CN109167430A - A kind of distributed DC power - Google Patents
A kind of distributed DC power Download PDFInfo
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- CN109167430A CN109167430A CN201811090382.6A CN201811090382A CN109167430A CN 109167430 A CN109167430 A CN 109167430A CN 201811090382 A CN201811090382 A CN 201811090382A CN 109167430 A CN109167430 A CN 109167430A
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- module
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- power
- distributed
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- 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
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/061—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for DC powered loads
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- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Dc-Dc Converters (AREA)
Abstract
The invention discloses a kind of distributed DC powers, the distributed DC power includes mainboard and control panel, the control panel is mounted on mainboard, the first connecting terminal, the second connecting terminal and third connecting terminal are additionally provided on mainboard, the control panel includes AC/DC charge management module, DC/DC boost module and CPU intelligent control module, first connecting terminal is electrically connected with AC power source, and the second connecting terminal is electrically connected with battery, and third connecting terminal is electrically connected with load；The convert alternating current that the AC/DC charge management module is used to input AC power source exports 28V direct current；The 28V direct current charges a battery all the way, and another way is boosted by DC/DC boost module and exports 220V direct current powering load；AC/DC charge management module is also used to control the charging process of battery.
Description
Technical field
The present invention relates to technical field of direct current power, and in particular to a kind of distributed DC power.
Background technique
Distributing DC electric power apparatus is mainly used in the switchgear of various models, is main switch (breaker, load
Switch etc.) and the reliable direct current operative power source of secondary protector offer, it can satisfy microcomputer protecting device, indicator light, simulation
The power supply of indicator needs；When being battery powered, it is 8~24 hours, can be met according to battery capacity and load parameter
Most of 10KV system pull operation mechanism breakers such as VS1, VD4, ZN21, electric load switch energy storage for power supply need.
The main feature of distributing DC electric power apparatus includes:
1, dispersion installation saves occupied area, reduces cost, and according to Embedded design philosophy, JRXQF series is embedded
Continuous-current plant is directly installed in the instrument box of intelligent switchboard (or in electric operating case of outdoor installation), can save straight
Flow the occupied area of screen.Because power supply is in switchgear, the usage amount of cable can be reduced, saves primary equipment investment and cable construction
Workload；When total number of units is few, total price is lower than direct current screen system, can reduce project total cost；It can subtract at runtime simultaneously
Few line loss, reduces spare part, saves operating cost.
2, embedded power supply mode, reliability are greatly improved.Using Embedded power supply mode, when event occurs for certain primary Ioops
When barrier, the power supply device in other circuits is unaffected, avoids the occurrence of a point failure whole station without operation power, straight with centrally connected power supply
Stream screen is compared, and overall reliability is greatly improved.
3, a variety of I/O modes, it is applied widely.JRXQF series can provide direct current 220V according to the demand of client,
110V, 48V, 24V output, exchange input range are 85~265V, are flexibly applied to PT and mains-supplied.When exchanging power failure,
It is battery powered (two 12V batteries).
4, intelligent management is safeguarded, intelligent high-frequency power technology, from monitoring, self diagnosis, local can be shown, alarm,
Can connected network communication, realize unattended automation remote management.Internal battery automatic charging management module, automatically to battery
Intelligent even and float charging management is carried out, postpones the service life of battery significantly, makes to run relatively reliable and safe.
But distributing DC electric power apparatus (system of 220V) in the prior art includes following sections:
1. battery pack --- the battery of 18 section 12V.
2. several power modules.
3. monitoring --- management power module and battery pack.
This set direct current system is complicated, and cost is very high, is not suitable with for such as: the most of 10KV system bullets of VS1, VD4, ZN21
Grasp mechanism breaker etc..
In addition, traditional distributing DC electric power apparatus has 4-5 block pcb board, there are many connecting line, mixed and disorderly unordered, cause very
More hidden danger and uncertainty, it is at high cost and can not achieve and machine flows, at high cost, high failure rate.
Summary of the invention
In order to solve the above technical problem, the present invention provides a kind of distributed DC powers not to be had using two pieces of pcb boards
Connecting line, science layout, can be realized and machine flows and (under many occasions, is not allow for the case where powering off.In order to ensure not
Power-off is it is necessary to there is device backup).
