with 20 pins, and the real-time display of the action times of the on-load switch is completed by controlling corresponding pins such as a writing instruction register, a data register, a display control trigger and the like.
The wireless transmission module 4 adopts an NRF2401 wireless data transmission module, the module is a data transmission module which is produced by Nordic and has the working frequency of 2.4GHz and 125 channels, and a GFSK tuning mode is adopted, so that the working voltage is low, and the power consumption is low. The PIC18F4420 singlechip controls the wireless transmission module NRF2401 to transmit the action frequency information to the GPRS communication module 5.
The GPRS communication module 5 adopts a SIM900 module of SIMCOM company and an ARM926EJ-S architecture, has strong performance, can be internally provided with a client application program, and is widely applied to the directions of intelligent meter reading, power monitoring and the like. The module is used for sending the action times information to the transition amplification transfer module 8.
The transition amplification transfer module 8 is used for receiving the signal of the GPRS communication module 5, amplifying the received signal and reliably transmitting the data information processed by the analysis control module 2 to the background system module 9.
And the background system module 9 displays the action information of the on-load switch of the transformer in the transformer substation in the jurisdiction. The background system module 10 has the functions of annual query, quarterly query, monthly query, weekly query, daily query, maintenance plan suggestion, test date, intelligent diagnosis, analysis and prediction, expiration early warning and the like, and equipment management personnel can check the operation information of the on-load switch at any time and comprehensively plan and manage.
The mobile phone module 10 is used for receiving the expiration warning and analysis prediction information from the background system module 9 and reminding the equipment management personnel of making corresponding on-load switch maintenance schedule in advance.
The power supply module of the present embodiment includes a battery module 7 and a second power supply circuit module 62.
The second power circuit module 62 adopts an LM2576S-5 chip, the input end of the chip pin is connected to a 24V dc power supply, the peripheral circuit is configured reasonably, and the 24V dc power supply is directly converted into a 5V dc power supply for output.
The solar storage battery module 7 provides 24V direct current output and supplies power to the analysis control module 2, the liquid crystal display module 3 and the wireless transmission module 4 through the second power circuit module 62.
Example 3
In this embodiment, the power modules of embodiment 1 and embodiment 2 are integrated, and the system includes both the AC220V power source and the battery module 7.
In this embodiment, the utility model comprises a data acquisition module 1, an analysis control module 2, a liquid crystal display module 3, a wireless transmission module 4, a GPRS communication module 5, a power supply module, a transition amplification and transfer module 8, a background system module 9 and a mobile phone module 10; the output end of the data acquisition module 1 is connected with the analysis control module 2; the output of the analysis control module 2 is connected with the liquid crystal display module 3 and the wireless transmission module 4; the wireless transmission module 4 is used for sending the processing result of the analysis control module 2 to the GPRS communication module 5; the transition amplification transfer module 8 amplifies the data information sent by the GPRS communication module 5 and transmits the data information to the background system module 9; the mobile phone module 10 is used for receiving the expiration early warning and analysis prediction information sent by the background system module 9; the power supply module supplies power to the analysis control module 2, the liquid crystal display module 3 and the wireless transmission module 4.
The data acquisition module 1 is connected with the on-load switch and used for acquiring the change information of the contact potential of the counter when the on-load switch acts, sensing the action of the on-load switch through the change of the contact potential information and inputting an acquisition result into the analysis control module.
The analysis control module 2 adopts a PIC18F4420 multi-pin function multiplexing chip, collects signals sent by a data collector in real time, carries out filtering processing and A/D conversion, then carries out accumulation operation, and controls a liquid crystal screen to carry out field display on the accumulated result. Meanwhile, the wireless transmission module 4 is started, and the acquired and processed result is sent to the GPRS communication module 5.
The liquid crystal display module 3 adopts a 128-by-64 liquid crystal display screen, the module is provided with 20 pins, and the real-time display of the action times of the on-load switch is completed by controlling corresponding pins such as a writing instruction register, a data register, a display control trigger and the like.
The wireless transmission module 4 adopts an NRF2401 wireless data transmission module, the module is a data transmission module which is produced by Nordic and has the working frequency of 2.4GHz and 125 channels, and a GFSK tuning mode is adopted, so that the working voltage is low, and the power consumption is low. The PIC18F4420 singlechip controls the wireless transmission module NRF2401 to transmit the action frequency information to the GPRS communication module 5.
The GPRS communication module 5 adopts a SIM900 module of SIMCOM company and an ARM926EJ-S architecture, has strong performance, can be internally provided with a client application program, and is widely applied to the directions of intelligent meter reading, power monitoring and the like. The module is used for sending the action times information to the transition amplification transfer module 8.
The transition amplification transfer module 8 is used for receiving the signal of the GPRS communication module 5, amplifying the received signal and reliably transmitting the data information processed by the analysis control module 2 to the background system module 9.
And the background system module 9 displays the action information of the on-load switch of the transformer in the transformer substation in the jurisdiction. The background system module 10 has the functions of annual query, quarterly query, monthly query, weekly query, daily query, maintenance plan suggestion, test date, intelligent diagnosis, analysis and prediction, expiration early warning and the like, and equipment management personnel can check the operation information of the on-load switch at any time and comprehensively plan and manage.
The mobile phone module 10 is used for receiving the expiration warning and analysis prediction information from the background system module 9 and reminding the equipment management personnel of making corresponding on-load switch maintenance schedule in advance.
