CN216216069U - Novel uninterrupted power source power supply system - Google Patents
Novel uninterrupted power source power supply system Download PDFInfo
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- CN216216069U CN216216069U CN202122649796.1U CN202122649796U CN216216069U CN 216216069 U CN216216069 U CN 216216069U CN 202122649796 U CN202122649796 U CN 202122649796U CN 216216069 U CN216216069 U CN 216216069U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
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Abstract
The utility model provides a novel uninterruptible power supply system, which utilizes the energy storage controlled voltage source controlled synchronous operation and multi-power source real-time switching control technology to realize the mode support of a controlled voltage source and real-time regulation and control of the conversion of different power sources, completes the power source switching function of near-zero millisecond uninterruptible power supply, abandons the conventional technical means of two-time power conversion and breaks the system framework fixed mode of the prior technical scheme, innovatively adopts the energy storage system which is connected with a controlled voltage source converter in parallel at the load input end of the power supply, realizes the online switching regulation and control of different power sources and the uninterruptible power supply which is continuously supported, changes the resource waste and economic burden caused by the two-stage conversion of the prior UPS, becomes a hematopoietic machine for realizing the peak regulation and creation of power, effectively solves the problems of the prior art application and the defects of the system framework, and provides energy-saving, and multi-power source real-time switching control technology for a data center and an electric load which needs uninterrupted power supply, High efficiency and income creating.
Description
Technical Field
The utility model belongs to the technical field of uninterrupted power supply, and particularly relates to a novel uninterrupted power supply system.
Background
With the progress of human society and the technical development of modernization and informatization, the demand of electric power cannot be kept in various industries and the life and work of people, and especially, the electric power needs to be stably and uninterruptedly provided. Under the condition that the power supply of the power grid is mostly supplied in an alternating current mode at present, the technical means of uninterrupted power supply still adopts a UPS uninterrupted power supply system. In contrast, the fifth printing plate in 2021 of "green data center power supply system" published by scientific publishing company, the second printing plate in 2020 of "bank data center infrastructure construction and operation and maintenance management" published by mechanical industry publishing company, the third printing plate in 2020 of "data center hotspot technology analysis" published by people's mail and telecommunications publishing company, and the third printing plate in 2021 of "UPS power technology and application" published by chemical industry publishing company; the above publications all describe in detail the technical solutions of UPS uninterruptible power supply systems, and clearly indicate that, when the existing power grid supplies power to the ac power grid, the data center, the location and the power load that need uninterruptible power supply are basically ac power access, where the main sources of power supply are ac power supplied by the power grid and ac power supplied by the backup diesel generator, and when power supply of different ac power sources needs to be converted, the inconsistency of frequency and phase causes a failure and a power failure condition in the transfer process of different power systems and risks of accidents.
Therefore, when a power supply fails and different power supplies are switched, the failed power supply is switched to be connected to another standby power supply through the STS power supply change-over switch which is turned off first and then turned on, the power supply switching in the period can cause interruption of power supply, the power consumption requirements of a data center and a power consumption load needing uninterrupted power supply scenes can not be met, the load equipment has the risk of stopping running due to temporary power failure, and unnecessary and immeasurable loss is caused.
For this reason, the UPS uninterruptible power supply system of the related art is widely used. However, the UPS uninterrupted power supply system generates power loss of twice conversion through twice conversion from AC to DC and vice versa; meanwhile, in the process of converting alternating current to direct current and converting direct current to alternating current of the UPS uninterrupted power supply system in the prior art, the battery system is hung on the direct current side and serves as standby electric energy, the battery system needs to be maintained and is subjected to floating charging, a large amount of manpower and material resource resources are occupied, and the battery system becomes a zombie asset which consumes resources in a long-term standby period. Therefore, the industry is trying to change the current situation and make technical and system improvements, but at present, the scheme and system architecture of the UPS uninterruptible power supply system with two conversions from ac to dc and dc to ac are still mainly adopted.
