CN108900136A - A kind of multiphase Frac unit electric driving control system - Google Patents
A kind of multiphase Frac unit electric driving control system Download PDFInfo
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- CN108900136A CN108900136A CN201810858264.9A CN201810858264A CN108900136A CN 108900136 A CN108900136 A CN 108900136A CN 201810858264 A CN201810858264 A CN 201810858264A CN 108900136 A CN108900136 A CN 108900136A
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- phase
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
- H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
- H02P27/06—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters
- H02P27/08—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters with pulse width modulation
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Multiple Motors (AREA)
Abstract
The invention belongs to the drive areas of pressure break pump group in shale gas exploitation, specially a kind of multiphase Frac unit electric driving control system, including ring network cabinet, phase-shifting transformer, frequency converter and 9 phase motors, ring network cabinet introduces high-voltage electricity from power grid, the secondary three phase rectifier winding of at least two voltage ratings and an auxiliary secondary winding are converted to by phase-shifting transformer, winding is rectified to inverter supply, frequency converter exports 3 groups of three-phase alternating current electric drives, one 9 phase motor by inversion and drives pressure break plunger pump work；Auxiliary secondary winding is responsible for powering to control cabinet, MCC cabinet, transformer blower fan and Cooling Air-conditioning System, and MCC cabinet is responsible for external lubricating oil circulating pump, the power supply of lubricating oil cooling blower；The logic judgment of control cabinet is used for after ring network cabinet, transformer blower fan, 9 phase motor status infomation detections.The discharge amount of the present invention nitrogen oxides almost nil compared with common diesel/natural gas engine and oxycarbide, environmental protection；Also, Energy Consumption Cost is reduced, operating cost is low.
Description
Technical field
The invention belongs to the drive area of pressure break pump group in shale gas exploitation, specially a kind of multiphase Frac unit electric drive
Control system.
Background technique
For pressure break pump group as the Core equipment in shale gas exploitation, Investment portion accounts for shale gas exploitation equipment total value
25%~30%, its quality, efficiency and operating cost will directly affect shale gas exploitation cost, determine shale gas exploitation into
Journey.In addition, oil field needs to put into a large amount of human and material resources when carrying out fracture job, so that increased production cost in oil field.Research and development
Massive hydraulic fracturing corollary equipment plays an important role to raising site operation level with quality control capability.Traditional fracturing unit truck is generally adopted
The driving form for driving fracturing pump by fluid torque-converter or gearbox with engine, realizes the stepless change under high-power large torque
Speed and then driving plunger pump movement.
Summary of the invention
The present invention is to realize the effective way of low-pressure high-power transmission using polyphase machine drive system.
The present invention adopts the following technical scheme that realization：A kind of multiphase Frac unit electric driving control system, including
Ring network cabinet, phase-shifting transformer, frequency converter and 9 phase motors, ring network cabinet introduce high-voltage electricity from power grid, are converted to by phase-shifting transformer
The secondary three phase rectifier winding of at least two voltage ratings and an auxiliary secondary winding rectify winding to inverter supply, frequency conversion
Device exports 3 groups of three-phase alternating current electric drives, one 9 phase motor by inversion and drives pressure break plunger pump work；Secondary winding is assisted to be responsible for
It powers to control cabinet, MCC cabinet, transformer blower fan and Cooling Air-conditioning System, MCC cabinet is responsible for external lubricating oil circulating pump, lubricating oil heat dissipation
Cooling blower power supply；The logic judgment of control cabinet is used for after ring network cabinet, transformer blower fan, 9 phase motor status infomation detections.
A kind of above-mentioned multiphase Frac unit electric driving control system, frequency converter include three groups of inverters and phase-shifting transformer
Secondary side rectifies the identical rectifier of winding quantity, and each rectifier is connect with phase-shifting transformer secondary side rectification winding respectively,
Rectifier exports common DC bus voltage, and the input of three groups of inverters is all connected on common DC bus.
