CN108448717A - A kind of power supply system and method for supplying power to based on generator - Google Patents
A kind of power supply system and method for supplying power to based on generator Download PDFInfo
- Publication number
- CN108448717A CN108448717A CN201810494760.0A CN201810494760A CN108448717A CN 108448717 A CN108448717 A CN 108448717A CN 201810494760 A CN201810494760 A CN 201810494760A CN 108448717 A CN108448717 A CN 108448717A
- Authority
- CN
- China
- Prior art keywords
- generator
- battery packs
- power supply
- power
- inverter
- 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
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
- 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
- H02J9/08—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 requiring starting of a prime-mover
-
- 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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The present invention relates to electrical generator fields more particularly to a kind of power supply systems and method of supplying power to based on generator.By adding 48V battery packs between generator and electrical equipment, inverter, city's electric detection means and controller, when when city, electric detection means detects alternating current power down, 48V battery packs are controlled as inverter power supply and at the same time starting generator, since generator starts to the time that normal work needs about 30S, in this period power supply is provided by 48V battery packs, when generator is in normal operating condition, by 48V battery packs be that inverter power supply switches to by generator it is inverter power supply, and generator charges to 48V battery packs, so that the switching between alternating current need to only can be completed in 5MS, electrical equipment can be achieved to switch in the case where not shutting down, the normal work of electrical equipment is not interfered with.
Description
Technical field
The present invention relates to electrical generator fields more particularly to a kind of power supply systems and method of supplying power to based on generator.
Background technology
Currently, most of electrical equipment is powered using mains-supplied system, once mains-supplied system
Have a power failure, the interval time for starting power supply to conventional electric generators needs general 30S or more, and after generator normally starts
The time that electrical equipment telegram in reply starts 1 to 30 point of needs or more is arrived again, this can be caused for some important electrical equipments
The possibility of great loss and equipment damage, or even some unexpected accidents can occur.
Although having can realize that 0 interval carries out the switching of alternating current and UPS power supplies, disadvantage at present using UPS uninterruptible power supplies
It is：1, UPS battery group is bulky, and difficulty is larger for being frequently necessary to the user of carrying, installation；2, power-on time is short, nothing
Power supply ensures method for a long time；3, UPS hosts use environment require it is more stringent (such as：Indoor use, operating ambient temperature are wanted
Ask, humidity require etc.)；4, UPS power supply systems price is high, and general user is difficult to receive.Certainly, also have and use solar powered system
System can also accomplish that not powering off 0 interval of progress switches, but by test, solar electric power supply system, which provides, continues 3KW electricity consumption needs
The very solar panels of large area are completely unsuitable for being frequently necessary to mobile subscriber's use, and solar panels are influenced by weather
It is very big, it is unable to get stable power-supplying requirement.
Therefore, it is badly in need of providing a kind of power supply system and method for supplying power to based on generator that can realize the switching of 0 interval.
Invention content
The technical problem to be solved by the present invention is to：A kind of confession based on generator that can realize the switching of 0 interval is provided
Electric system and method for supplying power to.
In order to solve the above-mentioned technical problem, the first technical solution that the present invention uses for：
A kind of power supply system based on generator, including generator, 48V battery packs, inverter, city's electric detection means and control
Device processed；The generator is electrically connected with the input terminal of 48V battery packs and inverter respectively, the 48V battery packs and inverter
Input terminal is electrically connected, and the output end of the inverter is electrically connected with electrical equipment, city's electric detection means and mains-supplied system
System connection, the controller are electrically connected with generator, 48V battery packs and city's electric detection means respectively, and the controller is configured
For when city's electric detection means detects alternating current power down, control 48V battery packs are inverter power supply and at the same time starting generator,
When generator is in normal operating condition, by 48V battery packs be inverter power supply switch to by generator be inverter supply
Electricity, and generator charges to 48V battery packs.
