CN112398111A - Vehicle-mounted direct current power supply device and fracturing system - Google Patents
Vehicle-mounted direct current power supply device and fracturing system Download PDFInfo
- Publication number
- CN112398111A CN112398111A CN202011183069.4A CN202011183069A CN112398111A CN 112398111 A CN112398111 A CN 112398111A CN 202011183069 A CN202011183069 A CN 202011183069A CN 112398111 A CN112398111 A CN 112398111A
- Authority
- CN
- China
- Prior art keywords
- power supply
- voltage
- vehicle
- unit
- module
- 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.)
- Pending
Links
- 238000001914 filtration Methods 0.000 claims abstract description 14
- 244000261422 Lysimachia clethroides Species 0.000 claims abstract description 13
- 230000017525 heat dissipation Effects 0.000 claims description 12
- 238000009499 grossing Methods 0.000 claims description 6
- 238000012544 monitoring process Methods 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 2
- 238000013461 design Methods 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 8
- 230000001681 protective effect Effects 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000003245 coal Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J1/00—Circuit arrangements for dc mains or dc distribution networks
- H02J1/08—Three-wire systems; Systems having more than three wires
- H02J1/082—Plural DC voltage, e.g. DC supply voltage with at least two different DC voltage levels
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention relates to a vehicle-mounted direct current power supply device which is arranged on a carrier vehicle and comprises a high-voltage input unit, a rectifying unit and an output control unit, wherein the high-voltage input unit, the rectifying unit and the output control unit are respectively provided with a protection cabinet body, and the vehicle-mounted direct current power supply device comprises: the high-voltage input unit is arranged on a chassis part of the carrier vehicle and is used for performing voltage reduction operation on an external input power supply and outputting the voltage after voltage reduction to the rectifying unit; the rectification unit is arranged at the gooseneck part of the carrier vehicle and is used for performing rectification filtering operation on the voltage input from the high-voltage input unit so as to form a multi-path direct-current power supply; and the output control unit is arranged between the gooseneck part and the vehicle disk part of the carrier vehicle and is used for outputting the multi-path direct current power supply outwards. The scheme of the invention avoids the operation of unloading, transferring and hoisting when the power supply device designed by skid-mounting is on site, and solves the problems of large floor area and more occupied vehicles caused by the power supply device designed by one-to-one design.
Description
Technical Field
The present invention relates generally to the field of power supply. More particularly, the present invention relates to a vehicle mounted dc power supply and a fracturing system.
Background
With the deep exploration and development of the fields of oil fields, natural gas or coal mines and the like at home and abroad, the depths and development difficulties of oil wells, gas wells and water wells are continuously increased, the construction scale of the applied fracturing operation is larger and larger, and more fracturing trucks are used. However, the power supply devices of the prior art for the dc-powered electrically-driven variable frequency fracturing trucks are all of one-to-one design. For example, in a situation where at least 12 fracturing trucks are required for oil field exploration and development in some regions of the country, relatively many dc power supply devices are required. The large number of power supply devices not only occupy large area, but also occupy more transport vehicles. Further, a skid-mounted design is adopted for most of power supply devices, and the power supply devices need to be unloaded, hoisted, transferred and the like after being transported to an application site, so that great inconvenience is brought to the application of the power supply devices. In addition, the direct current power supply device applied in the prior art can only support the application of the domestic power supply input power supply of 10KV/50Hz, and cannot be directly applied to the application of high-voltage and high-frequency input power supplies similar to the North American market.
Disclosure of Invention
In order to solve the problems described in the above background art, in one aspect, the present invention provides a vehicle-mounted dc power supply apparatus which is arranged on a vehicle and includes a high voltage input unit, a rectifying unit, and an output control unit having respective protection cabinets, wherein:
the high-voltage input unit is arranged on a chassis part of the carrier vehicle, and is used for performing voltage reduction operation on an externally input power supply and outputting the voltage after voltage reduction to the rectifying unit;
the rectifying unit is arranged at a gooseneck part of the carrier vehicle and is used for performing rectifying and filtering operation on the voltage input from the high-voltage input unit so as to form a plurality of paths of direct-current voltages; and
the output control unit is arranged between the gooseneck part and the vehicle disk part of the carrying vehicle and used for outputting the multi-path direct-current power supply outwards.
