CN202617058U - Rectification and voltage stabilization power supply apparatus of underground turbine generator - Google Patents
Rectification and voltage stabilization power supply apparatus of underground turbine generator Download PDFInfo
- Publication number
- CN202617058U CN202617058U CN2012201711933U CN201220171193U CN202617058U CN 202617058 U CN202617058 U CN 202617058U CN 2012201711933 U CN2012201711933 U CN 2012201711933U CN 201220171193 U CN201220171193 U CN 201220171193U CN 202617058 U CN202617058 U CN 202617058U
- Authority
- CN
- China
- Prior art keywords
- voltage
- module
- overvoltage
- output
- overcurrent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Abstract
The utility model relates to a rectification and voltage stabilization power supply apparatus of an underground turbine generator. The apparatus comprises a turbine generator, a rectifier and filter module, an input-level overcurrent overvoltage undervoltage protection module, a DC / DC switching converter, a power management controller and a secondary filter output module. The turbine generator converts the energy of drilling fluid into large-power alternating current power that is then inputted into the rectifier and filter module; an alternating voltage is converted into a direct-current large-ripple wave voltage and then the converted voltage is transmitted into the input-level overcurrent overvoltage undervoltage protection module; voltage signals outputted by the input-level overcurrent overvoltage undervoltage protection module are respectively inputted into the DC / DC switching converter and the power management controller; the power management controller converts the received voltage signals into PWM signals that are transmitted to the DC / DC switching converter to carry out controlling of connection and disconnection of the converter; a the output terminal of the DC / DC switching converter is connected with the secondary filter output module and the voltage signals are filtered by the secondary filter output module so as to generated low-ripple stable direct current voltages; and the voltages are inputted into the power management controller. According to the utility model, the provided apparatus can be widely applied to underground electrical tools of an oil well.
Description
Technical field
The utility model relates to a kind of oil well downhole tool electric supply installation, particularly about a kind of down-hole turbogenerator rectifying and voltage-stabilizing electric supply installation.
Background technology
The operation principle of down-hole turbogenerator is to be electric energy through turbine with the Conversion of energy of drilling fluid.About the design of down-hole turbogenerator, domestic existing tens of patented technologies.The operating mode of control and function, the structure of measurement while-drilling instrument and instrument are analyzed from measurement while drilling and down-hole, should be a kind of preferable selection with generator as the down-hole main power source.Because under with driller's condition, swiftly flowing drilling fluid is that generator provides the power that continues, as long as rig work, circulation of drilling fluid flows, generator just can provide the electric power of abundance for measurement while-drilling instrument and instrument.The advantage of down-hole turbine type alternator power supply is can adapt to the down-hole high temperature and high pressure environment for a long time for system provides electric power, long working life, thereby can transmit more multi-parameter, represented the development trend of measuring technique; Its shortcoming is that the electric current that produces is unstable, and this has also limited its development to a certain extent, therefore need carry out rectifying and voltage-stabilizing to improve the stability of system to it.
There is following shortcoming in existing turbogenerator rectifying and voltage-stabilizing power supply device system: 1, voltage ripple is bigger, is generally analog power or linear power supply, and conversion efficiency is low, and caloric value is big, can not satisfy the down-hole high-temperature work environment.2, existing module lacks protective device, and under situation such as appearance overload overvoltage, there is great potential safety hazard in the load device of damage TRT and rear end, fail safe and poor reliability.
Summary of the invention
To the problems referred to above, the purpose of the utility model provides and a kind ofly can satisfy the down-hole high-temperature work environment, and fail safe and reliability be down-hole turbogenerator rectifying and voltage-stabilizing electric supply installation preferably.
For realizing above-mentioned purpose; The utility model is taked following technical scheme: a kind of down-hole turbogenerator rectifying and voltage-stabilizing electric supply installation is characterized in that: it comprises turbogenerator, rectification filtering module, input stage overcurrent-overvoltage under-voltage protection module, DC/DC switch converters, power source management controller and secondary filtering output module; Said turbogenerator is imported the Conversion of energy of drilling fluid in the said rectification filtering module for the high power AC electric energy, transfers in the said input stage overcurrent-overvoltage under-voltage protection module after converting alternating voltage into direct current big ripple voltage; The voltage signal of said input stage overcurrent-overvoltage under-voltage protection module output is imported said DC/DC switch converters and power source management controller respectively; Said power source management controller converts the voltage signal that receives into pwm signal, transfers to said its break-make of DC/DC switch converters inner control; Said DC/DC switch converters output connects said secondary filtering output module, and voltage signal generates low ripple stable DC voltage after the filtering of said secondary filtering output module, input in the said power source management controller.
