CN110784006A - High-power UPS storage battery protection switch cabinet device providing charge-discharge bidirectional protection - Google Patents
High-power UPS storage battery protection switch cabinet device providing charge-discharge bidirectional protection Download PDFInfo
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- CN110784006A CN110784006A CN201910765892.7A CN201910765892A CN110784006A CN 110784006 A CN110784006 A CN 110784006A CN 201910765892 A CN201910765892 A CN 201910765892A CN 110784006 A CN110784006 A CN 110784006A
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- China
- Prior art keywords
- storage battery
- ups
- load switch
- fuse
- protection
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Classifications
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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
- H02J9/062—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 AC powered loads
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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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/0031—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using battery or load disconnect circuits
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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
- 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
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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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
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- 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 invention discloses a high-power UPS storage battery protection switch cabinet device for providing charge-discharge bidirectional protection, which is connected with a storage battery pack and a UPS host and comprises a bus, an undervoltage tripper, a molded case circuit breaker, a load switch and a fuse, wherein the undervoltage tripper is connected with the bus through the fuse, the undervoltage tripper is connected with the load switch, the first end of the load switch is connected with the bus through the fuse, the second end of the load switch is connected with the direct-current end of the UPS host, and the bus is connected with the storage battery through the. The substantial effects of the invention include: the problem of insufficient insulation isolation of the molded case circuit breaker and the load switch under the single-pole working voltage is solved, and insulation isolation under the rated working voltage of the UPS storage battery is met. The operation and bidirectional protection function during charging and discharging of the single group of storage batteries are realized, and the size and the cost of the device are saved by the load switch and the fuse set. The undervoltage release ensures that the UPS storage battery pack does not generate overdischarge so as to protect the storage battery pack.
Description
Technical Field
The invention relates to the field of uninterruptible power supply power distribution, in particular to a high-power UPS storage battery protection switch cabinet device for providing charge-discharge bidirectional protection.
Background
Ups (uninterruptible Power system), i.e., an uninterruptible Power supply, is a constant voltage and constant frequency uninterruptible Power supply that includes an energy storage device and an inverter as a main component. The device is mainly used for providing uninterrupted power supply for a single computer, a computer network system or other power electronic equipment. When the mains supply input is normal, the UPS supplies the mains supply to the load for use after stabilizing the voltage of the mains supply, and the UPS is an alternating current mains supply voltage stabilizer and also charges a built-in battery; when the commercial power is interrupted (power failure in accident), the UPS immediately supplies 220V alternating current to the load by the electric energy of the battery in the UPS through an inversion conversion method, so that the load can maintain normal work and the software and hardware of the load are protected from being damaged. UPS devices typically provide protection against both excessive voltages and low voltages. The high-power UPS is widely applied to important load places such as data centers and the like. In order to ensure the backup time of the UPS, the configuration capacity of a backup storage battery of the UPS is larger and larger. In order to ensure that the storage battery pack can meet the requirements of high-power and heavy-current discharge during power failure, the UPS backup storage battery usually adopts 2-4 groups of storage battery packs connected in parallel for backup power supply. However, if the storage battery pack does not discharge for a long time, the service life of the storage battery pack is reduced, and necessary protection measures between the storage battery pack and the UPS host are lacked.
The invention discloses a power supply method and a power supply device for a UPS backup battery pack of a non-uninterrupted power supply redundant system, which are used for solving the problems that the available capacity of a UPS backup storage battery is reduced and the power supply is unreliable due to the risk that a storage battery power supply route supplies power by one way when a certain UPS in a parallel system breaks down. Comprises at least two UPSs and at least one tie switch; each UPS comprises at least one storage battery pack, an inverter and a storage battery switch, wherein the storage battery switch is used for connecting or disconnecting the storage battery pack and the inverter; two ends of each tie switch are connected with the output ends of the two UPS standby storage battery packs, and the tie switches are used for connecting the storage battery packs of the two UPSs in parallel after the storage battery switch of any one of the two connected UPSs is disconnected; the risks of reduction of backup time of the UPS power supply system and loss of redundant power supply of the storage battery pack are avoided.