In one embodiment, the output control unit is in communication connection with the high voltage input unit for control and protection of the external input power source.
In another embodiment, the high voltage input unit includes:
the wiring cavity is used for connecting an external input power supply;
the high-voltage distribution module is used for switching on or off an external input power supply connected to the wiring cavity, monitoring input voltage and/or current and collecting protection information;
the transformer is used for performing voltage reduction operation on an external input power supply so as to output alternating-current voltage and a plurality of auxiliary power supplies, and the transformer heat dissipation module is used for dissipating heat of the transformer during working; and
a transformer output module electrically connected with the rectifying unit for outputting the alternating voltage to the rectifying unit.
In yet another embodiment, the rectifying unit includes:
a rectification module for performing a rectification operation on the alternating voltage output by the transformer output module to form a direct voltage;
the rectification heat dissipation module is used for performing heat dissipation operation on the rectification unit; and
and the filtering output module is used for performing smoothing filtering and shunting output operation on the direct-current voltage output by the rectifying module so as to output a plurality of paths of direct-current power supplies.
In one embodiment, the filter output module includes:
a filter circuit for performing a smoothing filter operation on the direct current voltage output by the rectification module; and
and the short-circuit protection circuit comprises a multi-path protection circuit and is used for carrying out short-circuit protection on the direct current filter loop and outputting multi-path direct current power supplies.
In another embodiment, the output control unit includes:
the power output module is respectively electrically connected with the filtering output module and the transformer and is used for outputting a plurality of paths of direct current power supplies and a plurality of paths of auxiliary power supplies; and
and the control module is electrically connected with the high-voltage power distribution module, is used for controlling the high-voltage power distribution module to switch on or switch off the external input power supply according to the received external instruction, and receives the protection information from the high-voltage power distribution module so as to send the protection information to a remote upper control system.
In one embodiment, the wiring cavity has terminals for accessing external input power at a plurality of voltages and frequencies.
In another embodiment, the external input power source comprises a 13.8KV/60Hz or 10KV/50Hz power source.
In yet another embodiment, the multiple DC power supplies comprise multiple DC power supplies rated at 4800V and 3350 KW.
In another aspect, the present invention provides a fracturing system comprising:
carrying out variable frequency fracturing truck; and
the dc power supply device of the foregoing aspect and its various embodiments is used for supplying power to the variable frequency fracturing truck.
Through the above description, it can be understood that the vehicle-mounted direct-current power supply device provided by the invention can be arranged on a carrier loader, so that the work of unloading, hoisting, transferring and the like when the skid-mounted direct-current power supply device is transported to an application site is avoided, and the installation difficulty is obviously reduced. Furthermore, the direct current power supply device can output a plurality of direct current power supplies so as to supply power to a plurality of variable frequency fracturing trucks at the same time, thereby solving the problems of numerous power supply devices and large occupied area in the one-to-one power supply design in the prior art. In addition, the scheme of the invention can be applied to 13.8KV/60Hz input power supplies in the North American market, and can also be downward compatible with the application similar to domestic 10KV/50Hz input power supplies, thereby expanding the application scenes.
Drawings
The above and other objects, features and advantages of exemplary embodiments of the present disclosure will become readily apparent from the following detailed description read in conjunction with the accompanying drawings. Several embodiments of the present disclosure are illustrated by way of example, and not by way of limitation, in the figures of the accompanying drawings and in which like reference numerals refer to similar or corresponding parts and in which:
fig. 1 is a schematic diagram showing a vehicle-mounted dc power supply apparatus according to an embodiment of the present invention;
fig. 2 is a schematic configuration diagram showing a vehicle-mounted dc power supply apparatus according to an embodiment of the present invention;
fig. 3 is a detailed schematic diagram showing a vehicle-mounted dc power supply apparatus according to an embodiment of the present invention; and
fig. 4 is a schematic configuration diagram illustrating a dc power supply device according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure, and it is obvious that the described embodiments are some, but not all embodiments of the present disclosure. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.
Specific embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.