Said input stage overcurrent-overvoltage under-voltage protection module comprises first bleeder circuit that is made up of two series resistances, sensing resistor, FET, by second bleeder circuit and controller that two series resistances constitute, be provided with under-voltage judge module, overcurrent judge module, overvoltage judge module and master controller in the said controller; Said input stage overcurrent-overvoltage under-voltage protection module input is parallelly connected with said first bleeder circuit, and input is also connected with said sensing resistor and FET successively; Said first bleeder circuit with detected input terminal voltage signal import in the said under-voltage judge module with preset under-voltage protection threshold ratio; Said sensing resistor with detected current signal import in the said overcurrent judge module with preset overcurrent protection threshold ratio, said under-voltage judge module and overcurrent judge module are imported said master controller with its comparative result respectively; Said FET source electrode connects said input stage overcurrent-overvoltage under-voltage protection module output, parallelly connected said second bleeder circuit between this output and said FET source electrode; Said second bleeder circuit is imported detected output end voltage signal in the said overvoltage judge module, with preset overvoltage protection threshold ratio, and comparative result imported in the said master controller; Said master controller is controlled said FET disconnection/conducting according to each comparative result.
Under-voltage protection threshold value V in the said under-voltage judge module
UndervoltagFor: V
Undervoltage=V
In* (R2/ (R1+R2)), in the formula, V
InBe the input voltage of said input stage overcurrent-overvoltage under-voltage protection module, R1, R2 are the resistance of two series connection in said first bleeder circuit.
Overcurrent protection threshold value I in the said overcurrent judge module
OvercurrentFor: I
Overcurrent=V
Senseset/ Rsense, in the formula, V
SensesetBe said sensing resistor two ends predeterminated voltage, Rsense is the resistance of said sensing resistor.
Overvoltage protection threshold value V in the said overvoltage judge module
OvervoltageFor: V
Overvoltage=V
Out* (R4/ (R3+R4)), in the formula, V
OutBe the output voltage of said input stage overcurrent-overvoltage under-voltage protection module, R3, R4 are the resistance of two series connection in said second bleeder circuit.
Said power source management controller comprises accessory power supply, logic control PWM maker, electric current and voltage feedback detector, output overvoltage over-current protecting unit and logical AND not gate; After the high voltage direct current step-down of said accessory power supply with said input stage overcurrent-overvoltage under-voltage protection module input, generate the low pressure accessory power supply and import in the said logic control PWM maker, and be said power source management controller power supply; The low ripple stable DC voltage by said secondary filtering output module output that said electric current and voltage feedback detector will receive is imported respectively in said logic control PWM maker and the output overvoltage over-current protecting unit; The electric current and voltage feedback signal that said logic control PWM maker obtains according to detection relatively generates PWM output signal in the back with preset desired value; Said output overvoltage over-current protecting unit compares feedback voltage current signal that receives and preset desired value; Judge that whether it surpass this desired value 10%, and generate the control pwm signal of said logical AND not gate break-make with the PWM output signal of said logic control PWM maker; The control pwm signal is imported said its break-make of DC/DC switch converters inner control.
Said rectification filtering module comprises rectifying and wave-filtering bridge circuit and the big high temperature resistant electrochemical capacitor of capacity; The electric energy of said turbogenerator output converts unidirectional direct current into through said rectifying and wave-filtering bridge circuit; Import the high temperature resistant electrochemical capacitor energy storage of said big capacity filtering, convert unidirectional direct current into direct current big ripple voltage output.
