CN101634680B - Remote monitoring device and remote monitoring method of distribution transformer - Google Patents
Remote monitoring device and remote monitoring method of distribution transformer Download PDFInfo
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- CN101634680B CN101634680B CN2009100907342A CN200910090734A CN101634680B CN 101634680 B CN101634680 B CN 101634680B CN 2009100907342 A CN2009100907342 A CN 2009100907342A CN 200910090734 A CN200910090734 A CN 200910090734A CN 101634680 B CN101634680 B CN 101634680B
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Abstract
The invention discloses a remote monitoring device and a remote monitoring method of a distribution transformer. The device comprises a wireless communication module, a signal processing and control module, a distribution monitoring module, a power module and a battery, wherein the power module further comprises a transforming and rectifying unit, a three-phase rectifier bridge, a first DC voltage dropping unit, a power switching unit, an AC power supply monitoring unit, a second voltage dropping unit and a third DC voltage dropping unit. By adopting the technical scheme of the invention, because the standby power consumption of the monitoring device is reduced below 1 milliwatt, energy can be saved, and moreover, the distribution transformer can still achieve a monitoring function under the condition of long-term power cut, thus the cost is lower.
Description
Technical field
The present invention relates to the distributing transformer monitoring technical field, relate in particular to a kind of distributing transformator remote monitoring apparatus and method.
Background technology
Substation transformer is a power equipment of electric energy directly being distributed to low-voltage customer, and its service data is the important component part of whole power distribution network basic data.
Along with the development of economic level, the user is more and more higher to the requirement of power supply quality, power supply reliability, and the installation of substation transformer is also more and more universal.How to realize the status monitoring of substation transformer, prevention is illegally controlled transformer, stealing, is stolen the generation of incidents such as transformer, guarantees Electrical Safety and electricity consumption reliability, also more and more becomes distinct issues.In power industry, realize that distributing transformer monitoring and anti-theft early-warning function are difficult problems all the time, especially in vast rural area, many substation transformers are dispersed in the field, promptly allow to send warning message, its effect that can play is limited, is difficult to play the anti-theft early-warning function.If use the mode of wire transmission to realize remote monitoring, its cost is too high, sets up the restriction that the dedicated wireless channel transmission manner is subjected to technology maturity, transmission range, maintenance cost etc. again.
In recent years, along with the maturation of mobile communication technology and popularize, engendered and utilized the GPRS technology to realize the solution of long-range distributing transformer monitoring.But the general problem of these products is exactly that power consumption is too big, and the quiescent current of GPRS module is greater than 2mA, and working current is about 200mA, and can only be used in substation transformer has under the situation of alternating current.
Some product is worked in order to exchange under the situation about having a power failure at substation transformer, use common battery of mobile phone, but the monitoring time that these solutions can realize still can only guarantee 24 hours.And the irrigation and drainage transformer in rural area, usually need three to four months time of outage in the winter time, in order to realize the ability of long-term work, some scheme installs complicated, expensive equipment such as solar cell additional, so not only increased the cost of system, and installed and used very inconvenient.
Summary of the invention
The objective of the invention is to propose a kind of distributing transformator remote monitoring apparatus and method, can when substation transformer has a power failure for a long time, still realize monitoring function.
For reaching this purpose, the present invention by the following technical solutions:
A kind of distributing transformator remote monitoring device, comprise wireless communication module, signal Processing and control module, distribution transformer monitoring module, power module and battery, wherein power module further comprises transformation rectification unit, three-phase commutation bridge, the first DC decompression unit, power supply switch unit, Alternating Current Power Supply monitoring means, the second DC decompression unit and the 3rd DC decompression unit
Wireless communication module is connected with signal Processing and control module, be used for Monitoring Data, the reception server sort command that the radio communication mold block transmission signals is handled and control module sends and send to signal Processing and control module, also be used for signal Processing and control module control wireless communication module and power up and initialization;
The distribution transformer monitoring module is connected with signal Processing and control module, is used for the running state data of distribution transformer monitoring module monitors substation transformer, and sends to signal Processing and control module, also is used for the module initialization of signal Processing and control module control distribution transformer monitoring;
Transformation rectification unit input end connects three-phase alternating current, and transformation rectification unit output terminal connects the input end of three-phase commutation bridge, is used for converting 220 volts of alternating currents of three-phase to 9 volts of alternating currents earlier, converts 9 volts of alternating currents to 9 volts of direct currents again;
The output terminal of three-phase commutation bridge connects the input end of the first DC decompression unit, and the output terminal of the first DC decompression unit is connected with the input end of distribution transformer monitoring module, is used for converting 9 volts of direct currents to 5 volts of direct currents, for the distribution transformer monitoring module provides power supply;
One end of Alternating Current Power Supply monitoring means is connected with the first DC decompression unit, and the other end of Alternating Current Power Supply monitoring means is connected with signal Processing and control module, is used to monitor the Alternating Current Power Supply state;
The input end of power supply switch unit is connected with battery with the output terminal of three-phase commutation bridge respectively, is used to select the output terminal of three-phase commutation bridge or battery to power;
The output terminal of power supply switch unit is connected with the input end of the second DC decompression unit, the output terminal of the second DC decompression unit is connected with signal Processing and control module, be used for converting 7.2 volts of direct currents of 9 volts of direct currents or battery to 3.3 volts of direct currents, to signal Processing and control module power supply;
The output terminal of power supply switch unit is connected with the input end of the 3rd DC decompression unit, the output terminal of the 3rd DC decompression unit is connected with wireless communication module, be used for converting 7.2 volts of direct currents of 9 volts of direct currents or battery to 3.8 volts of direct currents, to wireless communication module power supply;
Signal Processing and control module are connected with the 3rd DC decompression unit, are used for transmitting control signal to the 3rd DC decompression unit, whether control the 3rd DC decompression unit to wireless communication module power supply.