Fig. 1 is a schematic diagram showing a vehicle-mounted dc power supply apparatus 100 according to an embodiment of the present invention. As shown in fig. 1, the present invention provides a vehicle-mounted dc power supply apparatus 100, which can be disposed on a vehicle (such as a trailer or trailer). In one embodiment, the dc power supply device 100 may include a high voltage input unit 110, a rectifying unit 120, and an output control unit 130 having respective protection cabinets. In an application scenario, the vehicle-mounted dc power supply device of the present invention can beneficially arrange each unit according to the current structure of the trailer and according to the characteristics and connection relationship of each unit of the dc power supply device. In view of this, the present invention proposes a direct current power supply device arranged on a trailer as shown in fig. 1, for example. The trailer may include a gooseneck portion and a pan portion, with the gooseneck portion being proximate to a nose portion of the tractor (not shown). Specifically, a portion of the trailer on the left side where the rectifying unit 120 is disposed is a gooseneck portion, and a portion of the trailer on the right side where the high voltage input unit 110 is disposed is a pan portion. According to an aspect of the present invention, the control output unit 130 is disposed between the gooseneck portion and the undercarriage portion.
As can be seen from fig. 1, the horizontal position of the gooseneck portion is slightly higher than the vehicle pan portion. The integral structure of the high-voltage input unit has a relatively high height after being fixed compared with the integral structure of the rectifying unit. For the purpose of convenient transportation, the height difference of the whole structure after the two units are fixed is kept relatively small as much as possible. The invention therefore proposes to arrange the rectification unit in a goose neck portion which is relatively high in horizontal position. In addition, the high-voltage input unit is also externally connected with an input power supply, and compared with the rectifying unit, the high-voltage input unit can have relatively more daily maintenance operations. In view of this, the invention proposes to arrange the high-pressure input unit at the tray portion for subsequent maintenance operations. Further, since the output control unit needs to be electrically connected to the high voltage input unit and the rectifying unit, respectively, in order to make the overall structure compact and facilitate an operator to perform an external wiring operation on the output control unit, the present invention proposes to arrange it between the gooseneck portion and the undercarriage portion (i.e., between the rectifying unit and the high voltage input unit).
In order to facilitate understanding of the overall architecture of the dc power supply device, fig. 2 shows the connection relationship between the units thereof. As can be seen from fig. 2, an external input power is connected to the high voltage input unit 110. The high-voltage input unit, the rectifying unit and the output control unit are electrically connected in sequence. The output control unit is electrically connected with the high-voltage input unit, and interactive information and control signals (or control instructions) are arranged between the output control unit and the high-voltage input unit. Specifically, an external input power source (for example, an alternating current power source of 13.8KV/60Hz or 10KV/50Hz) can be connected from the high-voltage input unit to provide an operating power source for the dc power supply device of the present invention. Then, the high voltage input unit performs a step-down operation on the external input power source, and outputs the stepped-down voltage to the rectifying unit. Then, the rectifying unit performs a rectifying and filtering operation on the voltage input from the high voltage input unit to form a plurality of (e.g., 6) direct current voltages. Finally, the multi-path direct current voltage formed by the rectifying unit is output outwards through the output control unit so as to be used for providing a direct current power supply for a plurality of external devices (such as variable frequency fracturing trucks).
Fig. 3 shows a detailed schematic diagram of a vehicle-mounted dc power supply apparatus according to an embodiment of the present invention. Fig. 3 is a rear view of the vehicle-mounted dc power supply device shown in fig. 1. The high voltage input unit 110 may include a wiring cavity 111, which is a protection cabinet having an inner cavity and is disposed at a rear surface of the high voltage input unit. In one application scenario, the wiring cavity has a plurality of terminals. An external input power supply of 13.8KV/60Hz can be connected to the high-voltage input unit by using a plurality of terminals in the 13.8KV wiring cavity.
As shown in the lower diagram of fig. 3, the high voltage input unit 110 disposed at the vehicle body part may include a high voltage distribution module 112, which may be used to turn on or off an external input power source connected to the wiring cavity, or may also monitor the voltage and/or current of the external input power source and collect related fault protection information. In one embodiment, a high voltage power distribution module (e.g., 13.8KV) may include switching circuitry and control protection circuitry. The switching circuit may turn on or off the external input power according to a received control signal (described later in conjunction with fig. 3). The control protection circuit can be used for carrying out breaking fault current protection, overvoltage protection (such as lightning protection) and overcurrent protection on the main circuit, and monitoring and collecting relevant fault information in real time. In an application scenario, after the switch circuit is turned on to connect the external input power supply, when the control protection circuit detects that the external input power supply is short-circuited, the switch circuit may be controlled to turn off the external input power supply.
