CN111817334A - Direct-current power supply and distribution control method and system and direct-current micro data center - Google Patents
Direct-current power supply and distribution control method and system and direct-current micro data center Download PDFInfo
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- CN111817334A CN111817334A CN202010677134.2A CN202010677134A CN111817334A CN 111817334 A CN111817334 A CN 111817334A CN 202010677134 A CN202010677134 A CN 202010677134A CN 111817334 A CN111817334 A CN 111817334A
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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
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/36—Arrangements for transfer of electric power between ac networks via a high-tension dc link
-
- 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
- H02J1/00—Circuit arrangements for dc mains or dc distribution networks
- H02J1/10—Parallel operation of dc sources
-
- 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
- H02J1/00—Circuit arrangements for dc mains or dc distribution networks
- H02J1/10—Parallel operation of dc sources
- H02J1/12—Parallel operation of dc generators with converters, e.g. with mercury-arc rectifier
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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
- H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
- H02J2300/20—The dispersed energy generation being of renewable origin
- H02J2300/22—The renewable source being solar energy
- H02J2300/24—The renewable source being solar energy of photovoltaic origin
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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
- H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
- H02J2300/20—The dispersed energy generation being of renewable origin
- H02J2300/28—The renewable source being wind energy
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/60—Arrangements for transfer of electric power between AC networks or generators via a high voltage DC link [HVCD]
Abstract
The invention discloses a direct current power supply and distribution control method, a direct current power supply and distribution control system and a direct current micro data center, wherein the direct current power supply and distribution control method comprises the following steps: controlling the on-line power generation unit and the direct current network end to provide direct current for the load through the bus output side; monitoring real-time voltage and real-time current of the bus output side; judging whether the real-time voltage is smaller than a preset protection voltage or not; if yes, controlling the output side of the bus to output a preset protection current; if not, controlling the output side of the bus to output a preset protection voltage. The invention reduces the UPS configuration in the traditional alternating current power supply and distribution and reduces the energy consumption. The operation stability of the power supply and distribution system and the operation safety of the direct-current micro data center are improved.
Description
Technical Field
The invention relates to the field of data centers, in particular to a direct-current power supply and distribution control method and system and a direct-current micro data center applying the method and/or the system.
Background
In the field of data center applications, IT devices such as servers, switches, routers, firewalls, and the like are common. These devices are high precision devices that require a stable voltage input, and therefore UPS's are commonly configured to ensure a stable voltage output, and emergency power supplies are configured to prevent power grid outages and the like. The conventional design method is alternating current power supply and distribution, namely alternating current input, alternating current output and electric loads are alternating current. In recent years, designs of alternating current input, direct current output and power utilization loads of direct current are gradually developed, but the designs of alternating current to direct current still exist, and energy loss of alternating current to direct current still exists.
In the actual situation, the energy consumption of the data center is huge, and a heavy burden is caused to the government to the enterprises. The country has strictly controlled the construction of data centers, and guides to accelerate the construction of green data centers, reduce energy consumption and improve resource utilization.
Therefore, how to design a power supply and distribution technical scheme capable of saving energy consumption of the dc micro data center is an urgent technical problem to be solved in the industry.
Disclosure of Invention
The invention provides a direct current power supply and distribution control method and system and a direct current micro data center applying the method and/or system, aiming at solving the technical problem that the direct current micro data center in the related technology is overlarge in energy consumption.
The technical scheme adopted by the invention is as follows:
the invention provides a direct current power supply and distribution control method, which comprises the following steps: controlling the on-line power generation unit and the direct current network end to provide direct current for the load through the bus output side; monitoring real-time voltage and real-time current of the bus output side; judging whether the real-time voltage is smaller than a preset protection voltage or not; if yes, controlling the output side of the bus to output a preset protection current; if not, controlling the output side of the bus to output a preset protection voltage.
In one embodiment, the method further comprises: and controlling the online energy storage unit to exchange electric energy with the output side of the bus.
In one embodiment, the controlling the exchange of the electric energy between the online energy storage unit and the output side of the bus comprises: when the real-time voltage is greater than or equal to the equalizing charge voltage, the online energy storage unit performs equalizing charge; or when the real-time voltage is less than the uniform charging voltage and greater than or equal to the floating charging voltage, the online energy storage unit carries out floating charging; or when the real-time voltage is smaller than the floating charge voltage, the online energy storage unit discharges.
