CN204230917U - Group wells oil pumping/mechanism of qi local reactive power compensation independent protective control device - Google Patents
Group wells oil pumping/mechanism of qi local reactive power compensation independent protective control device Download PDFInfo
- Publication number
- CN204230917U CN204230917U CN201420710282.XU CN201420710282U CN204230917U CN 204230917 U CN204230917 U CN 204230917U CN 201420710282 U CN201420710282 U CN 201420710282U CN 204230917 U CN204230917 U CN 204230917U
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- China
- Prior art keywords
- power
- oil pumping
- detecting unit
- contactor
- insulated gate
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
Abstract
The utility model discloses a kind of group wells oil pumping/mechanism of qi local reactive power compensation independent protective control device, comprise digital signal controller, static reacance generator, insulated gate bipolar translator power tube driver, power control unit, grid power detecting unit; Digital signal controller signal input part is connected with described grid power detecting unit signal output part, and digital signal controller output control terminal is connected with the input control end of power control unit, insulated gate bipolar translator power tube driver 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 mains switch, and the other end of each power contactor moving contact connects with corresponding motor power input respectively.The utility model advantage is to possess the separately protected function to each oil pumping/mechanism of qi in group wells, reduces and even eliminates because of oil pumping/mechanism of qi Ka Jing, stall, overvoltage, the motor frequent breakage caused such as under-voltage.
Description
Technical field
The utility model relates to the oil pumping/mechanism of qi compensation of oil (gas) field, protective device, especially relates to group wells oil pumping/mechanism of qi local reactive power compensation independent protective control device.
Background technology
At present, oil/gas field group wells ubiquity, because wire is thin, pump 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 pump 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 operation area mains ripple of oil/gas field result also in greatly Electric capacity compensation device controller and often occurs that exiting protection runs and lose compensating action.Because pump distribution in oil/gas field comparatively disperses, reactive power loss is on the line very large, and centralized compensation can not solve the idle loss problem caused.Meanwhile, oil/gas field pump is directly connected with common frequency power network, and motor starts the very large impulse current of generation instantaneously, the frequent starting of motor has very large infringement to motor and oil pumping/mechanism of qi, and is all heavy load starting, easily burns 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 pump to install a soft initiator cost high, waste is serious, and utilization rate of equipment and installations is low, safeguards complicated.Group wells electric control system is mainly made up of threephase asynchronous and control circuit, and just on-off action, does not have electric motor protective device, often occurs burning out motor because of Ka Jing, stall, overcurrent etc. in running, and motor damage rate is very high.
Summary of the invention
The utility model object is to provide a kind of group wells oil pumping/mechanism of qi local reactive power compensation independent protective control device.
For achieving the above object, the utility model takes following technical proposals:
Group wells oil pumping/mechanism of qi local reactive power compensation independent protective control device described in the utility model, comprise by Master control chip DSP28335 and extend out the digital signal controller that A/D chip AD7656 and man-machine interface form, static reacance generator, insulated gate bipolar translator power tube driver, power control unit, grid power detecting unit; Described digital signal controller signal input part is connected with described grid power detecting unit signal output part, and digital signal controller output control terminal is connected with the input control end of power control unit, insulated gate bipolar translator power tube driver respectively; Described power control unit is made up of multiple power contactor QF1 ~ QFn, moving contact one end of described each power contactor QF1 ~ QFn is all connected with mains switch QS, and the other end of each power contactor QF1 ~ QFn moving contact connects with corresponding motor M1 ~ Mn 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 QF0 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 QS by described three-phase reactor L, control contactor QF0 moving contact.
Described grid power detecting unit is made up of the first grid power detecting unit and the second grid power detecting unit; Described first grid power detecting unit is by the electrical network parameter detecting element TA1 be arranged on described group wells oil pumping/mechanism of qi M1 ~ Mn power bus road, and the electrical network parameter detecting element TA2 be arranged on described static reacance generator power circuit forms; Described second grid power detecting unit forms by being arranged on electrical network parameter detecting element TA3 ~ TAn that each oil pumping/mechanism of qi M1 ~ Mn powers on branch line;
The utility model advantage is to carry out reactive power compensation by static reacance generator to group wells oil pumping/mechanism of qi power bus road, it exports reactive current ability and does not rely on line voltage, therefore voltage characteristic is good, can when line voltage is low effective output reactive power, effectively reduce line loss.And the separately protected function possessed each oil pumping/mechanism of qi in group wells, reduces and even eliminates because of oil pumping/mechanism of qi Ka Jing, stall, overvoltage, the motor frequent breakage that causes such as under-voltage and the impact that causes oil/gas real estate amount because of shutdown.