A kind of above-mentioned multiphase Frac unit electric driving control system, control cabinet include three power module control panels, often
A power module control panel all includes dsp board, I O board, fibre optic plate, signal deteching circuit；I O board connection signal detection circuit, letter
Number detection circuit has the function of current measurement, voltage measurement, tachometric survey, tachometric survey conversion, pile defection；Dsp board is realized
All Frequency conversion controls, direct torque, flux observation calculate；The pwm pulse that DSP is calculated in fibre optic plate, passes through optical fiber
It is sent to IGBT drive circuit plate, IGBT drive circuit plate drives inverter work, three power module controls inside control cabinet
Between plate, the transmission of data is realized by CAN-Open bus and receives system command, and is timely feedbacked accordingly to host computer
Power-balance between data information, realization transformer.
A kind of above-mentioned multiphase Frac unit electric driving control system, the three power module control panels in control cabinet inside are divided into
Master & slave control plate, i.e. frequency converter use master-slave control method, can effectively realize the control to 9 phase motors, avoid due to output
Error causes equipment damage.
A kind of above-mentioned multiphase Frac unit electric driving control system, further includes PLC main control cabinet, PLC main control cabinet can
It is communicated to connect the relay, indicator light, DCS system of all outsides, between control cabinet and PLC main control cabinet and carries out data
Transmission and command reception.
Technical solution of the present invention bring has the beneficial effect that：
1. use high-voltage fence power supply, the nitrogen oxides almost nil compared with common diesel/natural gas engine and oxycarbide
Discharge amount, environmental protection；Also, Energy Consumption Cost is reduced, operating cost theory saves 50%；High-power electric drive fracturing pump can have
Effect reduces well site occupied area, reduces development cost；50% is improved compared with diesel oil fracturing unit truck operating efficiency；Reduce Frac unit work
When noise, be reduced to 95 decibels by 110 decibels of conventional diesel pressure break, work comfort increases.
2. realizing low-pressure high-power transmission using polyphase machine drive system.In multiphase power drive system, because reducing
Voltage and the electric current increased is assigned in increased phase winding, at this point, the middle high-power inverter in drive system can be adopted
It can be achieved with the power device of estimated current grade, while also avoiding flowing caused by selecting low current power device in parallel
Problem.Moreover, realizing that the high-power power device series that also avoid connect bring static state and dynamic voltage balancing problem using low pressure.
3. system global reliability improves.Due to number of phases redundancy, when the motor or multiphase in polyphase machine drive system
One phase of inverter can be disconnected when even several phases break down, system still can load shedding operation without stopping.Although increasing
The number of phases is added theoretically to improve the probability of system jam, but after breaking down, drive system remains to work on, reliably
Property improve.
4. torque pulsation reduces, the dynamic and static characteristic of system is improved.Since number of motor phases increases, output torque pulsation reduction, arteries and veins
Dynamic frequency increases, so drive system low-speed characteristic is very significantly improved, vibration and noise is greatly reduced.
Detailed description of the invention
Fig. 1 is main electrical principle topological diagram.
Fig. 2 is control system block diagram of the present invention.
Specific embodiment
In conjunction with attached drawing, the present invention is explained in detail.
Fig. 1 is main electrical principle topological diagram, as shown, being linked into after ring network cabinet using the external high-voltage electricity that provides
One phase-shifting transformer.The secondary side output 1 of phase-shifting transformer prolongs side Δ secondary side winding for totally 4.Respectively not by diode
After control rectification, common DC bus is exported.For each inverter bridge, the DC power supply after rectification is filtered by capacitor, inversion
Bridge totally 3 bridge arms, for realizing the output voltage of two level.9 bridge arms of three inverter bridges export 9 phases and composition altogether altogether
One 9 phase inverter device, for driving 9 phase inverter motors.
Frequency converter exports three road three-phase PWM waves, and the amplitude of every road PWM wave is identical, and frequency is identical, and phase can freely be set
It sets：Frequency converter controls 9 bridge arms as a whole, generates the PWM waveform on every road, and 9 bridge arms are grouped, adopt
It with master & slave control, suitable solution can require automatically, and have phase-deficient operation function, when breaking down, can automatically switch
Control mode, it is ensured that motor safety.
