CN103580292B - A kind of non-contact type electric energy transmission system for rotary steering drilling tool - Google Patents
A kind of non-contact type electric energy transmission system for rotary steering drilling tool Download PDFInfo
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- CN103580292B CN103580292B CN201210249803.1A CN201210249803A CN103580292B CN 103580292 B CN103580292 B CN 103580292B CN 201210249803 A CN201210249803 A CN 201210249803A CN 103580292 B CN103580292 B CN 103580292B
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Abstract
The present invention relates to a kind of non-contact type electric energy transmission system for rotary steering drilling tool, comprise high-frequency inverter, resolver and supply convertor; The elementary of resolver is arranged in center drill rod, is secondaryly arranged on non-rotating outer to put; High-frequency inverter is fixed in center drill rod between slurry generator and resolver, and supply convertor is arranged on electronic control unit; The low frequency three-phase ac signal that slurry generator exports is converted to high frequency single phase alternating current (A.C.) signal through high-frequency inverter, and export to the elementary of resolver, elementary and the secondary inter-stage of resolver to be coupled transferring energy by inductive electromagnetic, then exports to supply convertor by the secondary of resolver.Present invention achieves the contactless coupled transfer of electric energy from rotor to stator of rotary steering drilling tool, and meet nearly drill bit place, down-hole with the high-power power demands of boring instrument and equipment.
Description
Technical field
The present invention relates to a kind of non-contact type electric energy transmission system for rotary steering drilling tool, particularly relate to and a kind ofly realize the contactless coupled transfer of electric energy, meet nearly drill bit place, down-hole with the non-contact type electric energy transmission system for rotary steering drilling tool of high-power power demands of boring instrument and equipment.
Background technology
In prior art, domestic most oil drilling tool often adopts conventional center drilling rod formula generator to carry enough electric energy to brill instrument, and this mode exists following shortcoming: the rotating speed of center drill rod governs the output performance of drill pipe generator; Drill pipe generator output AC electricity frequency is lower, and rectification effect is poor; Generator output voltage fluctuation range is large, is difficult to wide region adapts to brill power module.And take slurry generator as the shortcoming that the drilling tool of power supply overcomes traditional approach, permanent magnet generator is driven to send alternating current with mud pressure energy, according to the feature of its body construction, need badly and a kind of novel non-contact type electric energy transmission system for rotary steering drilling tool is provided.
Summary of the invention
The technical problem to be solved in the present invention is to provide and a kind ofly realizes the contactless coupled transfer of electric energy, meets nearly drill bit place, down-hole with the non-contact type electric energy transmission system for rotary steering drilling tool of high-power power demands of boring instrument and equipment.
For solving the problems of the technologies described above, a kind of non-contact type electric energy transmission system for rotary steering drilling tool of the present invention, comprises high-frequency inverter, resolver and supply convertor; The elementary of resolver is arranged in center drill rod, is secondaryly arranged on non-rotating outer to put; High-frequency inverter is fixed in center drill rod between slurry generator and resolver, and supply convertor is arranged on electronic control unit; The low frequency three-phase ac signal that slurry generator exports is converted to high frequency single phase alternating current (A.C.) signal through high-frequency inverter, and export to the elementary of resolver, elementary and the secondary inter-stage of resolver to be coupled transferring energy by inductive electromagnetic, then exports to supply convertor by the secondary of resolver.
High-frequency inverter comprises the first current rectifying and wave filtering circuit, the first protective circuit, DCDC module, the first pwm control circuit, the first full bridge driving circuit, full-bridge circuit, and resonance compensation circuit; First current rectifying and wave filtering circuit of low frequency three-phase ac signal in high-frequency inverter that slurry generator exports is converted to direct current and exports to DCDC module, the first protective circuit and full-bridge circuit respectively; + the 15V that first pwm control circuit is produced by DCDC module powers, and sends pwm pulse control signal to the first full bridge driving circuit; First protective circuit is carried out electric current and voltage collection and computing and is formed guard signal and monitor in real time the first pwm control circuit, then closes PWM export when generation over-voltage and over-current situation; Full-bridge circuit receives the PWM drive singal exported through Amplification and insulation from the first full bridge driving circuit, successively switch control rule is carried out to full-bridge switch device, make direct current be converted to high frequency pulse AC electricity by full-bridge high-frequency forward and reverse conduction, eventually pass resonance compensation circuit and export to the elementary of resolver.
Air gap between the elementary secondary winding of resolver and magnetic core is 2mm; The coil ratio of the winding that resolver is elementary and secondary winding is 16:20.
