CN105841746A - Multi-parameter fusion type on-line high-voltage high-capacity dry type reactor monitoring device - Google Patents
Multi-parameter fusion type on-line high-voltage high-capacity dry type reactor monitoring device Download PDFInfo
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- CN105841746A CN105841746A CN201610345584.5A CN201610345584A CN105841746A CN 105841746 A CN105841746 A CN 105841746A CN 201610345584 A CN201610345584 A CN 201610345584A CN 105841746 A CN105841746 A CN 105841746A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
Abstract
The invention discloses a multi-parameter fusion type on-line high-voltage high-capacity dry type reactor monitoring device comprising a main control chamber, a protection chamber, and a main control module arranged in a measurement and control cabinet. An electrical parameter monitoring module is arranged in the protection chamber; a monitoring server is arranged in the main control chamber and is connected with a photoelectric switch in an interactive mode by a communication line; and the photoelectric switch is connected with the electrical parameter monitoring module and the main control module in an interactive mode by fiber communication. The main control module is connected with a vibration monitoring module, a partial discharge monitoring module and an uneven magnetic flux monitoring module in an interactive mode by communication lines and is also connected with a thermal imaging monitoring module in an interactive mode by the photoelectric switch. According to the invention, on-line monitoring of the temperature field, the electrical parameter, mechanical vibration, partial discharging, leakage magnetic field characteristics of the dry type air core shunt reactor can be realized in an operation state; an accident can be avoided effectively; secure and reliable operation of the transformer substation can be guaranteed.
Description
Technical field
The invention belongs to dry anti-monitoring device technical field, the high pressure particularly relating to a kind of multi-parameter fusion is big
Capacity dry reactor on-Line Monitor Device.
Background technology
Up to the present, many transformer station, current conversion stations all occur overdrying to resist serious burnout failure, the most not
Weary supertension, ultra-high voltage transformer station and ultra-high voltage converter station, these accidents have had a strong impact on power plant safety
Run, cause massive losses.
The dry anti-reason burnt is a lot, such as: dry anti-coil commonly used drum type brake winding, each reactance
Device coil is made up of multiple encapsulatings, and the turn insulation between wire is the thinnest, the burr of conductive line surfaces, metal
Chip or other foreign body are easy to turn insulation pierce through, cause turn-to-turn short circuit, form a short-circuited conducting sleeve.Only
Having a some generation turn-to-turn short circuit in wanting line bag, this reactor has reformed into an actual transformator,
And, the very big on high-tension side number of turn of no-load voltage ratio of this transformator approximates the number of turn of reactor, low pressure
Side only has a circle and low-pressure side short circuit operation, the principle of ampere-turn equilibrium the electric current understanding low-pressure side is very big,
The huge heating power that the biggest short circuit current produces in short-circuited conducting sleeve can be at short notice by reactor
Burn, so, we assert: the initial stage of every burnout failure together all occurred turn-to-turn short circuit.
The fault detection technique of dry type parallel reactor the most all belongs to newer problem, by the end of
At present, domestic existing high pressure dry shunt reactor turn-to-turn protection device in terms of protection philosophy
The protection requirement of inductor turn-to-turn fault can not be met, simultaneously in reactor on-line monitoring and fault diagnosis skill
Art aspect is at the early-stage, about reactor arrangement monitoring running state data excavation, diagnose and assess skill
Art aspect, the most substantial amounts of new technique needs to be studied further.At present relevant reactor detection technique and examining
Disconnected technology developing trend is in intellectuality, and the developing trend of the manufacturing technology of monitoring device is in integrated, small-sized
Change.
Along with China's supertension, the fast development of extra-high voltage grid, dry type parallel reactor is linear to have
Spend, simple in construction, the advantage such as cheap and be widely used.Put into operation in a large number along with equipment simultaneously,
The problem that dry type parallel reactor occurs in running constantly comes out, in Ultra-high Voltage Substations and extra-high voltage
Repeatedly there is dry type parallel reactor burnout failure in current conversion station.
