CN109802580B

CN109802580B - High-power direct-current voltage-stabilized power supply for petroleum drilling tool

Info

Publication number: CN109802580B
Application number: CN201910177366.9A
Authority: CN
Inventors: 魏晓东; 李志广; 王眉山; 张东旭; 李德鸿; 陈大祺
Original assignee: China Petroleum Group Oilfield Technical Service Co Ltd; China National Petroleum Corp; China Petroleum Logging Co Ltd
Current assignee: China Petroleum Group Oilfield Technical Service Co Ltd; China National Petroleum Corp; China Petroleum Logging Co Ltd
Priority date: 2019-03-08
Filing date: 2019-03-08
Publication date: 2020-02-14
Anticipated expiration: 2039-03-08
Also published as: CN109802580A

Abstract

The invention relates to a high-power direct-current stabilized power supply for an intelligent petroleum drilling tool, which comprises a rectification module, a main power supply module, an auxiliary power supply module, a regulation and control module, a high-frequency inversion module and a stabilized voltage output module, wherein the rectification module is connected with the main power supply module and the auxiliary power supply module, the auxiliary power supply module is connected with the main power supply module and the regulation and control module, the main power supply module is connected with the high-frequency inversion module, and the high-frequency inversion module is connected with the stabilized voltage. The wireless transmission of electric energy between short circuits of the intelligent petroleum drilling tool is realized by adopting the modes of series-parallel connection of the switch modules, design of a load balancing circuit and a protection circuit, arrangement of an overvoltage protection circuit, an undervoltage protection circuit, a load protection circuit and the like, and the safety and stability of the intelligent drilling tool in underground work are ensured.

Description

High-power direct-current voltage-stabilized power supply for petroleum drilling tool

Technical Field

The invention belongs to the technical field of petroleum and natural gas drilling, and particularly relates to a high-power direct-current stabilized power supply for an intelligent petroleum drilling tool.

Background

Petroleum is one of important energy sources and plays an important role in the development of economic society. The well drilling technology is a powerful support for oil exploitation, and particularly the automatic intelligent well drilling technology has become the development center of gravity of the oil well drilling technology. Along with the development and application of various intelligent drilling tools, the intelligent drilling tools such as rotary steering and vertical drilling are widely applied and popularized. The tool establishes ground and well bottom bidirectional data communication through a remote wireless communication technology, information such as well bottom direction, posture, pressure, temperature and the like is uploaded to the ground, ground operators adjust the working state of the tool in real time according to drilling design and well bottom working conditions, instructions are transmitted to a well bottom intelligent drilling tool from the ground, an instruction receiving system of the intelligent drilling tool demodulates and analyzes the instructions transmitted on the ground, and an execution mechanism is driven to complete response operation. The whole process needs to provide stable and durable electric energy supply for the intelligent drilling tool, and the development requirement of the underground high-power supply is increasingly urgent for realizing the driving of the control execution mechanism and the carrying of the power type load.

The current underground power supply can be roughly divided into two types, one type is that the power supply is carried out by adopting a mud pulse to carry out alternating current-direct current conversion mode, the power supply mode can provide stable and continuous direct current electric energy and meet the power consumption requirement of a core device of an intelligent drilling tool, but the power supply realization mode has the defects that a single power supply module is difficult to realize the high-power supply requirement, and the load balance problem among modules is difficult to solve by adopting a multi-power module combined working mode; the other mode is that a battery is adopted for power supply, and a high-temperature lithium battery pack is widely applied to measurement type downhole tools with low power consumption, such as MWD (measurement while drilling), electronic pressure gauges and the like, but for intelligent downhole tools with driving execution modules, such as rotary steering, vertical drilling and the like, the battery power supply mode is limited by capacity and volume, and is difficult to be practically applied to the intelligent downhole tools.

In addition, the intelligent well drilling tool is usually composed of a plurality of functional short circuits, power supply and communication among different short circuits are usually in a wired mode, and a plurality of defects and hidden dangers exist in the aspects of assembly connection of the short circuits, safety and stability in the using process.

Therefore, the high-power direct-current stabilized voltage power supply for the intelligent drilling tool is researched, the requirement of the intelligent drilling tool such as rotary steering and vertical drilling on a high-power underground power supply is met, wireless power transmission among different short circuits of the intelligent drilling tool is realized, and the high-power direct-current stabilized voltage power supply has important significance and application value.

Disclosure of Invention

In view of this, the present invention is directed to a high power dc regulated power supply for an intelligent drilling tool, so as to achieve continuous and stable power supply during the drilling process of the intelligent drilling tool.

In order to achieve the purpose, the technical scheme of the invention is realized as follows:

a high-power direct-current stabilized power supply for an intelligent drilling tool comprises a rectifying module 10, a main power supply module 20, an auxiliary power supply module 30, a regulating module 40, a high-frequency inversion module 50 and a stabilized voltage output module 60. The rectification module 10 is connected to the main power module 20 and the auxiliary power module 30, the auxiliary power module 30 is connected to the main power module 20 and the regulation and control module 40, the main power module 20 is connected to the high-frequency inversion module 50, and the high-frequency inversion module 50 is connected to the regulated output module 60. The rectifying module 10 is used for converting three-phase alternating current energy generated by the mud turbine generator into coarse direct current energy, the main power supply module 20 is used for converting the coarse direct current energy output by the rectifying module 10 into stable 36V/10A direct current energy for output, the auxiliary power supply module 30 is used for converting the coarse direct current energy output by the rectifying module 10 into stable 10V/2A direct current energy for output, the regulating and controlling module 40 is used for providing required direct current energy by the auxiliary power supply module 30, the regulating and controlling module 40 is used for performing overvoltage and undervoltage protection on the main power supply module 20 and the auxiliary power supply module and realizing load balance of the main power supply module 20, a primary winding and a secondary winding of the high-frequency inverter module 50 are respectively installed on adjacent short-circuit of an intelligent drilling tool and used for wireless transmission of the direct current energy, the voltage stabilizing output module 60 is configured to convert the high-frequency alternating electric energy output by the secondary coil of the high-frequency inverter module 50 into a stable 36V direct-current electric energy for output.

Further, the main power module further includes switch modules 1 to 8 and transformer modules 1 to 8, each of the switch modules and the transformer modules are a group and have the same circuit structure, wherein the switch modules 1 to 8 are respectively connected to the transformers 1 to 8, the switch module 1, the transformer 1, the switch module 2, and the transformer 2 are connected in series, the switch module 3, the transformer 3, the switch module 4, and the transformer 4 are connected in series, the switch module 5, the transformer 5, the switch module 6, and the transformer 6 are connected in series, the switch module 7, the transformer 7, the switch module 8, and the transformer 8 are connected in series, and the switch module 1, the transformer 1, the switch module 2, the transformer 2, and the switch module 3, the transformer 2 are connected in series, The transformer 3, the switch module 4, the transformer 4 and the switch module 5, the transformer 5, the switch module 6, the transformer 6 and the switch module 7, the transformer 7, the switch module 8, the transformer 8 are connected in parallel.

Further, the regulation module 40 further includes: load balancing modules 1-4 and a protection module 5, wherein the input end of the load balancing module 1 is connected with the serial output ends of the switch module 1, the transformer 1, the switch module 2 and the transformer 2 in the main power module, the input end of the load balancing module 2 is connected with the serial output ends of the switch module 3, the transformer 3, the switch module 4 and the transformer 4 in the main power module, the input end of the load balancing module 3 is connected with the serial output ends of the switch module 5, the transformer 5, the switch module 6 and the transformer 6 in the main power module, the input end of the load balancing module 4 is connected with the serial output ends of the switch module 7, the transformer 7, the switch module 8 and the transformer 8 in the main power module, the LS ports of the load balancing modules 1-4 are all connected, and the load balancing modules 1-4 are connected with the protection module, the protection module is connected to the main power supply module 20.

