CN102055202A - Three-phase balancing power-supply energy-saving control management system - Google Patents
Three-phase balancing power-supply energy-saving control management system Download PDFInfo
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- CN102055202A CN102055202A CN2011100234087A CN201110023408A CN102055202A CN 102055202 A CN102055202 A CN 102055202A CN 2011100234087 A CN2011100234087 A CN 2011100234087A CN 201110023408 A CN201110023408 A CN 201110023408A CN 102055202 A CN102055202 A CN 102055202A
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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
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/50—Arrangements for eliminating or reducing asymmetry in polyphase networks
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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
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/70—Smart grids as climate change mitigation technology in the energy generation sector
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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
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
Abstract
The invention discloses a three-phase balancing power-supply energy-saving control management system which comprises a main distribution control cabinet, a plurality of loading units and an array cabinet for distributing power for the plurality of loading units, wherein a plurality of distribution modules are arranged in the array cabinet; the distribution modules are connected to at least one loading unit through distribution branches; each distribution branch is provided with an intelligent ammeter for acquiring the working state data of the corresponding loading unit and a breaker set for switching phases; the working state data of the corresponding loading unit, which is acquired by the intelligent ammeter, is uploaded to the main distribution control cabinet by the corresponding distribution module; and the main distribution control cabinet is used for calculating the data and controlling the corresponding breaker set to switch phases. According to the invention, aiming at an existing data center power supply system, the three-phase balancing optimum control is realized, the power utilization efficiency, power utilization reliability and safety of a data center are greatly improved, the power consumption of the data center is reduced, and the economic benefit is improved.
Description
Technical field
The invention belongs to the control system in ac mains or the ac distribution network, relate in particular to three-phase equilibrium power supply energy-saving control management system.
Background technology
The three-phase imbalance of low voltage electric network is one of subject matter of puzzlement power supply unit always, and low voltage electric network is mostly after the transformer step-down, powers to the user with three-phase four-wire system, is three-phase production electricity consumption and the supply network of single-phase load mixing electricity consumption.When the single-phase user of attaching, power supply department should balancedly be tapped at single-phase load on A, B, the C three-phase.But in real work and in service, the sign of circuit, the carelessness that meets electric personnel are added because single-phase user's uncontrollable increase-volume, the access of high-power single-phase load and the asynchronism of single-phase load electricity consumption etc., have all caused the imbalance of threephase load.Low voltage electric network causes harmful effect will for low voltage electric network and electric equipment if move under the big situation of three-phase load degree of unbalance.
The unbalanced harm of threephase load comprises: increase the electric energy loss of circuit; Increase the electric energy loss of distribution transformer; The distribution transforming minimizing of exerting oneself; Distribution transforming produces zero-sequence current; Influence the safe operation of power consumption equipment etc.Because absolute three-phase equilibrium is non-existent, always there is energy imbalance in various degree in actual three-phase system, so how to avoid serious three-phase imbalance phenomenon, and improving the three-phase equilibrium degree is the primary problem that solves of technical staff.More existing companies release the visual supervision of data center with electricity condition on the market now, by visualizing monitor, can find unbalanced state, again by manual control switch's handover operation, carry out the adjustment of redistributing of threephase load, it is minimum that tri-phase unbalance factor is reached.Current manual control switch is switched the power supply of failing to accomplish to switch each information technoloy equipment, and the three-phase equilibrium degree can not reach more than 90%, in addition, artificial adjustment also exist temporal non-timely with safety on hidden danger, this is not received in data center.
Summary of the invention
Problem to be solved by this invention just provides three-phase equilibrium power supply energy-saving control management system, carry out the optimal control of three-phase equilibrium at available data center feed system, improve power consumption efficiency, the electricity consumption reliability and security of data center greatly, reduce the electric consumption of using of data center, increase economic efficiency.
For solving the problems of the technologies described above, the present invention adopts following technical scheme: three-phase equilibrium power supply energy-saving control management system, comprise total control cabinet for power distribution, some load units and the first cabinet of each row of using for some load unit distribution, it is characterized in that: be provided with several Power entry modules in the described first cabinet of each row, described Power entry module connects at least one load unit by the distribution branch road, is equipped with on every distribution branch road to be used to obtain the intelligent electric meter of corresponding load unit operating state data and to be used for the circuit breaker group that phase place is switched; Operating state data on the corresponding load unit that intelligent electric meter obtains is uploaded to total control cabinet for power distribution by Power entry module, and described total control cabinet for power distribution finishes data computation and the corresponding circuit breaker group of control is finished the phase place switching.