To achieve the above object, distributed DC power of the present invention includes mainboard and control panel, the control
Plate is mounted on mainboard, and the first connecting terminal, the second connecting terminal and third connecting terminal, the control are additionally provided on mainboard
Making sheet includes AC/DC charge management module, DC/DC boost module and CPU intelligent control module, first connecting terminal with
AC power source electrical connection, the second connecting terminal are electrically connected with battery, and third connecting terminal is electrically connected with load；The AC/
The convert alternating current that DC charge management module is used to input AC power source exports 28V direct current；The 28V direct current is all the way
It charges a battery, another way is boosted by DC/DC boost module and exports 220V direct current powering load；AC/DC Charge Management
Module is also used to control the charging process of battery.
The AC/DC charge management module include EMC filter, rectification high frequency conversion module, output rectification module and
The input terminal of management module, EMC filter is electrically connected by the first connecting terminal with AC power source, the output end of EMC filter
It is connect with the input terminal of rectification high frequency conversion module, the output end for rectifying high frequency conversion module is connect with output rectification module, defeated
The first output end of rectification module is electrically connected by the second connecting terminal with battery out；Export the second output terminal of rectification module
It is electrically connected respectively with DC/DC boost module and CPU intelligent control module；It is also connected with management module on output rectification module, is managed
Module is managed for realizing the control to battery charging parameter；The alternating current of AC power source output becomes through EMC filter, rectification high frequency
Change the mold block and output rectification module transformation output 28V direct current.
The DC/DC boost module includes recommending DC converter, rectification filtering module and feedback control module, described
The input terminal for recommending DC converter with output rectification module second output terminal connect, recommend the output end of DC converter
It is connect with rectification filtering module, the output end of rectification filtering module and the input terminal of feedback control module connect, feedback control mould
The output end of block is connect with DC converter is recommended；The 28V direct current of AC/DC charge management module output wherein passes through all the way
Recommend DC converter and rectification filtering module output 220V direct current powering load.
When AC outage, electric energy is provided by battery and recommends DC converter output to DC/DC boost module
220V direct current powering load.
When battery is discharged into lower than assigned voltage value, the CPU intelligent control module output signal disconnects electric power storage
Pond prevents battery overdischarge, protects battery, extends battery.
The CPU intelligent control module includes CPU, input key, temperature detecting module and display module, the temperature
It spends detection module and collected environment temperature parameter is sent to CPU；The display module is believed by numeral method data
Breath, the data information of display includes cell voltage, output voltage and/or environment temperature；The input key is grasped by key
Make the display state of changeable display module.
The CPU intelligent control module further includes fan control module, and CPU passes through fan control according to temperature parameter
The working condition of module control fan.
The CPU intelligent control module further includes communication module, and the communication module links with backstage and realizes data
Four remote control function is realized in mutually transmission.
The CPU intelligent control module further includes Alarm Unit, and the Alarm Unit is by built-in buzzer, dry contact
It is formed with several LED light tube；The CPU controls buzzer, dry contact and LED according to collected data and information
Luminous tube, collected data and information include cell voltage, output voltage and electric current, environment temperature, battery temperature, equipment
Working condition, cell condition and the data on backstage.
The distributed DC power further includes current detecting part and control section, and current detecting part is for detecting
The output electric current of DC/DC boost module (DC/DC DC converter), and it is sent to control section；Control section be by CPU according to
The data that current detecting part sorting measures, to control DC/DC boost module output voltage and electric current；DC/DC boost module is by storing
The electric energy that battery or AC/DC charge management module (AC/DC converter) provide, it is boosted to arrive direct current 220V.
Compared with prior art, beneficial effect is distributed DC power of the present invention: using two pieces of pcb board (Fig. 1
Mainboard and control panel), without connecting line, science layout can be realized and machine flows.The power supply and traditional direct current system
(being the system of 220V) compares, if the function of the battery of two section 12V of battery, power module and monitoring is combined, and
And more and machine may be implemented, failure rate is extremely low, and production cost is low, and battery standby time is long, can simultaneously machine use, can make to export
Power multiplication, it is ensured that system does not power off.