The power supply modules include an AC220V power supply, a first power circuit module 61, a battery module 7, and a second power circuit module 62. The AC220V power supply and the first power circuit module 61 are communicated to form a path of power supply, and the storage battery module 7 and the second power circuit module 62 form a path of power supply.
The first power circuit module 61 adopts an LM7805 integrated voltage stabilizer as a voltage stabilizing device, a 220V alternating current power supply is transmitted into the first power circuit module 61 after transformation, rectification and filtering, and a capacitor with 470 microfarads and 0.1 microfarads is connected to the output end to further filter ripples to obtain a 5V voltage stabilizing power supply.
The second power circuit module 62 adopts an LM2576S-5 chip, the input end of the chip pin is connected to a 24V dc power supply, the peripheral circuit is configured reasonably, and the 24V dc power supply is directly converted into a 5V dc power supply for output. The solar battery module 7 provides a 24V dc output.
Under normal conditions, adopt 220V to exchange the power supply to analysis control module 2, liquid crystal display module 3, wireless transmission module 4, when the system cuts off the power supply suddenly, battery module 7 supplies power through two power supply circuit module 62, guarantees still can normally work under the condition of cutting off the power supply suddenly.
The working method of the utility model is as follows:
the utility model discloses a counter contact potential variation information perception has load switch switching action when gathering the on-load switch action, and with action information input PIC18F4420 singlechip, the single-chip microcomputer handles the collecting result, control liquid crystal display updates in real time and shows on-load switch action number of times information, simultaneous control transmits the processing result to GPRS communication module through wireless transmission module, the transition amplifies the information amplification processing back that the transfer module sent GPRS communication module, reliably convey to backstage system, backstage system can provide visual monitoring window, the equipment management personnel can read and look over at any time and manage the interior transformer substation transformer on-load switch action information of district. Secondly, the mobile phone of the manager can receive the due early warning and analysis prediction information sent by the background system at any time and any place, and remind the device manager of making corresponding maintenance schedule arrangement of the on-load switch in advance, so that the transformer can be managed efficiently, accurately and reliably. The on-load switch action frequency real-time on-line monitoring system can achieve real-time on-line monitoring of the on-load switch action frequency of the transformer, manual patrol recording statistics is not needed, and the system is low in power loss, high in sensitivity, simple in structure, low in price and high in reliability.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present invention.
Claims (10)
1. The on-load switch action frequency on-line monitoring system of the transformer is characterized by comprising a data acquisition module (1) connected with an on-load switch and used for acquiring potential change information of a counter contact during action of the on-load switch, an analysis control module (2) connected with the data acquisition module (1), a liquid crystal display module (3) connected with the analysis control module (2), a background system module (9) used for receiving data processed by the analysis control module (2) and a mobile phone module (10) connected with the background system module (9).
2. The on-line monitoring system for the number of on-load switch actions of the transformer according to claim 1, characterized in that the background system module (9) and the analysis control module (2) are in data communication through a wireless transmission module (4) and a GPRS communication module (5).
3. The on-load switch action number on-line monitoring system of the transformer according to claim 2, characterized by further comprising a transition amplification transfer module (8), wherein the transition amplification transfer module (8) is connected with the GPRS communication module (5) and is configured to receive a signal from the GPRS communication module (5), amplify the received signal, and transmit the amplified signal to the background system module (9).
4. The on-line monitoring system for the number of on-load switch actions of the transformer according to claim 2, characterized by further comprising a power supply module for supplying power to the analysis control module (2), the liquid crystal display module (3) and the wireless transmission module (4).
5. The on-line monitoring system for the number of transformer on-load switch actions according to claim 4, characterized in that the power supply module comprises an AC220V power supply and a first power circuit module (61), the first power circuit module (61) is used for converting an AC220V voltage into 5V voltage and supplying power to the analysis control module (2), the liquid crystal display module (3) and the wireless transmission module (4).
6. The on-line monitoring system for the number of transformer on-load switch actions according to claim 4 or 5, characterized in that the power supply module further comprises a storage battery module (7) and a second power supply circuit module (62), wherein the second power supply circuit module (62) is used for converting a direct current 24V voltage into 5V voltage and supplying power to the analysis control module (2), the liquid crystal display module (3) and the wireless transmission module (4).
7. The on-load switch action frequency on-line monitoring system of the transformer as claimed in claim 1, characterized in that the CPU of the analysis control module (2) adopts PIC18F-4420 of Microchip company for processing data, a/D conversion, liquid crystal display and controlling GPRS communication module (5) to send data information.
8. The on-line monitoring system for the number of on-load switch actions of the transformer according to claim 1, characterized in that the liquid crystal display module (3) receives the control signal from the analysis control module (2) and displays the information of the number of on-load switch actions in real time.
9. The on-line monitoring system for the number of transformer on-load switch actions according to claim 1, characterized in that the background system module (9) is used for displaying the on-load switch action information of the transformer in the substation in the jurisdiction.
10. The on-load switch action frequency on-line monitoring system of the transformer according to claim 2, characterized in that the wireless transmission module (4) adopts NRF2401 wireless data transmission module, and the GPRS communication module (5) adopts SIM900 module of SIMCOM company.
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| CN202020880729.3U CN212379527U (en) | 2020-05-23 | 2020-05-23 | Transformer on-load switch action frequency on-line monitoring system |
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| CN202020880729.3U CN212379527U (en) | 2020-05-23 | 2020-05-23 | Transformer on-load switch action frequency on-line monitoring system |
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