Supply convertor comprises the second current rectifying and wave filtering circuit, the second protective circuit, soft starting circuit, the second pwm control circuit, phase-shifting full-bridge ZVS translation circuit and multi-channel DC/DC module; The high-frequency alternating current of the secondary output of resolver is converted to direct current by the second current rectifying and wave filtering circuit in supply convertor, flows to soft starting circuit, the second protective circuit, phase-shifting full-bridge ZVS translation circuit respectively; When initially powering on, the second pwm control circuit is powered by+the 15V of soft starting circuit, just 2 groups are exported after second pwm control circuit is excited, totally 4 road pwm signals, A, B road phase difference 180 degree, C, D road phase difference 180 degree, control 4 groups of switching devices of full-bridge ZVS translation circuit respectively, first 2 groups of 4 groups of switching devices is advanced arm, and latter 2 groups is lagging leg; Second protective circuit is carried out electric current and voltage collection and computing and is formed guard signal and monitor in real time the second pwm control circuit, just closes PWM export when generation over-voltage and over-current situation; After phase-shifting full-bridge ZVS translation circuit receives the drive singal exported from the second full bridge driving circuit, the leakage inductance in conjunction with paralleled power switches electric capacity and transformer makes the conducting under no-voltage successively of four groups of switching devices as resonant element; There is phase shifting angle α in the drive singal between advanced arm and lagging leg, by closed loop feedback and the PI adjustment of output voltage, regulates the size at α angle, achieve the voltage stabilizing of+48V direct current and control to export; + 48V direct current is converted to multichannel ± 15V ,+5V stable DC electricity conveying with brill instrument and hydraulic power pack by multi-channel DC/DC module again;
Supply convertor also comprises data acquisition circuit and data processing circuit; Data processing circuit is made up of 32-bit microprocessor and peripheral circuit, and the voltage and current signal come data acquisition circuit collection and other power supply running state parameters are exported to electronic control unit with the form of CAN data-signal and monitored.
Heating power components and parts in high-frequency inverter and supply convertor all adopt paster packing forms to be welded on the thick aluminium base of 1mm, and aluminium base bottom surface uniform application heat-conducting glue is close on steel body structure, and surface coating is with fixing components and parts.
The present invention proposes the high-power non-contact type electric energy transmission system for rotary steering drilling tool.Utilize electromagnetic induction principle and transformer theory, achieve the contactless coupled transfer of electric energy from rotor to stator of rotary steering drilling tool in conjunction with high-frequency inversion technology and phase-shifting full-bridge ZVS soft switch technique, and meet nearly drill bit place, down-hole with the high-power power demands of boring instrument and equipment.
The mechanical structure feature of energy good conformity rotary steering of the present invention, overcome the shortcoming that conventional contact is powered, avoid the contact problems that power supply connector exists, because it is not electrically connected, can avoid, because traditional wired formula Power supply causes leak electricity short-circuit fault, also reducing the damage to equipment at down-hole special occasions.
The present invention solves to rotating or the powerup issue of mobile device particularly working equipment in the presence of a harsh environment simultaneously, not only have a wide range of applications in field of oil drilling, simultaneously in communications and transportation, Aero-Space with also can create huge economic and social benefit under water.
The present invention adopts full-bridge type soft-switching inversion transmission technology, the low frequency three-phase ac signal exported by slurry generator controls to be converted to high frequency single phase alternating current (A.C.) signal by full bridge PWM, and application series connection resonance compensation improves system power efficiency of transmission, also improve transformer coupling coefficient simultaneously, ensure that highly reliable, low-loss delivery of electrical energy.
The present invention adopts resolver coupled transfer technology, elementary and secondary inter-stage to be coupled transferring energy electric energy by the inductive electromagnetic of non-contacting rotation loosely coupled transformer, utilizes to transmit electric energy to load by the electromagnetic coupled of air section magnetic circuit and realize from center drill rod to the electrical energy transfer of overcoat housing.
The present invention adopts phase-shifting full-bridge ZVS soft switch technique, the principle of application resonance makes the HF switch under the state of resonance of the switching device in power-supply system by resonant element, make the voltage in switching device change by sinusoidal or quasi sine rule thus reduce switching loss, improve delivery of electrical energy efficiency.
The present invention adopts aluminium base radiator structure, components' placement is compact to design, reduce volume and improve power density, fully heat energy is delivered to the external world by metal guide thermosphere, in the severe hot environment in down-hole, keep good working order, ensure that the reliability and stability of underground high-power power-supply system, also save the bulk that down-hole is limited simultaneously, make rotary steering drilling tool mature and reliable more, ensure that the success of oil drilling.