Further, be provided with processor of single chip computer in the described Power entry module, described intelligent electric meter and circuit breaker group are connected on the processor of single chip computer, and the electrical energy parameter before and after operating state data on the load unit that intelligent electric meter obtains and phase place are switched in the distribution branch road is uploaded to total control cabinet for power distribution via processor of single chip computer.Intelligent electric meter, circuit breaker group, processor of single chip computer and total control cabinet for power distribution have been finished the collection of collection numerical value, transmission, calculating, feedback, phase place switching controls, guarantee that the three phase supply degree of balance reaches more than 98%, reduces the waste of energy that therefore user is produced.
Further, described processor of single chip computer is communicated by letter with always adopting RS485 between the control cabinet for power distribution.But real time inspection also keeps all detection data archivals.
Further, also be provided with the three-phase detection unit in the described Power entry module, described three-phase detection unit is connected between main circuit power supply and the processor of single chip computer.Realize three-phase voltage, electric current, zero-sequence current, frequency, active power, reactive power, apparent power, the electric weight to main circuit power supply, the measurement of harmonic wave by the three-phase detection unit; and the three-phase voltage overvoltage of main circuit power supply, under-voltage, decompression, voltage phase sequence mistake, phase shortage, three-phase current overcurrent, zero sequence overcurrent, load overload etc. are sent warning, make corresponding protection control simultaneously.
Beneficial effect of the present invention:, grasp power supply three-phase equilibrium degree in the data center machine room in real time by the mode that the electric power thus supplied to each load unit detects in real time; Total control cabinet for power distribution gathers and carries out the calculating of tri-phase unbalance factor to the distribution situation of all load units in the data central machine room, judges the whether needs adjustment of electric current, Voltage unbalance degree according to standard; Improve degree of balance principle according to minimum switching times and carry out the phase place switching, guarantee that the three phase supply degree of balance of machine room distribution reaches more than 98%, reduce the waste of energy that therefore user is produced.Simultaneously parameters such as data center feed voltage, active power, reactive power, harmonic wave are detected, reflect the power supply quality of local machine room, and in time carry out overvoltage, warnings such as under-voltage, overload, phase shortage, improve the operational reliability of data center machine room.
Description of drawings
The present invention is described further below in conjunction with accompanying drawing:
Fig. 1 is the connection diagram of three-phase equilibrium power supply energy-saving control management system of the present invention;
Fig. 2 is the fundamental diagram of Power entry module of the present invention.
Embodiment
The present invention is a three-phase equilibrium power supply energy-saving control management system, comprise total control cabinet for power distribution 1, some load units and the first cabinet of each row of using for some load unit distribution 2, be provided with several Power entry modules 4 in the described first cabinet of each row 2, described Power entry module 4 connects at least one load unit 3 by the distribution branch road, is equipped with on every distribution branch road to be used to obtain the intelligent electric meter 44 of corresponding load unit 3 operating state datas and to be used for the circuit breaker group 43 that phase place is switched; Operating state data on the corresponding load unit 3 that intelligent electric meter 44 obtains is uploaded to total control cabinet for power distribution 1 by Power entry module 4, and described total control cabinet for power distribution 1 finishes data computation and the corresponding circuit breaker group 43 of control is finished the phase place switching.Be provided with processor of single chip computer 41 in the Power entry module 4, described intelligent electric meter 44 and circuit breaker group 43 are connected on the processor of single chip computer 41, and the electrical energy parameter before and after operating state data on the load unit 3 that intelligent electric meter 44 obtains and phase place are switched in the distribution branch road is uploaded to total control cabinet for power distribution 1 via processor of single chip computer 41.Also be provided with three-phase detection unit 42 in the Power entry module 4, described three-phase detection unit 42 is connected between main circuit power supply and the processor of single chip computer 41.Processor of single chip computer 41 is communicated by letter with always adopting RS485 between the control cabinet for power distribution 1.
Explain characteristics of the present invention below by a concrete embodiment:
The three-phase equilibrium power supply energy-saving control management system of data center's distribution: at the actual power state of data center machine room, adopt the three-phase four-wire system transmission line, load unit 3 is a rack.
4 Power entry modules 4 are set in the first cabinet of each row 2, and single Power entry module 4 can be realized A, B, each 5 tunnel output of C three-phase, and promptly each Power entry module 4 exportable A is 5 mutually, 5 mutually of B, 5 mutually of C.Adopt A, B, C three 1 rack that is connected, four Power entry modules 4 can supply 20 racks at most so, guarantee each rack dual power supply, and reach every distribution branch road phase place and can between three-phase, switch, both guaranteed single rack power supply safety, and can when the whole tri-phase unbalance factor of machine room be obvious, adjust and control again; Intelligent electric meter 44 and circuit breaker group 43 are corresponding with rack quantity, realize rack real-time working status detection on every distribution branch road; If run into the situation of high density rack, then corresponding rack amount can reduce.