Also comprise the travel switch module, the travel switch module is connected with signal Processing and control module, is used for the state of travel switch module monitors distribution chamber door, and sends the travel switch status information to signal Processing and control module.
Also comprise the mercury cut-off module, the mercury cut-off module is connected with signal Processing and control module, is used for the state of mercury cut-off module monitors substation transformer, and sends the mercury cut-off status information to signal Processing and control module.
A kind of distributing transformator remote monitoring method may further comprise the steps:
A, when substation transformer has alternating current, 220 volts of alternating currents of three-phase convert 5 volts of direct currents to, for the distribution transformer monitoring module provides power supply, the running state data of distribution transformer monitoring module monitors substation transformer, send to signal Processing and control module, signal Processing and control module send to the server of far-end again by wireless communication module, synchronous signal is handled and control module is also monitored the state of travel switch and mercury cut-off, and sends to the server of far-end;
B, power supply switch unit switch to the Alternating Current Power Supply pattern, and 220 volts of alternating currents of three-phase convert 3.8 volts of direct currents to and give wireless communication module power supply, and convert 3.3 volts of direct currents to signal Processing and control module power supply;
C, when substation transformer does not have alternating current, distribution transformer monitoring module outage, the Alternating Current Power Supply monitoring means sends signal to signal Processing and control module, informs that substation transformer does not have alternating current;
D, power supply switch unit switch to the direct current supply pattern, and 7.2 volts of direct currents of battery convert 3.8 volts of direct currents to and give wireless communication module power supply, and convert 3.3 volts of direct currents to signal Processing and control module power supply;
The power supply of E, signal Processing and control module control disconnection of wireless communication module enters standby mode;
F, under standby mode, the state of the monitoring of signal Processing and control module travel switch, mercury cut-off and Alternating Current Power Supply monitoring means;
If when action of G travel switch or mercury cut-off action, signal Processing and control module are controlled to be wireless communication module and power up, and control radio communication mold initialization block, travel switch or mercury cut-off status information are sent to the server of far-end, go to step e then;
When if H Alternating Current Power Supply monitoring means transmission substation transformer has alternating current, signal Processing and the module initialization of control module control distribution transformer monitoring, signal Processing and control module are controlled to be wireless communication module and power up, and the initialization block of control radio communication mold, and go to steps A.
220 volts of alternating currents of three-phase convert 9 volts of alternating currents to by the transformation rectification unit, and 9 volts of alternating currents convert 9 volts of direct currents to by three-phase commutation bridge, and 9 volts of direct currents become 5 volts of direct currents by the first DC decompression cell translation, give the distribution transformer monitoring module for power supply;
7.2 volts of direct currents of 9 volts of direct currents or battery become 3.8 volts of direct currents to give wireless communication module power supply by the 3rd DC decompression cell translation;
7.2 volts of direct currents of 9 volts of direct currents or battery become 3.3 volts of direct currents to signal Processing and control module power supply by the second DC decompression cell translation.
The substation transformer running state data of distribution transformer monitoring module monitors comprises voltage, electric current, power factor and electric degree.
The travel switch module is used to monitor the state of distribution chamber door.
The mercury cut-off module is used to monitor the state of substation transformer.
Adopted technical scheme of the present invention, because this monitoring device power consumption when standby drops to below 1 milliwatt, can conserve energy, when substation transformer has a power failure for a long time, still realize monitoring function, and cost is lower.