Accompanying drawing explanation
Fig. 1 is a kind of non-contact type electric energy transmission system schematic diagram for rotary steering drilling tool provided by the present invention.
Fig. 2 is the schematic diagram of the high-frequency inverter of a kind of non-contact type electric energy transmission system for rotary steering drilling tool provided by the present invention.
Fig. 3 is the schematic diagram of the supply convertor of a kind of non-contact type electric energy transmission system for rotary steering drilling tool provided by the present invention.
In figure: 1 is high-frequency inverter, 2 is resolver, 3 is supply convertor, drilling rod centered by 4, 5 is non-rotating overcoat, 6 is electronic control unit, 7 is hydraulic power pack, 8 is backup palm, 9 is the first current rectifying and wave filtering circuit, 10 is the first protective circuit, 11 is the first pwm control circuit, 12 is the first full bridge driving circuit, 13 is full-bridge circuit, 14 is DCDC module, 15 is resonance compensation circuit, 16 is the second pwm control circuit, 17 is the second full-bridge control circuit, 18 is phase-shifting full-bridge ZVS translation circuit, 19 is multi-channel DC/DC module, 20 is data acquisition circuit, 21 is data processing circuit, 22 is the second current rectifying and wave filtering circuit, 23 is the second protective circuit, 24 is soft starting circuit.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further detailed explanation.
Center drill rod 4 High Rotation Speed, non-rotating overcoat 5 supports the borehole wall because of backup palm 8, under normal circumstances, because rotating speed is very slow, thinks non-rotating overcoat 5 non rotating.
The present invention includes high-frequency inverter 1, resolver 2 and supply convertor 3; The elementary of resolver 2 is arranged in center drill rod 4, is secondaryly arranged on non-rotating overcoat 5; High-frequency inverter 1 is fixed in center drill rod 4 between slurry generator and resolver 2, and supply convertor 3 is arranged on electronic control unit 6; The low frequency three-phase ac signal that slurry generator exports is converted to high frequency single phase alternating current (A.C.) signal through high-frequency inverter 1, and export to the elementary of resolver 2, elementary and the secondary inter-stage of resolver 2 to be coupled transferring energy by inductive electromagnetic, then exports to supply convertor 3 by the secondary of resolver 2.
As shown in Figure 2, high-frequency inverter 1 comprises the first current rectifying and wave filtering circuit 9, first protective circuit 10, DCDC module 14, first pwm control circuit 11, first full bridge driving circuit 12, full-bridge circuit 13, and resonance compensation circuit 15; First current rectifying and wave filtering circuit 9 of low frequency three-phase ac signal in high-frequency inverter that slurry generator exports is converted to direct current and exports to DCDC module 14, first protective circuit 10 and full-bridge circuit 13 respectively; + the 15V that first pwm control circuit 11 is produced by DCDC module 6 powers, and send pwm pulse control signal to the first full bridge driving circuit 12, and the first protective circuit 10 is carried out electric current and voltage collection and computing and formed guard signal to the first pwm control circuit 11 and monitor in real time, just close PWM export once there is over-voltage and over-current situation; Full-bridge circuit 13 receives the PWM drive singal exported through Amplification and insulation from the first full bridge driving circuit 12, successively switch control rule is carried out to full-bridge switch device, make direct current be converted to high frequency pulse AC electricity by full-bridge high-frequency forward and reverse conduction, eventually pass the primary coil that resonance compensation circuit 15 exports to resolver.
Winding and magnetic core constitute the electromagnet portion (elementary, secondary) of resolver 2.Between winding and magnetic core, air gap is 2mm, and elementary, the secondary winding turns ratio of resolver 2 are 16:20, and input power is 300W; Accept electric energy side and be armature winding, the side exporting electric energy is secondary winding.Primary and secondary keeps relative motion state, high-frequency alternating current in armature winding produces high-frequency alternating magnetic field, the mode that the magnetic circuit consisted of primary and secondary magnetic core is responded to loose coupling is at secondary generation induced electromotive force, finally by secondary winding, high frequency ac signal is exported to supply convertor 3, achieve electric energy by the non-contact transmission of rotor to stator.