Frequency converter control panel is connected with power cell using optical fiber, and signal interference and loss are reduced；Frequency converter can be supported
Three winding, the asynchronous motor control with phase difference；Frequency converter uses master-slave control method, can effectively realize to 9 phase motors
Control, avoids causing equipment damage due to output error；Control needs optical fiber to connect between the frequency converter control panel of each winding,
Data exchange is carried out, realizes phase controlling.
Fig. 2 is control system block diagram of the present invention, as shown, the height that Frac unit electric driving control system is introduced from power grid
Piezoelectricity is converted to the auxiliary secondary winding of 4 voltage ratings secondary three phase rectifier winding and a 400V by phase-shifting transformer,
Winding is rectified to inverter supply.Inverter input adds reactor.Frequency converter exports 3 groups of three-phase alternating currents by inversion
One 9 phase motor of driving drive pressure break plunger pump work；Auxiliary secondary winding be responsible for control cabinet, MCC cabinet, transformer blower fan,
Cooling Air-conditioning System and the power supply of PLC main control cabinet, MCC cabinet are responsible for the power supply such as external lubricating oil circulating pump, lubricating oil cooling blower；
The logic judgment of control cabinet, control cabinet and PLC main control are used for after ring network cabinet, transformer blower fan, 9 phase motor status infomation detections
Carried out data transmission and command reception between cabinet by communication.
Using 9 phase motors can will reduce voltage and increased electric current is assigned in increased winding, avoid select it is small
The problems such as being flowed caused by power device is in parallel.Meanwhile 9 phase motor be equivalent in the number of phases and done redundancy, can also be with when phase shortage
Subtract function operation.
Frequency converter is mainly used for control 9 phase motors of driving in system, and frequency converter is not controlled diode rectification using 24 pulse waves, is total to
DC bus scheme.4 groups of rectified side of threephase AC electric energy rectifier bridge is rectified into direct current, using common DC bus scheme, puts down
Weighed the DC bus-bar voltage of frequency converter, and equipment starting also reduces the impact of power grid and electrical equipment accordingly when stopping, can
To realize frequent start-stop.
Control cabinet includes three power module control panels, and each power module control panel includes dsp board, I O board, optical fiber
Plate, signal deteching circuit；There is current measurement, voltage measurement, revolving speed to survey for I O board connection signal detection circuit, signal deteching circuit
Amount, tachometric survey conversion, pile defection function；Dsp board realizes that all Frequency conversion controls, direct torque, flux observation calculate；
The pwm pulse that DSP is calculated in fibre optic plate is sent to IGBT drive circuit plate, three power inside control cabinet by optical fiber
Between module control panel, the transmission of data is realized by CAN-Open bus and receives system command, and is anti-in time to host computer
It presents corresponding data information, realize the power-balance between transformer.
PLC main control cabinet can connect relay, indicator light, DCS system Hard link of all outsides etc.；In order to realize pair
The monitoring of frequency converter, frequency converter itself are furnished with touch display screen, are communicated between each frequency converter and control cabinet.
Claims (5)
1. a kind of multiphase Frac unit electric driving control system, it is characterised in that including ring network cabinet, phase-shifting transformer, frequency converter and
9 phase motors, ring network cabinet introduce high-voltage electricity from power grid, it is whole to be converted to the secondary three-phase of at least two voltage ratings by phase-shifting transformer
Winding and an auxiliary secondary winding are flowed, rectification winding exports 3 groups of three-phase alternating currents by inversion to inverter supply, frequency converter
One 9 phase motor of driving drive pressure break plunger pump work；Auxiliary secondary winding be responsible for control cabinet, MCC cabinet, transformer blower fan and
Cooling Air-conditioning System power supply, MCC cabinet are responsible for external lubricating oil circulating pump, the power supply of lubricating oil cooling blower；Ring network cabinet, transformer wind
The logic judgment of control cabinet is used for after machine, 9 phase motor status infomation detections.
