CN216390508U - Direct current distribution control system - Google Patents
Direct current distribution control system Download PDFInfo
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- CN216390508U CN216390508U CN202122577998.XU CN202122577998U CN216390508U CN 216390508 U CN216390508 U CN 216390508U CN 202122577998 U CN202122577998 U CN 202122577998U CN 216390508 U CN216390508 U CN 216390508U
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Abstract
A direct current power distribution control system comprising: one-level DC distribution box, second grade DC distribution box, monitoring device, power supply unit and consumer, wherein, one-level DC distribution box respectively with second grade DC distribution box monitoring device with power supply unit connects, second grade DC distribution box with consumer connects. The grading distribution from the first-level direct-current distribution box to the second-level direct-current distribution box is realized, the reliability is high, the performance is stable, the application of the domestic circuit breaker for the ship in a power grid is effectively promoted through the approval of a plurality of types of tests, and the quality is guaranteed; the communication interface adopts CAN communication, and the physics interface is nimble, and the bottom communication protocol is clear and definite, and the configuration is nimble, supports communication extension and system upgrade, and monitoring range is wide, CAN effectually realize in time monitoring and uploading the power consumption information of electric wire netting and power consumption load, does benefit to the power consumption demand and the distribution control of whole ship to all power supply unit.
Description
Technical Field
The utility model belongs to the technical field of power distribution systems, and particularly relates to a direct-current power distribution control system.
Background
In the field of current ship applications, the power distribution system is the core power of the ship. In the aspect of distribution box application, the traditional form is mostly adopted at present, the distribution box is only used for power distribution, the distribution technology is developed rapidly in China, the single power supply and distribution can not meet the intelligent requirements of the ship industry, and the adoption of the novel intelligent power distribution is inevitable.
The intelligent power distribution for ships in China starts late, and although the requirements of the intelligent power distribution box on production, processing, production process and the like can be basically met, due to the lack of related key technology support and necessary detection and verification capabilities, mature design schemes and complete equipment required by customers cannot be provided.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention provides a dc power distribution control system that overcomes, or at least partially solves, the above problems.
In order to solve the above technical problem, the present invention provides a dc power distribution control system, including: one-level DC distribution box, second grade DC distribution box, monitoring device, power supply unit and consumer, wherein, one-level DC distribution box respectively with second grade DC distribution box monitoring device with power supply unit connects, second grade DC distribution box with consumer connects.
Preferably, the primary dc distribution box includes: control panel, one-level busbar, communication acquisition unit, circuit breaker and contactor, wherein, one-level busbar respectively with control panel the communication acquisition unit the circuit breaker the contactor with power supply unit connects, communication acquisition unit respectively with second grade DC distribution box with monitoring device connects, the circuit breaker with the contactor respectively with second grade DC distribution box connects.
Preferably, the control panel is provided with an action switch and an input device, and the input device is a circuit breaker handle or a cascade switch.
Preferably, the communication acquisition unit is connected with the monitoring device and the second-stage direct current distribution box through CAN communication lines respectively.
Preferably, the secondary dc distribution box includes: the secondary bus bar is respectively connected with the display control module unit, the power distribution control unit and the communication module unit, the communication module unit is respectively connected with the primary direct current distribution box, the display control module unit and the power distribution control unit, the display control module unit is connected with the operation panel, and the power distribution control unit is connected with the power utilization equipment.
Preferably, the communication module unit is connected with the display control module unit and the power distribution control unit through a CAN communication line respectively.
Preferably, the primary dc distribution box is connected to the monitoring device through a CAN communication line.
Preferably, the primary dc distribution box is electrically hard-wired to the power supply device.
Preferably, the secondary dc distribution box is electrically hard-wired to the consumer.
Preferably, two said second grade direct current block terminal connect through CAN communication line.