A high-power direct-current stabilized power supply for an intelligent well drilling tool, wherein the rectification module 10 comprises a first diode D1, a second diode D2, a third diode D3, a fourth diode D4, a fifth diode D5 and a sixth diode D6, wherein the anode of the first diode D1 is connected with the cathode of the second diode D2, and the cathode of the first diode D1 is connected with the output end of the rectification module 10V _recThe anode of the second diode D2 is grounded, the anode of the third diode D3 is connected to the cathode of the fourth diode D4, and the cathode of the third diode D3 is connected to the output terminal of the rectifier module 10V _recThe anode of the fourth diode D4 is grounded, the anode of the fifth diode D5 is connected to the cathode of the sixth diode D6, and the cathode of the fifth diode D5 is connected to the output terminal of the rectifier module 10V _recThe anode of the sixth diode D6 is grounded, and the three-phase power output end U, V, W of the mud turbine generator is respectively connected with the anodes of the fifth diode D5, the third diode D3 and the first diode D1.

The high-power direct-current stabilized power supply for the intelligent drilling tool comprises an auxiliary power supply module 30, resistors R1-R3, capacitors C1-C3, diodes D7-D8 and a power device Q1, wherein an IFR 450N channel MOSFET is selected as the Q1 in the power period, a 1N5250B voltage stabilizing diode is selected as the seventh diode D7, a 1N5347B voltage stabilizing diode is selected as the eighth diode D8, and one end of the first capacitor C1 is connected with the output end of the rectifying module 10V _recAnd the other end is grounded, and one end of the first resistor R1 is connected with the output end of the rectifier module 10V _recThe other end of the third resistor is connected to the second resistor R2, the other end of the second resistor R2 is connected to the gate of the power device Q1, the anode of the seventh diode D7 is grounded, the cathode of the seventh diode D7 is connected to the gate of the power device Q1, one end of the third resistor R3 is connected to the source of the power device Q1, and the other end of the third resistor R3 is connected to the cathode of the eighth diode D8The anode of the eighth diode D8 is grounded, one end of the second capacitor C2 is connected to the cathode of the eighth diode D8, and one end is grounded, one end of the third capacitor C3 is connected to the drain of the power device Q1, and the other end is grounded.

A high-power direct-current stabilized power supply for an intelligent well drilling tool is disclosed, wherein a switch module 1 and a transformer 1 in a main power supply module 20 comprise a first integrated circuit U1 and peripheral circuits thereof, a second integrated circuit U2 and peripheral circuits thereof, a third integrated circuit U3 and peripheral circuits thereof, a second power device Q2 and a first transformer T1, wherein the first integrated circuit U1 adopts a REF01 +5V reference voltage chip, the second integrated circuit U2 adopts a HV9110 pulse width modulation chip, the third integrated circuit U3 adopts a TSC427 MOSFET driver, the second power device Q2 adopts an IFR 450N channel MOSFET, NC pins of the first integrated circuit U1 are all arranged in a floating manner, VIN pins of the integrated circuit U1 are connected with +10V power output by an auxiliary power supply module 30, VIN pins of a fourth capacitor C4 are connected with VIN pins of the integrated circuit U1, the other end of the first integrated circuit U1 is grounded, the GND pin of the first integrated circuit U1 is grounded, the TRIM pin of the first integrated circuit U1 is in a floating configuration, the VOUT pin of the first integrated circuit U1 is an output pin and is connected to the VREF pin of the second integrated circuit U2, one end of the fifth capacitor C5 is connected to the VREF pin of the second integrated circuit U2, the other end of the fifth capacitor C5 is grounded, the RESET pin of the second integrated circuit U2 is in a floating configuration, the shut down pin of the second integrated circuit U2 is connected to the regulation and control module 04, the low level is active, the COMP pin of the second integrated circuit U2 is connected to one end of the sixth resistor R6, the other end of the sixth resistor R6 is connected to the FB pin of the second integrated circuit U2, the + VIN pin of the second integrated circuit U2 is in a floating configuration, one end of the seventh resistor R7 is connected to the FB pin of the second integrated circuit U2, and the other end of the sixth capacitor C6, the other end of the sixth capacitor C6 is connected to the COMP pin of the second integrated circuit U2, one end of the eighth resistor R8 is connected to the FB pin of the second integrated circuit U2, the other end of the eighth resistor R8 is connected to the regulation and control module 40, and one end of the ninth resistor R9 is connected to the main power module 20The other end of the seventh capacitor C7 is connected to the VCC pin of the second integrated circuit U2, the other end of the seventh capacitor C7 is connected to the ground, the SENSE pin of the second integrated circuit U2 is connected to one end of the ninth capacitor C9, the other end of the ninth capacitor C9 is connected to the ground, the put pin of the second integrated circuit U2 is the OUTPUT pin out, one end of the tenth resistor R10 is connected to the FB pin of the second integrated circuit U2, one end of the tenth resistor R10 is connected to the FB pin of the second integrated circuit U2, the other end of the tenth resistor R10 is connected to the ground, the-VIN pin and the DISCHARGE pin of the second integrated circuit U2 are connected to the ground, the BIAS pin of the second integrated circuit U2 is connected to the ground through the fifth resistor R5, the OSC pin of the second integrated circuit U2 is connected to the OSCOUT pin through the fourth resistor R4, the VCC pin of the second integrated circuit U2 is connected to the vscout pin, the input end of the third integrated circuit U3 is connected, the positive power pin of the third integrated circuit U3 is connected to the +10V dc power output by the auxiliary power module 30, one end of the eighth capacitor C8 is connected to the positive power pin of the third integrated circuit U3, the other end is grounded, the negative power pin of the third integrated circuit U3 is grounded, the positive electrode of the ninth diode D9 is grounded, the negative electrode is connected to the output end of the third integrated circuit U3, one end of the eleventh resistor R11 is connected to the output end of the third integrated circuit U3, the other end is connected to the gate of the second power device Q2, one end of the twelfth resistor R12 is connected to the gate of the second power device Q2, the other end is grounded, one end of the thirteenth resistor R13 is connected to the source of the second power device Q2, and the other end is connected to the SENSE pin of the second integrated circuit U2, one end of the fourteenth resistor R14 is connected to the source of the second power device Q2, the other end is grounded, the drain of the second power device Q2 is connected to the primary winding of the first transformer T1, and the output end of the rectifier module 10V _recThe primary winding of the first transformer T1 is connected, and one end of the tenth capacitor C10 is connected with the output end of the rectifier module 10V _recThe other end is grounded, the anode of the twelfth polar tube D10 is connected with the secondary winding of the first transformer T1, and the other end is the main circuitThe output end of the source module 20 outputs stable +18V dc power, one end of the eleventh capacitor C11 is connected to the negative electrode of the twelfth diode D10, and the other end is grounded.