The prior art is used for solving the problems that when a UPS of a UPS redundant power supply system part fails, the UPS power supply backup time is seriously insufficient and a storage battery power supply route is in suspension. But still insufficient in terms of the service life of the storage battery and the isolation protection of the storage battery and the UPS host machine.
Disclosure of Invention
Aiming at the defects of the prior art in the aspects of the service life of a storage battery and the isolation protection of the storage battery and a UPS host, the invention provides a charging and discharging bidirectional protection high-power UPS storage battery protection switch cabinet device, which can solve the problem of insufficient insulation isolation of unipolar working voltages of a molded case circuit breaker and a load switch, provides bidirectional protection during the charging and discharging of the storage battery, realizes the improvement of the service life of the storage battery, and perfects the isolation protection measures.
The technical scheme of the invention is as follows.
The utility model provides a provide high-power UPS battery protection switch cabinet device of charge-discharge bidirectional protection, connects storage battery and UPS host computer, including generating line, undervoltage release, moulded case circuit breaker, load switch and fuse, the undervoltage release passes through the fuse and connects the generating line, and the load switch is connected to the undervoltage release, and the fuse is passed through to the first end of load switch and connects the generating line, and the UPS host computer direct current end is connected to the load switch second end, and the generating line passes through moulded case circuit breaker and connects the battery.
According to the scheme, the plastic shell circuit breaker and the load switch are connected in series in a 3-pole mode, the problem that the single-pole working voltage of the plastic shell circuit breaker and the single-pole working voltage of the load switch are insufficient in insulation and isolation is solved, and insulation and isolation under the rated working voltage of the UPS storage battery are met. The molded case circuit breaker realizes the operation and bidirectional protection function during the charging and discharging of a single group of storage batteries; the load switch and the fuse realize the operation and the bidirectional protection during the charging and discharging of the whole UPS storage battery group, and meanwhile, the load switch and the fuse combined switch replace a high-current frame direct-current circuit breaker, so that the size and the cost of a UPS battery protection switch cabinet device are saved. According to the bus voltage of the storage battery pack, the load switch QL1 is disconnected through the undervoltage release, so that the UPS storage battery pack is prevented from being overdischarged to protect the storage battery pack.
Preferably, the UPS comprises an active energy consumption module, wherein the active energy consumption module is connected with a bus and controls and is connected with an alternating current input end of the UPS host. If the commercial power is not cut off for a long time, the storage battery is not discharged for a long time, and the service life of the storage battery can be influenced, so that the active energy consumption module is arranged to help the storage battery to discharge once at a certain time.
Preferably, the active energy consumption module comprises a timer, a relay and an energy consumption device, the timer enables the relay and the alternating current input end of the UPS host machine to be in a closed or disconnected state according to preset time, and the energy consumption device is connected with the bus through the relay. The timer controls the commercial power to be switched on and off according to preset time, and simultaneously, the load and the energy dissipater consume the electric energy of the storage battery. The energy dissipater can accelerate the discharge speed of the storage battery so as to discharge more effectively in shorter time.
Preferably, the energy dissipater comprises a motor and fan blades, and the fan blades are connected with a rotating shaft of the motor. The motor rotates to consume electric energy and is safe, and meanwhile, the rotating resistance is increased through the fan blades, and the power consumption capability is improved.
Preferably, the energy consumer is a voltmeter. If the voltmeter is selected as the energy dissipater, the detection function is mainly used for observing the voltage change of the storage battery, and the energy dissipater consumes less energy.
Preferably, the rated current of the fuse is 1600A, and the rated voltage is more than 600V.