One or more technical solutions in the embodiments of the present invention have at least the following technical effects or advantages:
(1) the grading power distribution from the first-stage direct-current distribution box to the second-stage direct-current distribution box is realized, the reliability is high, the performance is stable, the application of the domestic circuit breaker for the ship in a power grid is effectively promoted through the approval of a plurality of types of tests, and the quality is guaranteed;
(2) the communication interface adopts CAN communication, the physical interface is flexible, the bottom layer communication protocol is clear, the configuration is flexible, the communication expansion and the system upgrade are supported, the monitoring range is wide, the power consumption information of a power grid and a power consumption load CAN be effectively monitored and uploaded in time, and the power consumption demand and distribution control of all power supply equipment by the whole ship are facilitated;
(3) the PWM electronic switch soft start key technology is adopted, the power distribution protection and stable control of the branch circuits are realized, the interference and impact to an external power grid are reduced, meanwhile, the high-precision voltage and current sampling self-correction technology, the differential sampling amplification and high-precision amplification circuit design are applied, the high-precision collection of the loads of the electric equipment of each branch circuit is realized, and the static error is extremely small.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.
Fig. 1 is a schematic block diagram of a dc power distribution control system according to an embodiment of the present invention;
fig. 2 is a schematic block diagram of a primary dc distribution box in a dc distribution control system according to an embodiment of the present invention;
fig. 3 is a schematic block diagram of a secondary dc distribution box in a dc distribution control system according to an embodiment of the present invention;
fig. 4 is a schematic view of an installation structure of a primary dc distribution box in a dc distribution control system according to an embodiment of the present invention;
fig. 5 is a schematic view of an installation structure of a secondary dc distribution box in a dc distribution control system according to an embodiment of the present invention;
fig. 6 is a schematic diagram of an operation of a dc power distribution control system according to an embodiment of the present invention.
Detailed Description
The present invention will be described in detail below with reference to specific embodiments and examples, and the advantages and various effects of the present invention will be more clearly apparent therefrom. It will be understood by those skilled in the art that these specific embodiments and examples are for the purpose of illustrating the utility model and are not to be construed as limiting the utility model.
Throughout the specification, unless otherwise specifically noted, terms used herein should be understood as having meanings as commonly used in the art. Accordingly, unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. If there is a conflict, the present specification will control.
Unless otherwise specifically stated, various raw materials, reagents, instruments, equipment and the like used in the present invention are commercially available or can be prepared by existing methods.
Referring to fig. 1, in an embodiment of the present application, the present invention provides a dc power distribution control system, including: one-level DC distribution box 10, second grade DC distribution box 20, monitoring device 30, power supply unit 40 and consumer 50, wherein, one-level DC distribution box 10 respectively with second grade DC distribution box 20 monitoring device 30 with power supply unit 40 connects, second grade DC distribution box 20 with consumer 50 connects.
In this embodiment, the power supply device 40 supplies power to the first-stage dc distribution box 10, the first-stage dc distribution box 10 distributes the power provided by the power supply device 40 and then transmits the power to the second-stage dc distribution box 20, and the second-stage dc distribution box 20 distributes the power and then transmits the power to the electric device 50. The monitoring device 30 can monitor the working states of the first-stage dc distribution box 10 and the second-stage dc distribution box 20, which is convenient for a user to monitor.
As shown in fig. 2, in the embodiment of the present application, the primary dc distribution box 10 includes: control panel 11, one-level busbar 12, communication acquisition unit 13, circuit breaker 14 and contactor 15, wherein, one-level busbar 12 respectively with control panel 11 communication acquisition unit 13 circuit breaker 14 contactor 15 with power supply unit 40 connects, communication acquisition unit 13 respectively with second grade DC distribution box 20 with monitoring device 30 connects, circuit breaker 14 with contactor 15 respectively with second grade DC distribution box 20 connects.
In the embodiment of the application, the circuit breaker 14 is a ship-borne molded case circuit breaker, the model of which is H-DZ48, the input end of the first-level busbar 12 is connected with the external power supply device 40 through an aerial plug and a hard wire, the input end of the ship-borne molded case circuit breaker is connected with the first-level busbar 12, the output end of the ship-borne molded case circuit breaker is connected with the second-level dc distribution box 20, the power input end of the communication acquisition unit 13 is connected with the first-level busbar 12, the communication end of the communication acquisition unit 13 is connected with the monitoring device 30, and the communication end of the communication acquisition unit 13 is connected with the second-level dc distribution box 20. Contactor 15 is solid state contactor 15, and the coil of solid state contactor 15 passes through the electrical hard wire connection with the control knob on the control panel 11, and the contact of solid state contactor 15 is connected with one-level busbar 12 and one-level DC distribution box 10.