A high-power direct-current stabilized power supply for an intelligent drilling tool is disclosed, wherein a load balancing module 401 in the regulation module 40 comprises a seventh integrated circuit U7 and a peripheral circuit thereof, an eighth integrated circuit U8 and a peripheral circuit thereof, a third power device Q3 and a peripheral circuit thereof, and a fourth power device Q4 and a peripheral circuit thereof, the seventh integrated circuit U7 adopts a UC1840 load balancing chip, the eighth integrated circuit U8 adopts a TPS2412 power supply controller chip, the third power device Q3 adopts a 2N2007 MOSFET, the fourth power device Q4 adopts a CSD16403Q5A N channel power type MOSFET, a grid electrode of the third power device Q3 is grounded through a fifteenth resistor R15, a source electrode of the third power device Q3 is grounded, a drain electrode of the third power device Q3 is connected with a CS + pin of the seventh integrated circuit U7 through the sixteenth resistor R16, one end of the seventeenth resistor R17 is connected with a CS + pin of the seventh integrated circuit U7, the other end of the eighteenth resistor R18 is grounded, one end of the eighteenth resistor R18 is connected to the CS + pin of the seventh integrated circuit U7, the other end of the eighteenth resistor R19 and one end of the twentieth resistor R20 are both connected to the +18V dc power output by the main power module 20, the other end of the nineteenth resistor R19 and the other end of the twentieth resistor R20 are both connected to one end of the twenty-first resistor R21, the other end of the twenty-first resistor R21 is connected to the CS-pin of the seventh integrated circuit U7, one ends of the twenty-second resistor R22 and the twelfth capacitor C12 are connected to the CS-pin of the seventh integrated circuit U7, the other end of the twenty-first resistor R21 is connected to the CSO pin of the seventh integrated circuit U7, one end of the twelfth capacitor C12 is connected to the CS-pin of the seventh integrated circuit U7, the other end of the twelfth capacitor C12 is connected to the CSO pin of the seventh integrated circuit U7, one end of the thirteenth capacitor C13 is connected to the CS-pin of the seventh integrated circuit U7, the other end of the thirteenth capacitor C13 is grounded, one end of the fourteenth capacitor C14 is connected to the VDD pin of the seventh integrated circuit U7, the other end of the fourteenth capacitor C14 is grounded, the GND pin of the seventh integrated circuit U7 is grounded, the ADJ pin of the seventh integrated circuit U7 is connected to the FB pin of the second integrated circuit U2 through the eighth resistor R8 in the main power module 20, the EAO pin of the seventh integrated circuit U7 is connected to one end of the fifteenth capacitor C15, the other end of the fifteenth pin C15 is grounded through the twenty-third resistor R23, the LS pin of the seventh integrated circuit U7 is a common pin of the load balancing modules 401-404, the LS pins of the load balancing modules 401-404 are connected, the ADJ pin of the seventh integrated circuit U7 is connected to the source of the fourth power device Q4, a source of the fourth power device Q4 is connected to the a pin of the eighth integrated circuit U8, a GATE of the fourth power device Q4 is connected to the GATE pin of the eighth integrated circuit U8, a drain of the fourth power device Q4 is connected to the C pin of the eighth integrated circuit U8, a BYP pin of the eighth integrated circuit is connected to one end of the seventeenth capacitor C17, the other end of the seventeenth capacitor C17 is connected to one end of a twenty-fourth resistor R24, the other end of the twenty-fourth resistor R24 is connected to a source of the fourth power device Q4, one end of the sixteenth capacitor C16 is connected to one end of the twenty-fourth resistor R24, the other end is grounded, an RSET pin of the eighth integrated circuit U8 is grounded through the twenty-fifth resistor R25, an RSVD pin and a pin of the eighth integrated circuit U8 are grounded, a C pin of the eighth integrated circuit U8 is connected to the eighteenth capacitor C18 and a twenty-fourth terminal of the twenty-fourth resistor R26, the other ends of the eighteenth capacitor C18 and the twenty-sixth resistor R26 are grounded.

A high-power direct-current stabilized voltage power supply for an intelligent drilling tool is characterized in that a protection module 405 in a regulation module 40 comprises a ninth integrated circuit U9 and a peripheral circuit thereof, a tenth integrated circuit U10 and a peripheral circuit thereof, and an eleventh integrated circuit U11 and a peripheral circuit thereof, wherein the ninth integrated circuit U9, the tenth integrated circuit U10 and the eleventh integrated circuit U11 all adopt OP07 operational amplifiers, one end of a twenty-seventh resistor R27 is connected with an output end of a rectifying module 10V _recThe other end of the first input terminal is connected with the non-inverting input terminal of the ninth integrated circuit U9 and the inverting input terminal of the tenth integrated circuit at the same time, and the second integrated circuitEighteen resistors R28, one end of which is connected to the non-inverting input terminal of the ninth IC U9 and the inverting input terminal of the tenth IC, and the other end of which is grounded, wherein the inverting input terminal of the ninth IC U9 is the set under-voltage protection threshold voltageV _LThe non-inverting input terminal of the tenth integrated circuit U10 is a set over-voltage protection threshold voltageV _HThe non-inverting input terminal of the eleventh integrated circuit U11 is a set load overload threshold voltageV _OLAn inverting input end of the eleventh integrated circuit U11 is connected to a high-power load, one end of the twenty-ninth resistor R29 is connected to an inverting input end of the eleventh integrated circuit U11, and the other end of the twenty-ninth resistor R29 is grounded, output ends of the ninth integrated circuit U9, the tenth integrated circuit U10, and the eleventh integrated circuit U11 are connected to a shut down pin of the second integrated circuit U2 in the main power module 20, one end of the thirty-third resistor R30 is connected to an output end of the ninth integrated circuit U9, and the other end of the thirty-third resistor R30 is connected to a +10V dc power output end of the auxiliary power module.

A high-power direct-current stabilized power supply for an intelligent drilling tool is disclosed, wherein the high-frequency inverter module 50 comprises fifth to eighth power devices Q5 to Q8, eleventh to fourteenth diodes D11 to Q14 and a second transformer T2, wherein the fifth to eighth power devices Q5 to Q8 form a high-frequency inverter circuit, IRF320MOSFET is adopted, gates of the fifth to eighth power devices Q5 to Q8 are connected with SG 14 PWM control chip, drains of the fifth and seventh power devices Q5 and Q7, and cathodes of the eleventh and thirteenth diodes D11 and D13 are connected with an output end of the main power supply module 20, a source of the fifth power device Q5, an anode of the eleventh diode D11 and a cathode of the twelfth diode D12 are connected with a drain of the sixth power device Q6, the sources of the sixth power device Q6 and the eighth power device Q8, and the anodes of the twelfth diode D12 and the fourteenth diode D14 are all grounded, the source of the seventh power device Q7, the anode of the thirteenth diode D13, and the cathode of the fourteenth diode D14 are all connected to the drain of the eighth power device Q8, and the drain of the sixth power device Q6 and the drain of the eighth power device Q8 are respectively connected to two ends of the primary winding of the transformer T2.

A high-power direct-current stabilized voltage power supply for an intelligent drilling tool is disclosed, wherein a stabilized voltage output module 60 comprises fifteenth diodes D15-eighteenth diodes D18, a nineteenth capacitor C19 and a twentieth capacitor C20, wherein, the cathodes of the nineteenth capacitor C19 and the eighteenth diode D18 are respectively connected with two ends of the secondary winding of the transformer T2, the cathode of the nineteenth capacitor C19 is connected to the anode of the fifteenth diode D15 and the cathode of the sixteenth diode D16 at the same time, the cathode of the fifteenth diode D15 is the output end of the regulated output module 60, outputs stable 36V/10A dc power, one end of the twentieth capacitor C20 is connected to the cathode of the fifteenth diode D15, and the other end is connected to the anodes of the eighteenth diode D18 and the sixteenth diode D16, the cathode of the seventeenth diode D17 is connected to the cathode of the fifteenth diode D15.