Due to the particularity of dry type parallel reactor, its operating condition and equipment control are complex,
Lack necessary fault detect means and diagnostic techniques, only rely on the conventional inspection such as repair based on condition of component and periodic inspection
Survey method, it is impossible to dry type parallel reactor short circuit in winding and the fault such as winding is overheated in effectively finding to run.
In view of the foregoing, studying dry type parallel reactor intellectuality on-line monitoring technique, it is in time
Find dry type air core shunt reactor Hidden fault, trouble-saving have great significance.
Summary of the invention
Present invention solves the problem in that the high-voltage large-capacity dry reactor providing a kind of multi-parameter fusion exists
Line monitoring device, it is possible to the accident that is prevented effectively from occurs, it is ensured that substation safety, reliability service.
The present invention is to be achieved through the following technical solutions:
A kind of high-voltage large-capacity dry reactor on-Line Monitor Device of multi-parameter fusion, including master control room,
Protection room and the main control module being arranged in observing and controlling cabinet；Protection is provided with electric parameter monitoring modular, institute in room
The master control room stated is provided with monitoring server, described monitoring server is connected alternately by order wire
Having photoelectricity switch, described photoelectricity switch is connected the most alternately by fiber optic communication electric parameter
Monitoring modular and main control module, main control module is connected alternately by order wire and has vibration monitoring module, office
Portion's electric discharge monitoring modular and uneven flux monitoring module, main control module connects alternately also by photoelectricity switch
It is connected to thermal imaging monitoring modular.
Described electric parameter monitoring modular includes being arranged on the voltage sensor in 35kV protection room and electricity
Flow sensor, voltage sensor and current sensor are all connected with monitoring server by photoelectricity switch.
Described partial discharge monitoring module includes the office being arranged on dry reactor fiberglass high trestle top
Putting sensor, partial enlargement sensor is connected with the main control module in observing and controlling cabinet by order wire.
Described vibration monitoring module includes that the vibration being arranged on dry reactor fiberglass high trestle top passes
Sensor, vibrating sensor is connected with the main control module in observing and controlling cabinet by order wire.
Described uneven flux monitoring module includes that the stray field being arranged on isosceles triangle symmetrical center line bottom passes
Sensor, stray field sensor is connected with the main control module in observing and controlling cabinet by order wire.
Described thermal imaging monitoring modular includes being arranged on the infrared thermoviewer near reactor at ground, red
Outer imager is connected with the main control module in observing and controlling cabinet by order wire.
Compared with prior art, the present invention has a following useful technique effect:
The high-voltage large-capacity dry reactor on-Line Monitor Device of the multi-parameter fusion that the present invention provides, this dress
Put research and use the integrated fault diagnosis technology of multi-parameter fusion, realize dry type empty under operation
Core shunt reactor temperature field, electric parameter and mechanical vibration, shelf depreciation, stray field characteristic are carried out
Line is monitored, and is carried out dry type parallel reactor operating condition and fault type by fault analysis diagnosis system
Intelligent decision making and fault pre-alarming, it is possible to the accident that is prevented effectively from occurs, it is ensured that substation safety, reliably transport
OK.
Accompanying drawing explanation
The high-voltage large-capacity dry reactor on-Line Monitor Device of the multi-parameter fusion that Fig. 1 provides for the present invention
Structural representation.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described in further detail, described in be to the present invention
Explanation rather than restriction.
The present invention is according to dry type parallel Reactor Fault mechanism, fault signature, and the operation according to reactor is former
Reason, can be divided into by Contents for Monitoring: electric parameter, temperature field, mechanical vibration, shelf depreciation, stray field five
Direction is designed.Develop dry reactor intellectuality on-line monitoring system, it is achieved doing of multi-parameter fusion
Formula reactor on-line monitoring and fault diagnosis.
During dry anti-generation shorted-turn fault, electric parameter, winding temperature field parameters, winding mechanical vibration
Parameter, shelf depreciation parameter, stray field parameter all can occur to change accordingly, and reactor generation turn-to-turn is short
During the fault of road, the reason of these five kinds of parameters meeting respective change is respectively:
(1) electric parameter:
Its loss value of reactor of every generation shorted-turn fault is all than the loss value before shorted-turn fault
Much bigger.Therefore, accurately reactor can be judged whether according to reactor loss value (active-power P)
There occurs shorted-turn fault, but, owing to power-factor cos Φ is more more stable than active-power P, this
Invention select power-factor cos Φ as judge reactor whether occur shorted-turn fault according to permissible
Reduce wrong report and the probability failed to report to greatest extent.
