CN204230906U - Oil gas field group wells soft start Time-sharing control device - Google Patents

Oil gas field group wells soft start Time-sharing control device Download PDF

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Publication number
CN204230906U
CN204230906U CN201420710292.3U CN201420710292U CN204230906U CN 204230906 U CN204230906 U CN 204230906U CN 201420710292 U CN201420710292 U CN 201420710292U CN 204230906 U CN204230906 U CN 204230906U
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CN
China
Prior art keywords
power
soft start
soft
control unit
contactor
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Expired - Fee Related
Application number
CN201420710292.3U
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Chinese (zh)
Inventor
武伟伟
彭红超
王斌斌
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HENAN ENERGY ELECTRIC CO Ltd
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HENAN ENERGY ELECTRIC CO Ltd
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Priority to CN201420710292.3U priority Critical patent/CN204230906U/en
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E40/00Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/30Reactive power compensation

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  • Motor And Converter Starters (AREA)
  • Rectifiers (AREA)

Abstract

The utility model discloses a kind of oil gas field group wells soft start Time-sharing control device, comprise digital signal controller, soft initiator, static reacance generator, insulated gate bipolar translator power tube driver, soft start control unit, power control unit, grid power detecting unit; Digital signal controller signal input part is connected with the signal output part of grid power detecting unit and soft initiator respectively, and digital signal controller output control terminal is connected with the input control end of soft initiator, soft start control unit, power control unit, insulated gate bipolar translator power tube driver respectively.The utility model advantage is that employing described soft initiator realizes the multiple motors soft start of group wells, take Time-sharing control soft start oil pumping/mechanism of qi equipment, avoid taking out oil/gas equipment start simultaneously bring drag down line voltage phenomenon, thus reach and reduce the low line loss that causes of oil gas field transmission line power factor and voltage drop, also improve oil gas field electrical network end power quality simultaneously.

Description

Oil gas field group wells soft start Time-sharing control device
Technical field
The utility model relates to oil gas field reactive power compensator, especially relates to oil gas field group wells soft start Time-sharing control device.
Background technology
At present, oil gas field group wells ubiquity, because wire is thin, oil pumping/mechanism of qi runs reactive power change and causes reactive compensation capacity not foot phenomenon soon, causes electric power system line loss excessive.For the oil gas field of some supply line head, also there is the problem that terminal voltage is low.Because oil pumping/mechanism of qi bearing power has the advantages that excursion is large, pace of change is fast, make current Electric capacity compensation device used there is the slow deficiency of response speed, cause frequent overcompensation or undercompensation, switching is frequent, large to electrical network impact, Electric capacity compensation device is short for useful life.The mains ripple of oilfield operation district result also in greatly Electric capacity compensation device controller and often occurs that exiting protection runs and lose compensating action.Because the distribution of oil gas field oil pumping/mechanism of qi comparatively disperses, reactive power loss is on the line very large, and centralized compensation can not solve the idle loss problem caused.Simultaneously, oil gas field oil pumping/mechanism of qi is directly connected with common frequency power network, motor starts the very large impulse current of generation instantaneously, the frequent starting of motor has very large infringement to motor and oil pumper, and be all heavy load starting, easily burn out motor, also certainly will drag down line voltage instantaneously, affect grid stability.Use soft initiator to start and greatly can reduce starting current, if but every platform oil gas field oil pumping/mechanism of qi to install a soft initiator cost high, waste is serious, and utilization rate of equipment and installations is low, safeguards complexity.
Summary of the invention
The utility model object is to provide a kind of oil gas field group wells soft start Time-sharing control device.
For achieving the above object, the utility model takes following technical proposals:
Oil gas field group wells soft start Time-sharing control device described in the utility model, comprises digital signal controller (Master control chip DSP28335), soft initiator, static reacance generator, insulated gate bipolar translator power tube driver, soft start control unit, power control unit, grid power detecting unit (detection of grid reactive power, active power, voltage and current signal); Described digital signal controller sampled signal input is connected with the signal output part of described grid power detecting unit and soft initiator respectively, and digital signal controller output control terminal is connected with the input control end of soft initiator, soft start control unit, power control unit, insulated gate bipolar translator power tube driver respectively; Described soft start control unit is made up of multiple soft start contactor KM1 ~ KMn controlled by digital signal controller, moving contact one end of described each soft start contactor is all connected with mains switch by soft initiator, and the other end of each soft start contactor moving contact connects with corresponding motor power input respectively; Described power control unit is made up of multiple power contactor 1KM ~ nKM, moving contact one end of described each power contactor is all connected with described mains switch, and the other end of each power contactor moving contact connects with corresponding motor power input respectively.
The three-phase full-controlled rectifier bridge that described static reacance generator is made up of six insulated gate bipolar translator power tubes, three-phase reactor L, control contactor QF are formed; The control end of described three-phase full-controlled rectifier bridge is connected with the output control terminal of described insulated gate bipolar translator power tube driver, and the power input of three-phase full-controlled rectifier bridge is connected with described mains switch by the moving contact of described three-phase reactor L, control contactor QF.
The utility model advantage is that employing described soft initiator realizes the multiple motors soft start of group wells, take Time-sharing control soft start oil pumping/mechanism of qi equipment, avoid taking out oil/gas equipment start simultaneously bring drag down line voltage phenomenon, thus reach and reduce the low line loss that causes of oil gas field transmission line power factor and voltage drop, also improve oil gas field electrical network end power quality simultaneously, reduce and take out oil/gas equipment electrical damage rate object.
Accompanying drawing explanation
Fig. 1 is circuit principle structure block diagram of the present utility model.
Embodiment
As shown in Figure 1, oil gas field group wells soft start Time-sharing control device described in the utility model, comprises digital signal controller 1(Master control chip DSP28335), soft initiator 2, static reacance generator 3, insulated gate bipolar translator power tube driver 4, soft start control unit 5, power control unit 6, grid power detecting unit 7(detection of grid reactive power, active power, voltage and current signal); Described digital signal controller 1 sampled signal input is connected with the signal output part of described grid power detecting unit 7 and soft initiator 2 respectively, and digital signal controller 1 output control terminal is connected with the input control end of soft initiator 2, soft start control unit 5, power control unit 6, insulated gate bipolar translator power tube driver 4 respectively; Described soft start control unit 5 is made up of multiple soft start contactor KM1 ~ KMn controlled by digital signal controller 1, interlocks, only have the action of a soft start contactor when namely soft start control unit 5 works between described each soft start contactor KM1 ~ KMn.Moving contact one end of described each soft start contactor is all connected with mains switch 8 by soft initiator 2, and the other end of each soft start contactor moving contact connects with corresponding motor (one in M1 ~ Mn) power input respectively; Described power control unit 6 is made up of multiple power contactor 1KM ~ nKM, the soft start contactor interlocking that described each power contactor is all corresponding with soft start control unit 3.Moving contact one end of each power contactor is all connected with described mains switch 8, and the other end of each power contactor moving contact connects with corresponding motor power input respectively.The three-phase full-controlled rectifier bridge that described static reacance generator 3 is made up of six insulated gate bipolar translator power tubes, three-phase reactor L, control contactor QF are formed; The control end of described three-phase full-controlled rectifier bridge is connected with the output control terminal of described insulated gate bipolar translator power tube driver 4, and the power input of three-phase full-controlled rectifier bridge is connected with described mains switch 8 by the moving contact of described three-phase reactor L, control contactor QF.
Utility model works principle is summarized as follows:
The utility model realizes the soft start of multiple motors in group wells by a soft initiator 2, and the power of soft initiator 2 only needs according to respectively taking out motor capacity coupling maximum in oil/gas equipment in described group wells, and do not need to be equipped with according to total motor capacity sums of taking out oil/gas equipment all in group wells, greatly reduce the power of soft initiator 2, saved and controlled cost.
Interlock between each soft start contactor KM1 ~ KMn in soft start control unit 5, namely only there is the action of a soft start contactor when soft start control unit 5 works, this ensures that there in group wells and only have one to take out oil/gas equipment in multiple motors to carry out soft start by soft initiator 2.
The bypass branch of a soft start control unit 5 is provided after each motor M1 ~ Mn that the power contactor 1KM ~ nKM in power control unit 6 is correspondence normally starts, a soft start contactor KM1 ~ KMn corresponding with soft start control unit 3 interlocks, to ensure that power contactor 1KM ~ nKM can not action simultaneously with corresponding soft start contactor KM1 ~ KMn.
The reactive power of grid power detecting unit 7 detection of grid, active power, voltage and current signal also deliver to digital signal controller 1, digital signal controller 1 exports to insulated gate bipolar translator power tube driver 4 according to the signal collected after SPWM computing, thus control the on off state of each insulated gate bipolar translator power tube, three-phase commutation bridge is exported and the idle reactive current matched of load, reaches real-Time Compensation and take out the idle object of oil/gas equipment.
Digital signal controller 1 can be taken out oil/gas equipment to each and carry out sequence number setting sequence starting, and interval setting start-up time when order is run.