As shown in Figure 3, supply convertor 3 comprises the second current rectifying and wave filtering circuit 22, second protective circuit 23, soft starting circuit 24, second pwm control circuit 16, phase-shifting full-bridge ZVS translation circuit 18, multi-channel DC/DC module 19, data acquisition circuit 20 and data processing circuit 21; The high-frequency alternating current of secondary for resolver output is converted to direct current by the second current rectifying and wave filtering circuit 22 in supply convertor 3, flows to soft starting circuit 24, second protective circuit 23, phase-shifting full-bridge ZVS translation circuit 18 respectively; When initially powering on, the second pwm control circuit 16 is powered by+the 15V of soft starting circuit, just 2 groups of (4 tunnel) pwm signals are exported after second pwm control circuit 16 is excited, A, B road phase difference 180 degree, C, D road phase difference 180 degree, control 4 groups of switching devices (first 2 groups is advanced arm, and latter 2 groups is lagging leg) of phase-shifting full-bridge ZVS translation circuit 18 respectively; Second protective circuit 23 is carried out electric current and voltage collection and computing and is formed guard signal and monitor in real time the second pwm control circuit 16, just closes PWM export once there is over-voltage and over-current situation; After phase-shifting full-bridge ZVS translation circuit 18 receives the drive singal exported from the second full bridge driving circuit 17, the leakage inductance in conjunction with paralleled power switches electric capacity and transformer makes the conducting under no-voltage successively of four switching devices as resonant element.There is phase shifting angle α in the drive singal between advanced arm and lagging leg, by closed loop feedback and the PI adjustment of output voltage, regulates the size at α angle, achieve+48V voltage stabilizing and control to export; This+48V direct current is converted to multichannel ± 15V ,+5V stable DC electricity conveying with brill instrument and hydraulic power pack 7 by multi-channel DC/DC module 19 again.Data processing circuit 21 is made up of 32-bit microprocessor and peripheral circuit, possess high calculation processing power, the voltage and current signal gathered by data acquisition circuit 20 and other power supply running state parameters are exported to electronic control unit with the form of CAN data-signal and are monitored.
High-frequency inverter 1 all adopts paster packing forms to be welded on the thick aluminium base of 1mm with the heating power components and parts in supply convertor 3, and aluminium base bottom surface uniform application heat-conducting glue is close on steel body structure, and surface coating is with fixing components and parts.
Claims (5)
1. for a non-contact type electric energy transmission system for rotary steering drilling tool, it is characterized in that: comprise high-frequency inverter, resolver and supply convertor; The elementary of described resolver is arranged in center drill rod, is secondaryly arranged on non-rotating outer to put; High-frequency inverter is fixed in center drill rod between slurry generator and resolver, and supply convertor is arranged on electronic control unit; The low frequency three-phase ac signal that slurry generator exports is converted to high frequency single phase alternating current (A.C.) signal through high-frequency inverter, and export to the elementary of resolver, elementary and the secondary inter-stage of resolver to be coupled transferring energy by inductive electromagnetic, then exports to supply convertor by the secondary of resolver;
Described supply convertor comprises the second current rectifying and wave filtering circuit, the second protective circuit, soft starting circuit, the second pwm control circuit, phase-shifting full-bridge ZVS translation circuit and multi-channel DC/DC module; The high-frequency alternating current of the secondary output of resolver is converted to direct current by the second current rectifying and wave filtering circuit in supply convertor, flows to soft starting circuit, the second protective circuit, phase-shifting full-bridge ZVS translation circuit respectively; When initially powering on, the second pwm control circuit is powered by+the 15V of soft starting circuit, just 2 groups are exported after second pwm control circuit is excited, totally 4 road pwm signals, A, B road phase difference 180 degree, C, D road phase difference 180 degree, control 4 groups of switching devices of full-bridge ZVS translation circuit respectively, first 2 groups of described 4 groups of switching devices is advanced arm, and latter 2 groups is lagging leg; Second protective circuit is carried out electric current and voltage collection and computing and is formed guard signal and monitor in real time the second pwm control circuit, just closes PWM export when generation over-voltage and over-current situation; After phase-shifting full-bridge ZVS translation circuit receives the drive singal exported from the second full bridge driving circuit, the leakage inductance in conjunction with paralleled power switches electric capacity and transformer makes the conducting under no-voltage successively of four groups of switching devices as resonant element; There is phase shifting angle α in the drive singal between advanced arm and lagging leg, by closed loop feedback and the PI adjustment of output voltage, regulates the size at α angle, achieve the voltage stabilizing of+48V direct current and control to export; Described+48V direct current is converted to multichannel ± 15V ,+5V stable DC electricity conveying with brill instrument and hydraulic power pack by multi-channel DC/DC module again.