2. a kind of multiphase Frac unit electric driving control system according to claim 1, it is characterised in that frequency converter includes
Three groups of inverters and the identical rectifier of phase-shifting transformer secondary side rectification winding quantity, each rectifier respectively with phase shift transformation
Device secondary side rectifies winding connection, and rectifier exports common DC bus voltage, and the input of three groups of inverters is all connected to total direct current
On bus.
3. a kind of multiphase Frac unit electric driving control system according to claim 1 or 2, it is characterised in that control cabinet packet
Three power module control panels are included, each power module control panel includes dsp board, I O board, fibre optic plate, signal deteching circuit；
I O board connection signal detection circuit, signal deteching circuit have current measurement, voltage measurement, tachometric survey, tachometric survey conversion,
Pile defection function；Dsp board realizes that all Frequency conversion controls, direct torque, flux observation calculate；Fibre optic plate calculates DSP
Obtained pwm pulse is sent to IGBT drive circuit plate by optical fiber, inside control cabinet between three power module control panels,
The transmission of data is realized by CAN-Open bus and receives system command, and timely feedbacks corresponding data letter to host computer
Power-balance between breath, realization transformer.
4. a kind of multiphase Frac unit electric driving control system according to claim 3, it is characterised in that inside control cabinet
Three power module control panels are divided into master & slave control plate, i.e. frequency converter uses master-slave control method, can effectively realize to 9 phases electricity
The control of machine avoids causing equipment damage due to output error.
5. a kind of multiphase Frac unit electric driving control system according to claim 1 or 2, it is characterised in that further include
PLC main control cabinet, PLC main control cabinet can connect the relay, indicator light, DCS system of all outsides, control cabinet and PLC master
Carried out data transmission and command reception between control cabinet by communication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810858264.9A CN108900136A (en) | 2018-07-31 | 2018-07-31 | A kind of multiphase Frac unit electric driving control system |
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|---|---|---|---|
| CN201810858264.9A CN108900136A (en) | 2018-07-31 | 2018-07-31 | A kind of multiphase Frac unit electric driving control system |
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| CN108900136A true CN108900136A (en) | 2018-11-27 |
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| CN201810858264.9A Pending CN108900136A (en) | 2018-07-31 | 2018-07-31 | A kind of multiphase Frac unit electric driving control system |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110155193A (en) * | 2019-06-13 | 2019-08-23 | 烟台杰瑞石油装备技术有限公司 | A kind of electricity drive pressure break power supply semitrailer |
| CN110725673A (en) * | 2019-10-29 | 2020-01-24 | 中车永济电机有限公司 | Six-phase fracturing unit electric drive control system |
| WO2020211086A1 (en) * | 2019-04-19 | 2020-10-22 | 烟台杰瑞石油装备技术有限公司 | Dual-motor dual-pump electric drive fracturing semi-trailer |
| WO2022088424A1 (en) * | 2020-10-29 | 2022-05-05 | 青岛中加特电气股份有限公司 | Vehicle-mounted direct-current power supply apparatus and fracturing system |
| US11492887B2 (en) | 2019-06-13 | 2022-11-08 | Yantai Jereh Petroleum Equipment & Technologies Co., Ltd. | Power supply semi-trailer for electric drive fracturing equipment |
| WO2023087516A1 (en) * | 2021-11-16 | 2023-05-25 | 烟台杰瑞石油装备技术有限公司 | Fracturing apparatus and activation method therefor, and fracturing apparatus set |