Compared with the prior art, the method and the system have the following advantages:

(1) by adopting the mode of series-parallel connection of the switch modules, the problem of insufficient output power of a single switch power supply module is solved, and the design of a high-power supply with the power of more than 300W is realized.

(2) By designing a load balancing circuit and a protection circuit and adjusting four paths of 36V/2.5A parallel power supplies through the load balancing circuit, each power supply can be uniformly loaded, and by arranging an overvoltage protection circuit, an undervoltage protection circuit and a load protection circuit, the safety and the stability of the intelligent drilling tool during underground work are realized.

(3) Through design high frequency contravariant module and steady voltage output module, realize the wireless transmission of electric energy between the intelligent drilling tool short circuit, improved safety, the stability of electric energy transmission between the short circuit, simplified the short circuit installation step, improved work efficiency.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a block diagram of a high power DC regulated power supply for an intelligent drilling tool according to an embodiment of the present invention;

fig. 2 is a block diagram of a main power supply module of a high-power dc stabilized power supply for an intelligent drilling tool according to an embodiment of the present invention.

Fig. 3 is a block diagram of a high-power dc regulated power supply module for an intelligent drilling tool according to an embodiment of the present invention.

Fig. 4 is a circuit diagram of a high-power dc stabilized power supply rectifying module for an intelligent drilling tool according to an embodiment of the invention.

FIG. 5 is a circuit diagram of an auxiliary power supply module of a high power DC stabilized power supply for an intelligent drilling tool according to an embodiment of the invention.

Fig. 6 is a circuit diagram of a main power supply module of a high-power direct-current stabilized power supply for an intelligent drilling tool according to an embodiment of the invention.

Fig. 7 is a circuit diagram of a high-power dc voltage-stabilized power supply load balancing module for an intelligent drilling tool according to an embodiment of the present invention.

Fig. 8 is a circuit diagram of a high-power dc stabilized power supply protection module for an intelligent drilling tool according to an embodiment of the invention.

Fig. 9 is a circuit diagram of a high-power dc regulated power supply high-frequency inverter module and a regulated output module for an intelligent drilling tool according to an embodiment of the present invention.

Detailed Description

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

Fig. 1 shows a high-power dc regulated power supply for an intelligent drilling tool, which includes a rectifier module 10, a main power supply module 20, an auxiliary power supply module 30, a regulation and control module 40, a high-frequency inverter module 50, and a regulated output module 60. The rectification module 10 is connected to the main power module 20 and the auxiliary power module 30, the auxiliary power module 30 is connected to the main power module 20 and the regulation and control module 40, the main power module 20 is connected to the high-frequency inversion module 50, and the high-frequency inversion module 50 is connected to the regulated output module 60. The rectifying module 10 is used for converting three-phase alternating current energy generated by the mud turbine generator into coarse direct current energy, the main power supply module 20 is used for converting the coarse direct current energy output by the rectifying module 10 into stable 36V/10A direct current energy for output, the auxiliary power supply module 30 is used for converting the coarse direct current energy output by the rectifying module 10 into stable 10V/2A direct current energy for output, the regulating and controlling module 40 is used for providing required direct current energy by the auxiliary power supply module 30, the regulating and controlling module 40 is used for performing overvoltage and undervoltage protection on the main power supply module 20 and the auxiliary power supply module and realizing load balance of the main power supply module 20, a primary side winding and a secondary side winding of a transformer in the high-frequency inverting module 50 are respectively installed on adjacent short-circuit of an intelligent drilling tool and used for wireless transmission of the direct current energy, the voltage stabilizing output module 60 is configured to convert the high-frequency alternating electric energy output by the secondary coil of the high-frequency inverter module 50 into a stable 36V direct-current electric energy for output.

As shown in fig. 2, the main power module includes switch modules 1 to 8 and transformer modules 1 to 8, each switch module and transformer module are taken as a group and have the same circuit structure, wherein the switch modules 1 to 8 are respectively connected to the transformers 1 to 8, the

switch modules

1, 2 and 2 are connected in series, the switch modules 3, 4 and 4 are connected in series, the switch modules 5, 6 and 6 are connected in series, the switch modules 7, 7 and 8 are connected in series, the

switch modules

1, 2 and 3, 2 are connected in series, The transformer 3, the switch module 4, the transformer 4 and the switch module 5, the transformer 5, the switch module 6, the transformer 6 and the switch module 7, the transformer 7, the switch module 8, the transformer 8 are connected in parallel.

As shown in fig. 3, which is a block diagram of a regulation module structure, the regulation module 40 includes: load balancing modules 1-4 and a protection module 5, wherein the input end of the load balancing module 1 is connected with the serial output ends of the switch module 1, the transformer 1, the switch module 2 and the transformer 2 in the main power module, the input end of the load balancing module 2 is connected with the serial output ends of the switch module 3, the transformer 3, the switch module 4 and the transformer 4 in the main power module, the input end of the load balancing module 3 is connected with the serial output ends of the switch module 5, the transformer 5, the switch module 6 and the transformer 6 in the main power module, the input end of the load balancing module 4 is connected with the serial output ends of the switch module 7, the transformer 7, the switch module 8 and the transformer 8 in the main power module, the LS ports of the load balancing modules 1-4 are all connected, and the load balancing modules 1-4 are connected with the protection module, the protection module is connected to the main power supply module 20.

As shown in fig. 4, the rectifying module 10 includes a first diode D1, a second diode D2, a third diode D3, a fourth diode D4, a fifth diode D5 and a sixth diode D6, wherein an anode of the first diode D1 is connected to a cathode of the second diode D2, and a cathode of the first diode D1 is connected to an output terminal of the rectifying module 10V _recThe anode of the second diode D2 is grounded, the anode of the third diode D3 is connected to the cathode of the fourth diode D4, and the cathode of the third diode D3 is connected to the output terminal of the rectifier module 10V _recThe anode of the fourth diode D4 is grounded, the anode of the fifth diode D5 is connected to the cathode of the sixth diode D6, and the cathode of the fifth diode D5 is connected to the output terminal of the rectifier module 10V _recThe anode of the sixth diode D4 is grounded, and the three-phase power output end U, V, W of the mud turbine generator is respectively connected with the fifth diode D5 and the third diodeD3, the positive electrode of the first diode D1.

As shown in fig. 5, the auxiliary power module 30 includes resistors R1-R3, capacitors C1-C3, diodes D7-D8, and a power device Q1, wherein the power period Q1 is an IFR 450N-channel MOSFET, the seventh diode D7 is a 1N5250B zener diode, the eighth diode D8 is a 1N5347B zener diode, and one end of the first capacitor C1 is connected to the output terminal of the rectifier module 10V _recAnd the other end is grounded, and one end of the first resistor R1 is connected with the output end of the rectifier module 10V _recThe other end of the second resistor R2 is connected to the second resistor R2, the other end of the second resistor R2 is connected to the gate of the power device Q1, the anode of the seventh diode D7 is grounded, the cathode of the seventh diode D7 is connected to the gate of the power device Q1, one end of the third resistor R3 is connected to the source of the power device Q1, the other end of the third resistor R3 is connected to the cathode of the eighth diode D8, the anode of the eighth diode D8 is grounded, one end of the second capacitor C2 is connected to the cathode of the eighth diode D8, the other end of the second capacitor C3 is grounded, one end of the third capacitor C3 is connected to the drain of the power device Q1, and the other end of the.

