CN106093690A - Utilize the iron core on-line monitoring system of thermo-electric generation supply source - Google Patents

Utilize the iron core on-line monitoring system of thermo-electric generation supply source Download PDF

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Publication number
CN106093690A
CN106093690A CN201610665582.4A CN201610665582A CN106093690A CN 106093690 A CN106093690 A CN 106093690A CN 201610665582 A CN201610665582 A CN 201610665582A CN 106093690 A CN106093690 A CN 106093690A
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CN
China
Prior art keywords
module
unit
power supply
voltage regulation
thermo
Prior art date
Application number
CN201610665582.4A
Other languages
Chinese (zh)
Inventor
崔玉顺
李占勇
徐伟丽
苏有功
欧干新
张芳晶
王雪梅
李占军
刘富强
王大成
肖建成
任磊
丁少帅
田静
陈继龙
Original Assignee
国网天津市电力公司
国家电网公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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Application filed by 国网天津市电力公司, 国家电网公司 filed Critical 国网天津市电力公司
Priority to CN201610665582.4A priority Critical patent/CN106093690A/en
Publication of CN106093690A publication Critical patent/CN106093690A/en

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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/50Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G01R31/62Testing of transformers
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/34Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
    • H02J7/35Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02NELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
    • H02N11/00Generators or motors not provided for elsewhere; Alleged perpetua mobilia obtained by electric or magnetic means
    • H02N11/002Generators

Abstract

The present invention relates to a kind of iron core on-line monitoring system utilizing thermo-electric generation supply source, including power supply unit, detector unit, storage and display unit, data transfer unit, described storage and display unit include data memory module and realtime curve module, and data transfer unit is connected with detector unit by data transmission bus with storage and display unit;Being connected with power supply unit by power line, power supply unit is installed on transformator surface, utilizes the temperature difference to produce electric energy.The present invention reduces manual operation, improve real-time and reversibility, simplify O&M operation, decrease insecurity and the passivity of field survey, and there is the strongest station end suitability, do not use condition to limit transformer voltage grade and newness degree.