Claims (2)

1. an oil gas field group wells soft start Time-sharing control device, comprises digital signal controller, soft initiator, static reacance generator, insulated gate bipolar translator power tube driver, soft start control unit, power control unit, grid power detecting unit; It is characterized in that: described digital signal controller signal input part is connected with the signal output part of described grid power detecting unit and soft initiator respectively, and digital signal controller output control terminal is connected with the input control end of soft initiator, soft start control unit, power control unit, insulated gate bipolar translator power tube driver respectively; Described soft start control unit is made up of multiple soft start contactor controlled by digital signal controller, moving contact one end of described each soft start contactor is all connected with mains switch by soft initiator, and the other end of each soft start contactor moving contact connects with corresponding motor power input respectively; Described power control unit is made up of multiple power contactor, and moving contact one end of described each power contactor is all connected with described mains switch, and the other end of each power contactor moving contact connects with corresponding motor power input respectively.
2. oil gas field group wells soft start Time-sharing control device according to claim 1, is characterized in that: the three-phase full-controlled rectifier bridge that described static reacance generator is made up of six insulated gate bipolar translator power tubes, three-phase reactor, control contactor are formed; The control end of described three-phase full-controlled rectifier bridge is connected with the output control terminal of described insulated gate bipolar translator power tube driver, and the power input of three-phase full-controlled rectifier bridge is connected with described mains switch by described three-phase reactor, control contactor moving contact.
CN201420710292.3U 2014-11-24 2014-11-24 Oil gas field group wells soft start Time-sharing control device Expired - Fee Related CN204230906U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420710292.3U CN204230906U (en) 2014-11-24 2014-11-24 Oil gas field group wells soft start Time-sharing control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420710292.3U CN204230906U (en) 2014-11-24 2014-11-24 Oil gas field group wells soft start Time-sharing control device

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CN204230906U true CN204230906U (en) 2015-03-25

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109798094A (en) * 2018-10-16 2019-05-24 中电华恒(南京)能源产业研究院有限公司 A kind of energy-saving method for oil pumping unit based on timing control

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109798094A (en) * 2018-10-16 2019-05-24 中电华恒(南京)能源产业研究院有限公司 A kind of energy-saving method for oil pumping unit based on timing control

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150325

Termination date: 20151124