(2) winding temperature field parameters:
Reactor Fault majority presentation is on fire burning, and reactor reason on fire is that turn-to-turn short circuit causes
Causing of localized hyperthermia's point retardant insulating material, because only that shorted-turn fault just can make short-circuited conducting sleeve temperature surpass
Cross the cracking temperature of insulant, cause serious hot-spot the reactor that finally ignites, parallel reactance
Device winding thermal imaging on-line monitoring unit, it can be found that the superheating phenomenon of reactor exception, gives warning in advance, keeps away
Exempt from major accident to occur.
(3) winding machinery vibration parameters:
Understanding, according to Ampere circuit law, the source that electric current is magnetic field, operating reactor winding flows through power frequency
Electric current induces power frequency magnetic field at current carrying conductor surrounding space, and current carrying conductor can be by electricity in power frequency magnetic field
The effect of power, this electrodynamic frequency is 100Hz, and electric power can make vibration of reactor, at reactor
When there is shorted-turn fault, connection loosing, vibration aggravation, Real-time Collection vibration of reactor number of the present invention
According to, it is judged that the health status of reactor.
(4) shelf depreciation parameter:
At the reactor generation shorted-turn fault initial stage, necessarily have partial discharge phenomenon and occur, shelf depreciation
Position is bound to send ultrasound wave to surrounding, and the ultrasonic signal power that shelf depreciation produces has 2 times of works
Frequently the feature of 50Hz (i.e. 100Hz), this is because the waveform of reactor turn-to-turn voltage is power frequency 50Hz
, the moment of shelf depreciation position electric discharge is often when local electric field strength is maximum, discharging time
General the most just near the crest of 1 cycle full sine wave and trough times of power-frequency voltage, i.e. one just
There is twice shelf depreciation in the string cycle (1/50=0.02s), shelf depreciation 100 times in 1 second.Therefore, originally
Invention Real-time Collection, the ultrasonic signal of analysis shunt reactor, the strong and weak change included in monitoring signal
Law meets the ultrasound wave of 100Hz feature, judges whether reactor there occurs partial discharges fault accordingly.
(5) stray field parameter:
It is concerned with when the sensor of shunt reactor stray field on-line monitoring unit is arranged on the three of isosceles triangle layout
At the symmetrical centre of formula reactor, and when dry reactor is in normal operating conditions, due to 3-phase dry type
The structure of reactor is completely the same, parameter consistent, the virtual value of terminal voltage is consistent with frequency, three phase terminals electricity
The initial phase angle of pressure is different, and phase contrast is 120 ° respectively, and the virtual value of the electric current of three-phase is consistent with frequency,
Phase contrast is 120 ° respectively.Owing to electric current is the source in magnetic field, through the lead of above-mentioned equilateral triangle center of gravity
Stray field (three-phase dry type reactor is sensed) magnetic flux density vector of any point and must on vertical line
So equal to zero vector, the vertical component of the magnetic flux density vector sum of this site is also equal to zero vector.Wearing
Cross a certain height and position horizontal direction on the plumb line of equilateral triangle center of gravity and stray field sensor be installed,
By monitoring the output voltage of stray field sensor in real time, according to output voltage whether equal to zero, can be fast
Speed effectively carries out on-line monitoring to dry reactor.
Seeing Fig. 1, the high-voltage large-capacity dry reactor that the invention provides a kind of multi-parameter fusion is online
Monitoring device, including master control room, protection room and the main control module being arranged in observing and controlling cabinet；Protection sets in room
There is electric parameter monitoring modular, described master control room is provided with monitoring server, described monitoring service
Connected alternately by order wire on device and have photoelectricity switch, described photoelectricity switch passes through fiber optic communication
There are electric parameter monitoring modular and main control module mutual connection respectively, mutual by order wire on main control module
Connect and have vibration monitoring module, partial discharge monitoring module and uneven flux monitoring module, on main control module
Connect alternately also by photoelectricity switch and have thermal imaging monitoring modular.