The second technical solution that the present invention uses for：
A kind of method of supplying power to based on generator, includes the following steps：
Whether detection alternating current occurs power down；
If so, controlling 48V battery packs as inverter power supply and at the same time starting generator, the inverter sets for electricity consumption
Available electricity；
Judge whether generator is in normal operating condition；
If so, be that inverter power supply switches to by generator by 48V battery packs be inverter power supply, and generator pair
48V battery packs charge.
The beneficial effects of the present invention are：
Power supply system and method for supplying power to provided by the invention based on generator, by between generator and electrical equipment
48V battery packs, inverter, city's electric detection means and controller are added, when city, electric detection means detects alternating current power down, control
48V battery packs are inverter power supply and at the same time startup generator, electric by 48V when generator is in normal operating condition
It is inverter power supply that pond group, which is that inverter power supply switches to by generator, and generator charges to 48V battery packs so that
Switching between alternating current need to only can be completed in 5MS, be equivalent to 0 interval, it can be achieved that electrical equipment is not the case where shutting down
Under switch over, do not interfere with the normal work of electrical equipment.Power supply system complete machine provided by the invention based on generator
It is small, it is light-weight, facilitate carrying and transport, and use environment is without particular/special requirement, be suitble to need frequent mobile working and
Field use demand, output voltage stabilization, power quality is high, suitable for requiring higher electrical equipment；Power-on time is long, only needs
Oiling can work normally, and the power supply steady in a long-term of Infinite Time is can reach in the case of oil mass abundance.
Description of the drawings
Fig. 1 is the structural schematic diagram of the power supply system based on generator of the present invention；
Fig. 2 is the step flow chart of the method for supplying power to based on generator of the present invention；
Label declaration：
1, generator；2,48V battery packs；3, inverter；4, city's electric detection means；5, controller；6, electrical equipment；7, city
Electric power supply system.
Specific implementation mode
To explain the technical content, the achieved purpose and the effect of the present invention in detail, below in conjunction with embodiment and coordinate attached
Figure is explained.
The design of most critical of the present invention is：When city, electric detection means detects alternating current power down, control 48V battery packs are
Inverter power supply is and at the same time startup generator is inverter by 48V battery packs when generator is in normal operating condition
Power switching is at being inverter power supply by generator, and generator charges to 48V battery packs.
Please refer to Fig. 1, a kind of power supply system based on generator provided by the invention, including generator, 48V battery packs,
Inverter, city's electric detection means and controller；The generator is electrically connected with the input terminal of 48V battery packs and inverter respectively,
The 48V battery packs are electrically connected with the input terminal of inverter, and the output end of the inverter is electrically connected with electrical equipment, the city
Electric detection means is connect with mains-supplied system, and the controller is electric with generator, 48V battery packs and city's electric detection means respectively
Connection, the controller are configured as when city's electric detection means detects alternating current power down, and control 48V battery packs supply for inverter
Electricity is and at the same time startup generator is that inverter power supply switches by 48V battery packs when generator is in normal operating condition
At being inverter power supply by generator, and generator charges to 48V battery packs.
As can be seen from the above description, the beneficial effects of the present invention are：
Power supply system provided by the invention based on generator, by adding 48V electricity between generator and electrical equipment
Pond group, inverter, city's electric detection means and controller when electric detection means detects alternating current power down when city, control 48V battery packs
It is inversion by 48V battery packs when generator is in normal operating condition for inverter power supply and at the same time starting generator
Device power switching is at being inverter power supply by generator, and generator charges to 48V battery packs so that between alternating current
Switching need to only can be completed in 5MS, it can be achieved that electrical equipment is switched in the case where not shutting down, do not interfere with use
The normal work of electric equipment.Power supply system complete machine provided by the invention based on generator it is small, it is light-weight, facilitate carrying
And transport, and use environment is suitble to need frequent mobile working and field use demand, output voltage steady without particular/special requirement
Fixed, power quality is high, suitable for requiring higher electrical equipment；Power-on time is long, only need to refuel and can work normally, in oil mass
It can reach the power supply steady in a long-term of Infinite Time in the case of abundance.