The utility model is owing to take above technical scheme; It has the following advantages: 1, the utility model is because the voltage stabilizing electric supply installation that adopts turbogenerator, rectification filtering module, input stage overcurrent-overvoltage under-voltage protection module, DC/DC switch converters, power source management controller and secondary filtering output module to constitute; Efficiently solve not fixing defective of the intrinsic voltage magnitude frequency of the direct power supply station of turbogenerator; Can satisfy the down-hole high-temperature work environment for the down-hole provides more stable direct current supply voltage with electric tool.2, the turbogenerator of the utility model employing uses the running of the mud flow rate driving turbogenerator in the oilwell drilling process, makes the kinetic energy that mud had convert the electric energy that turbogenerator generates into, and this electric energy has the characteristics of wide region frequency conversion luffing.3, the utility model is owing to adopt input stage overcurrent-overvoltage under-voltage protection module; Input stage over-voltage and over-current under-voltage protection module is through being connected with the connection in series-parallel of main circuit; Detect the shunt voltage and the series current signal of input main circuit in real time; Judge relatively that through control logic major loop is broken off in protection under overvoltage, overcurrent, undervoltage condition.Therefore, effectively increase safety precautions, avoided because the power consumption equipment safety failure that the turbogenerator unstable working condition causes abnormality such as over-and under-voltage overcurrent to be brought, improved the fail safe and the reliability of total system.4, the utility model realizes that the high frequency pulsewidth voltage that the DC/DC switch converters is exported carries out filtering owing to adopt the secondary filtering output module at the main circuit output, and generates low ripple stable DC voltage.The utility model can be extensively used in electric tool in the oil well down-hole.
Description of drawings
Fig. 1 is the overall structure sketch map of the utility model;
Fig. 2 is the over-and under-voltage overcurrent protection module structural representation of the utility model.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is carried out detailed description.
As shown in Figure 1, the utility model comprises turbogenerator 1, rectification filtering module 2, input stage overcurrent-overvoltage under-voltage protection module 3, DC/DC switch converters 4, power source management controller 5 and secondary filtering output module 6.
After turbogenerator 1 is the high power AC electric energy with the Conversion of energy of drilling fluid; After rectification filtering module 2 converts alternating voltage into the big ripple voltage of direct current; Transfer to input stage overcurrent-overvoltage under-voltage protection module 3, realize the overvoltage of transmission circuit input, overcurrent and under-voltage protection.The voltage signal of input stage overcurrent-overvoltage under-voltage protection module 3 outputs is imported DC/DC switch converters 4 and power source management controller 5 respectively; Power source management controller 5 converts the voltage signal that receives into pwm signal; Transfer in the DC/DC switch converters 4 break-make of control DC/DC switch converters 4.DC/DC switch converters 4 outputs connect secondary filtering output module 6, and voltage signal generates low ripple stable DC voltage after 6 filtering of secondary filtering output module, input in the power source management controller 5, constitutes closed-loop control system.
In the foregoing description; Turbogenerator 1 is the high power AC electric energy with the Conversion of energy of drilling fluid; It is the running that drives turbogenerator 1 through the mud flow rate in the oilwell drilling process; Make kinetic energy that mud had convert the electric energy of turbogenerator 1 into, this electric energy has the characteristics of wide region frequency conversion luffing, and concrete output voltage amplitude frequency is relevant with the mud speed rate that passes through.
Among above-mentioned each embodiment; Rectification filtering module 2 comprises rectifying and wave-filtering bridge circuit and the big high temperature resistant electrochemical capacitor of capacity; The electric energy of turbogenerator 1 output converts unidirectional direct current into through the rectifying and wave-filtering bridge circuit; Import the high temperature resistant electrochemical capacitor energy storage of big capacity filtering, convert unidirectional direct current into direct current big ripple voltage output.
