CN102694371B - Intelligent protection dry-type air-core reactor and control method thereof - Google Patents
Intelligent protection dry-type air-core reactor and control method thereof Download PDFInfo
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- CN102694371B CN102694371B CN201210192487.9A CN201210192487A CN102694371B CN 102694371 B CN102694371 B CN 102694371B CN 201210192487 A CN201210192487 A CN 201210192487A CN 102694371 B CN102694371 B CN 102694371B
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Abstract
Intelligent protection dry-type air-core reactor of the present invention, comprises dry-type air-core reactor, temperature sensor, voltage transformer, current transformer, signal pickup assembly, electromagnetic induction power supply and protecting control device; Temperature sensor gathers the local temperature signal of dry-type air-core reactor coil encapsulation, voltage transformer gathers the voltage change signal of dry-type air-core reactor coil encapsulation, current transformer gathers the current changing signal of dry-type air-core reactor coil encapsulation, the various live signals that signal pickup assembly receiving sensor transmits, and each signal is converted to prefabricated formatted data, send protecting control device to; The real time data that protecting control device Received signal strength harvester sends, when reaching critical parameters value, export corresponding control signal to vacuum circuit-breaker and blower fan, the present invention operationally can complete the monitoring of self-operating state.Also comprise a kind of control method of described dry-type air-core reactor.
Description
Technical field
The present invention relates to a kind of reactor and control method, particularly relate to a kind of dry-type air-core reactor and control method.
Background technology
At present, dry-type air-core reactor has that noise is low, the inductance linearity is good, without advantages such as magnetic saturation, important function in reactive power compensation and maintaining plays in system voltage stabilizes, but the relaying protection of dry-type air-core reactor is insoluble problem always.By to the analysis of lot of accident and investigation, the inner fault such as winding operating temperature superelevation and turn-to-turn short circuit of dry-type air-core reactor, is all find after discovery dense smoke or naked light, then takes manual operation, fault reactance device is excised, and at this moment whole reactor is ablated very serious.
The problem of relaying protection cannot be realized for solving dry-type air-core reactor; need to carry out Real-Time Monitoring to dry-type air-core reactor operating temperature and winding inter-turn situation; respective handling measure is made in time when abnormal conditions appear in equipment; the safe operation of support equipment; avoid accident to expand further, cause larger economic loss.
The service data collection using traditional signal pickup assembly to complete dry-type air-core reactor also has certain difficulty, signal pickup assembly operationally needs to be equipped with independent power supply, because dry-type air-core reactor has leakage field, therefore common power cannot normally work.During dry-type air-core reactor generation turn-to-turn short circuit, because impedance variation is very little, general overcurrent protection also cannot make accurate judgement, is excised by reactor in time, often causes serious consequence.
Summary of the invention
The object of this invention is to provide a kind of Intelligent protection dry-type air-core reactor, solve dry-type air-core reactor running status and cannot obtain the technical problem causing carrying out relaying protection in time to dry-type air-core reactor in real time.
Another object of the present invention is to provide a kind of control method of above-mentioned Intelligent protection dry-type air-core reactor, solves the ND technical problem of turn-to-turn short circuit.
Intelligent protection dry-type air-core reactor of the present invention, comprises dry-type air-core reactor, wherein: also comprise temperature sensor, voltage transformer, current transformer, signal pickup assembly, electromagnetic induction power supply and protecting control device;
Temperature sensor, for gathering the local temperature signal of dry-type air-core reactor coil encapsulation, is sent to signal pickup assembly by temperature signal;
Voltage transformer, for gathering the voltage change signal of dry-type air-core reactor coil encapsulation, is sent to signal pickup assembly by voltage signal;
Current transformer, for gathering the current changing signal of dry-type air-core reactor coil encapsulation, is sent to signal pickup assembly by current signal;
Signal pickup assembly, for the various live signals that receiving sensor transmits, and is converted to prefabricated formatted data by each signal, sends protecting control device to;
Electromagnetic induction power supply, utilizes the working power of electromagnetic induction generation for signal pickup assembly in dry-type air-core reactor magnetic field;
Protecting control device, for the real time data that Received signal strength harvester sends, contrasts with the reference data preset, when reaching critical parameters value, exports corresponding control signal to vacuum circuit-breaker and blower fan, preserves data and is used for accident analysis.
Also comprise the first radio receiving transmitting module, the second radio receiving transmitting module; the data output end of signal pickup assembly is connected with the data input pin of the first radio receiving transmitting module, and the data output end of the second radio receiving transmitting module is connected with the data input pin of protecting control device.