Disclosure of Invention
In order to solve the above application problem of the uninterruptible power supply system and the defect of the system architecture, the utility model provides a novel uninterruptible power supply system, which mainly comprises: the system comprises a controlled voltage source bidirectional converter unit, an energy storage battery unit, a power supply side electric parameter sampling circuit, a monitoring communication line, an electric load, a power supply power line, a battery management system, a battery monitoring wire harness, a converter communication line, an upper computer management and control system, an upper computer communication line, a power supply power line on-off switch, a load side power supply parameter sampling circuit, a controlled power switch, a direct current switch and a protection circuit;
the power supply is characterized in that the power supply is connected with an electric load through a power supply line connected with a power line on-off switch of a power supply power line to form a power path for supplying power to the load by the power supply;
meanwhile, the controlled voltage source bidirectional converter unit is connected in parallel with a power supply line on the load side of the on-off switch of the power line connected with the power supply through the controlled power switch, and is formed into a power path which provides supporting power for uninterrupted power supply by the power load and charges and discharges the power source and the load connected with the power supply line through the energy storage battery unit;
the controlled voltage source bidirectional converter unit is respectively connected with the power supply side electric parameter sampling circuit at the power supply power line on-off switch power supply side connected with the power supply power line, and is connected with the load side power supply parameter sampling circuit at the power supply power line on-off switch load side, and then is respectively connected with the power supply side electric parameter sampling circuit, the power supply power line on-off switch and the load side power supply parameter sampling circuit through monitoring communication lines, so that a communication link for providing uninterrupted power supply for the load and controlling the monitoring, judging and controlling of power supply seamless conversion is formed.
The novel uninterruptible power supply system is characterized in that a battery management system is connected with an energy storage battery unit through a battery monitoring wire harness and is connected with a controlled voltage source bidirectional converter unit through a converter communication line to form a dynamic monitoring management system of the battery unit.
The novel uninterruptible power supply system is characterized in that an energy storage battery unit of a battery management system is connected, and the battery energy storage and power supply system is connected with a controlled voltage source bidirectional converter unit through a direct current switch and a protection circuit and is used for providing uninterruptible power supply supporting power for switching and converting a power supply.
The novel uninterruptible power supply system is characterized in that an upper computer management and control system is respectively connected with a battery management system, a controlled voltage source bidirectional converter unit and a controlled power switch through an upper computer communication line, so that the management and control system for the whole safe operation of the novel uninterruptible power supply system is formed.
The utility model provides a novel uninterrupted power supply system, which utilizes the controlled synchronous operation of an energy storage controlled voltage source and the real-time switching control technology of multiple power sources to realize the mode support of the controlled voltage source and the real-time regulation and control of the conversion of different power sources, saves an STS power source change-over switch which is switched off and switched on first, completes the power source switching function of the nearly zero millisecond uninterrupted power supply, abandons the conventional technical means of two times of power conversion and breaks the system framework fixed mode of the prior technical scheme, innovatively adopts the technical scheme that the load input end of the power supply is connected with the energy storage system of a controlled voltage source converter in parallel, realizes the regulation and control of the on-line switching of different power sources, the uninterrupted power supply which is continuously supported and the electric energy regulation function of controlled charging and discharging, changes the technical scheme of the two-stage conversion of the prior UPS uninterrupted power supply and the load current situation that the energy storage of a UPS battery becomes a zombie asset, and becomes a hemopoietic machine for realizing the peak regulation and creation of the electric power, the problem of prior art application and the defect of system architecture have effectively been solved, for data center and need the power consumption load of uninterrupted power supply provide energy-conserving, high-efficient and create income beneficial effect.
Drawings
Fig. 1 is a schematic diagram of a system architecture of a novel uninterruptible power supply system.
Detailed Description
The present invention is described in detail with reference to the accompanying drawings, but the embodiments described are only a part of embodiments, not all embodiments, in which the present invention is applied to a novel uninterruptible power supply system. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. The techniques and schemes of the present invention are not limited to those given in this example.