2. a kind of non-contact type electric energy transmission system for rotary steering drilling tool according to claim 1, it is characterized in that: described high-frequency inverter comprises the first current rectifying and wave filtering circuit, the first protective circuit, DCDC module, the first pwm control circuit, the first full bridge driving circuit, full-bridge circuit, and resonance compensation circuit; First current rectifying and wave filtering circuit of low frequency three-phase ac signal in high-frequency inverter that slurry generator exports is converted to direct current and exports to DCDC module, the first protective circuit and full-bridge circuit respectively; + the 15V that first pwm control circuit is produced by DCDC module powers, and sends pwm pulse control signal to the first full bridge driving circuit; First protective circuit is carried out electric current and voltage collection and computing and is formed guard signal and monitor in real time the first pwm control circuit, then closes PWM export when generation over-voltage and over-current situation; Full-bridge circuit receives the PWM drive singal exported through Amplification and insulation from the first full bridge driving circuit, successively switch control rule is carried out to full-bridge switch device, make direct current be converted to high frequency pulse AC electricity by full-bridge high-frequency forward and reverse conduction, eventually pass resonance compensation circuit and export to the elementary of resolver.
3. a kind of non-contact type electric energy transmission system for rotary steering drilling tool according to claim 1, is characterized in that: the air gap between the elementary secondary winding of described resolver and magnetic core is 2mm; The coil ratio of the winding that resolver is elementary and secondary winding is 16:20.
4. a kind of non-contact type electric energy transmission system for rotary steering drilling tool according to claim 1, is characterized in that: described supply convertor also comprises data acquisition circuit and data processing circuit; Data processing circuit is made up of 32-bit microprocessor and peripheral circuit, and the voltage and current signal come data acquisition circuit collection and other power supply running state parameters are exported to electronic control unit with the form of CAN data-signal and monitored.
5. a kind of non-contact type electric energy transmission system for rotary steering drilling tool according to claim 1, it is characterized in that: the heating power components and parts in described high-frequency inverter and supply convertor all adopt paster packing forms to be welded on the thick aluminium base of 1mm, aluminium base bottom surface uniform application heat-conducting glue is close on steel body structure, and surface coating is with fixing components and parts.
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| CN201210249803.1A CN103580292B (en) | 2012-07-18 | 2012-07-18 | A kind of non-contact type electric energy transmission system for rotary steering drilling tool |
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| CN201210249803.1A CN103580292B (en) | 2012-07-18 | 2012-07-18 | A kind of non-contact type electric energy transmission system for rotary steering drilling tool |
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| CN103580292B true CN103580292B (en) | 2016-01-27 |
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| CN104196451B (en) * | 2014-08-27 | 2016-04-27 | 中国石油集团长城钻探工程有限公司 | Rotary steerable drilling system |
| CN104675387A (en) * | 2014-09-15 | 2015-06-03 | 北京精密机电控制设备研究所 | Rectifier and inverter probe tube |
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| CN106351580B (en) * | 2016-08-25 | 2018-07-10 | 中国石油大学(华东) | A kind of modular electric energy and signal coupling transfer device and rotary steering drilling tool |
| CN106300702B (en) * | 2016-11-04 | 2018-11-23 | 北京恒泰万博石油技术股份有限公司 | Non-contact electric energy transmission system and its application in the rotary steering mechanism of underground |
| CN108199490A (en) * | 2018-01-03 | 2018-06-22 | 中国石油集团西部钻探工程有限公司 | Signal and power transfer outer ring and guiding pipe nipple |
| CN108599813A (en) * | 2018-05-30 | 2018-09-28 | 中国计量大学 | A kind of contactless energy and signal transmission slip ring |
| CN109888929A (en) * | 2019-03-06 | 2019-06-14 | 大连理工大学 | A kind of wireless power supply system to object rotary motion electrical equipment |
| CN110847820B (en) * | 2019-11-20 | 2021-09-17 | 中国石油天然气集团有限公司 | While-drilling signal and power supply short transmission system for rotary steering tool |
| CN111679138B (en) * | 2020-05-29 | 2021-09-17 | 中国石油天然气集团有限公司 | Performance evaluation test platform and method for non-contact transmission system |
| CN113131624A (en) * | 2021-04-22 | 2021-07-16 | 北京机械设备研究所 | Wireless power supply device for vehicle-carrying turret |
| CN113550731A (en) * | 2021-06-03 | 2021-10-26 | 四川宏华电气有限责任公司 | Electric control system of cluster well drilling machine |
| CN113783406A (en) * | 2021-08-18 | 2021-12-10 | 西安航空制动科技有限公司 | Square wave alternating current power supply system with fixed frequency |
| CN114017013B (en) * | 2021-10-29 | 2022-12-09 | 中国石油天然气集团有限公司 | Coupling mechanism longitudinal deviation resistance parameter optimization method suitable for drilling working conditions |
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