Description of drawings
Fig. 1 is the structural representation of distributing transformator remote monitoring device in the specific embodiment of the invention.
Embodiment
Further specify technical scheme of the present invention below in conjunction with accompanying drawing and by embodiment.
Fig. 1 is the structural representation of distributing transformator remote monitoring device in the specific embodiment of the invention.As shown in Figure 1, this distributing transformator remote monitoring device, comprise wireless communication module 1, signal Processing and control module 2, distribution transformer monitoring module 3, power module 4, battery 5, travel switch module 6 and mercury cut-off module 7, wherein power module further comprises transformation rectification unit 401, three-phase commutation bridge 402, the first DC decompression unit 403, power supply switch unit 404, Alternating Current Power Supply monitoring means 405, the second DC decompression unit 406 and the 3rd DC decompression unit 407.
Wireless communication module is connected with signal Processing and control module, Monitoring Data, the reception server sort command that the radio communication mold block transmission signals is handled and control module sends also sends to signal Processing and control module, and signal Processing and control module control wireless communication module power up and initialization.
The distribution transformer monitoring module is connected with signal Processing and control module, the running state data of distribution transformer monitoring module monitors substation transformer, and send to signal Processing and control module, signal Processing and the module initialization of control module control distribution transformer monitoring.
Transformation rectification unit input end connects three-phase alternating current, and transformation rectification unit output terminal connects the input end of three-phase commutation bridge, converts 220 volts of alternating currents of three-phase to 9 volts of alternating currents earlier, converts 9 volts of alternating currents to 9 volts of direct currents again.
The output terminal of three-phase commutation bridge connects the input end of the first DC decompression unit, and the output terminal of the first DC decompression unit is connected with the input end of distribution transformer monitoring module, can convert 9 volts of direct currents to 5 volts of direct currents, for the distribution transformer monitoring module provides power supply.
One end of Alternating Current Power Supply monitoring means is connected with the first DC decompression unit, and the other end of Alternating Current Power Supply monitoring means is connected with signal Processing and control module, is used to monitor the Alternating Current Power Supply state.
The input end of power supply switch unit is connected with battery with the output terminal of three-phase commutation bridge respectively, selects the output terminal or the battery of three-phase commutation bridge to power.
The output terminal of power supply switch unit is connected with the input end of the second DC decompression unit, the output terminal of the second DC decompression unit is connected with signal Processing and control module, can convert 7.2 volts of direct currents of 9 volts of direct currents or battery to 3.3 volts of direct currents, to signal Processing and control module power supply.
The output terminal of power supply switch unit is connected with the input end of the 3rd DC decompression unit, the output terminal of the 3rd DC decompression unit is connected with wireless communication module, can convert 7.2 volts of direct currents of 9 volts of direct currents or battery to 3.8 volts of direct currents, to wireless communication module power supply.
Signal Processing and control module are connected with the 3rd DC decompression unit, and signal Processing and control module transmit control signal to the 3rd DC decompression unit, whether control the 3rd DC decompression unit to wireless communication module power supply.
The travel switch module is connected with signal Processing and control module, the state of travel switch module monitors distribution chamber door, and to signal Processing and control module transmission travel switch status information.
The mercury cut-off module is connected with signal Processing and control module, the state of mercury cut-off module monitors substation transformer, and to signal Processing and control module transmission mercury cut-off status information.
The course of work of this distributing transformator remote monitoring device is described below:
When substation transformer has alternating current, 220 volts of alternating currents of three-phase convert 9 volts of alternating currents to by the transformation rectification unit, 9 volts of alternating currents are by 9 volts of direct currents of three-phase commutation bridge, 9 volts of direct currents become 5 volts of direct currents by the first DC decompression cell translation, give the distribution transformer monitoring module for power supply, the running state data of distribution transformer monitoring module monitors substation transformer, comprise voltage, electric current, power factor and electric degree, send to signal Processing and control module, signal Processing and control module send to the server of far-end again by wireless communication module.
Signal Processing and control module are also monitored the state of travel switch and mercury cut-off, and send to the server of far-end.
Wherein travel switch is monitored the state of distribution chamber door, and opening, close all of distribution chamber door can produce trigger event in signal Processing and control module.
The state of mercury cut-off monitoring substation transformer, substation transformer rock, when mobile, the mercury cut-off conducting produces trigger event in signal Processing and control module.