Described temperature sensor at least comprises one, and temperature sensor is distributed on dry-type air-core reactor, is wound in reactor insulating barrier outer surface by alkali-free glass fiber cloth.
Two terminals of described voltage transformer be connected in parallel respectively dry-type air-core reactor into and out of line terminals place; Described current transformer is connected in series in the end of incoming cables of dry-type air-core reactor.
Carry out the method controlled according to described Intelligent protection dry-type air-core reactor, comprise the following steps:
Described dry-type air-core reactor brings into operation;
Temperature sensor gathers each position local temperature signal, voltage transformer gathers reactor voltage variable signal, current transformer gathers reactor current variable signal;
Each sensor signal of Real-time Collection is wirelessly sent to protecting control device by signal pickup assembly;
Sensor signal is converted to the phase data of temperature data, voltage and electric current when dry-type air-core reactor runs by protecting control device, compares with setup parameter;
When dry-type air-core reactor operating temperature is more than the first set point, then protecting control device transmits control signal startup blower fan;
When dry-type air-core reactor operating temperature is more than the second set point, then protecting control device transmits control signal startup vacuum circuit-breaker, is excised by dry-type air-core reactor from circuit.
Also comprise the steps:
Protecting control device flows through the phase difference of dry-type air-core reactor voltage and electric current by calculating, form the loss value of reactor, when loss value exceedes loss set point, starts vacuum circuit-breaker, is excised by dry-type air-core reactor from circuit.
Intelligent protection dry-type air-core reactor of the present invention operationally can complete the monitoring of self-operating state, judgement, in time to upper equipment and the next equipment transmission of signal and data, reduce breakdown loss.
Utilize control method of the present invention, for different installation environments and load, can form fault detection method targetedly, Timeliness coverage fault type, determines fault rate, for system provides necessary control device.
Adopt Wireless Data Transmission mode, connection cable quantity and wiring complexity can be reduced, make transducer installation position more reasonable.
Below in conjunction with accompanying drawing, embodiments of the invention are described further.
Accompanying drawing explanation
Fig. 1 is the structural representation of Intelligent protection dry-type air-core reactor of the present invention;
Fig. 2 is the circuit connection diagram of Intelligent protection dry-type air-core reactor of the present invention.
Embodiment
Intelligent protection dry-type air-core reactor of the present invention utilizes different transducers to gather real-time voltage, the current changing signal of dry-type air-core reactor, and temperature changing trend, utilizes way of electromagnetic induction to obtain the working power of transducer simultaneously; The live signal of collection is carried out monitoring process by the concentrated protecting control device 31 that is sent to of signal pickup assembly 21; when reaching the critical parameter value of setting; protecting control device 31 sends corresponding control signal to vacuum circuit-breaker 41, blower fan 42, completes heat radiation and the relaying protection of dry-type air-core reactor.
As shown in Figure 1, Intelligent protection dry-type air-core reactor of the present invention comprises dry-type air-core reactor 01, temperature sensor 11, voltage transformer 12, current transformer 13, signal pickup assembly 21, electromagnetic induction power supply 22 and protecting control device 31.
Dry-type air-core reactor 01, comprise upper and lower starframe, coil encapsulation and epoxy support, form reactor body by upper and lower starframe and coil encapsulation, by epoxy support, signal pickup assembly 21 and electromagnetic induction power supply 22 are fixed on star top of the trellis on reactor;
Temperature sensor 11, for gathering the local temperature signal of dry-type air-core reactor 01 coil encapsulation, is sent to signal pickup assembly 21 by temperature signal;
Voltage transformer 12, for gathering the voltage change signal of dry-type air-core reactor 01 coil encapsulation, is sent to signal pickup assembly 21 by voltage signal;
Current transformer 13, for gathering the current changing signal of dry-type air-core reactor 01 coil encapsulation, is sent to signal pickup assembly 21 by current signal;
Signal pickup assembly 21, for the various live signals that receiving sensor transmits, and is converted to prefabricated formatted data by each signal, sends protecting control device 31 to;
Electromagnetic induction power supply 22, utilizes the working power of electromagnetic induction generation for signal pickup assembly 21 in dry-type air-core reactor 01 magnetic field;
Protecting control device 31, for the real time data that Received signal strength harvester 21 sends, contrasts with the reference data preset, when reaching critical parameters value, exports corresponding control signal to vacuum circuit-breaker 41 and blower fan 42, preserves data and is used for accident analysis.