| US11677238B2 (en) | 2021-04-26 | 2023-06-13 | Yantai Jereh Petroleum Equipment & Technologies Co., Ltd. | Electric power supply method and electric power supply system |
| US11680474B2 (en) | 2019-06-13 | 2023-06-20 | Yantai Jereh Petroleum Equipment & Technologies Co., Ltd. | Fracturing apparatus and control method thereof, fracturing system |
| WO2023137980A1 (en) * | 2022-01-18 | 2023-07-27 | 烟台杰瑞石油装备技术有限公司 | Multi-winding motor driving system, variable-frequency electric drive system, pumping system, fracturing device, and well site device |
| US11725491B2 (en) | 2021-09-22 | 2023-08-15 | Yantai Jereh Petroleum Equipment & Technologies Co., Ltd. | Electrically driven fracturing system |
| US11746636B2 (en) | 2019-10-30 | 2023-09-05 | Yantai Jereh Petroleum Equipment & Technologies Co., Ltd. | Fracturing apparatus and control method thereof, fracturing system |
| US11955782B1 (en) | 2022-11-01 | 2024-04-09 | Typhon Technology Solutions (U.S.), Llc | System and method for fracturing of underground formations using electric grid power |
| US12021389B2 (en) | 2021-10-12 | 2024-06-25 | Yantai Jereh Petroleum Equipment & Technologies Co., Ltd. | Power supply system for electrically driven wellsite facility |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020211086A1 (en) * | 2019-04-19 | 2020-10-22 | 烟台杰瑞石油装备技术有限公司 | Dual-motor dual-pump electric drive fracturing semi-trailer |
| US11680474B2 (en) | 2019-06-13 | 2023-06-20 | Yantai Jereh Petroleum Equipment & Technologies Co., Ltd. | Fracturing apparatus and control method thereof, fracturing system |
| WO2020248373A1 (en) * | 2019-06-13 | 2020-12-17 | 烟台杰瑞石油装备技术有限公司 | Electric drive fracturing power supply semi-trailer |
| CN110155193A (en) * | 2019-06-13 | 2019-08-23 | 烟台杰瑞石油装备技术有限公司 | A kind of electricity drive pressure break power supply semitrailer |
| US11492887B2 (en) | 2019-06-13 | 2022-11-08 | Yantai Jereh Petroleum Equipment & Technologies Co., Ltd. | Power supply semi-trailer for electric drive fracturing equipment |
| CN110155193B (en) * | 2019-06-13 | 2023-11-28 | 烟台杰瑞石油装备技术有限公司 | Electrically driven fracturing power supply semitrailer |
| CN110725673A (en) * | 2019-10-29 | 2020-01-24 | 中车永济电机有限公司 | Six-phase fracturing unit electric drive control system |
| CN110725673B (en) * | 2019-10-29 | 2022-06-14 | 中车永济电机有限公司 | Six-phase fracturing unit electric drive control system |
| US11746636B2 (en) | 2019-10-30 | 2023-09-05 | Yantai Jereh Petroleum Equipment & Technologies Co., Ltd. | Fracturing apparatus and control method thereof, fracturing system |
| WO2022088424A1 (en) * | 2020-10-29 | 2022-05-05 | 青岛中加特电气股份有限公司 | Vehicle-mounted direct-current power supply apparatus and fracturing system |
| US11677238B2 (en) | 2021-04-26 | 2023-06-13 | Yantai Jereh Petroleum Equipment & Technologies Co., Ltd. | Electric power supply method and electric power supply system |
| US11725491B2 (en) | 2021-09-22 | 2023-08-15 | Yantai Jereh Petroleum Equipment & Technologies Co., Ltd. | Electrically driven fracturing system |
| US12021389B2 (en) | 2021-10-12 | 2024-06-25 | Yantai Jereh Petroleum Equipment & Technologies Co., Ltd. | Power supply system for electrically driven wellsite facility |
| WO2023087516A1 (en) * | 2021-11-16 | 2023-05-25 | 烟台杰瑞石油装备技术有限公司 | Fracturing apparatus and activation method therefor, and fracturing apparatus set |
| WO2023137980A1 (en) * | 2022-01-18 | 2023-07-27 | 烟台杰瑞石油装备技术有限公司 | Multi-winding motor driving system, variable-frequency electric drive system, pumping system, fracturing device, and well site device |
| US11955782B1 (en) | 2022-11-01 | 2024-04-09 | Typhon Technology Solutions (U.S.), Llc | System and method for fracturing of underground formations using electric grid power |
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Application publication date: 20181127 |