In one embodiment, the method further comprises: when the real-time voltage is greater than the overhigh protection voltage or the energy storage of the online energy storage unit reaches a first preset value, stopping charging; and when the real-time voltage is less than the under-voltage protection voltage or the energy storage of the online energy storage unit is lower than a second preset value, stopping discharging.
In an embodiment, the preset protection voltage is the excessive protection voltage, and the preset protection current is set according to a rated power of a load, an operation coefficient, and the float voltage.
The present invention also provides a dc power supply and distribution control system, including: a DC network terminal electrically connected to the bus output side through a DC/DC converter; an online power generation unit electrically connected to the bus bar output side; and the management unit is respectively and electrically connected with the direct current power grid input end and the online power generation unit, and controls the direct current power grid input end and the online power generation unit to coordinately output direct current to the bus output side so as to meet the load.
In one embodiment, the bus bar further comprises an online energy storage unit electrically connected to the bus bar output side; the online energy storage unit is used for exchanging electric energy with the output side of the bus.
In one embodiment, the system further comprises an alternating current network terminal electrically connected to the bus bar output side through an AC/DC converter.
In one embodiment, the online power generation unit comprises a photovoltaic power generation unit and/or a wind power generation unit, the photovoltaic power generation unit is electrically connected to the bus output side directly or through a DC/DC converter, and the wind power generation unit is electrically connected to the bus output side directly or through an AC/DC converter.
The invention provides a direct current micro data center, which is supplied with electric energy by the direct current power supply and distribution control method.
The invention provides a direct current micro data center, which is supplied with electric energy by the direct current power supply and distribution control system.
Compared with the prior art, the invention has the following advantages.
Direct current is provided to the bus through the direct current power grid input end and the online power generation unit, UPS configuration in the traditional alternating current power supply and distribution is reduced, and energy consumption is reduced. Through setting up online energy storage unit, when direct current power grid input and online power generation unit power supply are insufficient, provide emergent electric energy, ensured the stability of supplying and distributing power, improved the operation security of little data center of direct current.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a schematic block diagram of a flow of a dc power supply and distribution control method in an embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The principles and construction of the present invention will be described in detail below with reference to the drawings and examples.
Referring to fig. 1, the present invention provides a dc power supply and distribution control method. The method can be applied to a direct current micro data center, wherein the direct current micro data center generally comprises IT equipment such as a server, a switch, a router, a firewall and the like, and the equipment belongs to high-precision equipment, so that stable voltage and current are required. The method comprises the following steps: controlling the on-line power generation unit and the direct current network end to provide direct current for the load through the bus output side; monitoring real-time voltage and real-time current of the output side of the bus; judging whether the real-time voltage is smaller than a preset protection voltage or not; if yes, controlling the output side of the bus to output a preset protection current; if not, controlling the output side of the bus to output a preset protection voltage. The invention provides direct current to the bus through the direct current power grid input end and the online power generation unit, thereby reducing UPS configuration in the traditional alternating current power supply and distribution and reducing energy consumption.
Specifically, controlling the online photovoltaic power generation unit and/or the online wind power generation unit to provide the direct current for the load through the bus output side specifically includes controlling the online photovoltaic power generation unit and/or the online wind power generation unit to be electrically connected to the bus output side respectively and providing the direct current for the load through the bus output side. In one embodiment, the controlling the on-line power generating unit and the dc power grid end to provide dc power to the load through the bus bar output side specifically includes: firstly, controlling an online power generation unit to provide direct current for a load through a bus output side, monitoring real-time voltage and/or real-time current of the bus output side at the moment, if the real-time voltage and/or the real-time current can meet the load requirement, not performing further control, and if the real-time voltage and/or the real-time current can not meet the load requirement, further controlling a direct current network end to provide direct current for the load through the bus output side.
In a preferred embodiment, the direct current power supply and distribution control method further comprises controlling the online energy storage unit to exchange electric energy with the output side of the bus.