As shown in Figure 2, Intelligent protection dry-type air-core reactor of the present invention comprises several temperature sensors 11, temperature sensor 11 is distributed in reactor body, be wound in reactor insulating barrier outer surface by alkali-free glass fiber cloth (11a), the signal output part of temperature sensor 11 is connected with the corresponding signal input of signal pickup assembly 21 by feeder line;
Two of voltage transformer 12 terminals are connected in parallel respectively dry-type air-core reactor into and out of line terminals place; Current transformer 13 is connected in series in the end of incoming cables of dry-type air-core reactor, the signal output part of voltage transformer 12 summation current transformer 13 is connected with the corresponding signal input of signal pickup assembly 21 by feeder line;
Electromagnetic induction power supply 22 be placed in dry-type air-core reactor starframe center, top, be in dry-type air-core reactor magnetic field, the power input of the power output end connection signal harvester 21 of electromagnetic induction power supply 22;
The first radio receiving transmitting module 21a is also comprised in the present invention, second radio receiving transmitting module 31a, the data output end of signal pickup assembly 21 is connected with the data input pin of the first radio receiving transmitting module 21a, the data output end of the second radio receiving transmitting module 31a is connected with the data input pin of protecting control device 31, the data processed through signal pickup assembly 21 are wirelessly sent to protecting control device 31 and receive, make protecting control device 31 can as far as possible close to controlled device, signal pickup assembly 21 is tried one's best approach signal transducer, improve circuit reliability, feeder line is avoided to connect chaotic, occur that accidental short circuit causes data corruption.
Vacuum circuit-breaker 41 is placed in reactor inlet wire side, and blower fan 42 is placed in bottom reactor winding.
In the application, the phase signal of temperature signal, voltage and electric current when Intelligent protection dry-type air-core reactor of the present invention runs is sent to protecting control device 31 by signal pickup assembly 21 in real time by each transducer and judges, if dry-type air-core reactor operating temperature is more than the first set point, then protecting control device 31 transmits control signal and starts blower fan 42; Rise above the second set point as continued, then protecting control device 31 transmits control signal and starts vacuum circuit-breaker 41, is excised by dry-type air-core reactor from circuit.Or protecting control device 31 flows through the phase difference of dry-type air-core reactor voltage and electric current by calculating; calculate to obtain the loss value of reactor; and judge whether dry-type air-core reactor turn-to-turn short circuit occurs by the change of loss value; as dry-type air-core reactor generation turn-to-turn short circuit; then protecting control device 31 transmits control signal and starts vacuum circuit-breaker 41, is excised by dry-type air-core reactor 01 from circuit.
Above-described embodiment is only be described the preferred embodiment of the present invention; not scope of the present invention is limited; under not departing from the present invention and designing the prerequisite of spirit; the various distortion that those of ordinary skill in the art make technical scheme of the present invention and improvement, all should fall in protection range that claims of the present invention determines.
Claims (2)
1. an Intelligent protection dry-type air-core reactor, comprise dry-type air-core reactor (01), also comprise temperature sensor (11), voltage transformer (12), current transformer (13), signal pickup assembly (21), electromagnetic induction power supply (22) and protecting control device (31);
Temperature sensor (11), for gathering the local temperature signal of dry-type air-core reactor (01) coil encapsulation, is sent to signal pickup assembly (21) by temperature signal;
Voltage transformer (12), for gathering the voltage change signal of dry-type air-core reactor (01) coil encapsulation, is sent to signal pickup assembly (21) by voltage signal;
Current transformer (13), for gathering the current changing signal of dry-type air-core reactor (01) coil encapsulation, is sent to signal pickup assembly (21) by current signal;
Signal pickup assembly (21), for the various live signals that receiving sensor transmits, and is converted to prefabricated formatted data by each signal, sends protecting control device (31) to;
Electromagnetic induction power supply (22), utilizes the electromagnetic induction in dry-type air-core reactor (01) magnetic field to produce the working power being used for signal pickup assembly (21);
Protecting control device (31), for the real time data that Received signal strength harvester (21) sends, contrast with the reference data preset, when reaching critical parameters value, export corresponding control signal to vacuum circuit-breaker (41) and blower fan (42), preserve data and be used for accident analysis; Also comprise the first radio receiving transmitting module (21a), the second radio receiving transmitting module (31a), the data output end of signal pickup assembly (21) is connected with the data input pin of the first radio receiving transmitting module (21a), and the data output end of the second radio receiving transmitting module (31a) is connected with the data input pin of protecting control device (31); It is characterized in that:
Described temperature sensor (11) at least comprises one, temperature sensor (11) is distributed on dry-type air-core reactor (01), be wound in reactor insulating barrier outer surface by alkali-free glass fiber cloth (11a), described signal pickup assembly (21) is fixed on the upper star top of the trellis of dry-type air-core reactor by epoxy support, described electromagnetic induction power supply (22) be placed in dry-type air-core reactor starframe center, top, described blower fan (42) is placed in bottom reactor winding;
Two terminals of described voltage transformer (12) be connected in parallel respectively dry-type air-core reactor into and out of line terminals place; Described current transformer (13) is connected in series in the end of incoming cables of dry-type air-core reactor (01), described vacuum circuit-breaker 41 is placed between dry-type air-core reactor (01) end of incoming cables and described current transformer (13).