In the embodiment of the present application, the control panel 11 is provided with an action switch and an input device, and the input device is a circuit breaker handle or a cascade switch. The communication acquisition unit 13 is connected with the monitoring device 30 and the secondary direct current distribution box 20 through a CAN communication line respectively.
In the embodiment of the present application, by adopting the above technical solution, the operation panel 25 can provide the control operation of the breaker handle or the cascade switch; the handle of the ship-based molded case circuit breaker is marked with an ON/OFF signal, so that a user can perform power distribution operation according to an operation manual; the cascade switch is a knob with a lamp, when the lamp is on, the lamp represents that electricity is input into the local first-stage direct-current distribution box 10, when the lamp is off, if the other first-stage direct-current distribution box 10 needs to be in cascade power supply, the cascade switch is rotated to a cascade gear; the communication acquisition unit 13 adopts CAN communication, and is used for forming a CAN network by the hand of the secondary DC distribution box 20 and the monitoring device 30, acquiring and uploading information of all DC power load equipment, and has high transmission stability; the solid-state contactor 15 is used for realizing cascade power supply of the one-level direct-current distribution box 10 at the same level, when the local one-level direct-current distribution box 10 normally supplies power, a contact of the solid-state contactor 15 is in an off state, when the local one-level direct-current distribution box 10 is cascade-powered by another one-level direct-current distribution box 10, the cascade switch is operated, and the contact of the solid-state contactor 15 is closed.
In this embodiment of the application, the primary dc distribution box 10 adopts a domestic breaker for ships to realize power supply control of the secondary dc distribution box 20, has protection functions such as overload and short circuit of the distribution equipment, has good shock resistance and high reliability, and adopts the communication acquisition unit 13 to realize electric quantity information data acquisition and uploading of the electric equipment 50.
As shown in fig. 3, in the embodiment of the present application, the two-stage dc distribution box 20 includes: second grade busbar 21, show accuse module unit 22, distribution control unit 23, communication module unit 24 and operating panel 25, wherein, second grade busbar 21 respectively with show accuse module unit 22 distribution control unit 23 with communication module unit 24 is connected, communication module unit 24 respectively with one-level DC distribution box 10 show accuse module unit 22 with distribution control unit 23 is connected, show accuse module unit 22 with operating panel 25 is connected, distribution control unit 23 with consumer 50 connects.
In this embodiment of the application, the input of second grade busbar 21 passes through electrical connection with one-level dc block terminal 10 and is connected, the output and the communication module unit 24 of second grade busbar 21 are connected, the output and the distribution control unit 23 of second grade busbar 21 are connected, the output and the display control unit of second grade busbar 21 are connected, display control module unit 22 power control port is connected with distribution control unit 23, distribution control unit 23 passes through electrical hardwire with consumer 50 and is connected, communication module unit 24 passes through CAN communication connection with one-level dc block terminal 10.
In the embodiment of the present application, the communication module unit 24, the display control module unit 22 and the power distribution control unit 23 are respectively connected through a CAN communication line.
In this application embodiment, second grade DC distribution box 20 realizes gathering and controlling the on-off state of distribution branch road, current voltage power information, and through CAN communication upload to one-level DC distribution box 10, one-level DC distribution box 10 uploads to monitoring device 30 after gathering data, concentrates demonstration and control, and data real-time sharing uploads, and communication is stable.
In this application embodiment, through adopting above-mentioned technical scheme, when second grade busbar 21 has the electricity, show accuse module unit 22 and link into through hard binding post, control output end and distribution control unit 23, communication module unit 24 is connected, show the distribution switch instruction of accuse module unit 22 output each branch road promptly, it should move to correspond distribution control unit 23 execution, carry out distribution output switch action, communication module unit 24 then gathers current distribution branch road state information in real time, the electric quantity data, upload to one-level DC distribution box 10 through CAN communication mode.
In this application embodiment, operating panel 25 provides the control switch of each branch road for showing the accuse unit to show information such as the electrified instruction of current branch road, communication state instruction, total power input instruction through the pilot lamp, do benefit to the distribution information direct look over of user of service to this block terminal.
In the embodiment of the present application, the secondary dc distribution box 20 employs a power electronic control technology, and supplies power to the electric equipment 50 through the on/off control of the MOSFET device, that is, the circuits such as MOSFET switch control, inductance current limiting buffer, and fault control are employed to perform power distribution, short circuit, overload protection, and the like on each branch, which is safe and stable.