As shown in fig. 1, a novel uninterruptible power supply system mainly includes: the system comprises a controlled voltage source bidirectional converter unit (1), an energy storage battery unit (2), a power supply (3), a power supply side electric parameter sampling circuit (4), a monitoring communication line (5), an electric load (6), a power supply power line (7), a battery management system (8), a battery monitoring wire harness (9), a converter communication line (10), an upper computer management system (11), an upper computer communication line (12), a power supply power line on-off switch (13), a load side power supply parameter sampling circuit (14), a controlled power switch (15) and a direct current switch and protection circuit (16);
the power supply is characterized in that a power supply source (3) is connected with an electric load (6) through a power supply line (7) connected with a power line on-off switch (14) of a power supply line to form a power path for supplying power to the load by the power supply source;
meanwhile, the controlled voltage source bidirectional converter unit (1) is connected in parallel to a power supply power line (7) connected with the load side of a power supply power line on-off switch (14) through a controlled power switch (15) to form a power path which provides supporting power for uninterrupted power supply by using a load (6) and charges and discharges a power supply and a load connected with the power supply power line (7) by using an energy storage battery unit (2);
and the controlled voltage source bidirectional converter unit (1) is respectively connected with the power supply side electric parameter sampling circuit (4) at the power supply side of a power supply power line on-off switch (14) connected with a power supply power line (7), and is connected with the load side power supply parameter sampling circuit (14) at the load side of the power supply power line on-off switch (14), and then the controlled voltage source bidirectional converter unit (1) is respectively connected with the power supply side electric parameter sampling circuit (4), the power supply power line on-off switch (14) and the load side power supply parameter sampling circuit (14) through a monitoring communication line (5), so that a communication link for providing uninterrupted power supply for a load, controlling the monitoring, judging and controlling of seamless conversion of the power supply by the controlled voltage source bidirectional converter unit (1) is formed.
In the embodiment, the controlled voltage source bidirectional converter unit (1) has a virtual synchronous machine operation function, monitors the voltage and frequency of the power supply (3) through the power supply side electric parameter sampling circuit (4), and keeps synchronous operation; when the voltage and the frequency supplied by the power supply (3) are monitored in real time and exceed the set allowable range, the controlled voltage source bidirectional converter unit (1) controls the on-off switch (13) of a power supply power line to be switched off through the monitoring communication line (5), the power supply connection path of the power supply (3) is disconnected, and the controlled voltage source bidirectional converter unit (1) continuously and independently operates to supply power for the electric load (6) uninterruptedly; when the controlled voltage source bidirectional converter unit (1) monitors the power supply (3) in real time through the power supply side electric parameter sampling circuit (4) to restore normal power supply, the controlled voltage source bidirectional converter unit (1) monitors the voltage, the frequency and the phase of the power supply (3) through the power supply side electric parameter sampling circuit (4), simultaneously monitors the frequency and the phase of the power load (6) through the load side power supply parameter sampling circuit (14), the controlled voltage source bidirectional converter unit (1) slowly adjusts the frequency and the phase of the power output by the controlled voltage source bidirectional converter unit in real time, when the frequency and the phase of the power supply (3) are in synchronous consistency, the controlled voltage source bidirectional converter unit (1) controls the power supply circuit switch (13) to be closed through the monitoring communication line (5), the power supply (3) supplies power to the power load (6) through the power supply circuit switch (13) and the power supply line (7), meanwhile, the controlled voltage source bidirectional converter unit (1) and the power supply (3) run synchronously, and uninterrupted power supply in the power supply conversion process is realized.
The novel uninterruptible power supply system is characterized in that a battery management system (8) is connected with an energy storage battery unit (2) through a battery monitoring wire harness (9), and is connected with a controlled voltage source bidirectional converter unit (1) through a converter communication line (10) to form a dynamic monitoring management system of the battery unit.
The novel uninterruptible power supply system is characterized in that an energy storage battery unit (2) of a battery management system (8) is connected with a controlled voltage source bidirectional converter unit (1) through a direct current switch and a protection circuit (16), and the battery energy storage and power supply system is formed by switching and converting a power supply to provide uninterruptible power supply supporting power.
The novel uninterruptible power supply system is characterized in that an upper computer management and control system (11) is respectively connected with a battery management system (8), a controlled voltage source bidirectional converter unit (1) and a controlled power switch (15) through an upper computer communication line (12), and the novel uninterruptible power supply system is integrally and safely operated.
