CN203674712U - Multi-input direct current modular electrical system - Google Patents
Multi-input direct current modular electrical system Download PDFInfo
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- CN203674712U CN203674712U CN201320860601.0U CN201320860601U CN203674712U CN 203674712 U CN203674712 U CN 203674712U CN 201320860601 U CN201320860601 U CN 201320860601U CN 203674712 U CN203674712 U CN 203674712U
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- 230000002093 peripheral effect Effects 0.000 claims description 6
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- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
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- 230000005684 electric field Effects 0.000 description 1
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Abstract
The utility model provides a multi-input direct current modular electrical system, which comprises more than two AC/DC modules and more than two DC/DC modules; the system comprises more than two AC/DC modules, a power supply, a direct current bus, a power supply and a power supply, wherein the more than two AC/DC modules are arranged in parallel, the input end of each AC/DC module is connected with an external alternating current power supply, the output end of each AC; the input ends of more than two DC/DC modules are connected to the output end of the AC/DC module through a direct current bus, the output end of the DC/DC module is used for connecting a direct current low-voltage load, and the output end of the DC/DC module outputs direct current voltage. The utility model discloses a multi-input direct current modularization electrical system, the control of a plurality of rectifier modules and the ability allotment of each module solve the allotment problem of the energy of the multi-input rectifier quantity module, share the generating line problem; the problem of when increasing in the direct current electrical system load, the front end rectifier module system ability is not enough is solved, energy allotment between a plurality of rectifier modules is solved.
Description
Technical field
The utility model relates to electric field, relates in particular to a kind of multi-input direct current modular electric system.
Background technology
In DC electrical system design, when load is too much, the rectifying part of front end, by deficiency, cannot meet the needs of more multi-load.
Utility model content
In view of the present situation of prior art, the purpose of this utility model is to provide a kind of multi-input direct current modular electric system, solve the allotment problem of the energy of many input rectifyings quantity module, when in solution DC electrical system, load increases, the problem of front end rectification module system capability deficiency, solves the problem of energy allotment between multiple rectification modules.For achieving the above object, the technical solution of the utility model is as follows:
A kind of multi-input direct current modular electric system, comprises more than two AC/DC module and more than two DC/DC module;
Two the above AC/DC modules are arranged in parallel, the input of described AC/DC module connects peripheral hardware AC power, the output of described AC/DC module connects DC bus, the output output high direct voltage of described AC/DC module, and between two the above AC/DC modules, communication connects;
The input of two the above DC/DC modules is all connected to the output of AC/DC module by described DC bus, the output of described DC/DC module is used for connecting DC low-voltage load, described DC/DC module output output dc voltage.
More preferably, described DC bus is also connected with high direct voltage load.
More preferably, the quantity of described high direct voltage load is multiple.
More preferably, the quantity of described DC low-voltage load is multiple.
More preferably, described peripheral hardware AC power is single phase alternating current power supply or three-phase alternating-current supply.
More preferably, the output voltage of described DC/DC module is less than or equal to 36V.
More preferably, between described AC/DC module, adopt DC carrier wave communication.
The beneficial effects of the utility model are:
Multi-input direct current modular electric system of the present utility model, the control of multiple rectification modules and the ability of modules are allocated, and solve the allotment problem of the energy of many input rectifyings quantity module, common bus problem.When in solution DC electrical system, load increases, the problem of front end rectification module system capability deficiency, solves the problem of energy allotment between multiple rectification modules.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of multi-input direct current modular electric system structure of the present utility model one embodiment.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, multi-input direct current modular electric system of the present utility model is further elaborated.Should be appreciated that specific embodiment described herein is only for explaining the utility model, and be not used in restriction the utility model.
With reference to Fig. 1, multi-input direct current modular electric system one embodiment of the present utility model comprises more than two AC/DC module 1 and more than two DC/DC module 2;
Two the above AC/DC modules 1 are arranged in parallel, the input of described AC/DC module 1 connects peripheral hardware AC power, the output of described AC/DC module 1 connects DC bus 5, the output output high direct voltage of described AC/DC module, and between two the above AC/DC modules 1, communication connects; Described peripheral hardware AC power is single phase alternating current power supply or three-phase alternating-current supply.
The input of two the above DC/DC modules 2 is all connected to the output of AC/DC module 1 by DC bus 5, the output of DC/DC module 2 is used for connecting DC low-voltage load 4, DC/DC module 2 output output dc voltages.The output voltage of DC/DC module 2 is less than or equal to 36V.Between AC/DC module 1, adopt DC carrier wave communication.
DC bus 5 is also connected with high direct voltage load 3, and the quantity of high direct voltage load 3 is multiple.DC low-voltage load 4(the first load) quantity be multiple.