In the embodiment of the present application, the primary dc distribution box 10 and the monitoring device 30 are connected through a CAN communication line.
In the embodiment of the present application, the primary dc distribution box 10 is electrically hard-wired to the power supply device 40.
In the embodiment of the present application, the secondary dc distribution box 20 is electrically connected to the electric device 50 through a hard wire.
In the embodiment of the present application, two of the two-stage dc distribution boxes 20 are connected by a CAN communication line.
Referring to fig. 4 and 5, in the embodiment of the present application, the primary dc distribution box 10 and the secondary dc distribution box 20 are fixed to the inner wall of the cabin by mounting horse feet.
The application has the following beneficial effects:
(1) the grading power distribution from the first-stage direct-current distribution box to the second-stage direct-current distribution box is realized, the reliability is high, the performance is stable, the application of the domestic circuit breaker for the ship in a power grid is effectively promoted through the approval of a plurality of types of tests, and the quality is guaranteed;
(2) the communication interface adopts CAN communication, the physical interface is flexible, the bottom layer communication protocol is clear, the configuration is flexible, the communication expansion and the system upgrade are supported, the monitoring range is wide, the power consumption information of a power grid and a power consumption load CAN be effectively monitored and uploaded in time, and the power consumption demand and distribution control of all power supply equipment by the whole ship are facilitated;
(3) the PWM electronic switch soft start key technology is adopted, the power distribution protection and stable control of the branch circuits are realized, the interference and impact to an external power grid are reduced, meanwhile, the high-precision voltage and current sampling self-correction technology, the differential sampling amplification and high-precision amplification circuit design are applied, the high-precision collection of the loads of the electric equipment of each branch circuit is realized, and the static error is extremely small.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element. The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
In short, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A direct current power distribution control system, comprising: one-level DC distribution box, second grade DC distribution box, monitoring device, power supply unit and consumer, wherein, one-level DC distribution box respectively with second grade DC distribution box monitoring device with power supply unit connects, second grade DC distribution box with consumer connects.
2. The dc power distribution control system of claim 1, wherein the primary dc power distribution box comprises: control panel, one-level busbar, communication acquisition unit, circuit breaker and contactor, wherein, one-level busbar respectively with control panel the communication acquisition unit the circuit breaker the contactor with power supply unit connects, communication acquisition unit respectively with second grade DC distribution box with monitoring device connects, the circuit breaker with the contactor respectively with second grade DC distribution box connects.
3. The direct current distribution control system of claim 2, wherein the control panel is provided with a motion switch and an input device, and the input device is a breaker handle or a cascade switch.
4. The dc power distribution control system according to claim 2, wherein the communication collection unit is connected to the monitoring device and the secondary dc distribution box via CAN communication lines, respectively.
5. The dc power distribution control system of claim 1, wherein the secondary dc power distribution box comprises: the secondary bus bar is respectively connected with the display control module unit, the power distribution control unit and the communication module unit, the communication module unit is respectively connected with the primary direct current distribution box, the display control module unit and the power distribution control unit, the display control module unit is connected with the operation panel, and the power distribution control unit is connected with the power utilization equipment.
6. The direct-current power distribution control system according to claim 5, wherein the communication module unit is connected with the display control module unit and the power distribution control unit through CAN communication lines, respectively.
7. The dc power distribution control system of claim 1, wherein the primary dc power distribution box is connected to the monitoring device via a CAN communication line.
8. The dc power distribution control system of claim 1, wherein the primary dc distribution box is electrically hard-wired to the power source device.
9. The dc power distribution control system of claim 1, wherein the secondary dc distribution box is electrically hard-wired to the powered device.
10. The dc power distribution control system of claim 1, wherein the two secondary dc distribution boxes are connected by a CAN communication line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122577998.XU CN216390508U (en) | 2021-10-25 | 2021-10-25 | Direct current distribution control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122577998.XU CN216390508U (en) | 2021-10-25 | 2021-10-25 | Direct current distribution control system |
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| Publication Number | Publication Date |
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| CN216390508U true CN216390508U (en) | 2022-04-26 |
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| CN202122577998.XU Active CN216390508U (en) | 2021-10-25 | 2021-10-25 | Direct current distribution control system |
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