As shown in fig. 6, the switch module 1 and the transformer 1 in the main power module 20 include a first integrated circuit U1 and its peripheral circuits, a second integrated circuit U2 and its peripheral circuits, a third integrated circuit U3 and its peripheral circuits, a second power device Q2 and a first transformer T1, wherein the first integrated circuit U1 uses REF01 +5V reference voltage chip, the second integrated circuit U2 uses HV9110 pulse width modulation chip, the third integrated circuit U3 uses TSC427 dual power MOSFET driver, the second power device Q2 uses IFR 450N channel MOSFET, the NC pin of the first integrated circuit U1 is floating, the VIN pin of the integrated circuit U1 is connected to +10V dc power output by the auxiliary power module 30, the fourth capacitor C VIN 4 is connected to the pin of the integrated circuit U1 at one end and to ground, the GND pin of the first integrated circuit U1 is connected to ground, the TRIM pin of the first integrated circuit U1 is suspended, and the VOUT pin of the first integrated circuit U1 is an output pin and is connected with the first integrated circuitA VREF pin of a second integrated circuit U2, one end of the fifth capacitor C5 is connected to the VREF pin of the second integrated circuit U2, the other end is grounded, a RESET pin of the second integrated circuit U2 is set in a floating manner, a shut down pin of the second integrated circuit U2 is connected to the regulation and control module 04, the low level is active, a COMP pin of the second integrated circuit U2 is connected to one end of the sixth resistor R6, the other end of the sixth resistor R6 is connected to the FB pin of the second integrated circuit U2, a + VIN pin of the second integrated circuit U2 is set in a floating manner, one end of the seventh resistor R7 is connected to the FB pin of the second integrated circuit U2, the other end of the seventh resistor R7 is connected to the sixth capacitor C6, the other end of the sixth capacitor C6 is connected to the COMP pin of the second integrated circuit U2, one end of the eighth resistor R8 is connected to the FB pin of the second integrated circuit U2, and the other end of the regulation and control module 40, one end of the ninth resistor R9 is connected to the +18V output voltage of the main power module 20, the other end is connected to the FB pin of the second integrated circuit U2, one end of the tenth resistor R10 is connected to the FB pin of the second integrated circuit U2, the other end is grounded, the-VIN pin and the DISCHARGE pin of the second integrated circuit U2 are grounded, the BIAS pin of the second integrated circuit U2 is grounded through the fifth resistor R5, the OSC input pin OSC IN pin of the second integrated circuit U2 is connected to the OSC output pin OUT through the fourth resistor R4, the VCC pin of the second integrated circuit U2 is connected to the +10V dc power output by the auxiliary power module 30, one end of the seventh capacitor C7 is connected to the VCC pin of the second integrated circuit U2, the other end is grounded, the SENSE pin of the second integrated circuit U2 is connected to one end of the ninth capacitor C9, the other end ground connection of ninth electric capacity C9, the OUTPUT pin of second integrated circuit U2 is OUTPUT pin, connects third integrated circuit U3's input, the positive pin of power of third integrated circuit U3 is connected the +10V direct current electric energy of auxiliary power module 30 OUTPUT, the one end of eighth electric capacity C8 is connected the positive pin of power of third integrated circuit U3, other end ground connection, the power negative pin ground of third integrated circuit U3, the anodal ground of ninth diode D9, the negative pole is connected the OUTPUT of third integrated circuit U3, the eleventh diodeOne end of a resistor R11 is connected to the output end of the third integrated circuit U3, the other end of the resistor R11 is connected to the gate of the second power device Q2, one end of the twelfth resistor R12 is connected to the gate of the second power device Q2, the other end of the twelfth resistor R12 is grounded, one end of the thirteenth resistor R13 is connected to the source of the second power device Q2, the other end of the thirteenth resistor R13 is connected to the SENSE pin of the second integrated circuit U2, one end of the fourteenth resistor R14 is connected to the source of the second power device Q2, the other end of the fourteenth resistor R2 is grounded, the drain of the second power device Q2 is connected to the primary winding of the first transformer T1, and the outputV _recThe primary winding of the first transformer T1 is connected, and one end of the tenth capacitor C10 is connected with the output end of the rectifier module 10V _recThe other end of the eleventh capacitor C11 is grounded, the anode of the twelfth diode D10 is connected to the secondary winding of the first transformer T1, the other end of the twelfth capacitor D10 is the output end of the main power module 20, and outputs stable +18V dc power, and one end of the eleventh capacitor C11 is connected to the cathode of the twelfth diode D10.

As shown in fig. 7, the load balancing module 401 in the regulation module 40 includes a seventh integrated circuit U7 and its peripheral circuit, an eighth integrated circuit U8 and its peripheral circuit, a third power device Q3 and its peripheral circuit, and a fourth power device Q4 and its peripheral circuit, the seventh integrated circuit U7 selects a UC1840 load balancing chip, the eighth integrated circuit U8 selects a TPS2412 power supply controller chip, the third power device Q3 selects a 2N2007 MOSFET transistor, the fourth power device Q4 selects a CSD16403Q5A N channel power type transistor, the gate of the third power device Q3 is grounded through a fifteenth resistor R15, the source of the third power device Q3 is grounded, the drain of the third power device Q3 is connected to the CS + pin of the seventh integrated circuit U7 through the sixteenth resistor R16, one end of the seventeenth resistor R17 is connected to the CS + pin of the seventh integrated circuit U7, the other end of the eighteenth resistor R18 is grounded, one end of the eighteenth resistor R18 is connected to the CS + pin of the seventh integrated circuit U7, the other end of the eighteenth resistor R19 and one end of the twentieth resistor R20 are both connected to the +18V dc power output by the main power module 20, the other end of the nineteenth resistor R19 and the other end of the twentieth resistor R20 are both connected to one end of the twenty-first resistor R21, the other end of the twenty-first resistor R21 is connected to the CS-pin of the seventh integrated circuit U7, one ends of the twenty-second resistor R22 and the twelfth capacitor C12 are connected to the CS-pin of the seventh integrated circuit U7, the other end of the twenty-first resistor R21 is connected to the CSO pin of the seventh integrated circuit U7, one end of the twelfth capacitor C12 is connected to the CS-pin of the seventh integrated circuit U7, the other end of the twelfth capacitor C12 is connected to the CSO pin of the seventh integrated circuit U7, one end of the thirteenth capacitor C13 is connected to the CS-pin of the seventh integrated circuit U7, the other end of the thirteenth capacitor C13 is grounded, one end of the fourteenth capacitor C14 is connected to the VDD pin of the seventh integrated circuit U7, the other end of the fourteenth capacitor C14 is grounded, the GND pin of the seventh integrated circuit U7 is grounded, the ADJ pin of the seventh integrated circuit U7 is connected to the FB pin of the second integrated circuit U2 through the eighth resistor R8 in the main power module 20, the EAO pin of the seventh integrated circuit U7 is connected to one end of the fifteenth capacitor C15, the other end of the fifteenth pin C15 is grounded through the twenty-third resistor R23, the LS pin of the seventh integrated circuit U7 is a common pin of the load balancing modules 401-404, the LS pins of the load balancing modules 401-404 are connected, the ADJ pin of the seventh integrated circuit U7 is connected to the source of the fourth power device Q4, a source of the fourth power device Q4 is connected to the a pin of the eighth integrated circuit U8, a GATE of the fourth power device Q4 is connected to the GATE pin of the eighth integrated circuit U8, a drain of the fourth power device Q4 is connected to the C pin of the eighth integrated circuit U8, a BYP pin of the eighth integrated circuit is connected to one end of the seventeenth capacitor C17, the other end of the seventeenth capacitor C17 is connected to one end of a twenty-fourth resistor R24, the other end of the twenty-fourth resistor R24 is connected to a source of the fourth power device Q4, one end of the sixteenth capacitor C16 is connected to one end of the twenty-fourth resistor R24, the other end is grounded, an RSET pin of the eighth integrated circuit U8 is grounded through the twenty-fifth resistor R25, an RSVD pin and a pin of the eighth integrated circuit U8 are grounded, a C pin of the eighth integrated circuit U8 is connected to the eighteenth capacitor C18 and a twenty-fourth terminal of the twenty-fourth resistor R26, the other ends of the eighteenth capacitor C18 and the twenty-sixth resistor R26 are grounded.