Among above-mentioned each embodiment; As shown in Figure 2; Second bleeder circuit 35 and overvoltage judge module 36 that input stage overcurrent-overvoltage under-voltage protection module 3 comprises first bleeder circuit 31 that is made up of two series resistance R1, R2, sensing resistor Rsense, FET Q1, under-voltage judge module 32, overcurrent judge module 33, master controller 34, is made up of two series resistance R3, R4; Wherein, under-voltage judge module 32, overcurrent judge module 33, master controller 34 and overvoltage judge module 36 are arranged in the controller 37.Input stage overcurrent-overvoltage under-voltage protection module 3 inputs are parallelly connected with first bleeder circuit 31, and input is also connected with sensing resistor Rsense and FET Q1 successively.First bleeder circuit 31 with detected input terminal voltage signal import in the under-voltage judge module 32 with preset under-voltage protection threshold ratio; Sensing resistor Rsense with in the detected current signal input overcurrent judge module 33 with preset overcurrent protection threshold ratio, under-voltage judge module 32 and overcurrent judge module 33 are respectively with its comparative result input master controller 34.FET Q1 source electrode connects input stage overcurrent-overvoltage under-voltage protection module 3 outputs, parallelly connected second bleeder circuit 35 between output and FET Q1 source electrode.Second bleeder circuit 35 with in the detected output end voltage signal input overvoltage judge module 36 with preset overvoltage protection threshold ratio, and comparative result imported in the master controller 34.Master controller 34 is according to each comparative result control FET Q1 disconnection/conducting, and when any one comparative result surpassed the protection threshold value, then FET Q1 broke off, otherwise, conducting.
Wherein, the under-voltage protection threshold value V in the under-voltage judge module 32
Undervoltage, the overcurrent protection threshold value I in the overcurrent judge module 33
OvercurrentAnd the overvoltage protection threshold value V in the overvoltage judge module 36
OvervoltageCan be provided with in advance through following formula respectively:
V
undervoltage＝V
in×(R2/(R1+R2))， (1)
I
overcurrent＝V
senseset/Rsense， (2)
V
overvoltage＝V
out×(R4/(R3+R4))， (3)
In the formula, V
InBe the input voltage of input stage overcurrent-overvoltage under-voltage protection module 3, V
UndervoltageBe under-voltage protection threshold values, V
OvervoltageBe overvoltage protection threshold values, I
OvercurrentBe overcurrent protection threshold values, V
SensesetBe sensing resistor Rsense two ends predeterminated voltage, V
OutIt is the output voltage of input stage overcurrent-overvoltage under-voltage protection module 3.
In use, as input voltage V
InThrough after the resistance R 1, R2 dividing potential drop greater than under-voltage protection threshold value V
UndervoltageThe time, then under-voltage protection logic-enabled; Work as output voltage V
OutThrough after the resistance R 3, R4 dividing potential drop greater than overvoltage protection threshold value V
OvervoltageThe time, the overvoltage protection logic-enabled; The pressure drop that produces through sensing resistor Rsense when electric current is greater than predeterminated voltage V
SensesetThe time, the electric current of the input stage of promptly flowing through overcurrent-overvoltage under-voltage protection module 3 is greater than overcurrent protection threshold values I
OvercurrentThe time, the overcurrent protection logic-enabled; Under, overvoltage under-voltage, the overcurrent protection logic-enabled situation when occurring, master controller 34 output cut-off signals, FET Q1 ends, and gets into protected mode, stops output.Need to prove that actual settings has certain difference with concrete theoretical calculation formula, those of ordinary skill in the art also need be provided with according to actual scene and situation.
Among above-mentioned each embodiment, power source management controller 5 comprises accessory power supply 51, logic control PWM maker 52, electric current and voltage feedback detector 53, output overvoltage over-current protecting unit 54 and logical AND not gate 55.After the high voltage direct current step-down of accessory power supply 51 with 3 inputs of input stage overcurrent-overvoltage under-voltage protection module, generate in the low pressure accessory power supply input logic control PWM maker 52, simultaneously, the low pressure accessory power supply also is power source management controller 5 power supplies.In the low ripple stable DC voltage difference input logic control PWM maker 52 and output overvoltage over-current protecting unit 54 that electric current and voltage feedback detector 53 will receive by 6 outputs of secondary filtering output module.Logic control PWM maker 52 is according to detecting the electric current and voltage feedback signal that obtains, with preset desired value relatively after, generate PWM output signal; Output overvoltage over-current protecting unit 54 compares feedback voltage current signal that receives and preset desired value; Judge that whether it surpass this desired value 10%, so with the control pwm signal of PWM output signal formation logic NAND gate 55 break-makes of logic control PWM maker 52.Control pwm signal input DC/DC switch converters 4, the break-make of control DC/DC switch converters 4, and then realize control to the conducting of the whole device transmission circuit of the utility model.Wherein, When the feedback voltage current signal that receives when output overvoltage over-current protecting unit 54 surpasses desired value 10%, then carry out the output over-voltage protection action, promptly DC/DC switch converters 4 gets into off states; Otherwise when being no more than desired value 10%, DC/DC switch converters 4 is the conducting controllable state.
