CN205785301U - A kind of high-voltage large-capacity dry reactor on-Line Monitor Device of multi-parameter fusion - Google Patents

A kind of high-voltage large-capacity dry reactor on-Line Monitor Device of multi-parameter fusion Download PDF

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Publication number
CN205785301U
CN205785301U CN201620474826.6U CN201620474826U CN205785301U CN 205785301 U CN205785301 U CN 205785301U CN 201620474826 U CN201620474826 U CN 201620474826U CN 205785301 U CN205785301 U CN 205785301U
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China
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monitoring
main control
control module
reactor
sensor
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CN201620474826.6U
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Inventor
王斌
董捷
钱江
毛晋生
陈军潮
王民
孟刚
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XI'AN XINDONGYUAN ELECTRIC Co Ltd
Yuncheng Power Supply Co of State Grid Shanxi Electric Power Co Ltd
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XI'AN XINDONGYUAN ELECTRIC Co Ltd
Yuncheng Power Supply Co of State Grid Shanxi Electric Power Co Ltd
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Abstract

The utility model discloses the high-voltage large-capacity dry reactor on-Line Monitor Device of a kind 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 in room; master control room is provided with monitoring server; connected alternately by order wire on monitoring server and have photoelectricity switch; connected the most alternately by fiber optic communication on photoelectricity switch and have electric parameter monitoring modular and main control module; connected alternately by order wire on main control module and have vibration monitoring module, partial discharge monitoring module and uneven flux monitoring module, main control module connects alternately also by photoelectricity switch and has thermal imaging monitoring modular.This device realizes dry type air core shunt reactor temperature field, electric parameter and mechanical vibration, shelf depreciation, stray field characteristic are carried out on-line monitoring under operation, it is possible to the accident that is prevented effectively from occurs, it is ensured that substation safety, reliability service.

Description

A kind of high-voltage large-capacity dry reactor on-Line Monitor Device of multi-parameter fusion
Technical field
This utility model belongs to dry anti-monitoring device technical field, particularly relates to the height of a kind of multi-parameter fusion Pressure Large Copacity 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.
Utility model content
This utility model solves the problem in that the high-voltage large-capacity dry type reactance providing a kind of multi-parameter fusion Device on-Line Monitor Device, it is possible to the accident that is prevented effectively from occurs, it is ensured that substation safety, reliability service.
This utility model 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, this utility model has a following useful technique effect:
The high-voltage large-capacity dry reactor on-Line Monitor Device of the multi-parameter fusion that this utility model provides, The research of this device uses the integrated fault diagnosis technology of multi-parameter fusion, realizes under operation dry Formula hollow shunt reactor temperature field, electric parameter and mechanical vibration, shelf depreciation, stray field characteristic are entered Row on-line monitoring, by fault analysis diagnosis system to dry type parallel reactor operating 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 substation safety, can By running.
Accompanying drawing explanation
The high-voltage large-capacity dry reactor on-line monitoring of the multi-parameter fusion that Fig. 1 provides for this utility model Apparatus structure schematic diagram.
Detailed description of the invention
Below in conjunction with specific embodiment, this utility model is described in further detail, described in be to this The explanation of utility model rather than restriction.
This utility model is according to dry type parallel Reactor Fault mechanism, fault signature, according to the fortune of reactor Row principle, can be divided into by Contents for Monitoring: electric parameter, temperature field, mechanical vibration, shelf depreciation, stray field Five directions are designed.Develop dry reactor intellectuality on-line monitoring system, it is achieved multi-parameter fusion Dry 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 Utility model selects power-factor cos Φ as judging whether reactor occurs the foundation of shorted-turn fault Wrong report and the probability failed to report can be reduced 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, this utility model Real-time Collection reactor shakes Dynamic data, 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 Utility model Real-time Collection, analyze shunt reactor ultrasonic signal, monitoring signal included in strong Weak Changing Pattern meets the ultrasound wave of 100Hz feature, judges whether reactor there occurs shelf depreciation accordingly Fault.
(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, this utility model provides the high-voltage large-capacity dry reactor of a kind of multi-parameter fusion On-Line Monitor Device, including master control room, protection room and the main control module being arranged in observing and controlling cabinet;Protection room In be provided with electric parameter monitoring modular, described master control room is provided with monitoring server, described monitoring Connected alternately by order wire on server and have photoelectricity switch, described photoelectricity switch passes through optical fiber There are electric parameter monitoring modular and main control module communication mutual connection respectively, and main control module passes through order wire There are vibration monitoring module, partial discharge monitoring module and uneven flux monitoring module, master control mould mutual connection Connect alternately also by photoelectricity switch on block 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 this utility model is to be 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 reactance Device is arranged on fiberglass high trestle.
This utility model relates to a kind of by the monitoring electric parameter of high-voltage large-capacity dry reactor, winding Dry resisting is carried out by temperature field parameter, winding machinery vibration parameters, shelf depreciation parameter, stray field parameter The monitoring device of line monitoring, the research of this device uses the integrated fault diagnosis technology of multi-parameter fusion, Realize under running status dry type air core shunt reactor temperature field, electric parameter and mechanical vibration, locally Electric discharge, stray field characteristic carry out on-line monitoring, by fault analysis diagnosis system to dry type parallel reactor Operating 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, Ensure substation safety, reliability service.
Of the present utility model ultimate principle and principal character and of the present utility model excellent have more than been shown and described Point.Skilled person will appreciate that of the industry, this utility model is not restricted to the described embodiments, above-mentioned Principle of the present utility model is simply described, without departing from this utility model described in embodiment and description On the premise of spirit and scope, this utility model also has various changes and modifications, these changes and improvements In the range of both falling within claimed this utility model.This utility model claims scope by appended power Profit claim and equivalent thereof define.

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.
CN201620474826.6U 2016-05-23 2016-05-23 A kind of high-voltage large-capacity dry reactor on-Line Monitor Device of multi-parameter fusion Active CN205785301U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110941897A (en) * 2019-11-11 2020-03-31 南方电网科学研究院有限责任公司 Dry-type air-core reactor thermal field analysis method and device and storage medium

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110941897A (en) * 2019-11-11 2020-03-31 南方电网科学研究院有限责任公司 Dry-type air-core reactor thermal field analysis method and device and storage medium

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