As shown in fig. 8, the protection module 405 in the regulation module 40 includes a ninth integrated circuit U9 and its peripheral circuit, a tenth integrated circuit U10 and its peripheral circuit, and an eleventh integrated circuit U11 and its peripheral circuit, the ninth integrated circuit U9, the tenth integrated circuit U10 and the eleventh integrated circuit U11 all adopt OP07 operational amplifiers, and one end of the twenty-seventh resistor R27 is connected to the output end of the rectification module 10V _recThe other end of the same is connected with the non-inverting input end of the ninth integrated circuit U9 and the inverting input end of the tenth integrated circuit, one end of the twenty-eighth resistor R28 is connected with the non-inverting input end of the ninth integrated circuit U9 and the inverting input end of the tenth integrated circuit, the other end of the same is grounded, and the inverting input end of the ninth integrated circuit U9 is the set undervoltage protection threshold voltageV _LThe non-inverting input terminal of the tenth integrated circuit U10 is a set over-voltage protection threshold voltageV _HThe non-inverting input terminal of the eleventh integrated circuit U11 is a set load overload threshold voltageV _OLAn inverting input end of the eleventh integrated circuit U11 is connected to a high-power load, one end of the twenty-ninth resistor R29 is connected to an inverting input end of the eleventh integrated circuit U11, and the other end of the twenty-ninth resistor R29 is grounded, output ends of the ninth integrated circuit U9, the tenth integrated circuit U10, and the eleventh integrated circuit U11 are connected to a shut down pin of the second integrated circuit U2 in the main power module 20, one end of the thirty-third resistor R30 is connected to an output end of the ninth integrated circuit U9, and the other end of the thirty-third resistor R30 is connected to a +10V dc power output end of the auxiliary power module.

As shown in fig. 9, the high-frequency inverter module 50 includes fifth to eighth power devices Q5 to Q8, eleventh to fourteenth diodes D11 to D14, and a second transformer T2, wherein the fifth to eighth power devices Q5 to Q8 constitute a high-frequency inverter circuit, all IRF320MOSFET transistors are used, gates of the fifth to eighth power devices Q5 to Q8 are connected to an SG 14 PWM control chip, drains of the fifth and seventh power devices Q5 and Q7, the eleventh and thirteenth diodes D11 and D13 are connected to an output end of the main power module 20, a source of the fifth power device Q5, an anode of the eleventh diode D11, and a cathode of the twelfth diode D12 are connected to a drain of the sixth power device Q6, and sources of the sixth and eighth power devices Q6 and Q8 are connected to a source of the sixth and eighth power device Q8, Anodes of the twelfth diode D12 and the fourteenth diode D14 are all grounded, a source of the seventh power device Q7, an anode of the thirteenth diode D13, and a cathode of the fourteenth diode D14 are all connected to a drain of the eighth power device Q8, and a drain of the sixth power device Q6 and a drain of the eighth power device Q8 are respectively connected to two ends of a primary winding of the transformer T2. The voltage stabilizing output module 60 comprises fifteenth diodes D15-eighteenth diodes D18, a nineteenth capacitor C19 and a twentieth capacitor C20, wherein cathodes of the nineteenth capacitor C19 and the eighteenth diode D18 are respectively connected to two ends of a secondary winding of the transformer T2, a cathode of the nineteenth capacitor C19 is simultaneously connected to an anode of the fifteenth diode D15 and a cathode of the sixteenth diode D16, a cathode of the fifteenth diode D15 is an output end of the voltage stabilizing output module 60 and outputs stable 36V/10A direct current electric energy, one end of the twentieth capacitor C20 is connected to a cathode of the fifteenth diode D15, the other end of the twentieth capacitor C20 is simultaneously connected to anodes of the eighteenth diode D18 and the sixteenth diode D16, and a cathode of the seventeenth diode D17 is connected to a cathode of the fifteenth diode D15.

When the intelligent drilling tool drills, drilling fluid erodes a rotor of the mud turbine generator, the mud turbine generator generates three-phase low-frequency alternating current power, the three-phase low-frequency alternating current power is converted into coarse direct current power by the rectifying module 10 and is output to the main power module 20 and the auxiliary power module 30, the coarse direct current power output by the rectifying module 10 is converted into stable direct current power of 10V/2A by the auxiliary power module 30 and is used for supplying the stable direct current power to the main power module 20 and the regulating module 40, the main power module 20 adopts a series-parallel connection switching power supply structure, the coarse direct current power output by the rectifying module 10 is converted into stable direct current power of 36V/10A, the high-frequency inversion module 50 realizes wireless power transmission between two adjacent short circuits of the intelligent drilling tool, the direct current power after wireless transmission is shaped by the voltage stabilizing output module 60 and is supplied to other electric loads of the intelligent drilling tool to, The control and drive functions, the regulation and control module 40 completes the load balance of each switch module in the main power supply module 20 and protects the conditions of overvoltage, undervoltage and overload, thereby realizing the design of a 300W high-power supply and improving the safety and stability of the underground work of the intelligent drilling tool.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A high-power direct-current stabilized power supply for an oil drilling tool comprises a rectification module (10), a main power supply module (20), an auxiliary power supply module (30), a regulation and control module (40), a high-frequency inversion module (50) and a stabilized voltage output module (60); the rectification module (10) is connected with the main power supply module (20) and the auxiliary power supply module (30), the auxiliary power supply module (30) is connected with the main power supply module (20) and the regulation and control module (40), the main power supply module (20) is connected with the high-frequency inversion module (50), and the high-frequency inversion module (50) is connected with the regulated voltage output module (60); the mud turbine generator comprises a rectification module (10), a main power module (20), an auxiliary power module (30), an auxiliary power module (40), an auxiliary power module (30) and a high-frequency inversion module (50), wherein the rectification module (10) is used for converting three-phase alternating current electric energy generated by a mud turbine generator into coarse direct current electric energy, the main power module (20) is used for converting the coarse direct current electric energy output by the rectification module (10) into stable 36V/10A direct current electric energy to be output, the auxiliary power module (30) is used for converting the coarse direct current electric energy output by the rectification module (10) into stable 10V/2A direct current electric energy to be output, the required direct current electric energy is provided by the auxiliary power module (30) through the regulation and control module (40), the regulation and control module (40) is used for carrying out overvoltage and undervoltage protection on the main power module (20) and the auxiliary power module and realizing load balance of the main, the voltage stabilizing output module (60) is used for converting the high-frequency alternating electric energy output by the secondary coil of the high-frequency inversion module (50) into stable 36V direct-current electric energy to be output;