After the external input power is connected, the high voltage input unit 110 may further include a transformer 113, a transformer heat dissipation module 114 fixed to an upper portion of the transformer, and a transformer output module 115. The transformer (e.g., a dry-type phase-shift rectifier transformer) may be used to perform a step-down operation on an external input power to output an ac voltage and a plurality of auxiliary power (described later in conjunction with fig. 4).
In some application scenarios, for the purposes of easy assembly, disassembly and heat dissipation, the transformer may be fixed on the pry base and fixed together with the pry base inside the protection cabinet of the high-voltage input unit. The transformer heat dissipation module is fixed on the upper part of the transformer, and can dissipate heat of the transformer during working by using a centrifugal fan. For the purpose of heat dissipation, the protection cabinet body of the transformer heat dissipation module can have a protection and ventilation cabinet body structure. In addition, the lower half of the protective cabinet of the transformer part shown in fig. 1 can also be provided with a protective ventilated cabinet structure. Further, the transformer output module is electrically connected to the rectifying unit, and may be configured to output the ac voltage after the voltage reduction by the transformer to the rectifying unit.
After the high voltage input unit completes the step-down operation of the external input power supply, the stepped-down voltage may be used as the input voltage of the rectification unit. The rectifying unit 120 may include a rectifying module 121 and a rectifying and heat dissipating module 122. The rectifying module 120 may be configured to perform a rectifying operation on the ac voltage output by the transformer output module to form a dc voltage. The rectifying and heat dissipating module 122 may be used to perform a heat dissipating operation on the rectifying unit. For example, the rectifying and heat dissipating module may dissipate heat of the power device of the rectifying unit in an air-water cooling manner. Similarly, the protective cabinet body of the rectification heat dissipation module part can also adopt a cabinet body structure with protective ventilation.
In one embodiment, the rectifying unit 120 may further include a filter output module 123, which is configured to perform smoothing and splitting output operations on the dc voltage output by the rectifying module, so as to output multiple dc power sources. The filtering output module may include a filtering circuit 1232 and a short-circuit protection circuit 1231. The filter circuit may be configured to perform a smoothing operation on the dc voltage output from the rectifying module. The short-circuit protection circuit may include a multi-path protection circuit. Each path of the multi-path protection circuit can be used for performing short-circuit protection on the direct-current voltage output by the direct-current filter loop and outputting a multi-path direct-current power supply. In an application scenario, the scheme of the invention can output 6 paths of 3350KW/4800V direct current power supplies. Based on the vehicle-mounted direct current power supply device, the vehicle-mounted direct current power supply device can be used for simultaneously supplying power to 3 double-pump variable-frequency fracturing trucks on a construction site. When every two ways can supply power for one variable frequency fracturing truck, only two sets of direct current power supply devices of the scheme are needed to complete power supply. It can be seen that the design of the vehicle-mounted direct-current power supply device completely avoids the problems of multiple transport vehicles and large occupied area caused by one-to-one power supply design in the prior art.
Further, in order to avoid the situation that the total power of the 6 paths of direct current power supplies is not overloaded but single-path overloaded, the invention also provides a method for arranging the direct current fuses for each path of the 6 paths of direct current power supplies to carry out short-circuit protection, so that the situation that the single-path power is overloaded is avoided. In addition, it should be understood by those skilled in the art that the structure of the vehicle-mounted power supply device disposed on the trailer described in conjunction with fig. 1-3 is merely exemplary and not limiting, and those skilled in the art may also dispose it on other types of vehicles according to actual needs, or use other ways to implement the spatial arrangement of the modules or units of the present invention.
The overall structural layout of the vehicle-mounted dc power supply device and the functions of the high voltage input unit and the rectifying unit are described in detail above with reference to fig. 1 to 3, and the structural functions of the output control unit 130 will be exemplarily described below with reference to fig. 4.
Fig. 4 is a schematic configuration diagram illustrating a dc power supply device according to an embodiment of the present invention. The dc power supply device shown in fig. 4 is based on the architecture of the vehicle-mounted dc power supply device shown in fig. 1 to 3. Therefore, the technical details of the dc power supply apparatus described in conjunction with fig. 1 to 3 are also applicable to fig. 4, and will not be described herein again.