Need to prove; Logic control PWM maker 52 can use the ASIC special chip to realize; Also can pass through general chip controls such as single-chip microcomputer, DSP, ARM realizes; Concrete control logic algorithm comprises but cloth is confined to common algorithms such as PID control, fuzzy control, and those of ordinary skill in the art also need carry out the concrete setting of parameter according to actual scene and situation.
In sum; The utility model can be the output electric energy of turbogenerator with the mobile power conversion that is had of down-hole slurry effectively; And further convert the D.C. regulated power supply that hangs down ripple high stability high security into, to offer the power supply supply of down-hole power consumption equipment stable and durable.
Above-mentioned each embodiment only is used to explain the utility model; The connection of each parts and structure all can change to some extent; On the basis of the utility model technical scheme; All improvement and equivalents of the connection and the structure of individual component being carried out according to the utility model principle all should not got rid of outside the protection range of the utility model.
Claims (8)
1. down-hole turbogenerator rectifying and voltage-stabilizing electric supply installation, it is characterized in that: it comprises turbogenerator, rectification filtering module, input stage overcurrent-overvoltage under-voltage protection module, DC/DC switch converters, power source management controller and secondary filtering output module; Said turbogenerator is imported the Conversion of energy of drilling fluid in the said rectification filtering module for the high power AC electric energy, transfers in the said input stage overcurrent-overvoltage under-voltage protection module after converting alternating voltage into direct current big ripple voltage; The voltage signal of said input stage overcurrent-overvoltage under-voltage protection module output is imported said DC/DC switch converters and power source management controller respectively; Said power source management controller converts the voltage signal that receives into pwm signal, transfers to said its break-make of DC/DC switch converters inner control; Said DC/DC switch converters output connects said secondary filtering output module, and voltage signal generates low ripple stable DC voltage after the filtering of said secondary filtering output module, input in the said power source management controller.
2. down-hole as claimed in claim 1 turbogenerator rectifying and voltage-stabilizing electric supply installation; It is characterized in that: said input stage overcurrent-overvoltage under-voltage protection module comprises first bleeder circuit that is made up of two series resistances, sensing resistor, FET, by second bleeder circuit and controller that two series resistances constitute, is provided with under-voltage judge module, overcurrent judge module, overvoltage judge module and master controller in the said controller;
Said input stage overcurrent-overvoltage under-voltage protection module input is parallelly connected with said first bleeder circuit, and input is also connected with said sensing resistor and FET successively; Said first bleeder circuit with detected input terminal voltage signal import in the said under-voltage judge module with preset under-voltage protection threshold ratio; Said sensing resistor with detected current signal import in the said overcurrent judge module with preset overcurrent protection threshold ratio, said under-voltage judge module and overcurrent judge module are imported said master controller with its comparative result respectively; Said FET source electrode connects said input stage overcurrent-overvoltage under-voltage protection module output, parallelly connected said second bleeder circuit between this output and said FET source electrode; Said second bleeder circuit is imported detected output end voltage signal in the said overvoltage judge module, with preset overvoltage protection threshold ratio, and comparative result imported in the said master controller; Said master controller is controlled said FET disconnection/conducting according to each comparative result.
3. down-hole as claimed in claim 2 turbogenerator rectifying and voltage-stabilizing electric supply installation is characterized in that: the under-voltage protection threshold value V in the said under-voltage judge module
UndervoltageFor:
V
undervoltage＝V
in×(R2/(R1+R2))，
In the formula, V
InBe the input voltage of said input stage overcurrent-overvoltage under-voltage protection module, R1, R2 are the resistance of two series connection in said first bleeder circuit.
4. down-hole as claimed in claim 2 turbogenerator rectifying and voltage-stabilizing electric supply installation is characterized in that: the overcurrent protection threshold value I in the said overcurrent judge module
OvercurrentFor:
I
overcurrent＝V
senseset/Rsense，
In the formula, V
SensesetBe said sensing resistor two ends predeterminated voltage, Rsense is the resistance of said sensing resistor.