Detailed description of the invention
Fig. 1 is the overall structure diagram of distributed DC power of the invention；
Fig. 2 is the internal logic block diagram of distributed DC power of the invention；
Fig. 3 be distributed DC power of the invention and the equal flow diagram of machine.
Specific embodiment
The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention..
As shown in Figure 1 to Figure 3, distributed DC power of the present invention includes mainboard 1 and control panel 2, the control
Making sheet is mounted on mainboard, and the first connecting terminal 3, the second connecting terminal 4 and third connecting terminal 5, institute are additionally provided on mainboard
The control panel stated includes AC/DC charge management module, DC/DC boost module and CPU intelligent control module, first wiring
Terminal is electrically connected with AC power source, and the second connecting terminal is electrically connected with battery, and third connecting terminal is electrically connected with load；It is described
The AC/DC charge management module convert alternating current output 28V direct current that is used to input AC power source；The 28V direct current
Electricity charges a battery all the way, and another way is boosted by DC/DC boost module and exports 220V direct current powering load；AC/DC fills
Electric management module is also used to control the charging process of battery.
The AC/DC charge management module include EMC filter, rectification high frequency conversion module, output rectification module and
The input terminal of management module, EMC filter is electrically connected by the first connecting terminal with AC power source, the output end of EMC filter
It is connect with the input terminal of rectification high frequency conversion module, the output end for rectifying high frequency conversion module is connect with output rectification module, defeated
The first output end of rectification module is electrically connected by the second connecting terminal with battery out；Export the second output terminal of rectification module
It is electrically connected respectively with DC/DC boost module and CPU intelligent control module；It is also connected with management module on output rectification module, is managed
Module is managed for realizing the control to battery charging parameter；The alternating current of AC power source output becomes through EMC filter, rectification high frequency
Change the mold block and output rectification module transformation output 28V direct current.
The DC/DC boost module includes recommending DC converter, rectification filtering module and feedback control module, described
The input terminal for recommending DC converter with output rectification module second output terminal connect, recommend the output end of DC converter
It is connect with rectification filtering module, the output end of rectification filtering module and the input terminal of feedback control module connect, feedback control mould
The output end of block is connect with DC converter is recommended；The 28V direct current of AC/DC charge management module output wherein passes through all the way
Recommend DC converter and rectification filtering module output 220V direct current powering load.
When AC outage, electric energy is provided by battery and recommends DC converter output to DC/DC boost module
220V direct current powering load.
When battery is discharged into lower than assigned voltage value, the CPU intelligent control module output signal disconnects electric power storage
Pond prevents battery overdischarge, protects battery, extends battery.
The CPU intelligent control module includes CPU, input key, temperature detecting module and display module, the temperature
It spends detection module and collected environment temperature parameter is sent to CPU；The display module is believed by numeral method data
Breath, the data information of display includes cell voltage, output voltage and/or environment temperature；The input key is grasped by key
Make the display state of changeable display module.
The CPU intelligent control module further includes fan control module, and CPU passes through fan control according to temperature parameter
The working condition of module control fan.
The CPU intelligent control module further includes communication module, and the communication module links with backstage and realizes data
Four remote control function is realized in mutually transmission.
The CPU intelligent control module further includes Alarm Unit, and the Alarm Unit is by built-in buzzer, dry contact
It is formed with several LED light tube；The CPU controls buzzer, dry contact and LED according to collected data and information
Luminous tube, collected data and information include cell voltage, output voltage and electric current, environment temperature, battery temperature, equipment
Working condition, cell condition and the data on backstage.
The CPU intelligent control module further includes voltage transformation module, single chip control module, voltage sample module,
When voltage sample module detection cell voltage is lower than 18V, the relay inside equipment (is passed through by single chip control module disconnection
Device) battery power supply, protect battery.
The data and information of acquisition include: cell voltage, battery charge, battery discharge current, output voltage, output
Electric current, environment temperature, battery temperature.
The dry contact is to using the external use of user, such as: loudspeaker, light, electric bell etc. primarily serve alarm and make
With.