As shown in fig. 4, an external input power enters the high voltage power distribution module 112 through the access cavity 111. The high voltage power distribution module 112 is electrically connected to the output control unit 130. The output control unit may include a control module 132 electrically connected to the high voltage power distribution module. In one embodiment, the control module may form a control signal (or a control instruction) according to an external instruction received from a remote upper control system, and control the high-voltage power distribution module to perform an operation of turning on or off the external input power according to the control signal. Additionally or alternatively, the control module may also receive real-time monitoring information (e.g., overvoltage or overcurrent protection information) from the high voltage power distribution module for the external input power source and send the information to the upper control system.
In one embodiment, the output control unit may further include a power output module 131 electrically connected to the filtering output module 123 and the transformer 113, respectively. As mentioned above, after the external input power is connected, the high voltage input unit and the rectifying unit are used to output a plurality of paths of dc power through the filtering output module. Further, the multiple direct current power supplies are output to the outside through the power output module 131, so as to supply power to external equipment (such as a variable frequency fracturing truck). In addition, the secondary side voltage of the transformer can form a plurality of auxiliary power supplies besides outputting the input voltage of the rectifying unit. The multi-path auxiliary power supply (for example, a 6-path 380V alternating current power supply) can be directly output through the power supply output module to be used for supplying power to auxiliary equipment of external equipment.
In one application scenario, when the external input power is 13.8KV/60 Hz. According to the scheme of the invention, in order to output 6 paths of direct current power supply with the rated voltage of 4800V and the rated power of 3350KW, a 13.8KV wiring cavity, a high-voltage distribution module with the rated voltage of 13.8KV and a transformer with the capacity of 19500KVA and the frequency of 60Hz can be used. Further, the high voltage input unit may not only support a specific high voltage and high frequency input power (e.g., 13.8KV/60Hz), but may also be downward compatible with different voltage and/or frequency input power (e.g., 10KV/50 Hz).
In addition, based on the above description, those skilled in the art will also appreciate that the present invention actually discloses a fracturing system, which may include a variable frequency fracturing truck and a dc power supply (as shown in fig. 1-3). The direct current power supply device can be used for supplying power to a plurality of variable-frequency fracturing trucks.
In the above description of the present specification, the terms "fixed," "mounted," "connected," or "connected," and the like, are to be construed broadly unless otherwise expressly specified or limited. For example, with the term "coupled", it can be fixedly coupled, detachably coupled, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship. Therefore, unless the specification explicitly defines otherwise, those skilled in the art can understand the specific meaning of the above terms in the present invention according to specific situations.
From the above description of the present specification, those skilled in the art will also understand the terms used below, terms indicating orientation or positional relationship such as "upper", "lower", "front", "rear", "left", "right", "length", "width", "thickness", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", "central", "longitudinal", "transverse", "clockwise" or "counterclockwise" and the like are based on the orientation or positional relationship shown in the drawings of the present specification, it is for the purpose of facilitating the explanation of the invention and simplifying the description, and it is not intended to state or imply that the devices or elements involved must be in the particular orientation described, constructed and operated, therefore, the above terms of orientation or positional relationship should not be construed or interpreted as limiting the present invention.
In addition, the terms "first" or "second", etc. used in this specification are used to refer to numbers or ordinal terms for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present specification, "a plurality" means at least two, for example, two, three or more, and the like, unless specifically defined otherwise.
While various embodiments of the present invention have been shown and described herein, it will be obvious to those skilled in the art that such embodiments are provided by way of example only. Numerous modifications, changes, and substitutions will occur to those skilled in the art without departing from the spirit and scope of the present invention. It should be understood that various alternatives to the embodiments of the invention described herein may be employed in practicing the invention. It is intended that the following claims define the scope of the invention and that the module compositions, equivalents, or alternatives falling within the scope of these claims be covered thereby.