Concrete, described electric parameter monitoring modular includes that the voltage being arranged in 35kV protection room passes
Sensor and current sensor, voltage sensor and current sensor are all by photoelectricity switch and monitoring service
Device is connected；Described partial discharge monitoring module includes being arranged on dry reactor fiberglass high trestle top
Office put sensor, partial enlargement sensor is connected with the main control module in observing and controlling cabinet by order wire；Institute
The vibration monitoring module stated includes the vibrating sensor being arranged on dry reactor fiberglass high trestle top,
Vibrating sensor is connected with the main control module in observing and controlling cabinet by order wire；Described uneven flux monitoring mould
Block includes the stray field sensor being arranged on isosceles triangle symmetrical center line bottom, and stray field sensor is by logical
Letter line is connected with the main control module in observing and controlling cabinet；Described thermal imaging monitoring modular includes being arranged on reactor
Infrared thermoviewer at neighbouring ground, infrared thermoviewer passes through order wire and the main control module phase in observing and controlling cabinet
Even.
The optimal enforcement place of the present invention is installed with 35kV Large Copacity dry type air core shunt reactor
500kV Ultra-high Voltage Substations, and the arrangement of reactor is paperback, isosceles triangle, and reactor
It is arranged on fiberglass high trestle.
The present invention relates to a kind of by the monitoring electric parameter of high-voltage large-capacity dry reactor, winding temperature
Dry resisting is supervised by field parameters, winding machinery vibration parameters, shelf depreciation parameter, stray field parameter online
The monitoring device surveyed, the research of this device uses the integrated fault diagnosis technology of multi-parameter fusion, is running
Realize under state to dry type air core shunt reactor temperature field, electric parameter and mechanical vibration, shelf depreciation,
Stray field characteristic carries out on-line monitoring, by fault analysis diagnosis system, dry type parallel reactor is run work
Condition and fault type carry out intelligent decision making and fault pre-alarming, it is possible to the accident that is prevented effectively from occurs, it is ensured that become
Power plant safety, reliability service.
The ultimate principle of the present invention and principal character and advantages of the present invention have more than been shown and described.One's own profession
Skilled person will appreciate that of industry, the present invention is not restricted to the described embodiments, above-described embodiment and explanation
The principle that the present invention is simply described described in book, without departing from the spirit and scope of the present invention,
The present invention also has various changes and modifications, and these changes and improvements both fall within claimed invention model
In enclosing.Claimed scope is defined by appending claims and equivalent thereof.
Claims (6)
1. the high-voltage large-capacity dry reactor on-Line Monitor Device of a multi-parameter fusion, it is characterised in that
Including master control room, protection room and the main control module being arranged in observing and controlling cabinet；Protection is provided with electric parameter in room
Monitoring modular, is provided with monitoring server in described master control room, by logical on described monitoring server
Letter line connects alternately photoelectricity switch, and described photoelectricity switch is connected the most alternately by fiber optic communication
Being connected to electric parameter monitoring modular and main control module, main control module is connected alternately by order wire vibration
Monitoring modular, partial discharge monitoring module and uneven flux monitoring module, also by photoelectricity on main control module
Switch connects alternately thermal imaging monitoring modular.
The high-voltage large-capacity dry reactor on-line monitoring of multi-parameter fusion the most according to claim 1
Device, it is characterised in that described electric parameter monitoring modular includes being arranged in 35kV protection room
Voltage sensor and current sensor, voltage sensor and current sensor are all by photoelectricity switch and prison
Survey server is connected.
The high-voltage large-capacity dry reactor of multi-parameter fusion the most according to claim 1 and 2 is online
Monitoring device, it is characterised in that described partial discharge monitoring module includes being arranged on dry reactor glass
Sensor is put in the office on glass steel high trestle top, and partial enlargement sensor is by order wire and the master in observing and controlling cabinet
Control module is connected.