the main power module (20) further comprises switch modules 1-8 and transformer modules 1-8, each switch module and transformer module are taken as a group and adopt the same circuit structure, wherein the switch modules 1-8 are respectively connected with the transformers 1-8, the switch module 1, the transformer 1, the switch module 2 and the transformer 2 are connected in series, the switch module 3, the transformer 3, the switch module 4 and the transformer 4 are connected in series, the switch module 5, the transformer 5, the switch module 6 and the transformer 6 are connected in series, the switch module 7, the transformer 7, the switch module 8 and the transformer 8 are connected in series, the switch module 1, the transformer 1, the switch module 2, the transformer 2 and the switch module 3, The transformer 3, the switch module 4, the transformer 4 are connected in parallel with the switch module 5, the transformer 5, the switch module 6, the transformer 6, the switch module 7, the transformer 7, the switch module 8, and the transformer 8;

the regulatory module (40) further comprises: load balancing modules 1-4 and a protection module (405), wherein the input end of the load balancing module 1 is connected with the serial output ends of the switch module 1, the transformer 1, the switch module 2 and the transformer 2 in the main power module, the input end of the load balancing module 2 is connected with the serial output ends of the switch module 3, the transformer 3, the switch module 4 and the transformer 4 in the main power module, the input end of the load balancing module 3 is connected with the serial output ends of the switch module 5, the transformer 5, the switch module 6 and the transformer 6 in the main power module, the input end of the load balancing module 4 is connected with the serial output ends of the switch module 7, the transformer 7, the switch module 8 and the transformer 8 in the main power module, the LS ports of the load balancing modules 1-4 are all connected, and the load balancing modules 1-4 are connected with the protection module (405), the protection module (405) is connected with the main power supply module (20);

the auxiliary power supply module (30) comprises a first resistor R1, a second resistor R2, a third resistor R3, a first capacitor C1, a second capacitor C2, a third capacitor C3, a seventh diode D7, an eighth diode D8 and a power device Q1, wherein the power device Q1 adopts an IFR 450N-channel MOSFET tube, the seventh diode D7 adopts a 1N5250B zener diode, the eighth diode D8 adopts a 1N5347B zener diode, one end of the first capacitor C1 is connected with the output end Vrec of the rectifying module (10) and the other end is grounded, one end of the first resistor R1 is connected with the output end ec of the rectifying module (10), the other end is connected with the second resistor R2, the other end of the second resistor R2 is connected with the gate of the power device Q1, the positive electrode of the seventh diode D7 is grounded, the negative electrode of the seventh diode D7 is connected with the gate of the power device Q1, one end of the third resistor R3 is connected to the source of the power device Q1, the other end is connected to the cathode of the eighth diode D8, the anode of the eighth diode D8 is grounded, one end of the second capacitor C2 is connected to the cathode of the eighth diode D8, the other end is grounded, one end of the third capacitor C3 is connected to the drain of the power device Q1, and the other end is grounded.

2. The high power DC voltage-stabilized power supply for oil drilling tool as set forth in claim 1, wherein the rectifying module (10) comprises a first diode D1, a second diode D2, a third diode D3, a fourth diode D4, a fifth diode D5 and a sixth diode D6, wherein the anode of the first diode D1 is connected to the cathode of the second diode D2, and the cathode of the first diode D1 is connected to the output terminal of the rectifying module (10)V _recThe anode of the second diode D2 is grounded, the anode of the third diode D3 is connected with the cathode of the fourth diode D4,the cathode of the third diode D3 is connected with the output end of the rectifying module (10)V _recThe anode of the fourth diode D4 is grounded, the anode of the fifth diode D5 is connected with the cathode of the sixth diode D6, and the cathode of the fifth diode D5 is connected with the output end of the rectifier module (10)V _recThe anode of the sixth diode D6 is grounded, and the three-phase power output end U, V, W of the mud turbine generator is respectively connected with the anodes of the fifth diode D5, the third diode D3 and the first diode D1.

3. The high power DC voltage-stabilized power supply for oil well drilling tool as claimed in claim 1, wherein the switch module 1 and the transformer 1 in the main power module (20) comprise a first integrated circuit U1 and its peripheral circuits, a second integrated circuit U2 and its peripheral circuits, a third integrated circuit U3 and its peripheral circuits, a second power device Q2 and a first transformer T1, wherein the first integrated circuit U1 is selected from REF01 +5V reference voltage chips, the second integrated circuit U2 is selected from VIN 9110 pulse width modulation chips, the third integrated circuit U3 is selected from TSC427 dual power MOSFET drivers, the second power device Q2 is selected from IFR 450N channel MOSFET, the NC pins of the first integrated circuit U1 are all floating, the VIN pin of the integrated circuit U1 is connected with the +10V DC power output from the auxiliary power module (30), one end of a fourth capacitor C4 is connected with the pin of the integrated circuit U1, the other end of the first integrated circuit U1 is grounded, a GND pin of the first integrated circuit U1 is grounded, a TRIM pin of the first integrated circuit U1 is arranged in a suspended mode, a VOUT pin of the first integrated circuit U1 is an output pin and is connected with a VREF pin of the second integrated circuit U2, one end of a fifth capacitor C5 is connected with the VREF pin of the second integrated circuit U2, the other end of the fifth capacitor C5 is grounded, a RESET pin of the second integrated circuit U2 is arranged in a suspended mode, a SHUTDOWN pin of the second integrated circuit U2 is connected with the regulation and control module (40), the low level is effective, a COMP pin of the second integrated circuit U2 is connected with one end of a sixth resistor R6, the other end of the sixth resistor R6 is connected with an FB pin of the second integrated circuit U2, and the secondA + VIN pin of U2 is set IN a floating manner, one end of a seventh resistor R7 is connected to an FB pin of the second integrated circuit U2, the other end of the seventh resistor R7 is connected to a sixth capacitor C6, the other end of the sixth capacitor C6 is connected to a COMP pin of the second integrated circuit U2, one end of an eighth resistor R8 is connected to an FB pin of the second integrated circuit U2, the other end of the eighth resistor R8 is connected to the regulation module (40), one end of a ninth resistor R9 is connected to +18V of the main power module (20), the other end of the ninth resistor R9 is connected to the other end of the eighth resistor R8, one end of a tenth resistor R10 is connected to the other end of the eighth resistor R8, the other end of the tenth resistor R10 is grounded, a-VIN pin and a DISCHARGE pin of the second integrated circuit U2 are grounded, a BIAS pin of the second integrated circuit U2 is grounded through a fifth resistor R5, an OSC input pin OSC 39in of the second integrated circuit U2 is connected to a, the VCC pin of the second integrated circuit U2 is connected with the +10V DC power OUTPUT by the auxiliary power supply module (30), one end of a seventh capacitor C7 is connected with the VCC pin of the second integrated circuit U2, the other end of the seventh capacitor C7 is grounded, the SENSE pin of the second integrated circuit U2 is connected with one end of a ninth capacitor C9, the other end of the ninth capacitor C9 is grounded, the OUTPUT pin of the second integrated circuit U2 is an OUTPUT pin and is connected with the input end of the third integrated circuit U3, the positive power supply pin of the third integrated circuit U3 is connected with the +10V DC power OUTPUT by the auxiliary power supply module (30), one end of an eighth capacitor C8 is connected with the positive power supply pin of the third integrated circuit U3, the other end of the eighth capacitor C8 is grounded, the negative power supply pin of the third integrated circuit U3 is grounded, the positive pole of a ninth diode D9 is grounded, and the negative pole of the eighth capacitor C3 is connected with the OUTPUT, one end of an eleventh resistor R11 is connected to the output terminal of the third integrated circuit U3, the other end is connected to the gate of the second power device Q2, one end of a twelfth resistor R12 is connected to the gate of the second power device Q2, the other end is grounded, one end of a thirteenth resistor R13 is connected to the source of the second power device Q2, the other end is connected to the SENSE pin of the second integrated circuit U2, one end of a fourteenth resistor R14 is connected to the source of the second power device Q2, the other end is grounded, the drain of the second power device Q2 is connected to the primary winding of the first transformer T1, and the drain of the second power device Q2 is connected to the primary winding of the first transformer T36Output terminal of the rectifier module (10)V _recOne end of a tenth capacitor C10 is connected with the output end of the rectifying module (10)V _recThe other end of the diode is grounded, the anode of a twelfth polar tube D10 is connected with the secondary winding of the first transformer T1, the other end of the diode is the output end of the main power supply module (20) and outputs stable +18V direct current electric energy, one end of an eleventh capacitor C11 is connected with the cathode of the twelfth polar tube D10, and the other end of the eleventh capacitor C11 is grounded.