2. Intelligent protection dry-type air-core reactor according to claim 1 carries out the method that controls, it is characterized in that comprising the following steps:
Described dry-type air-core reactor brings into operation;
Temperature sensor (11) gathers each position local temperature signal, voltage transformer (12) gathers reactor voltage variable signal, current transformer (13) gathers reactor current variable signal;
Each sensor signal of Real-time Collection is wirelessly sent to protecting control device (31) by signal pickup assembly (21);
Sensor signal is converted to the phase data of temperature data, voltage and electric current when dry-type air-core reactor runs by protecting control device (31), compares with setup parameter;
When dry-type air-core reactor operating temperature is more than the first set point, then protecting control device (31) transmits control signal and starts blower fan (42);
When dry-type air-core reactor operating temperature is more than the second set point, then protecting control device (31) transmits control signal and starts vacuum circuit-breaker (41), is excised by dry-type air-core reactor from circuit;
Protecting control device (31) flows through the phase difference of dry-type air-core reactor voltage and electric current by calculating; form the loss value of reactor; when loss value exceedes loss set point; determine turn-to-turn short circuit; start vacuum circuit-breaker (41), dry-type air-core reactor (01) is excised from circuit.
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| CN201210192487.9A CN102694371B (en) | 2012-06-12 | 2012-06-12 | Intelligent protection dry-type air-core reactor and control method thereof |
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| CN201210192487.9A CN102694371B (en) | 2012-06-12 | 2012-06-12 | Intelligent protection dry-type air-core reactor and control method thereof |
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| CN102694371B true CN102694371B (en) | 2015-10-28 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104242239B (en) * | 2014-09-22 | 2017-07-28 | 云南电网公司电力科学研究院 | A kind of dry type parallel reactor protection method monitored based on temperature, temperature rise |
| CN104267662B (en) * | 2014-10-17 | 2017-01-25 | 云南电网公司电力科学研究院 | Automatic feedback control system for temperature shock of buffering dry type electric reactor |
| EP3776780A1 (en) * | 2018-05-17 | 2021-02-17 | Siemens Energy Global GmbH & Co. KG | Method and device for identifying an inter-turn short circuit in parallel windings |
| CN110716094A (en) * | 2018-07-12 | 2020-01-21 | 国网山东省电力公司菏泽供电公司 | Online intelligent monitoring system for electric power high-voltage dry-type air-core reactor |
| CN109387734B (en) * | 2018-12-25 | 2021-01-26 | 哈尔滨理工大学 | Monitoring method of dry-type air-core power reactor turn-to-turn short circuit fault on-line monitoring device |
| CN114002626A (en) * | 2021-11-02 | 2022-02-01 | 国网河南省电力公司检修公司 | Dry-type reactor turn-to-turn short circuit fault emergency processing device |
| CN114062821A (en) * | 2021-11-17 | 2022-02-18 | 国网重庆市电力公司电力科学研究院 | Dry-type reactor fault analysis method based on electric power intelligent cruise robot |
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Denomination of invention: Intelligent-protection-type dry-type air-core reactor and control method thereof Effective date of registration: 20190924 Granted publication date: 20151028 Pledgee: Rizhao bank Limited by Share Ltd. Yantai branch Pledgor: SHANDONG HADA ELECTRIC Co.,Ltd. Registration number: Y2019370010020 |
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Date of cancellation: 20221104 Granted publication date: 20151028 Pledgee: Rizhao bank Limited by Share Ltd. Yantai branch Pledgor: SHANDONG HADA ELECTRIC Co.,Ltd. Registration number: Y2019370010020 |
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Denomination of invention: Intelligent protection type dry air core reactor and its control method Effective date of registration: 20221118 Granted publication date: 20151028 Pledgee: Rizhao bank Limited by Share Ltd. Yantai branch Pledgor: SHANDONG HADA ELECTRIC Co.,Ltd. Registration number: Y2022980022473 |
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