The substantial effects of the invention include: the plastic shell circuit breaker is connected with the load switch in series by 3 poles, so that the problem of insufficient insulation isolation of the single-pole working voltage of the plastic shell circuit breaker and the load switch is solved, and the insulation isolation of the UPS storage battery under the rated working voltage is met. The molded case circuit breaker realizes the operation and bidirectional protection function during the charging and discharging of a single group of storage batteries; the load switch and the fuse realize the operation and the bidirectional protection during the charging and discharging of the whole UPS storage battery group, and meanwhile, the load switch and the fuse combined switch replace a high-current frame direct-current circuit breaker, so that the size and the cost of a UPS battery protection switch cabinet device are saved. According to the bus voltage of the storage battery pack, the load switch QL1 is disconnected through the undervoltage release, so that the UPS storage battery pack is prevented from being overdischarged to protect the storage battery pack. Meanwhile, the storage battery is helped to discharge on time, and the service life of the storage battery is prolonged.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention;
FIG. 2 is an electrical schematic of an embodiment of the present invention;
the figure includes: the intelligent power supply system comprises a switch cabinet main body 1, a UPS host machine 2, an alternating current input end 3, a timer 4, a relay 5, an energy dissipater 6 and a load 7.
Detailed Description
The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. In addition, numerous specific details are set forth below in order to provide a better understanding of the present invention. It will be understood by those skilled in the art that the present invention may be practiced without some of these specific details. In some instances, methods, means, elements and circuits that are well known to those skilled in the art have not been described in detail so as not to obscure the present invention.
In the following, the terms "first", "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present embodiment, "a plurality" means two or more unless otherwise specified.
Example (b): as shown in fig. 1 and 2, a high-power UPS storage battery protection switch cabinet device providing charge-discharge bidirectional protection, wherein a connection line in the drawing represents a connection relation and does not represent a specific line, a storage battery pack and a UPS host 2 are connected to a switch cabinet main body 1, the UPS host 2 is externally connected with a load 7, a bus, an undervoltage tripper, a molded case circuit breaker, a load switch and a fuse are included in the switch cabinet main body 1, the undervoltage tripper is connected with the bus through the fuse, the undervoltage tripper is connected with the load switch, a first end of the load switch is connected with the bus through the fuse, a second end of the load switch is connected with a direct-current.
According to the scheme, the plastic shell circuit breaker and the load switch are connected in series in a 3-pole mode, the problem that the single-pole working voltage of the plastic shell circuit breaker and the single-pole working voltage of the load switch are insufficient in insulation and isolation is solved, and insulation and isolation under the rated working voltage of the UPS storage battery are met. The molded case circuit breaker realizes the operation and bidirectional protection function during the charging and discharging of a single group of storage batteries; the load switch and the fuse realize the operation and the bidirectional protection during the charging and discharging of the whole UPS storage battery group, and meanwhile, the load switch and the fuse combined switch replace a high-current frame direct-current circuit breaker, so that the size and the cost of a UPS battery protection switch cabinet device are saved. According to the bus voltage of the storage battery pack, the load switch QL1 is disconnected through the undervoltage release, so that the UPS storage battery pack is prevented from being overdischarged to protect the storage battery pack.
In addition, the embodiment further comprises an active energy consumption module, the active energy consumption module is connected with the bus, and the active energy consumption module is connected with the alternating current input end 3 of the UPS host in a control mode. If the commercial power is not cut off for a long time, the storage battery is not discharged for a long time, and the service life of the storage battery can be influenced, so that the active energy consumption module is arranged to help the storage battery to discharge once at a certain time.
The active energy consumption module comprises a timer 4, a relay 5 and an energy consumption device 6, the timer 4 enables the relay 5 and the alternating current input end 3 of the UPS host machine to be in a closed or disconnected state according to preset time, and the energy consumption device 6 is connected with a bus through the relay 5. The timer 4 controls the commercial power to be switched on and off according to the preset time, and simultaneously, the load and the energy consumer consume the electric energy of the storage battery. The energy consumption device 6 can accelerate the discharge speed of the storage battery so as to discharge more effectively in shorter time.
The energy dissipater 6 of this embodiment includes a motor and fan blades, and the fan blades are connected to a rotating shaft of the motor. The motor rotates to consume electric energy and is safe, and meanwhile, the rotating resistance is increased through the fan blades, and the power consumption capability is improved.