4. The high-power direct-current stabilized voltage power supply for the oil drilling tool as claimed in claim 3, wherein the load balancing module 1 in the regulation module (40) comprises a seventh integrated circuit U7 and its peripheral circuit, an eighth integrated circuit U8 and its peripheral circuit, a third power device Q3 and its peripheral circuit, and a fourth power device Q4 and its peripheral circuit, the seventh integrated circuit U7 is selected from a UC1840 load balancing chip, the eighth integrated circuit U8 is selected from a TPS2412 power supply controller chip, the third power device Q3 is selected from a 2N2007 MOSFET tube, the fourth power device Q4 is selected from a CSD16403Q5A N channel power type MOSFET tube, the gate of the third power device Q3 is grounded through a fifteenth resistor R15, the source of the third power device Q3 is grounded, the drain of the third power device Q3 is connected with the CS + pin of the seventh integrated circuit U7 through a sixteenth resistor R16, one end of a seventeenth resistor R17 is connected to the CS + pin of the seventh integrated circuit U7, the other end of the seventeenth resistor R17 is grounded, one end of an eighteenth resistor R18 is connected to the CS + pin of the seventh integrated circuit U7, the other end of the eighteenth resistor R18 is connected to the +18V DC power output by the main power module 20, one ends of a nineteenth resistor R19 and a twentieth resistor R20 are connected to the +18V DC power output by the main power module (20), the other ends of the nineteenth resistor R21 are connected to one end of a twenty-first resistor R21, the other end of the twenty-first resistor R21 is connected to the CS-pin of the seventh integrated circuit U7, one ends of a twenty-second resistor R22 and a twelfth capacitor C12 are connected to the CS-pin of the seventh integrated circuit U7, the other end of the twenty-first resistor R7 is connected to the CSO pin of the seventh integrated circuit U7, one end of the twelfth capacitor C12 is, a VDD pin of the seventh integrated circuit U7 is connected to the other end of a nineteenth resistor R19, one end of a thirteenth capacitor C13 is connected to a CS-pin of the seventh integrated circuit U7, the other end of the thirteenth capacitor C13 is grounded, one end of a fourteenth capacitor C14 is connected to a VDD pin of the seventh integrated circuit U7, the other end of the fourteenth capacitor C14 is grounded, a GND pin of the seventh integrated circuit U7 is grounded, an ADJ pin of the seventh integrated circuit U7 is connected to an FB pin of the second integrated circuit U2 through an eighth resistor R8 in the main power supply module (20), an EAO pin of the seventh integrated circuit U7 is connected to one end of a fifteenth capacitor C15, the other end of the fifteenth capacitor C15 is grounded through a thirteenth resistor R23, an LS pin of the seventh integrated circuit U7 is a common pin of the load balancing modules 401-404, and LS pins of the load balancing modules 1-4 are connected, an ADJ pin of the seventh integrated circuit U7 is connected to a source of the fourth power device Q4, a source of the fourth power device Q4 is connected to an a pin of the eighth integrated circuit U8, a GATE of the fourth power device Q4 is connected to a GATE pin of the eighth integrated circuit U8, a drain of the fourth power device Q4 is connected to a C pin of the eighth integrated circuit U8, a BYP pin of the eighth integrated circuit is connected to one end of a seventeenth capacitor C17, the other end of the seventeenth capacitor C17 is connected to one end of a twenty-fourth resistor R24, the other end of the twenty-fourth resistor R24 is connected to the source of the fourth power device Q4, one end of a sixteenth capacitor C16 is connected to one end of the twenty-fourth resistor R24, the other end is grounded, a RSET pin of the eighth integrated circuit U8 is grounded through a twenty-fifth resistor R25, an RSET pin of the eighth integrated circuit U8 and a GND pin, the pin C of the eighth integrated circuit U8 is connected with one end of an eighteenth capacitor C18 and one end of a twenty-sixth resistor R26, and the other end of the eighteenth capacitor C18 and the other end of the twenty-sixth resistor R26 are grounded.

5. The high-power direct-current voltage-stabilized power supply for the oil drilling tool as claimed in claim 1, wherein the high-frequency inverter module (50) comprises a fifth power device Q5, a sixth power device Q6, a seventh power device Q7, an eighth power device Q8, an eleventh diode D11, a twelfth diode D12, a thirteenth diode D13, a fourteenth diode D14 and a second transformer T2, wherein the fifth power device Q5 to the eighth power device Q8 form a high-frequency inverter circuit, IRF320MOSFET tubes are selected, gates of the fifth power device Q5 to the eighth power device Q8 are connected with an SG 8 PWM control chip, drains of the fifth power device Q5 and the seventh power device Q7, cathodes of the eleventh diode D11 and the thirteenth diode D13 are connected with an output end of the main power module (20), and a source of the fifth power device Q5 is connected with a negative electrode of the output end of the main power module (20), The anode of the eleventh diode D11 and the cathode of the twelfth diode D12 are both connected to the drain of the sixth power device Q6, the sources of the sixth power device Q6 and the eighth power device Q8, and the anodes of the twelfth diode D12 and the fourteenth diode D14 are all grounded, the source of the seventh power device Q7, the anode of the thirteenth diode D13, and the cathode of the fourteenth diode D14 are all connected to the drain of the eighth power device Q8, and the drain of the sixth power device Q6 and the drain of the eighth power device Q8 are respectively connected to two ends of the primary winding of the second transformer T2.

6. A high power DC voltage-stabilized power supply for oil drilling tool as claimed in claim 5, wherein the voltage-stabilized output module (60) comprises a fifteenth diode D15, a sixteenth diode D16, a seventeenth diode D17, an eighteenth diode D18, a nineteenth capacitor C19 and a twentieth capacitor C20, wherein the anode of the nineteenth capacitor C19 and the cathode of the eighteenth diode D18 are respectively connected to both ends of the secondary winding of the second transformer T2, the cathode of the nineteenth capacitor C19 is simultaneously connected to the anode of the fifteenth diode D15 and the cathode of the sixteenth diode D16, the cathode of the fifteenth diode D15 is the output terminal of the voltage-stabilized output module (60) and outputs stable 36V/10A DC power, the twentieth capacitor C20 has one end connected to the cathode of the fifteenth diode D15 and the other end connected to the anode of the eighteenth diode D18 and the sixteenth diode D16, the cathode of the seventeenth diode D17 is connected to the cathode of the fifteenth diode D15.