The utility model provides a novel uninterruptible power supply system, which utilizes the energy storage controlled voltage source synchronous operation and multi-power source real-time switching control technology to realize the mode support of a controlled voltage source and the uninterrupted regulation and control of different power sources, completes the power source switching function of near zero millisecond uninterrupted power supply, abandons the conventional technical means and breaks through the system framework fixed mode of the prior technical scheme, innovatively adopts the energy storage system which is connected with a controlled voltage source converter in parallel at the load input end of the power supply, realizes the online switching regulation and control of different power sources and the uninterrupted power supply of continuous support, and the power regulation function of controlled power peak regulation and frequency modulation, changes the technical scheme of two-stage conversion of the prior UPS and the current load situation of causing the energy storage of a UPS battery to become a deadweight asset, and enables the energy storage part of the novel uninterruptible power supply system to become a hematopoietic machine with peak regulation, frequency modulation and creation, the problem of prior art application and the defect of system architecture have effectively been solved, for data center and need the power consumption load of uninterrupted power supply provide energy-conserving, high-efficient and create income beneficial effect.
The system structure, the system architecture, the organization relation and the control method of the novel uninterruptible power supply system are provided, however, the configuration and the internal structure of the novel uninterruptible power supply system and the battery energy storage unit system are not limited to the corresponding parts for explanation, and the energy storage unit system with the same function is formed by configuring the battery pack string monitoring device, the type of the energy storage unit and the like.
The specific embodiments are given above, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various modifications, combinations, formulas and parameters can be designed according to the technical scheme of the utility model without creative efforts, and changes, modifications, substitutions and variations of the embodiments can be made without departing from the principle and conceptual framework of the utility model and still fall into the protection scope of the utility model.
Claims (4)
1. A novel uninterruptible power supply system mainly comprises: the system comprises a controlled voltage source bidirectional converter unit, an energy storage battery unit, a power supply side electric parameter sampling circuit, a monitoring communication line, an electric load, a power supply power line, a battery management system, a battery monitoring wire harness, a converter communication line, an upper computer management and control system, an upper computer communication line, a power supply power line on-off switch, a load side power supply parameter sampling circuit, a controlled power switch, a direct current switch and a protection circuit;
the power supply is characterized in that the power supply is connected with an electric load through a power supply line connected with a power line on-off switch of a power supply power line to form a power path for supplying power to the load by the power supply;
meanwhile, the controlled voltage source bidirectional converter unit is connected in parallel with a power supply line on the load side of the on-off switch of the power line connected with the power supply through the controlled power switch, and is formed into a power path which provides supporting power for uninterrupted power supply by the power load and charges and discharges the power source and the load connected with the power supply line through the energy storage battery unit;
the controlled voltage source bidirectional converter unit is respectively connected with the power supply side electric parameter sampling circuit at the power supply power line on-off switch power supply side connected with the power supply power line, and is connected with the load side power supply parameter sampling circuit at the power supply power line on-off switch load side, and then is respectively connected with the power supply side electric parameter sampling circuit, the power supply power line on-off switch and the load side power supply parameter sampling circuit through monitoring communication lines, so that a communication link for providing uninterrupted power supply for the load and controlling the monitoring, judging and controlling of power supply seamless conversion is formed.
2. The system of claim 1, wherein the battery management system is connected to the energy storage battery unit via a battery monitoring harness, and is connected to the controlled-voltage bidirectional converter unit via a converter communication line to form a dynamic monitoring management system for the battery unit.
3. The novel uninterruptible power supply system as claimed in claim 1, wherein the energy storage battery unit connected to the battery management system is connected to the controlled voltage source bidirectional converter unit through a dc switch and a protection circuit, so as to form a battery energy storage and power supply system for switching and converting the power supply to provide the uninterruptible power supply supporting power.
4. The system as claimed in claim 1, wherein the upper computer control system is connected to the battery management system, the controlled-voltage source bidirectional converter unit and the controlled power switch via the upper computer communication line, respectively, so as to form a control system for the overall safe operation of the novel uninterruptible power supply system.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122649796.1U CN216216069U (en) | 2021-11-02 | 2021-11-02 | Novel uninterrupted power source power supply system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122649796.1U CN216216069U (en) | 2021-11-02 | 2021-11-02 | Novel uninterrupted power source power supply system |
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| CN216216069U true CN216216069U (en) | 2022-04-05 |
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| CN202122649796.1U Active CN216216069U (en) | 2021-11-02 | 2021-11-02 | Novel uninterrupted power source power supply system |
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