Accompanying drawing explanation
Fig. 1 is circuit principle structure block diagram of the present utility model.
Embodiment
As shown in Figure 1, group wells oil pumping/mechanism of qi local reactive power compensation independent protective control device described in the utility model, comprise by Master control chip DSP28335 and extend out the digital signal controller 1 that A/D chip AD7656 and man-machine interface form, static reacance generator 2, insulated gate bipolar translator power tube driver 3, power control unit 4, grid power detecting unit; Described digital signal controller 1 signal input part is connected with described grid power detecting unit signal output part, and digital signal controller 1 output control terminal is connected with the input control end of power control unit 4, insulated gate bipolar translator power tube driver 3 respectively; Described power control unit 4 is made up of multiple power contactor QF1 ~ QFn, moving contact one end of described each power contactor QF1 ~ QFn is all connected with mains switch QS, and the other end of each power contactor QF1 ~ QFn moving contact connects with corresponding motor M1 ~ Mn power input respectively.The three-phase full-controlled rectifier bridge that described static reacance generator 2 is made up of six insulated gate bipolar translator power tubes, three-phase reactor L, control contactor QF0 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 3, and the power input of three-phase full-controlled rectifier bridge is connected with described mains switch QS by described three-phase reactor L, control contactor QF0 moving contact.
Described grid power detecting unit is made up of the first grid power detecting unit 5.1 and the second grid power detecting unit 5.2; Described first grid power detecting unit 5.1 is by the electrical network parameter detecting element TA1 be arranged on described group wells oil pumping/mechanism of qi M1 ~ Mn power bus road, and the electrical network parameter detecting element TA2 be arranged on described static reacance generator 2 power circuit forms; Described second grid power detecting unit 5.2 forms by being arranged on electrical network parameter detecting element TA3 ~ TAn that each oil pumping/mechanism of qi M1 ~ Mn powers on branch line.
Claims (3)
1. a group wells oil pumping/mechanism of qi local reactive power compensation independent protective control device, comprises digital signal controller, static reacance generator, insulated gate bipolar translator power tube driver, power control unit, grid power detecting unit; It is characterized in that: described digital signal controller signal input part is connected with described grid power detecting unit signal output part, and digital signal controller output control terminal is connected with the input control end of power control unit, insulated gate bipolar translator power tube driver 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 mains switch, and the other end of each power contactor moving contact connects with corresponding motor power input respectively.
2. group wells oil pumping/mechanism of qi local reactive power compensation independent protective 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.
3. group wells oil pumping/mechanism of qi local reactive power compensation independent protective control device according to claim 1 and 2, is characterized in that: described grid power detecting unit is made up of the first grid power detecting unit and the second grid power detecting unit; Described first grid power detecting unit by the electrical network parameter detecting element be arranged on described group wells oil pumping/mechanism of qi power bus road, and is arranged on the electrical network parameter detecting element composition on described static reacance generator power circuit; Described second grid power detecting unit forms by being arranged on the electrical network parameter detecting element that each oil pumping/mechanism of qi powers on branch line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420710282.XU CN204230917U (en) | 2014-11-24 | 2014-11-24 | Group wells oil pumping/mechanism of qi local reactive power compensation independent protective control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420710282.XU CN204230917U (en) | 2014-11-24 | 2014-11-24 | Group wells oil pumping/mechanism of qi local reactive power compensation independent protective control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204230917U true CN204230917U (en) | 2015-03-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420710282.XU Expired - Fee Related CN204230917U (en) | 2014-11-24 | 2014-11-24 | Group wells oil pumping/mechanism of qi local reactive power compensation independent protective control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204230917U (en) |
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2014
- 2014-11-24 CN CN201420710282.XU patent/CN204230917U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151207 Address after: 450000 Henan city of Zhengzhou province high tech Industrial Development Zone, Stone Town Stone Village Village No. 228 East Patentee after: Henan Ennaiji Electric Co., Ltd. Address before: 450044, Henan province Zhengzhou Cultural Road and Kaiyuan Road intersection animation industry base B block 9 floor Patentee before: Henan Energy Electric Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150325 Termination date: 20191124 |
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| CF01 | Termination of patent right due to non-payment of annual fee |