5. down-hole as claimed in claim 2 turbogenerator rectifying and voltage-stabilizing electric supply installation is characterized in that: the overvoltage protection threshold value V in the said overvoltage judge module
OvervoltageFor:
V
overvoltage＝V
out×(R4/(R3+R4))，
In the formula, V
OutBe the output voltage of said input stage overcurrent-overvoltage under-voltage protection module, R3, R4 are the resistance of two series connection in said second bleeder circuit.
6. like claim 1 or 2 or 3 or 4 or 5 described down-hole turbogenerator rectifying and voltage-stabilizing electric supply installations, it is characterized in that: said power source management controller comprises accessory power supply, logic control PWM maker, electric current and voltage feedback detector, output overvoltage over-current protecting unit and logical AND not gate;
After the high voltage direct current step-down of said accessory power supply with said input stage overcurrent-overvoltage under-voltage protection module input, generate the low pressure accessory power supply and import in the said logic control PWM maker, and be said power source management controller power supply; The low ripple stable DC voltage by said secondary filtering output module output that said electric current and voltage feedback detector will receive is imported respectively in said logic control PWM maker and the output overvoltage over-current protecting unit; The electric current and voltage feedback signal that said logic control PWM maker obtains according to detection relatively generates PWM output signal in the back with preset desired value; Said output overvoltage over-current protecting unit compares feedback voltage current signal that receives and preset desired value; Judge that whether it surpass this desired value 10%, and generate the control pwm signal of said logical AND not gate break-make with the PWM output signal of said logic control PWM maker; The control pwm signal is imported said its break-make of DC/DC switch converters inner control.
7. like claim 1 or 2 or 3 or 4 or 5 described down-hole turbogenerator rectifying and voltage-stabilizing electric supply installations; It is characterized in that: said rectification filtering module comprises rectifying and wave-filtering bridge circuit and the big high temperature resistant electrochemical capacitor of capacity; The electric energy of said turbogenerator output converts unidirectional direct current into through said rectifying and wave-filtering bridge circuit; Import the high temperature resistant electrochemical capacitor energy storage of said big capacity filtering, convert unidirectional direct current into direct current big ripple voltage output.
8. down-hole as claimed in claim 6 turbogenerator rectifying and voltage-stabilizing electric supply installation; It is characterized in that: said rectification filtering module comprises rectifying and wave-filtering bridge circuit and the big high temperature resistant electrochemical capacitor of capacity; The electric energy of said turbogenerator output converts unidirectional direct current into through said rectifying and wave-filtering bridge circuit; Import the high temperature resistant electrochemical capacitor energy storage of said big capacity filtering, convert unidirectional direct current into direct current big ripple voltage output.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210119084.1A CN102647138B (en) | 2012-04-20 | 2012-04-20 | Rectifying voltage-stabilizing power supply device for underground turbine generator |
| CN2012201711933U CN202617058U (en) | 2012-04-20 | 2012-04-20 | Rectification and voltage stabilization power supply apparatus of underground turbine generator |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210119084.1A CN102647138B (en) | 2012-04-20 | 2012-04-20 | Rectifying voltage-stabilizing power supply device for underground turbine generator |
| CN2012201711933U CN202617058U (en) | 2012-04-20 | 2012-04-20 | Rectification and voltage stabilization power supply apparatus of underground turbine generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202617058U true CN202617058U (en) | 2012-12-19 |
Family
ID=72321923