It should be noted that the online energy storage unit has the following voltage values: an over-high protection voltage, an even charging voltage, a float charging voltage, an under-voltage protection voltage. Wherein, the over-high protection voltage, the uniform charging voltage, the floating charging voltage and the undervoltage protection voltage. For example, the overvoltage protection voltage of an online energy storage unit is 58V, the average charging voltage is 56.8V, the floating charging voltage is 53.4V, and the undervoltage protection voltage is 46V. In this embodiment, the predetermined protection voltage is an over-high protection voltage. The preset protection current is set according to the rated power, the operation coefficient and the floating charge voltage of the load, and is expressed as a mathematical relation: preset protection current = total rated power of all loads operating coefficient k/float voltage. In the formula, all loads refer to: when the online energy storage units discharge to the output side of the bus, all loads do not include the online energy storage units. When the output side of the bus charges the online energy storage units, all loads comprise the online energy storage units. The total rated power is the running power, and the running coefficient k is generally 30% -40%.
Specifically, controlling the exchange of the electric energy between the online energy storage unit and the output side of the bus comprises: and monitoring the real-time voltage and comparing the real-time voltage with the magnitude of the over-high protection voltage, the uniform charging voltage, the floating charging voltage and the under-voltage protection voltage. When the real-time voltage is greater than or equal to the equalizing charge voltage, the online energy storage unit performs equalizing charge; or when the real-time voltage is less than the uniform charging voltage and more than or equal to the floating charging voltage, the online energy storage unit carries out floating charging; or when the real-time voltage is smaller than the float charging voltage, the online energy storage unit discharges. Wherein: and when the online energy storage unit is in a charging state and the real-time voltage is monitored to be greater than the overhigh protection voltage or the energy storage of the online energy storage unit reaches a first preset value, stopping charging. And when the online energy storage unit is in a discharging state and the real-time voltage is monitored to be less than the under-voltage protection voltage or the energy storage of the online energy storage unit is lower than a second preset value, stopping discharging. And when the real-time voltage is smaller than the over-high protection voltage, the bus output side outputs a preset protection current. And when the real-time voltage is greater than or equal to the overhigh protection voltage, controlling the output side of the bus to output the overhigh protection voltage.
In an alternative embodiment, the input voltage of the DC network terminal is 400V, and the DC network terminal converts 400V into 48V through the DC/DC converter and inputs the 48V to the output side of the bus. The online photovoltaic power generation unit directly sends out 48V voltage to be input to the output side of the bus or converts other voltage values into 48V voltage to be input to the output side of the bus through a DC/DC converter. The online wind power generation unit converts alternating current into 48V direct current through an AC/DC converter and inputs the direct current to the output side of the bus. The first predetermined value may be 100% and the second predetermined value may be 20%. In other embodiments, the relevant electrical parameters are set according to specific needs.
The invention further replaces the conventional UPS by arranging the online energy storage unit, provides emergency electric energy when the power supply of the input end of the direct current power grid and the online power generation unit is insufficient, ensures the stability of power supply and distribution, and ensures the safe operation of the output side of the bus and the direct current load side. The power utilization is more efficient, safer, more energy-saving and more miniaturized.
The invention also provides a direct current power supply and distribution control system, which comprises: a DC network terminal electrically connected to the bus output side through a DC/DC converter; an online power generation unit electrically connected to a bus output side; and the management unit is respectively and electrically connected to the direct current power grid input end and the online power generation unit, and controls the direct current power grid input end and the online power generation unit to coordinately output direct current to the bus output side so as to meet the load.
Specifically, the direct current network end is connected to the bus through a DC/DC converter. The online power generation unit comprises a photovoltaic power generation unit and/or a wind power generation unit, the photovoltaic power generation unit is electrically connected to the output side of the bus directly or through a DC/DC converter, and the wind power generation unit is electrically connected to the output side of the bus directly or through an AC/DC converter.
In a further embodiment, the system further comprises an online energy storage unit electrically connected to the output side of the bus; the online energy storage unit is used for exchanging electric energy with the output side of the bus. When the direct current network end, the alternating current network end and the online power generation unit provide insufficient direct current for the load through the bus output side, the online energy storage unit discharges and provides direct current for the load through the bus output side. When the direct current network end, the alternating current network end and the online power generation unit provide sufficient direct current for the load through the bus output side, the bus output side charges the online energy storage unit.