Moreover if adding UPS power supply systems using traditional 220VAC generators, although can power for a long time in this way, disadvantage
It is：UPS will organize battery pack and arrive 300V or so, need a large amount of battery and volume is larger, and it is larger to carry difficulty；If with low pressure
UPS carry out inversion boosting when, battery pack can use very small volume battery, but generator output 220VAC need increase 3KW or
The appendiron core transformer of bigger boosts for UPS again after being depressured, this process is more than 50% to the loss of energy, both without
It helps and system is also complex.
Further, further include the power detection device being electrically connected with the controller, the power detection device is set with electricity consumption
Standby electrical connection, the controller are electrically connected with the throttle device of generator, and the controller is configured as working as power detection device
When detecting that the power of electrical equipment increases, the throttle device for controlling generator increases to oil mass, when power detection device detects
To electrical equipment power reduce when, the throttle device for controlling generator reduces to oil mass.
Seen from the above description, the output of front end generator can be intelligently adjusted according to the power demand of rear end electrical equipment
Power, and when the power of electrical equipment reduces, the throttle device for controlling generator reduces to oil mass, to reach energy saving mesh
's.
Further, further include the charging overvoltage protection circuit being electrically connected with the controller, the charging overvoltage protection circuit
It is electrically connected with 48V battery packs.
Seen from the above description, can realize the protection to 48V battery packs, to confirm alternating current again power down when supply in time
Electricity, and the output energy of generator is made to be utilized effectively.
Further, the generator is electrically connected by charging circuit with 48V battery packs, and the charging circuit includes rectification
Circuit, it is 48V electricity that the rectification circuit, which is configured as the 220V AC conversions for exporting generator at after 40-70V direct currents,
Pond group charging.
Further, further include another generator being connect with the parallel operation of generator.
Seen from the above description, two or more and machine synchronous working can be achieved in the case where needing increasing power situation.
Referring to Fig.2, a kind of method of supplying power to based on generator provided by the invention, includes the following steps：
Whether detection alternating current occurs power down；
If so, controlling 48V battery packs as inverter power supply and at the same time starting generator, the inverter sets for electricity consumption
Available electricity；
Judge whether generator is in normal operating condition；
If so, be that inverter power supply switches to by generator by 48V battery packs be inverter power supply, and generator pair
48V battery packs charge.
As can be seen from the above description, the beneficial effects of the present invention are：
Method of supplying power to provided by the invention based on generator, when city, electric detection means detects alternating current power down, control
48V battery packs are inverter power supply and at the same time startup generator, electric by 48V when generator is in normal operating condition
It is inverter power supply that pond group, which is that inverter power supply switches to by generator, and generator charges to 48V battery packs so that
Switching between alternating current need to be only can be completed in 5MS, it can be achieved that electrical equipment is switched in the case where not shutting down, no
Influence whether the normal work of electrical equipment.
Further, further include：
Whether the power of detection electrical equipment increases, if so, the throttle device of control generator increases to oil mass；
Whether the power of detection electrical equipment reduces, if so, the throttle device of control generator reduces to oil mass.
Seen from the above description, the output of front end generator can be intelligently adjusted according to the power demand of rear end electrical equipment
Power, and when the power of electrical equipment reduces, the throttle device for controlling generator reduces to oil mass, to reach energy saving mesh
's.
Further, further include：
If detection 48V battery packs are in charged state and electricity has been expired, disconnect logical between generator and 48V battery packs
Road.
Seen from the above description, can realize the protection to 48V battery packs, to confirm alternating current again power down when supply in time
Electricity, and the output energy of generator is made to be utilized effectively.
Further, further include：
If detecting, the power of electrical equipment exceeds preset value, sends out simultaneously machine prompt message.
Seen from the above description, two or more and machine synchronous working can be achieved in the case where needing increasing power situation.