Description

Utilize the iron core on-line monitoring system of thermo-electric generation supply source
Technical field
The invention belongs to substation equipment maintenance and repair FIELD OF THE INVENTIONThe, relate to transformator, a kind of ferrum utilizing thermo-electric generation supply source Core on-line monitoring system.
Background technology
Transformator is one of equipment of most critical in power transformation primary equipment, and monitoring and maintenance to it are power transformation operation and inspection Repair the core of work.The safety of whole power system, economy, reliability are played to pass by the running status of power transformer Important effect.And one of properly functioning main standard of power transformer is ensuring that some reliable grounds, phase to phase fault Iron core can be made to produce suspended voltage over the ground, and multipoint earthing of iron core then can make power transformer produce heating accident, and any one is all The safe and reliable operation of transformator itself and electrical network can be had a strong impact on.
In order to understand the health status of power transformer at daily power transformation operation in safeguarding timely, discovery as early as possible is hidden Property fault, conventional detection means is to draw grounding sleeve outside the sampling chemical examination of transformator oil gas, chromatography and transformer core The checking for grounded current of down conductor.But it should be noted that these ensure the main of the normal O&M of power transformer safety simultaneously The difficulty of the equal various degrees of means.When detecting transformer iron core grounding current, currently used traditional method is Pincerlike meter is used by hand earth current to be measured and record when substation inspection or maintenance by operation maintenance personnel, this mode Method step is many, operation is complicated, and can not on-line analysis, the precision of detection and ageing be problematic in that, and distinguish faint Earth-fault current and strong electromagnetic environmental disturbances etc. have certain difficulty.
Thermoelectric generation based on Seebeck effect in recent years wearable electronic, residual heat of tail gas of automobile reclaim and There is more application in the fields such as industrial afterheat recovery.Temperature difference heat generation technology utilizes the temperature difference between high and low temperature thermal source, produces Electromotive force, supply power electronic equipment uses.
Summary of the invention
In place of it is an object of the invention to overcome the deficiencies in the prior art, it is provided that a kind of reliable and stable, profit of being convenient to mount and dismount With the iron core on-line monitoring system of thermo-electric generation supply source.
The present invention solves technical problem and be the technical scheme is that
A kind of iron core on-line monitoring system utilizing thermo-electric generation supply source, including power supply unit, detector unit, storage And display unit, data transfer unit, described storage and display unit include data memory module and realtime curve module, Data transfer unit is connected with detector unit by data transmission bus with storage and display unit;Supplied with power supply by power line Being connected to unit, power supply unit is installed on transformator surface, utilizes the temperature difference to produce electric energy.
And, described power supply unit includes organizing the thermo-electric generation sheet of parallel connection, voltage regulation of voltage regulation module, short-circuit and warm more Degree protection module, running status indicating circuit and power supply output module, the thermo-electric generation sheet of many group parallel connections connects voltage stabilizing respectively and adjusts Die block, short circuit and temperature protection module, voltage regulation of voltage regulation module connects short circuit and temperature protection module, short circuit and temperature protection mould Block connects running status indicating circuit, power supply output module respectively.
And, described power supply unit also includes solar module, and solar module connects surely respectively Pressure voltage regulating module, short circuit and temperature protection module.
And, the thermo-electric generation sheet that many groups are in parallel installs radiating module.
And, described detector unit includes Luo-coil, current data acquisition process circuit and master controller, Luo-coil Being arranged on down conductor, Luo-coil connects current data acquisition process circuit, and current data acquisition process circuit connects Master controller, master controller connects data transfer unit, data memory module, realtime curve module respectively.
Advantages of the present invention and good effect be:
1, the present invention utilizes thermo-electric generation principle, collects transformator heating and is converted to electric energy, attaches directly to transformer side table Face, is aided with solaode, and the requirement to environment is low, and electric power lasting stability in cruising time is reliable, and without changing in station Make, can accomplish with put with, be convenient to mount and dismount.
2, the present invention utilizes solid storage device real-time recorded data, meets monitoring continuously, the demand of complete backtracking.
3, the present invention passes through realtime curve module, can the most intuitively understand tested value, check at any time.
4, the present invention is by wired and wirelessly transfer data to monitoring system, can remotely grasp transformator operating mode;
5, all persistent fever equipment in station all can be used with independent utility, can open up by power supply unit of the present invention Malleability is strong.
6, The present invention reduces manual operation, improve real-time and reversibility, simplify O&M operation, decrease reality The insecurity of ground measurement and passivity, and there is the strongest station end suitability, transformer voltage grade and newness degree are not had Use condition is had to limit.
Accompanying drawing explanation
Fig. 1 is the circuit block diagram of the present invention;
Fig. 2 is the circuit block diagram of power supply unit;
Fig. 3 is detector unit, storage and display unit, data transfer unit connection diagram;
Fig. 4 is thermo-electric generation schematic diagram.
Detailed description of the invention
The invention will be further described below in conjunction with the accompanying drawings and by specific embodiment, and following example are descriptive , it not determinate, it is impossible to limit protection scope of the present invention with this.
A kind of iron core on-line monitoring system utilizing thermo-electric generation supply source, including power supply unit, detector unit, storage And display unit, data transfer unit.Described storage and display unit include data memory module and realtime curve module. Data transfer unit is connected with detector unit by data transmission bus;It is connected with power supply unit by power line, is used for Data storage, display and information transmission etc..Power supply unit is installed on transformator surface, utilizes the temperature difference to produce electric energy.
Described power supply unit includes solar module, many groups thermo-electric generation sheet in parallel, radiating module, steady Pressure voltage regulating module, short circuit and temperature protection module, running status indicating circuit, power supply output module are solar module, many The thermo-electric generation sheet of group parallel connection connects voltage regulation of voltage regulation module, short circuit and temperature protection module respectively, and voltage regulation of voltage regulation module connects short Road and temperature protection module, temperature protection module connects running status indicating circuit, power supply output module respectively.Organizing parallel connection more Thermo-electric generation sheet on install radiating module.
Detector unit includes Luo-coil, current data acquisition process circuit and master controller, and Luo-coil is arranged on and connects On ground downlead, Luo-coil connects current data acquisition process circuit, and current data acquisition process circuit connects master controller, Master controller connects data transfer unit, data memory module, realtime curve module respectively.
Operation principle of the present invention:
The lasting temperature difference that transformer case and environment exist, is electromotive force by thermo-electric generation sheet by temperature difference potential energy converting and energy Can, an independent Luo-coil gather iron core grounding current data from down conductor, by form wirelessly or non-wirelessly By data signal teletransmission to monitoring system of electric substation, also real-time data collection can be stored in solid storage device simultaneously.
As shown in Figure 4, thermoelectric generation is to utilize two kinds of electric conductors coupled together or partly lead to thermo-electric generation principle The Seebeck effect of body, converts thermal energy into a kind of technology of electric energy.The loop being made up of two distinct types of quasiconductor, when One end of device is in the condition of high temperature other end and is placed under low temperature state, will form electromotive force in the loop.
Above-described is only the preferred embodiment of the present invention, it is noted that for those of ordinary skill in the art For, on the premise of without departing from inventive concept, it is also possible to make some deformation and improvement, these broadly fall into the protection of the present invention Scope.