The multi-input direct current modular electric system of above-described embodiment comprises the following steps in control procedure:
S1, judges the power sum of described DC low-voltage load 4 and described high direct voltage load 3;
S2, the controller 6 of described multi-input direct current modular electric system, according to described power sum, is adjusted the operating state of AC/DC module 1.
More preferably, in step S2, the quantity of AC/DC module 1 is N, if when described power sum is less than or equal to the rated power of an AC/DC module 1, multi-input direct current modular electric system only has an AC/DC module 1 to work, and after N-1 other AC/DC module 1 interval Preset Time, works successively.For example Preset Time can be 8 hours.
More preferably, in step S2, the quantity of described AC/DC module is N, and in the time that described power sum is greater than the rated power sum of N-1 described AC/DC module, N described AC/DC module all comes into operation, the mean allocation output of each described AC/DC module.
More preferably, in step S2, in the operating state of critical point be:
After having increased M described AC/DC module, if P
n-M+ P*50%≤P
need≤ (P
n-M+ P*90%) time, described electrical system keeps the quantity of current module mode of operation, and wherein M-1 described AC/DC module has days off by turns, and other described AC/DC module is all located in running order;
If P
need> (P
n-2+ P*90%) time, described in last, AC/DC module comes into operation, and is distributed equally output, wherein, and P
n-Mrepresent N-M module rated power sum, P
needrepresent the needed power of load, P represents the rated power of single described AC/DC module.Between each module, adopt communication modes and master control to carry out information interchange, and by the signal command of which transmission control start and stop.
This electrical system comprises AC/DC module, DC/DC module, load blocks etc., and single-phase or three phase mains, after AC/DC, can directly be supplied with high direct voltage load, and is converted into DC36V and following low-tension supply through DC/DC module, supplies with low-voltage load.These loads all share same DC bus, and each unit is separate, can increase according to actual needs or reduce, also quantity increase according to actual needs or minimizing of front-end A C/DC module simultaneously.Between each module, use and cooperatively interact, carry out energy allotment.
Multi-input direct current modular electric system and the control method thereof of above embodiment, the control of multiple rectification modules and the ability of modules are allocated, and solve the allotment problem of the energy of many input rectifyings quantity module, common bus problem.When in solution direct current system, load increases, the problem of front end rectification module system capability deficiency, solves the problem of energy allotment between multiple rectification modules.
The above embodiment has only expressed several execution mode of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection range of the present utility model.Therefore, the protection range of the utility model patent should be as the criterion with claims.
Claims (7)
1. a multi-input direct current modular electric system, is characterized in that:
Comprise more than two AC/DC module and more than two DC/DC module;
Two the above AC/DC modules are arranged in parallel, the input of described AC/DC module connects peripheral hardware AC power, the output of described AC/DC module connects DC bus, the output output high direct voltage of described AC/DC module, and between two the above AC/DC modules, communication connects;
The input of two the above DC/DC modules is all connected to the output of AC/DC module by described DC bus, the output of described DC/DC module is used for connecting DC low-voltage load, described DC/DC module output output dc voltage.
2. multi-input direct current modular electric system according to claim 1, is characterized in that:
Described DC bus is also connected with high direct voltage load.
3. multi-input direct current modular electric system according to claim 2, is characterized in that:
The quantity of described high direct voltage load is multiple.
4. multi-input direct current modular electric system according to claim 1, its feature exists:
The quantity of described DC low-voltage load is multiple.
5. according to the multi-input direct current modular electric system described in claim 1-4 any one, it is characterized in that:
Described peripheral hardware AC power is single phase alternating current power supply or three-phase alternating-current supply.
6. multi-input direct current modular electric system according to claim 5, is characterized in that:
The output voltage of described DC/DC module is less than or equal to 36V.
7. multi-input direct current modular electric system according to claim 5, is characterized in that:
Between described AC/DC module, adopt DC carrier wave communication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320860601.0U CN203674712U (en) | 2013-12-24 | 2013-12-24 | Multi-input direct current modular electrical system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320860601.0U CN203674712U (en) | 2013-12-24 | 2013-12-24 | Multi-input direct current modular electrical system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203674712U true CN203674712U (en) | 2014-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320860601.0U Expired - Fee Related CN203674712U (en) | 2013-12-24 | 2013-12-24 | Multi-input direct current modular electrical system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104734140A (en) * | 2013-12-24 | 2015-06-24 | 珠海格力电器股份有限公司 | Multi-input direct-current modular electrical system and control method thereof |
-
2013
- 2013-12-24 CN CN201320860601.0U patent/CN203674712U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104734140A (en) * | 2013-12-24 | 2015-06-24 | 珠海格力电器股份有限公司 | Multi-input direct-current modular electrical system and control method thereof |
| CN104734140B (en) * | 2013-12-24 | 2018-02-09 | 珠海格力电器股份有限公司 | Multi-input direct-current modular electrical system and control method thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140625 Termination date: 20211224 |
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| CF01 | Termination of patent right due to non-payment of annual fee |