Claims (10)
1. The utility model provides a vehicular DC power supply unit, its arranges on carrier loader and include high voltage input unit, rectifier unit and the output control unit that has each protection cabinet body, wherein:
the high-voltage input unit is arranged on a chassis part of the carrier vehicle and used for performing voltage reduction operation on an external input power supply and outputting the voltage after voltage reduction to the rectifying unit;
the rectifying unit is arranged at a gooseneck part of the carrier vehicle and is used for performing rectifying and filtering operation on the voltage input from the high-voltage input unit so as to form a multi-path direct-current power supply; and
the output control unit is arranged between the gooseneck part and the vehicle disk part of the carrying vehicle and used for outputting the multi-path direct-current power supply outwards.
2. The vehicle-mounted direct current power supply device according to claim 1, wherein the output control unit is in communication connection with the high voltage input unit for control and protection of the external input power supply.
3. The vehicle-mounted direct-current power supply device according to claim 2, wherein the high-voltage input unit includes:
the wiring cavity is used for connecting an external input power supply;
the high-voltage distribution module is used for switching on or off an external input power supply connected to the wiring cavity, monitoring input voltage and/or current and collecting protection information;
the transformer is used for performing voltage reduction operation on an external input power supply so as to output alternating-current voltage and a plurality of auxiliary power supplies, and the transformer heat dissipation module is used for dissipating heat of the transformer during working; and
a transformer output module electrically connected with the rectifying unit for outputting the alternating voltage to the rectifying unit.
4. The vehicle-mounted direct-current power supply device according to claim 3, wherein the rectifying unit includes:
a rectification module for performing a rectification operation on the alternating voltage output by the transformer output module to form a direct voltage;
the rectification heat dissipation module is used for performing heat dissipation operation on the rectification unit; and
and the filtering output module is used for performing smoothing filtering and shunting output operation on the direct-current voltage output by the rectifying module so as to output a plurality of paths of direct-current power supplies.
5. The vehicle-mounted direct-current power supply device according to claim 4, wherein the filter output module comprises:
a filter circuit for performing a smoothing filter operation on the direct current voltage output by the rectification module; and
and the short-circuit protection circuit comprises a multi-path protection circuit and is used for carrying out short-circuit protection on the direct current filter loop and outputting multi-path direct current power supplies.
6. The vehicle-mounted direct-current power supply device according to claim 5, wherein the output control unit includes:
the power output module is respectively electrically connected with the filtering output module and the transformer and is used for outputting a plurality of paths of direct current power supplies and a plurality of paths of auxiliary power supplies; and
and the control module is electrically connected with the high-voltage power distribution module, is used for controlling the high-voltage power distribution module to switch on or switch off the external input power supply according to the received external instruction, and receives the protection information from the high-voltage power distribution module so as to send the protection information to a remote upper control system.
7. The vehicle mounted dc power supply of claim 3, wherein said wiring cavity has terminals for receiving external input power of a plurality of voltages and frequencies.
8. The vehicle-mounted direct-current power supply device according to claims 1 to 7, wherein the external input power source includes a power source of 13.8KV/60Hz or 10KV/50 Hz.
9. The vehicle-mounted dc power supply according to any one of claims 1 to 8, wherein the multiple dc power supplies include multiple dc power supplies having a rated voltage of 4800V and a rated power of 3350 KW.