Dry contact movement and buzzer warning:
1, without alternating current；2, cell voltage is lower than 22V；3, without output or output abnormality；4, the temperature in equipment is higher than 70
Degree；5, output has short circuit.Wherein there are an appearance, dry contact movement and buzzer warning above.
When the distributed DC power is in the case where exchange inputs unexpected power down or the insufficient situation of input power, several seconds with
Afterwards, device will issue alarm, remind user that exchange power loss occurs, can by key by alarm signal progress involution or
Person's automatic resetting when exchange input restores；
If cell voltage is lower than certain voltage value, device can issue alarm signal, remind user's cell voltage too low,
Alarm signal can be subjected to involution by key or disappeared automatically after being greater than alarm point to battery charging after exchange input is normal
It removes；Cell voltage is crossed as low as whole device (including direct current output) is cut off after a certain period of time, to avoid battery over-discharge, but buzzing
Device, warning light still will continue to alert, and dry contact provides alarm signal, and power supply device automatically engages operation after dispatch from foreign news agency recovery.
Alarm can be also issued when load has short circuit or load excessive or device itself to break down, this signal can not answer
Return, prompts user to close device and carry out load circuit inspection, the situation too big without short circuit or bearing power such as load circuit, then
It may be that device itself breaks down.
The working principle of distributed DC power of the present invention is as follows:
1, alternating current is through EMC filter, rectification, AC/DC ac-dc conversion output 28V direct current.28V direct current is given all the way
Battery charge (control by CPU battery management), another way to DC/DC boost module recommend DC converter export 220V it is straight
Galvanic electricity powering load.
2, when AC outage, electric energy is provided by battery and recommends DC converter output to DC/DC boost module
220V direct current powering load.
3, CPU and control: management module mainly to the management of battery, be by software according to the characteristic and temperature of battery,
The parameters such as battery capacity, discharge process realize the control to battery charging parameter, realize to battery float, fill, constant pressure, permanent
Current charge process.
Fig. 3 is the equal flow graph of distributed DC power of the invention, as shown in figure 3, the distributed DC power is also
Including current detecting part and control section, current detecting part is for detecting DC/DC boost module (DC/DC DC converter)
Output electric current, and be sent to control section；Control section is the data measured by CPU according to current detecting part sorting, to control
DC/DC boost module output voltage and electric current processed；DC/DC boost module is by battery or AC/DC charge management module (AC/DC
Converter) provide electric energy, it is boosted arrive direct current 220V.
Distributed DC power of the present invention and machine flow working principle and be: No. 1 machine (No. 1 DC power supply) and 2
Number machine (No. 2 DC power supplies) output-parallel powering load together.
1, by current equalizer, respective output current data is compared to each other.
2, the value that the current data that CPU obtains that No. 1 machine and No. 2 machines respectively export is compared to each other, to control DC/DC boosting mould
Block keeps No. 1 machine and No. 2 machine output electric currents identical, realizes the purpose that simultaneously machine flows.
Although above having used general explanation and specific embodiment, the present invention is described in detail, at this
On the basis of invention, it can be made some modifications or improvements, this will be apparent to those skilled in the art.Therefore,
These modifications or improvements without departing from theon the basis of the spirit of the present invention are fallen within the scope of the claimed invention.
Claims (10)
1. a kind of distributed DC power, which is characterized in that the distributed DC power includes mainboard and control panel, described
Control panel be mounted on mainboard, the first connecting terminal, the second connecting terminal and third connecting terminal, institute are additionally provided on mainboard
The control panel stated includes AC/DC charge management module, DC/DC boost module and CPU intelligent control module, first wiring
Terminal is electrically connected with AC power source, and the second connecting terminal is electrically connected with battery, and third connecting terminal is electrically connected with load；It is described
The AC/DC charge management module convert alternating current output 28V direct current that is used to input AC power source；The 28V direct current
Electricity charges a battery all the way, and another way is boosted by DC/DC boost module and exports 220V direct current powering load；AC/DC fills
Electric management module is also used to control the charging process of battery.