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201711933U Expired - Lifetime CN202617058U (en) | 2012-04-20 | 2012-04-20 | Rectification and voltage stabilization power supply apparatus of underground turbine generator |
| CN201210119084.1A Active CN102647138B (en) | 2012-04-20 | 2012-04-20 | Rectifying voltage-stabilizing power supply device for underground turbine generator |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210119084.1A Active CN102647138B (en) | 2012-04-20 | 2012-04-20 | Rectifying voltage-stabilizing power supply device for underground turbine generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN202617058U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102647138A (en) * | 2012-04-20 | 2012-08-22 | 中国海洋石油总公司 | Rectifying voltage-stabilizing power supply device for underground turbine generator |
| TWI467356B (en) * | 2013-02-07 | 2015-01-01 | Sanyang Industry Co Ltd | Rectifier regulator |
| CN104333222A (en) * | 2014-11-03 | 2015-02-04 | 中国科学院声学研究所 | Logging-while-drilling apparatus power source |
| CN105074122A (en) * | 2013-04-18 | 2015-11-18 | 韦尔泰克有限公司 | Downhole tool capable of withstanding high temperatures |
| CN106099843A (en) * | 2016-05-05 | 2016-11-09 | 中国石油集团渤海钻探工程有限公司 | A kind of intelligent drilling tool power protection circuit and voltage and current guard method |
| CN106160461A (en) * | 2016-04-01 | 2016-11-23 | 北京安控科技股份有限公司 | A kind of functional safety power module |
| CN106405441A (en) * | 2016-11-13 | 2017-02-15 | 深圳市迅特通信技术有限公司 | Aging testing device for optical module |
| CN109103842A (en) * | 2018-09-03 | 2018-12-28 | 重庆惠科金渝光电科技有限公司 | Overcurrent protection driving circuit and display device |
| CN110676828A (en) * | 2019-11-04 | 2020-01-10 | 中国振华集团永光电子有限公司（国营第八七三厂） | Direct current surge suppression circuit |
| US11070047B2 (en) | 2018-09-03 | 2021-07-20 | Chongqing Hkc Optoelectronics Technology Co., Ltd. | Overcurrent protection driving circuit and display apparatus |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2562946B (en) | 2016-05-04 | 2024-04-03 | Halliburton Energy Services Inc | Overvoltage protection of downhole generators |
| CN106786593B (en) * | 2017-01-13 | 2023-08-08 | 陈元臣 | Agricultural machinery power supply system |
| CN108730104B (en) * | 2017-04-24 | 2020-11-24 | 通用电气公司 | Underground power generation system and optimized power control method thereof |
| CN107621290B (en) * | 2017-08-31 | 2023-07-04 | 宁波杰敏卫浴科技有限公司 | Flow detection device and flow detection method for bathroom |
| CN107947949A (en) * | 2017-12-28 | 2018-04-20 | 南京熊猫电子股份有限公司 | A kind of the time frequency system and control method of more extension set switching on and shutting down of host computer control |
| CN109256993A (en) * | 2018-11-20 | 2019-01-22 | 东莞市德克韦尔能源技术有限公司 | A kind of underground digital power system |
| CN112436767B (en) * | 2020-11-12 | 2023-01-10 | 漳州科华技术有限责任公司 | Voltage control method, system and device and vehicle-mounted converter |
| CN114294065B (en) * | 2021-12-30 | 2024-02-27 | 中控技术股份有限公司 | Pneumatic explosion-proof power supply device and implementation method thereof |
| CN115085544A (en) * | 2022-06-20 | 2022-09-20 | 浙江高泰昊能科技有限公司 | Full-load-range self-adaptive constant-voltage output device for BOOST discharge and working method thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101566060B (en) * | 2009-05-25 | 2013-03-20 | 中国海洋石油总公司 | Pressure detection device used for instruction issue in drilling operation |
| CN101841254A (en) * | 2010-03-05 | 2010-09-22 | 华南农业大学 | Piezoelectric generation low-power consumption power-supply system and power supply method thereof |
| CN202059345U (en) * | 2011-06-07 | 2011-11-30 | 宁德市泰格动力机械有限公司 | Inverter |
| CN102291012A (en) * | 2011-07-25 | 2011-12-21 | 上海科油石油仪器制造有限公司 | Energy storage and power conversion device for underground directional probe |
| CN202617058U (en) * | 2012-04-20 | 2012-12-19 | 中国海洋石油总公司 | Rectification and voltage stabilization power supply apparatus of underground turbine generator |
-
2012
- 2012-04-20 CN CN2012201711933U patent/CN202617058U/en not_active Expired - Lifetime
- 2012-04-20 CN CN201210119084.1A patent/CN102647138B/en active Active