10. A fracturing system, comprising:
carrying out variable frequency fracturing truck; and
the dc supply device according to any one of claims 1-9, for powering a variable frequency fracturing truck.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011183069.4A CN112398111A (en) | 2020-10-29 | 2020-10-29 | Vehicle-mounted direct current power supply device and fracturing system |
| PCT/CN2020/136611 WO2022088424A1 (en) | 2020-10-29 | 2020-12-15 | Vehicle-mounted direct-current power supply apparatus and fracturing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011183069.4A CN112398111A (en) | 2020-10-29 | 2020-10-29 | Vehicle-mounted direct current power supply device and fracturing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112398111A true CN112398111A (en) | 2021-02-23 |
Family
ID=74598394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011183069.4A Pending CN112398111A (en) | 2020-10-29 | 2020-10-29 | Vehicle-mounted direct current power supply device and fracturing system |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN112398111A (en) |
| WO (1) | WO2022088424A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022227969A1 (en) * | 2021-04-26 | 2022-11-03 | 烟台杰瑞石油装备技术有限公司 | Power supply method and power supply system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208548823U (en) * | 2018-07-31 | 2019-02-26 | 中车永济电机有限公司 | A kind of Frac unit equipment power drive system electric-controlled house |
| CN110107490A (en) * | 2019-05-30 | 2019-08-09 | 宝鸡石油机械有限责任公司 | Integral type frequency conversion pressure break pumps apparatus control system and control method |
| CN110155193A (en) * | 2019-06-13 | 2019-08-23 | 烟台杰瑞石油装备技术有限公司 | A kind of electricity drive pressure break power supply semitrailer |
| CN110649859A (en) * | 2019-09-12 | 2020-01-03 | 四川宏华电气有限责任公司 | High-power fracturing drive heat dissipation room |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7573145B2 (en) * | 2006-11-16 | 2009-08-11 | Cummins Power Generation Ip, Inc. | Electric power generation system controlled to reduce perception of operational changes |
| US20150238914A1 (en) * | 2014-02-27 | 2015-08-27 | Schlumberger Technology Corporation | Integrated process delivery at wellsite |
| US10855142B2 (en) * | 2016-04-19 | 2020-12-01 | Supreme Electrical Services, Inc. | Power system for well service pumps |
| CN108900136A (en) * | 2018-07-31 | 2018-11-27 | 中车永济电机有限公司 | A kind of multiphase Frac unit electric driving control system |
-
2020
- 2020-10-29 CN CN202011183069.4A patent/CN112398111A/en active Pending
- 2020-12-15 WO PCT/CN2020/136611 patent/WO2022088424A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208548823U (en) * | 2018-07-31 | 2019-02-26 | 中车永济电机有限公司 | A kind of Frac unit equipment power drive system electric-controlled house |
| CN110107490A (en) * | 2019-05-30 | 2019-08-09 | 宝鸡石油机械有限责任公司 | Integral type frequency conversion pressure break pumps apparatus control system and control method |
| CN110155193A (en) * | 2019-06-13 | 2019-08-23 | 烟台杰瑞石油装备技术有限公司 | A kind of electricity drive pressure break power supply semitrailer |
| CN110649859A (en) * | 2019-09-12 | 2020-01-03 | 四川宏华电气有限责任公司 | High-power fracturing drive heat dissipation room |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022227969A1 (en) * | 2021-04-26 | 2022-11-03 | 烟台杰瑞石油装备技术有限公司 | Power supply method and power supply system |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022088424A1 (en) | 2022-05-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2018204412B2 (en) | Device for charging at least one battery | |
| US7952225B2 (en) | Modular vehicle power system | |
| US7868588B2 (en) | Battery charger with wind tunnel cooling | |
| JP5214065B1 (en) | Electric car main circuit system | |
| AU2014321654B2 (en) | Liquid cooled electronic modules and methods for replacing the same | |
| AU2008363911B2 (en) | Forced-air-cooled type vehicular control device | |
| CN202320318U (en) | Train power supply system | |
| CA3180950A1 (en) | All-electric mobile power unit with variable outputs | |
| CN104648169A (en) | Power supplying device for electric locomotive and train | |
| CN112398111A (en) | Vehicle-mounted direct current power supply device and fracturing system | |
| CN107332122A (en) | A kind of data center's rack and data center's electric power system and method | |
| CN104160581B (en) | Include the charger of DC DC converters | |
| NL2022009B1 (en) | Multimodal charging of a load | |
| CN214069621U (en) | Mobile direct-current power supply combination vehicle for transformer substation | |
| KR20190134441A (en) | wireless power transfer device of fault-ride-through type using balancing transformer | |
| CN209815609U (en) | Multipurpose high-altitude operation breakdown van | |
| CN112290808A (en) | Rail transit vehicle and charging converter thereof | |
| US20130270903A1 (en) | Power supply arrangement for distribution of power | |
| CN103946050A (en) | Auxiliary power source device for vehicle | |
| CN217692792U (en) | Container formula frequency conversion room secondary power supply system | |
| CN213027820U (en) | Auxiliary converter for direct-current pure electric small train | |
| CN206446490U (en) | The automobile-used joint operating device of magnetically levitated flywheel ups power | |
| CN210693749U (en) | Converter cabinet | |
| CN110112890A (en) | A kind of excessive phase current transformer of train | |
| CN216625001U (en) | Traction and auxiliary power supply system of straddle type monorail vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210223 |