Fig. 1 is please referred to, the embodiment of the present invention one is：
A kind of power supply system based on generator provided by the invention, including generator 1,48V battery packs 2, inverter 3,
City's electric detection means 4 and controller 5；The generator 1 is electrically connected with the input terminal of 48V battery packs 2 and inverter 3 respectively, institute
It states 48V battery packs 2 to be electrically connected with the input terminal of inverter 3, the output end of the inverter 3 is electrically connected with electrical equipment 6, described
City's electric detection means 4 is connect with mains-supplied system 7, the controller 5 respectively with generator 1,48V battery packs 2 and city's electric-examination
It surveys device 4 to be electrically connected, the controller 5 is configured as when city's electric detection means detects alternating current power down, controls 48V battery packs
It is inversion by 48V battery packs when generator is in normal operating condition for inverter power supply and at the same time starting generator
Device power switching is at being inverter power supply by generator, and generator charges to 48V battery packs.Wherein, generator is defeated
Go out 220VAC, inverter exports 220VAC, and the direct current that 48V battery packs provide is converted into 220VAC and exported to electricity consumption by inverter
Equipment.
The above-mentioned power supply system based on generator further includes the power detection device being electrically connected with the controller, the work(
Rate detection device is electrically connected with electrical equipment, and the controller is electrically connected with the throttle device of generator, the controller by with
It being set to when power detection device detects that the power of electrical equipment increases, the throttle device for controlling generator increases to oil mass,
When power detection device detects that the power of electrical equipment reduces, the throttle device for controlling generator reduces to oil mass.
The above-mentioned power supply system based on generator further includes the charging overvoltage protection circuit being electrically connected with the controller, institute
Charging overvoltage protection circuit is stated to be electrically connected with 48V battery packs.It is integrated that existing overvoltage protection can be used in charging overvoltage protection circuit
Intelligent breaker can also be used to realize such as the chip of model TCS2802 in chip.
The above-mentioned power supply system based on generator, the generator are electrically connected by charging circuit with 48V battery packs, institute
It includes rectification circuit to state charging circuit, and the 220V AC conversions that the rectification circuit is configured as exporting in generator are at 40-
It charges for 48V battery packs after 70V direct currents.Rectification circuit uses existing commutating circuit, realizes that alternating current-direct current converts and realizes pressure
Drop.
The above-mentioned power supply system based on generator further includes another generator being connect with the parallel operation of generator.
Fig. 2 is please referred to, the embodiment of the present invention two is：
A kind of method of supplying power to based on generator provided by the invention, includes the following steps：
Whether detection alternating current occurs power down；
If so, controlling 48V battery packs as inverter power supply and at the same time starting generator, the inverter sets for electricity consumption
Available electricity；
Judge whether generator is in normal operating condition；
If so, be that inverter power supply switches to by generator by 48V battery packs be inverter power supply, and generator pair
48V battery packs charge.
Further, further include：
Whether the power of detection electrical equipment increases, if so, the throttle device of control generator increases to oil mass；Detection
Whether the power of electrical equipment reduces, if so, the throttle device of control generator reduces to oil mass.Detection in real time can be used,
Fixed time-interval sampling detection is may also set up, system resource effective rate of utilization is improved.
Further, further include：
If detection 48V battery packs are in charged state and electricity has been expired, disconnect logical between generator and 48V battery packs
Road.It wherein in charging process, can be used when detecting that electricity reaches 85%, adjust charging current, the use of low current is 48V
Battery pack charges, and as first uses high current, then with the mode of low current, can reduce the damage to 48V battery packs.
Further, further include：
If detecting, the power of electrical equipment exceeds preset value, sends out simultaneously machine prompt message.
In conclusion a kind of power supply system and method for supplying power to based on generator provided by the invention, by generator
48V battery packs, inverter, city's electric detection means and controller are added between electrical equipment, electric detection means detects when city
When alternating current power down, control 48V battery packs are inverter power supply and at the same time starting generator, since generator starts to normal work
The time for needing about 30S provides power supply, until generator is in normal operation shape in this period by 48V battery packs
By 48V battery packs be that inverter power supply switches to by generator it is inverter power supply when state, and generator is to 48V battery packs
It charges so that the switching between alternating current need to be only can be completed in 5MS, it can be achieved that electrical equipment is not the case where shutting down
Under switch over, do not interfere with the normal work of electrical equipment.Power supply system complete machine provided by the invention based on generator
It is small, it is light-weight, facilitate carrying and transport, and use environment is without particular/special requirement, be suitble to need frequent mobile working and
Field use demand, output voltage stabilization, power quality is high, suitable for requiring higher electrical equipment；Power-on time is long, only needs
Oiling can work normally, and the power supply steady in a long-term of Infinite Time is can reach in the case of oil mass abundance.