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102647138A (en) * | 2012-04-20 | 2012-08-22 | 中国海洋石油总公司 | Rectifying voltage-stabilizing power supply device for underground turbine generator |
| CN102647138B (en) * | 2012-04-20 | 2014-06-11 | 中国海洋石油总公司 | Rectifying voltage-stabilizing power supply device for underground turbine generator |
| TWI467356B (en) * | 2013-02-07 | 2015-01-01 | Sanyang Industry Co Ltd | Rectifier regulator |
| CN105074122A (en) * | 2013-04-18 | 2015-11-18 | 韦尔泰克有限公司 | Downhole tool capable of withstanding high temperatures |
| CN104333222A (en) * | 2014-11-03 | 2015-02-04 | 中国科学院声学研究所 | Logging-while-drilling apparatus power source |
| CN106160461A (en) * | 2016-04-01 | 2016-11-23 | 北京安控科技股份有限公司 | A kind of functional safety power module |
| CN106099843A (en) * | 2016-05-05 | 2016-11-09 | 中国石油集团渤海钻探工程有限公司 | A kind of intelligent drilling tool power protection circuit and voltage and current guard method |
| CN106405441A (en) * | 2016-11-13 | 2017-02-15 | 深圳市迅特通信技术有限公司 | Aging testing device for optical module |
| CN106405441B (en) * | 2016-11-13 | 2023-08-04 | 深圳市迅特通信技术股份有限公司 | Aging test device of optical module |
| CN109103842A (en) * | 2018-09-03 | 2018-12-28 | 重庆惠科金渝光电科技有限公司 | Overcurrent protection driving circuit and display device |
| WO2020048009A1 (en) * | 2018-09-03 | 2020-03-12 | 重庆惠科金渝光电科技有限公司 | Overcurrent protection driving circuit and display device |
| US11070047B2 (en) | 2018-09-03 | 2021-07-20 | Chongqing Hkc Optoelectronics Technology Co., Ltd. | Overcurrent protection driving circuit and display apparatus |
| CN110676828A (en) * | 2019-11-04 | 2020-01-10 | 中国振华集团永光电子有限公司（国营第八七三厂） | Direct current surge suppression circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102647138A (en) | 2012-08-22 |
| CN102647138B (en) | 2014-06-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202617058U (en) | Rectification and voltage stabilization power supply apparatus of underground turbine generator | |
| US11728724B2 (en) | Bypass circuit and method to bypass power modules in power system | |
| CN103384958B (en) | Power conversion device | |
| CN102638177B (en) | Two-way four-quadrant frequency converter | |
| JP6495426B2 (en) | Solar pump system and control method of solar pump system | |
| CN108979961B (en) | Safe operation protection system and protection method for small wind power generation system | |
| CN102143639A (en) | LED (Light Emitting Diode) driving circuit | |
| CN105162331A (en) | Paralleled current sharing technology-based switching power supply circuit | |
| CN203660897U (en) | Device used for testing underground coal mine AC voltage-stabilizing power source | |
| CN103441569B (en) | A kind of supervising device of line voltage instant jitter and method | |
| CN204623182U (en) | A kind of electric power wheel self-discharging vehicle AC Drive power circuit | |
| CN102170178A (en) | High-voltage transmission line current coupling electricity-getting device | |
| US20210351741A1 (en) | Safety Switch for Photovoltaic Systems | |
| CN101895208B (en) | Power supplier for negative pressure load | |
| CN102774916A (en) | Photovoltaic seawater desalting system | |
| CN204993069U (en) | Switching power supply circuit based on parallelly connected technique of flow equalizing | |
| JP2020074661A (en) | Bypass circuit and method for bypassing power module within power system | |
| CN203775041U (en) | Alternating-current power source based on dual voltage rectifying and BOOST circuits | |
| CN204046134U (en) | A kind of phase failure protector circuit | |
| US20230369965A1 (en) | Bypass Circuit and Method to Bypass Power Modules in Power System | |
| CN103427729A (en) | Rod pumped well group control system based on direct current bus | |
| CN104883103A (en) | Composite circuit integrating rectification, active filtering and energy consumption braking and control method thereof | |
| CN109802580B (en) | High-power direct-current voltage-stabilized power supply for petroleum drilling tool | |
| CN204761314U (en) | Be applied to electric power supply unit that gets of cable worker well | |
| CN203039338U (en) | A complementary energy acquiring circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20121219 Effective date of abandoning: 20140611 |
|
| RGAV | Abandon patent right to avoid regrant |