The power supply switch unit switches to the Alternating Current Power Supply pattern, 220 volts of alternating currents of three-phase become 3.8 volts of direct currents to give wireless communication module power supply by the 3rd DC decompression cell translation after converting 9 volts of direct currents to again, and 220 volts of alternating currents of three-phase become 3.3 volts of direct currents to signal Processing and control module power supply by the second DC decompression cell translation after converting 9 volts of direct currents to again.
When substation transformer does not have alternating current, the outage of distribution transformer monitoring module, the Alternating Current Power Supply monitoring means sends signal to signal Processing and control module, informs that substation transformer does not have alternating current.
The power supply switch unit switches to the direct current supply pattern, 7.2 volts of direct currents of battery become 3.8 volts of direct currents to give wireless communication module power supply by the 3rd DC decompression cell translation, and become 3.3 volts of direct currents to signal Processing and control module power supply by the second DC decompression cell translation.
The power supply of signal Processing and control module control disconnection of wireless communication module enters standby mode.
Under standby mode, the state of signal Processing and control module monitoring travel switch, mercury cut-off and Alternating Current Power Supply monitoring means.
If when travel switch action or mercury cut-off action, signal Processing and control module are controlled to be wireless communication module and power up, and control radio communication mold initialization block, travel switch or mercury cut-off status information are sent to the server of far-end, the power supply of signal Processing and control module control disconnection of wireless communication module enters standby mode once more.
When if Alternating Current Power Supply monitoring means transmission substation transformer has alternating current, signal Processing and the module initialization of control module control distribution transformer monitoring, signal Processing and control module are controlled to be wireless communication module and power up, and the initialization block of control radio communication mold, the processing mode when this monitoring device recovery substation transformer has alternating current.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with the people of this technology in the disclosed technical scope of the present invention; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.
Claims (6)
1. distributing transformator remote monitoring device, it is characterized in that, comprise wireless communication module, signal Processing and control module, travel switch module, mercury cut-off module, distribution transformer monitoring module, power module and battery, wherein power module further comprises transformation rectification unit, three-phase commutation bridge, the first DC decompression unit, power supply switch unit, Alternating Current Power Supply monitoring means, the second DC decompression unit and the 3rd DC decompression unit
Wireless communication module is connected with signal Processing and control module, be used for Monitoring Data, the reception server sort command that the radio communication mold block transmission signals is handled and control module sends and send to signal Processing and control module, also be used for signal Processing and control module control wireless communication module and power up and initialization;
The travel switch module is connected with signal Processing and control module, is used for the state of travel switch module monitors distribution chamber door, and sends the travel switch status information to signal Processing and control module;
The mercury cut-off module is connected with signal Processing and control module, is used for the state of mercury cut-off module monitors substation transformer, and sends the mercury cut-off status information to signal Processing and control module;
The distribution transformer monitoring module is connected with signal Processing and control module, is used for the running state data of distribution transformer monitoring module monitors substation transformer, and sends to signal Processing and control module, also is used for the module initialization of signal Processing and control module control distribution transformer monitoring;
Transformation rectification unit input end connects three-phase alternating current, and transformation rectification unit output terminal connects the input end of three-phase commutation bridge, is used for converting 220 volts of alternating currents of three-phase to 9 volts of alternating currents earlier, converts 9 volts of alternating currents to 9 volts of direct currents again;
The output terminal of three-phase commutation bridge connects the input end of the first DC decompression unit, and the output terminal of the first DC decompression unit is connected with the input end of distribution transformer monitoring module, is used for converting 9 volts of direct currents to 5 volts of direct currents, for the distribution transformer monitoring module provides power supply;
One end of Alternating Current Power Supply monitoring means is connected with the first DC decompression unit, and the other end of Alternating Current Power Supply monitoring means is connected with signal Processing and control module, is used to monitor the Alternating Current Power Supply state;
The input end of power supply switch unit is connected with battery with the output terminal of three-phase commutation bridge respectively, is used to select the output terminal of three-phase commutation bridge or battery to power;
The output terminal of power supply switch unit is connected with the input end of the second DC decompression unit, the output terminal of the second DC decompression unit is connected with signal Processing and control module, be used for converting 7.2 volts of direct currents of 9 volts of direct currents or battery to 3.3 volts of direct currents, to signal Processing and control module power supply;
The output terminal of power supply switch unit is connected with the input end of the 3rd DC decompression unit, the output terminal of the 3rd DC decompression unit is connected with wireless communication module, be used for converting 7.2 volts of direct currents of 9 volts of direct currents or battery to 3.8 volts of direct currents, to wireless communication module power supply;
Signal Processing and control module are connected with the 3rd DC decompression unit, are used for transmitting control signal to the 3rd DC decompression unit, whether control the 3rd DC decompression unit to wireless communication module power supply.