The fuse used in this embodiment has a rated current of 1600A and a rated voltage of 650V.
The beneficial effects of this embodiment are not described in detail.
Through the description of the above embodiments, those skilled in the art will understand that, for convenience and simplicity of description, only the division of the above functional modules is used as an example, and in practical applications, the above function distribution may be completed by different functional modules according to needs, that is, the internal structure of a specific device is divided into different functional modules to complete all or part of the above described functions.
In the embodiments provided in this application, it should be understood that the disclosed structures and methods may be implemented in other ways. For example, the above-described embodiments with respect to structures are merely illustrative, and for example, a module or a unit may be divided into only one logic function, and may have another division manner in actual implementation, for example, a plurality of units or components may be combined or may be integrated into another structure, or some features may be omitted or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, structures or units, and may be in an electrical, mechanical or other form.
Units described as separate parts may or may not be physically separate, and parts displayed as units may be one physical unit or a plurality of physical units, may be located in one place, or may be distributed to a plurality of different places. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a readable storage medium. Based on such understanding, the technical solutions of the embodiments of the present application may be essentially or partially contributed to by the prior art, or all or part of the technical solutions may be embodied in the form of a software product, where the software product is stored in a storage medium and includes several instructions to enable a device (which may be a single chip, a chip, or the like) or a processor (processor) to execute all or part of the steps of the methods of the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (6)
1. The utility model provides a provide high-power UPS battery protection cubical switchboard device of charge-discharge bidirectional protection, connects storage battery and UPS host computer, its characterized in that, including generating line, undervoltage release, moulded case circuit breaker, load switch and fuse, undervoltage release passes through the fuse and connects the generating line, and the load switch is connected to the undervoltage release, and the fuse is passed through to the first end of load switch, and the UPS host computer direct current end is connected to the load switch second end, and the generating line passes through moulded case circuit breaker and connects the battery.
2. The device of claim 1, further comprising an active energy dissipation module, wherein the active energy dissipation module is connected to the bus, and the active energy dissipation module is connected to the ac input of the UPS host.
3. The device of claim 2, wherein the active energy consumption module comprises a timer, a relay and an energy consumption device, the timer enables the relay and the AC input end of the UPS host to be in a closed or disconnected state according to a preset time, and the energy consumption device is connected with the bus through the relay.
4. The device of claim 1, wherein the energy dissipater comprises a motor and fan blades, and the fan blades are connected to a rotating shaft of the motor.
5. A high power UPS battery protection switch cabinet apparatus providing charge and discharge bi-directional protection according to claim 3, where the energy consumer is a voltmeter.
6. A high power UPS battery protection switch cabinet apparatus providing charge and discharge bi-directional protection as claimed in claim 1 wherein said fuse has a rated current of 1600A and rated voltage greater than 600V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910765892.7A CN110784006A (en) | 2019-08-19 | 2019-08-19 | High-power UPS storage battery protection switch cabinet device providing charge-discharge bidirectional protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910765892.7A CN110784006A (en) | 2019-08-19 | 2019-08-19 | High-power UPS storage battery protection switch cabinet device providing charge-discharge bidirectional protection |
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|---|---|
| CN110784006A true CN110784006A (en) | 2020-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910765892.7A Pending CN110784006A (en) | 2019-08-19 | 2019-08-19 | High-power UPS storage battery protection switch cabinet device providing charge-discharge bidirectional protection |
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2019
- 2019-08-19 CN CN201910765892.7A patent/CN110784006A/en active Pending
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| JP2012253975A (en) * | 2011-06-06 | 2012-12-20 | Panasonic Corp | Charging/discharging control method for alkali storage battery, and charging/discharging system |
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| CN107045964A (en) * | 2016-02-05 | 2017-08-15 | 上海良信电器股份有限公司 | A kind of multipole circuit breaker loop structure |
| CN106026251A (en) * | 2016-06-22 | 2016-10-12 | 中国石油天然气股份有限公司 | Device for automatic discharging storage battery pack at regular intervals |
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Application publication date: 20200211 |