Example the above is only the implementation of the present invention is not intended to limit the scope of the invention, every to utilize this hair
Equivalents made by bright specification and accompanying drawing content are applied directly or indirectly in relevant technical field, include similarly
In the scope of patent protection of the present invention.
Claims (9)
1. a kind of power supply system based on generator, which is characterized in that including generator, 48V battery packs, inverter, city's electric-examination
Survey device and controller；The generator is electrically connected with the input terminal of 48V battery packs and inverter respectively, the 48V battery packs
Be electrically connected with the input terminal of inverter, the output end of the inverter is electrically connected with electrical equipment, city's electric detection means with
Mains-supplied system connects, and the controller is electrically connected with generator, 48V battery packs and city's electric detection means respectively, the control
Device processed is configured as when city's electric detection means detects alternating current power down, control 48V battery packs be inverter power supply and at the same time
Start generator, is that inverter power supply is switched to by generator by 48V battery packs when generator is in normal operating condition
For inverter power supply, and generator charges to 48V battery packs.
2. the power supply system according to claim 1 based on generator, which is characterized in that further include being electrically connected with the controller
Power detection device, the power detection device is electrically connected with electrical equipment, the throttle device of the controller and generator
Electrical connection, the controller are configured as, when power detection device detects that the power of electrical equipment increases, controlling generator
Throttle device increase to oil mass, when power detection device detects that the power of electrical equipment reduces, control the oil of generator
Gate device reduces to oil mass.
3. the power supply system according to claim 1 based on generator, which is characterized in that further include being electrically connected with the controller
Charging overvoltage protection circuit, the charging overvoltage protection circuit is electrically connected with 48V battery packs.
4. the power supply system according to claim 1 based on generator, which is characterized in that the generator passes through the electricity that charges
Road is electrically connected with 48V battery packs, and the charging circuit includes rectification circuit, and the rectification circuit is configured as exporting in generator
220V AC conversions at after 40-70V direct currents be 48V battery packs charge.
5. the power supply system according to claim 1 based on generator, which is characterized in that further include with the generator simultaneously
Join another generator of connection.
6. a kind of method of supplying power to based on generator, which is characterized in that include the following steps：
Whether detection alternating current occurs power down；
If so, controlling 48V battery packs as inverter power supply and at the same time starting generator, the inverter is that electrical equipment supplies
Electricity；
Judge whether generator is in normal operating condition；
If so, be that inverter power supply switches to by generator by 48V battery packs be inverter power supply, and generator is to 48V
Battery pack charges.
7. the method for supplying power to according to claim 6 based on generator, which is characterized in that further include：
Whether the power of detection electrical equipment increases, if so, the throttle device of control generator increases to oil mass；
Whether the power of detection electrical equipment reduces, if so, the throttle device of control generator reduces to oil mass.
8. the method for supplying power to according to claim 6 based on generator, which is characterized in that further include：
If detection 48V battery packs are in charged state and electricity has been expired, the access between generator and 48V battery packs is disconnected.