2. a distributing transformator remote monitoring method is characterized in that, may further comprise the steps:
A, when substation transformer has alternating current, 220 volts of alternating currents of three-phase convert 5 volts of direct currents to, for the distribution transformer monitoring module provides power supply, the running state data of distribution transformer monitoring module monitors substation transformer, send to signal Processing and control module, signal Processing and control module send to the server of far-end again by wireless communication module, synchronous signal is handled and control module is also monitored the state of travel switch and mercury cut-off, and sends to the server of far-end;
B, power supply switch unit switch to the Alternating Current Power Supply pattern, and 220 volts of alternating currents of three-phase convert 3.8 volts of direct currents to and give wireless communication module power supply, and convert 3.3 volts of direct currents to signal Processing and control module power supply;
C, when substation transformer does not have alternating current, distribution transformer monitoring module outage, the Alternating Current Power Supply monitoring means sends signal to signal Processing and control module, informs that substation transformer does not have alternating current;
D, power supply switch unit switch to the direct current supply pattern, and 7.2 volts of direct currents of battery convert 3.8 volts of direct currents to and give wireless communication module power supply, and convert 3.3 volts of direct currents to signal Processing and control module power supply;
The power supply of E, signal Processing and control module control disconnection of wireless communication module enters standby mode;
F, under standby mode, the state of the monitoring of signal Processing and control module travel switch, mercury cut-off and Alternating Current Power Supply monitoring means;
If when action of G travel switch or mercury cut-off action, signal Processing and control module are controlled to be wireless communication module and power up, and control radio communication mold initialization block, travel switch or mercury cut-off status information are sent to the server of far-end, go to step e then;
When if H Alternating Current Power Supply monitoring means transmission substation transformer has alternating current, signal Processing and the module initialization of control module control distribution transformer monitoring, signal Processing and control module are controlled to be wireless communication module and power up, and the initialization block of control radio communication mold, and go to steps A.
3. a kind of distributing transformator remote monitoring method according to claim 2, it is characterized in that, 220 volts of alternating currents of three-phase convert 9 volts of alternating currents to by the transformation rectification unit, 9 volts of alternating currents convert 9 volts of direct currents to by three-phase commutation bridge, 9 volts of direct currents become 5 volts of direct currents by the first DC decompression cell translation, give the distribution transformer monitoring module for power supply;
7.2 volts of direct currents of 9 volts of direct currents or battery become 3.8 volts of direct currents to give wireless communication module power supply by the 3rd DC decompression cell translation;
7.2 volts of direct currents of 9 volts of direct currents or battery become 3.3 volts of direct currents to signal Processing and control module power supply by the second DC decompression cell translation.
4. a kind of distributing transformator remote monitoring method according to claim 2 is characterized in that the substation transformer running state data of distribution transformer monitoring module monitors comprises voltage, electric current, power factor and electric degree.
5. a kind of distributing transformator remote monitoring method according to claim 2 is characterized in that the travel switch module is used to monitor the state of distribution chamber door.
6. a kind of distributing transformator remote monitoring method according to claim 2 is characterized in that the mercury cut-off module is used to monitor the state of substation transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100907342A CN101634680B (en) | 2009-08-07 | 2009-08-07 | Remote monitoring device and remote monitoring method of distribution transformer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100907342A CN101634680B (en) | 2009-08-07 | 2009-08-07 | Remote monitoring device and remote monitoring method of distribution transformer |
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| CN101634680A CN101634680A (en) | 2010-01-27 |
| CN101634680B true CN101634680B (en) | 2011-09-07 |
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| CN2009100907342A Expired - Fee Related CN101634680B (en) | 2009-08-07 | 2009-08-07 | Remote monitoring device and remote monitoring method of distribution transformer |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101846708B (en) * | 2010-05-05 | 2012-02-01 | 广东电网公司电力科学研究院 | Method for detecting power-failure counting function of distribution transformer terminals in batch |
| CN103698619A (en) * | 2012-09-28 | 2014-04-02 | 四川奥格科技有限公司 | Remote monitoring system of distribution transformer |
| CN106950458A (en) * | 2017-03-15 | 2017-07-14 | 国家电网公司 | The short circuit of low pressure uniline and disconnection detection device |
| CN108829401B (en) * | 2018-05-21 | 2021-02-09 | 全球能源互联网研究院有限公司 | Monitoring mode switching method, device, terminal and readable storage medium |
| CN109088478B (en) * | 2018-10-17 | 2024-02-27 | 江苏久创电气科技有限公司 | Remote terminal equipment of distribution transformer |
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