2. distributed DC power as described in claim 1, which is characterized in that the AC/DC charge management module includes
EMC filter, rectification high frequency conversion module, output rectification module and management module, the input terminal of EMC filter connect by first
Line terminals are electrically connected with AC power source, and the output end of EMC filter is connect with the input terminal of rectification high frequency conversion module, and rectification is high
The output end of frequency conversion module is connect with output rectification module, and the first output end for exporting rectification module passes through the second connecting terminal
It is electrically connected with battery；The second output terminal for exporting rectification module is electric with DC/DC boost module and CPU intelligent control module respectively
Connection；It is also connected with management module on output rectification module, management module is for realizing the control to battery charging parameter；Exchange
The alternating current of power supply output is through EMC filter, rectification high frequency conversion module and output rectification module transformation output 28V direct current.
3. distributed DC power as claimed in claim 2, which is characterized in that the DC/DC boost module includes recommending
DC converter, rectification filtering module and feedback control module, the input terminal for recommending DC converter and output rectify
The second output terminal of module connects, and the output end for recommending DC converter is connect with rectification filtering module, rectification filtering module
Output end and the input terminal of feedback control module connect, and the output end of feedback control module is connect with DC converter is recommended；AC/
The 28V direct current of DC charge management module output is wherein exported by recommending DC converter and rectification filtering module all the way
220V direct current powering load.
4. distributed DC power as claimed in claim 3, which is characterized in that when AC outage, provided by battery
Electric energy recommends DC converter output 220V direct current powering load to DC/DC boost module.
5. distributed DC power as claimed in claim 4, which is characterized in that when battery is discharged into lower than assigned voltage value
When, the CPU intelligent control module output signal disconnects battery, prevents battery overdischarge.
6. distributed DC power as described in claim 1, which is characterized in that the CPU intelligent control module includes
CPU, input key, temperature detecting module and display module, the temperature detecting module is by collected environment temperature parameter
It is sent to CPU；For the display module by numeral method data information, the data information of display includes cell voltage, defeated
Voltage and/or environment temperature out；The display state of display module can be changed by button operation for the input key.
7. distributed DC power as claimed in claim 6, which is characterized in that the CPU intelligent control module further includes
Fan control module, CPU control the working condition of fan by fan control module according to environment temperature parameter.
8. distributed DC power as claimed in claim 6, which is characterized in that the CPU intelligent control module further includes
Communication module, the communication module is linked with backstage realizes that data mutually transmit, and realizes four remote control function.
9. distributed DC power as claimed in claim 6, which is characterized in that the CPU intelligent control module further includes
Alarm Unit, the Alarm Unit are made of built-in buzzer, dry contact and several LED light tube；The CPU according to
Collected data and information control buzzer, dry contact and LED light tube, and collected data and information includes battery electricity
Pressure, output voltage and electric current, environment temperature, battery temperature, working condition, cell condition and the data on backstage of equipment.
10. distributed DC power as described in claim 1, which is characterized in that the distributed DC power further includes
Current detecting part and control section, current detecting part are used to detect the output electric current of DC/DC boost module, and are sent to control
Part processed；Control section is the data measured by CPU according to current detecting part sorting, to control DC/DC boost module output electricity
Pressure and electric current；The electric energy that DC/DC boost module is provided by battery or AC/DC charge management module, it is boosted to arrive direct current 220V.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811090382.6A CN109167430B (en) | 2018-09-18 | 2018-09-18 | A kind of distributed DC power |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811090382.6A CN109167430B (en) | 2018-09-18 | 2018-09-18 | A kind of distributed DC power |
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| CN109167430A true CN109167430A (en) | 2019-01-08 |
| CN109167430B CN109167430B (en) | 2019-10-29 |
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| CN110021987A (en) * | 2019-03-13 | 2019-07-16 | 北京优尔良科技发展有限公司 | A kind of backup power system and a kind of backup power system method for stabilizing voltage |
| CN110994754A (en) * | 2019-12-10 | 2020-04-10 | 国网山东省电力公司威海供电公司 | Portable direct current standby power supply |
| CN112198830A (en) * | 2020-10-30 | 2021-01-08 | 姜金友 | DC emergency evacuation lighting centralized control power supply system |
| CN114069592A (en) * | 2021-10-21 | 2022-02-18 | 南京吉纳电子科技有限公司 | Parallel current sharing method and system for direct-current power supplies |
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| CN109167430B (en) | 2019-10-29 |
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