In an optional embodiment, the DC power supply and distribution control system further comprises an AC power grid terminal electrically connected to the output side of the bus through an AC/DC converter.
The invention also provides a direct current micro data center which is supplied with electric energy by the direct current power supply and distribution control method.
The invention also provides a direct current micro data center which is supplied with electric energy by the direct current power supply and distribution control system.
Compared with the prior art, the invention has the following advantages.
Direct current is provided to the bus through the direct current power grid input end and the online power generation unit, UPS configuration in the traditional alternating current power supply and distribution is reduced, and energy consumption is reduced. Through setting up online energy storage unit, when direct current power grid input and online power generation unit power supply are insufficient, provide emergent electric energy, ensured the stability of supplying and distributing power.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (11)
1. A direct current power supply and distribution control method is characterized by comprising the following steps:
controlling the on-line power generation unit and the direct current network end to provide direct current for the load through the bus output side;
monitoring real-time voltage and real-time current of the bus output side;
judging whether the real-time voltage is smaller than a preset protection voltage or not; if yes, controlling the output side of the bus to output a preset protection current; if not, controlling the output side of the bus to output a preset protection voltage.
2. The dc power supply and distribution control method according to claim 1, further comprising: and controlling the online energy storage unit to exchange electric energy with the output side of the bus.
3. The dc power supply and distribution control method of claim 2, wherein the controlling the on-line energy storage unit to exchange power with the output side of the bus comprises:
when the real-time voltage is greater than or equal to the equalizing charge voltage, the online energy storage unit performs equalizing charge; or
When the real-time voltage is less than the uniform charging voltage and greater than or equal to the floating charging voltage, the online energy storage unit carries out floating charging; or
And when the real-time voltage is less than the floating charge voltage, the online energy storage unit discharges.
4. The dc power supply and distribution control method according to claim 3, further comprising: when the real-time voltage is greater than the overhigh protection voltage or the energy storage of the online energy storage unit reaches a first preset value, stopping charging;
and when the real-time voltage is less than the under-voltage protection voltage or the energy storage of the online energy storage unit is lower than a second preset value, stopping discharging.
5. The dc power supply and distribution control method according to claim 4, wherein the predetermined protection voltage is the excessive protection voltage, and the predetermined protection current is set according to a rated power of a load, an operation coefficient, and the float voltage.
6. A direct current power supply and distribution control system is characterized by comprising:
a DC network terminal electrically connected to the bus output side through a DC/DC converter;
an online power generation unit electrically connected to the bus bar output side;
and the management unit is respectively and electrically connected with the direct current power grid input end and the online power generation unit, and controls the direct current power grid input end and the online power generation unit to coordinately output direct current to the bus output side so as to meet the load.
7. The dc power supply and distribution control system according to claim 6, further comprising an online energy storage unit electrically connected to the bus output side; the online energy storage unit is used for exchanging electric energy with the output side of the bus.
8. The DC power supply and distribution control system of claim 7, further comprising an AC grid terminal electrically connected to the bus output side through an AC/DC converter.
9. The DC power supply and distribution control system according to claim 8, wherein the online power generation unit comprises a photovoltaic power generation unit and/or a wind power generation unit, the photovoltaic power generation unit is electrically connected to the bus output side directly or through a DC/DC converter, and the wind power generation unit is electrically connected to the bus output side directly or through an AC/DC converter.
10. A dc micro data center, wherein the dc power supply and distribution control method according to any one of claims 1 to 5 is used to supply electric power.