Claims (5)

1. the iron core on-line monitoring system utilizing thermo-electric generation supply source, it is characterised in that: include power supply unit, detection Unit, storage and display unit, data transfer unit, described storage and display unit include data memory module and real time data Display module, data transfer unit is connected with detector unit by data transmission bus with storage and display unit;Pass through power supply Line is connected with power supply unit, and power supply unit is installed on transformator surface, utilizes the temperature difference to produce electric energy.
Monitoring system the most according to claim 1, it is characterised in that: described power supply unit includes organizing parallel connection more Thermo-electric generation sheet, voltage regulation of voltage regulation module, short circuit and temperature protection module, running status indicating circuit and power supply output module are many The thermo-electric generation sheet of group parallel connection connects voltage regulation of voltage regulation module, short circuit and temperature protection module respectively, and voltage regulation of voltage regulation module connects short Road and temperature protection module, short circuit and temperature protection module connect running status indicating circuit, power supply output module respectively.
Monitoring system the most according to claim 2, it is characterised in that: described power supply unit also includes solar-electricity Pond module, solar module connects voltage regulation of voltage regulation module, short circuit and temperature protection module respectively.
Monitoring system the most according to claim 2, it is characterised in that: on the thermo-electric generation sheet that many groups are in parallel, heat radiation is installed Module.
Monitoring system the most according to claim 1, it is characterised in that: described detector unit includes Luo-coil, electric current number According to acquisition process circuit and master controller, Luo-coil is arranged on down conductor, and Luo-coil connects current data collection Processing circuit, current data acquisition process circuit connects master controller, and master controller connects data transfer unit respectively, data are deposited Storage module, realtime curve module.
CN201610665582.4A 2016-08-11 2016-08-11 Utilize the iron core on-line monitoring system of thermo-electric generation supply source CN106093690A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610665582.4A CN106093690A (en) 2016-08-11 2016-08-11 Utilize the iron core on-line monitoring system of thermo-electric generation supply source

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610665582.4A CN106093690A (en) 2016-08-11 2016-08-11 Utilize the iron core on-line monitoring system of thermo-electric generation supply source

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201859174U (en) * 2010-09-29 2011-06-08 思源电气股份有限公司 On-line monitoring system for grounding current of transformer iron core
US20110187196A1 (en) * 2010-02-01 2011-08-04 Yeo Simdong Photovoltaic power generation systems and methods
CN202583315U (en) * 2012-05-19 2012-12-05 保定天腾电气有限公司 On-line monitoring system for transformer iron core grounding current
CN203405510U (en) * 2013-09-03 2014-01-22 国家电网公司 Long-life digital transformer iron core grounding current monitoring device
CN203894317U (en) * 2014-03-19 2014-10-22 浙江科畅电子有限公司 Online monitoring device used for leakage current of high-voltage cables
CN204882707U (en) * 2015-07-30 2015-12-16 国家电网公司 Transformer core current monitoring device
CN105606236A (en) * 2016-03-18 2016-05-25 西安交通大学 Passive wireless temperature measurement sensor, and temperature measurement method thereof
CN105758514A (en) * 2016-03-30 2016-07-13 国网江西省电力科学研究院 Transformer-monitoring apparatus based on thermoelectric conversion energy acquisition

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110187196A1 (en) * 2010-02-01 2011-08-04 Yeo Simdong Photovoltaic power generation systems and methods
CN201859174U (en) * 2010-09-29 2011-06-08 思源电气股份有限公司 On-line monitoring system for grounding current of transformer iron core
CN202583315U (en) * 2012-05-19 2012-12-05 保定天腾电气有限公司 On-line monitoring system for transformer iron core grounding current
CN203405510U (en) * 2013-09-03 2014-01-22 国家电网公司 Long-life digital transformer iron core grounding current monitoring device
CN203894317U (en) * 2014-03-19 2014-10-22 浙江科畅电子有限公司 Online monitoring device used for leakage current of high-voltage cables
CN204882707U (en) * 2015-07-30 2015-12-16 国家电网公司 Transformer core current monitoring device
CN105606236A (en) * 2016-03-18 2016-05-25 西安交通大学 Passive wireless temperature measurement sensor, and temperature measurement method thereof
CN105758514A (en) * 2016-03-30 2016-07-13 国网江西省电力科学研究院 Transformer-monitoring apparatus based on thermoelectric conversion energy acquisition

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Application publication date: 20161109

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