9. the method for supplying power to according to claim 6 based on generator, which is characterized in that further include：
If detecting, the power of electrical equipment exceeds preset value, sends out simultaneously machine prompt message.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810494760.0A CN108448717A (en) | 2018-05-22 | 2018-05-22 | A kind of power supply system and method for supplying power to based on generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810494760.0A CN108448717A (en) | 2018-05-22 | 2018-05-22 | A kind of power supply system and method for supplying power to based on generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108448717A true CN108448717A (en) | 2018-08-24 |
Family
ID=63204366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810494760.0A Pending CN108448717A (en) | 2018-05-22 | 2018-05-22 | A kind of power supply system and method for supplying power to based on generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108448717A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101291078A (en) * | 2008-06-10 | 2008-10-22 | 福建弘旺电子科技有限公司 | On-line type digital electricity generating system with UPS function |
| CN201238200Y (en) * | 2008-03-25 | 2009-05-13 | 颜怀略 | Intelligent generator set for uninterrupted power supply |
| CN201398087Y (en) * | 2009-05-01 | 2010-02-03 | 深圳市德泽能源科技有限公司 | Novel lead-acid accumulator UPS control system |
| WO2010060338A1 (en) * | 2008-11-03 | 2010-06-03 | 华为技术有限公司 | Hybrid battery management system, battery management method and hybrid standby power system |
| CN105449720A (en) * | 2014-09-28 | 2016-03-30 | 艾默生网络能源有限公司 | Distribution system |
| CN107276212A (en) * | 2017-07-03 | 2017-10-20 | 国网山东省电力公司莱芜供电公司 | The computer room electric power system and computer room management system of based superconductive energy storage |
-
2018
- 2018-05-22 CN CN201810494760.0A patent/CN108448717A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201238200Y (en) * | 2008-03-25 | 2009-05-13 | 颜怀略 | Intelligent generator set for uninterrupted power supply |
| CN101291078A (en) * | 2008-06-10 | 2008-10-22 | 福建弘旺电子科技有限公司 | On-line type digital electricity generating system with UPS function |
| WO2010060338A1 (en) * | 2008-11-03 | 2010-06-03 | 华为技术有限公司 | Hybrid battery management system, battery management method and hybrid standby power system |
| CN201398087Y (en) * | 2009-05-01 | 2010-02-03 | 深圳市德泽能源科技有限公司 | Novel lead-acid accumulator UPS control system |
| CN105449720A (en) * | 2014-09-28 | 2016-03-30 | 艾默生网络能源有限公司 | Distribution system |
| CN107276212A (en) * | 2017-07-03 | 2017-10-20 | 国网山东省电力公司莱芜供电公司 | The computer room electric power system and computer room management system of based superconductive energy storage |
Non-Patent Citations (1)
| Title |
|---|
| 邮电部设计院: "《电信工程设计手册 17 通信电源》", vol. 7, 人民邮电出版社, pages: 246 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202651863U (en) | Charger and charging system | |
| US20190036366A1 (en) | Combined charger and power converter | |
| CN101826741A (en) | Novel efficient solar cell charging system and control method | |
| CN202142994U (en) | Power supply device | |
| JP2012228027A (en) | Dc power feeding system and control method of the same | |
| CN103066687A (en) | Uninterrupted power supply (UPS) solar charged inverter | |
| CN201177349Y (en) | Air conditioner controller and air conditioner system | |
| CN107863818B (en) | Intelligent integrated uninterrupted multi-path direct current output switching power supply | |
| CN207150246U (en) | A kind of ups power device | |
| CN103166294B (en) | Distributed backup battery management system and corresponding electronic system | |
| CN102185358A (en) | Simple and practical movable uninterruptible power supply | |
| CN210430980U (en) | Rechargeable battery power supply device | |
| CN211880144U (en) | Charger and charging system | |
| CN108448717A (en) | A kind of power supply system and method for supplying power to based on generator | |
| CN208353064U (en) | A kind of power supply system based on generator | |
| CN113659673A (en) | Quick charging and grid-connected connecting device based on energy storage power supply and working method thereof | |
| CN212435364U (en) | System power supply device of photovoltaic inverter and photovoltaic inverter | |
| CN107612130A (en) | A kind of family expenses dual intensity source power supply system | |
| CN112838583A (en) | Static generator power supply system and control method thereof | |
| CN208890396U (en) | Photovoltaic for base station is from grid-connected integrated inverter power supply control system | |
| CN108233512A (en) | A kind of fuel cell hybrid power system | |
| CN106602598A (en) | Intelligent power supply system for auxiliary power source of power grid-connection equipment | |
| CN207968056U (en) | A kind of ups power device using 2V accumulators | |
| CN2572644Y (en) | ATX power source having UPS function | |
| CN102148524A (en) | Charger |
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 |