11. A dc micro data centre which is powered by a dc power supply and distribution control system as claimed in any one of claims 6 to 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010677134.2A CN111817334A (en) | 2020-07-14 | 2020-07-14 | Direct-current power supply and distribution control method and system and direct-current micro data center |
| PCT/CN2021/105439 WO2022012427A1 (en) | 2020-07-14 | 2021-07-09 | Direct-current power supply and distribution control method and system and direct-current micro data center |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010677134.2A CN111817334A (en) | 2020-07-14 | 2020-07-14 | Direct-current power supply and distribution control method and system and direct-current micro data center |
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| CN111817334A true CN111817334A (en) | 2020-10-23 |
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| CN202010677134.2A Pending CN111817334A (en) | 2020-07-14 | 2020-07-14 | Direct-current power supply and distribution control method and system and direct-current micro data center |
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| WO (1) | WO2022012427A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022012427A1 (en) * | 2020-07-14 | 2022-01-20 | 珠海格力电器股份有限公司 | Direct-current power supply and distribution control method and system and direct-current micro data center |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115764848B (en) * | 2023-01-09 | 2023-07-25 | 苏州浪潮智能科技有限公司 | Supply network for a communication device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201562990U (en) * | 2009-12-14 | 2010-08-25 | 中国地质大学（武汉） | Power supply charging device for microcomputer control ship |
| CN102055368A (en) * | 2010-12-20 | 2011-05-11 | 江苏省电力公司南京供电公司 | 100-KVA micro-grid energy storage bidirectional converter |
| CN102122826A (en) * | 2011-01-17 | 2011-07-13 | 中国南方电网有限责任公司电网技术研究中心 | Energy storage bidirectional current converter for high-capacity storage battery |
| CN104362402A (en) * | 2014-09-19 | 2015-02-18 | 杭州浙畅电力设备有限公司 | Stepped constant current charging-discharging method |
| CN109217673A (en) * | 2018-11-06 | 2019-01-15 | 西安交通大学 | A kind of energy accumulation current converter and its control method |
| CN111106404A (en) * | 2019-11-29 | 2020-05-05 | 合肥国轩高科动力能源有限公司 | Floating charge optimization method for lithium iron phosphate battery |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120150679A1 (en) * | 2012-02-16 | 2012-06-14 | Lazaris Spyros J | Energy management system for power transmission to an intelligent electricity grid from a multi-resource renewable energy installation |
| CN102916481B (en) * | 2012-08-16 | 2015-08-26 | 深圳微网能源管理系统实验室有限公司 | A kind of energy management method of direct current micro-grid system |
| CN104505867B (en) * | 2015-01-04 | 2017-02-01 | 南京国臣信息自动化技术有限公司 | Alternating current and direct current hybrid micro-grid system and control strategy thereof |
| CN104810822B (en) * | 2015-05-22 | 2017-11-07 | 中国电力科学研究院 | A kind of two-way DC/DC of microgrid changes the control method of sagging coefficient |
| CN108832635A (en) * | 2018-07-18 | 2018-11-16 | 杭州新融方科技有限公司 | Alternating current-direct current mixing micro-capacitance sensor and its operating method |
| CN110854983B (en) * | 2019-11-29 | 2021-05-25 | 国家电网有限公司 | Voltage stabilizing device and method for stabilizing sudden change of direct current bus voltage based on super capacitor |
| CN111817334A (en) * | 2020-07-14 | 2020-10-23 | 珠海格力电器股份有限公司 | Direct-current power supply and distribution control method and system and direct-current micro data center |
-
2020
- 2020-07-14 CN CN202010677134.2A patent/CN111817334A/en active Pending
-
2021
- 2021-07-09 WO PCT/CN2021/105439 patent/WO2022012427A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201562990U (en) * | 2009-12-14 | 2010-08-25 | 中国地质大学（武汉） | Power supply charging device for microcomputer control ship |
| CN102055368A (en) * | 2010-12-20 | 2011-05-11 | 江苏省电力公司南京供电公司 | 100-KVA micro-grid energy storage bidirectional converter |
| CN102122826A (en) * | 2011-01-17 | 2011-07-13 | 中国南方电网有限责任公司电网技术研究中心 | Energy storage bidirectional current converter for high-capacity storage battery |
| CN104362402A (en) * | 2014-09-19 | 2015-02-18 | 杭州浙畅电力设备有限公司 | Stepped constant current charging-discharging method |
| CN109217673A (en) * | 2018-11-06 | 2019-01-15 | 西安交通大学 | A kind of energy accumulation current converter and its control method |
| CN111106404A (en) * | 2019-11-29 | 2020-05-05 | 合肥国轩高科动力能源有限公司 | Floating charge optimization method for lithium iron phosphate battery |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022012427A1 (en) * | 2020-07-14 | 2022-01-20 | 珠海格力电器股份有限公司 | Direct-current power supply and distribution control method and system and direct-current micro data center |
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| WO2022012427A1 (en) | 2022-01-20 |
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