The high-voltage large-capacity dry reactor on-line monitoring of multi-parameter fusion the most according to claim 3
Device, it is characterised in that described vibration monitoring module includes that being arranged on dry reactor fiberglass height props up
The vibrating sensor on frame top, vibrating sensor is connected with the main control module in observing and controlling cabinet by order wire.
The high-voltage large-capacity dry reactor on-line monitoring of multi-parameter fusion the most according to claim 1
Device, it is characterised in that described uneven flux monitoring module includes being arranged on isosceles triangle symmetrical center line
The stray field sensor of bottom, stray field sensor is connected with the main control module in observing and controlling cabinet by order wire.
The high-voltage large-capacity dry reactor on-line monitoring of multi-parameter fusion the most according to claim 1
Device, it is characterised in that described thermal imaging monitoring modular includes being arranged near reactor at ground
Infrared thermoviewer, infrared thermoviewer is connected with the main control module in observing and controlling cabinet by order wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610345584.5A CN105841746A (en) | 2016-05-23 | 2016-05-23 | Multi-parameter fusion type on-line high-voltage high-capacity dry type reactor monitoring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610345584.5A CN105841746A (en) | 2016-05-23 | 2016-05-23 | Multi-parameter fusion type on-line high-voltage high-capacity dry type reactor monitoring device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108008242A (en) * | 2017-10-31 | 2018-05-08 | 中国电力科学研究院有限公司 | Dry reactor turn-to-turn fault protective device and recognition methods |
| CN109188222A (en) * | 2018-09-28 | 2019-01-11 | 云南电网有限责任公司曲靖供电局 | A kind of detection method and device of air reactor insulation fault |
| CN109669090A (en) * | 2019-02-25 | 2019-04-23 | 云南电网有限责任公司红河供电局 | Anti- defect diagnostic method is done in a kind of operation monitored based on carrier general branch electric current and neutral point voltage |
| CN113311356A (en) * | 2021-04-15 | 2021-08-27 | 西安交通大学 | High-voltage shunt reactor fault on-line monitoring method based on time-frequency characteristic association |
| CN114778987A (en) * | 2022-05-16 | 2022-07-22 | 国网四川省电力公司眉山供电公司 | Dry-type reactor fault analysis device |
| CN115032482A (en) * | 2022-06-06 | 2022-09-09 | 国网四川省电力公司眉山供电公司 | Dry-type electric reactor state detection equipment based on multiple state quantities and use method thereof |
-
2016
- 2016-05-23 CN CN201610345584.5A patent/CN105841746A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108008242A (en) * | 2017-10-31 | 2018-05-08 | 中国电力科学研究院有限公司 | Dry reactor turn-to-turn fault protective device and recognition methods |
| CN109188222A (en) * | 2018-09-28 | 2019-01-11 | 云南电网有限责任公司曲靖供电局 | A kind of detection method and device of air reactor insulation fault |
| CN109188222B (en) * | 2018-09-28 | 2020-12-29 | 云南电网有限责任公司曲靖供电局 | Method and device for detecting insulation fault of air-core reactor |
| CN109669090A (en) * | 2019-02-25 | 2019-04-23 | 云南电网有限责任公司红河供电局 | Anti- defect diagnostic method is done in a kind of operation monitored based on carrier general branch electric current and neutral point voltage |
| CN113311356A (en) * | 2021-04-15 | 2021-08-27 | 西安交通大学 | High-voltage shunt reactor fault on-line monitoring method based on time-frequency characteristic association |
| CN114778987A (en) * | 2022-05-16 | 2022-07-22 | 国网四川省电力公司眉山供电公司 | Dry-type reactor fault analysis device |
| CN114778987B (en) * | 2022-05-16 | 2023-02-28 | 国网四川省电力公司眉山供电公司 | Dry-type reactor fault analysis device |
| CN115032482A (en) * | 2022-06-06 | 2022-09-09 | 国网四川省电力公司眉山供电公司 | Dry-type electric reactor state detection equipment based on multiple state quantities and use method thereof |
| CN115032482B (en) * | 2022-06-06 | 2023-02-28 | 国网四川省电力公司眉山供电公司 | Dry-type electric reactor state detection equipment based on multiple state quantities and use method thereof |
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Application publication date: 20160810 |