1, the intelligent electric meter 44 on every distribution branch road obtains electric current, voltage and the phase data on this distribution branch road and is delivered on the processor of single chip computer 41;
2, processor of single chip computer 41 arrives total control cabinet for power distribution 1 by RS485 communication with each distribution branch road data upload; The distribution situation of all racks gathers in total 1 pair of data central machine room of control cabinet for power distribution, carry out the calculating of tri-phase unbalance factor, judge according to the standard of " GB-T15543-1995 quality of power supply three-phase voltage allows degree of unbalance " whether electric current, Voltage unbalance degree need to adjust;
If 3 tri-phase unbalance factors exceed the standard permissible value, and never recover within a certain period of time, so total control cabinet for power distribution 1 enters the phase place changeover program automatically, with the Single Cabinet load is that unit carries out the phase place adjustment: total control cabinet for power distribution 1 improves degree of balance principle according to minimum switching times and sends the switching controls instruction to Power entry module 4, circuit breaker group 43 is subjected to 1 control of total control cabinet for power distribution to finish phase place to switch, the three-phase equilibrium degree of the whole distribution of data center machine room is reached more than 98%;
4, cycle detection.
Meanwhile; three-phase voltage, electric current, zero-sequence current, frequency, active power, reactive power, apparent power, the electric weight to main circuit power supply, the measurement of harmonic wave are realized in three-phase detection unit 42 in the Power entry module 4; and the three-phase voltage overvoltage of main circuit power supply, under-voltage, decompression, voltage phase sequence mistake, phase shortage, three-phase current overcurrent, zero sequence overcurrent, load overload etc. are sent warning, make corresponding protection control simultaneously.
Except that above preferred embodiment, the present invention also has other execution mode, and those skilled in the art can make various changes and distortion according to the present invention, only otherwise break away from spirit of the present invention, all should belong to the defined scope of claims of the present invention.
Claims (4)
1. three-phase equilibrium power supply energy-saving control management system, comprise total control cabinet for power distribution (1), some load units and the first cabinet of each row of using for some load unit distribution (2), it is characterized in that: be provided with several Power entry modules (4) in the described first cabinet of each row (2), described Power entry module (4) connects at least one load unit (3) by the distribution branch road, is equipped with on every distribution branch road to be used to obtain the intelligent electric meter (44) of corresponding load unit (3) operating state data and to be used for the circuit breaker group (43) that phase place is switched; Operating state data on the corresponding load unit (3) that intelligent electric meter (44) obtains is uploaded to total control cabinet for power distribution (1) by Power entry module (4), and described total control cabinet for power distribution (1) finishes data computation and the corresponding circuit breaker group (43) of control is finished the phase place switching.
2. three-phase equilibrium power supply energy-saving control management system according to claim 1, it is characterized in that: be provided with processor of single chip computer (41) in the described Power entry module (4), described intelligent electric meter (44) and circuit breaker group (43) are connected on the processor of single chip computer (41), and the electrical energy parameter before and after operating state data on the load unit (3) that intelligent electric meter (44) obtains and phase place are switched in the distribution branch road is uploaded to total control cabinet for power distribution (1) via processor of single chip computer (41).
3. three-phase equilibrium power supply energy-saving control management system according to claim 2 is characterized in that: described processor of single chip computer (41) is communicated by letter with always adopting RS485 between the control cabinet for power distribution (1).
4. according to claim 2 or 3 described three-phase equilibrium power supply energy-saving control management system, it is characterized in that: also be provided with three-phase detection unit (42) in the described Power entry module (4), described three-phase detection unit (42) is connected between main circuit power supply and the processor of single chip computer (41).
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| CN2011100234087A CN102055202B (en) | 2011-01-21 | 2011-01-21 | Three-phase balancing power-supply energy-saving control management system |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102684213A (en) * | 2012-06-08 | 2012-09-19 | 平阴县供电公司 | Low-voltage three-phase load unbalance automatic regulation system |
| CN103311927A (en) * | 2012-03-06 | 2013-09-18 | 北京联动天翼科技有限公司 | Machine room distributed harmonic wave processing method |
| CN103310086A (en) * | 2012-03-08 | 2013-09-18 | 郑洪斌 | Assembly system of VIP (Very Important Person) intelligent modular data center |
| CN103400710A (en) * | 2013-08-22 | 2013-11-20 | 秦宇翔 | Balanced leveling method for three-phase loads of low-voltage power network and automatic load transferring switch |
| CN103795078A (en) * | 2013-09-12 | 2014-05-14 | 苏州市龙源电力科技股份有限公司 | Household photovoltaic grid-connected power generation system |
| US9997916B2 (en) | 2015-12-29 | 2018-06-12 | International Business Machines Corporation | Continuously balancing multiple phases of a power grid |
| CN109217341A (en) * | 2018-10-09 | 2019-01-15 | 郑州云海信息技术有限公司 | A kind of appraisal procedure and system of data center's tri-phase unbalance factor |
| CN110518604A (en) * | 2019-08-27 | 2019-11-29 | 深圳市共济科技股份有限公司 | Deployed with devices method, intelligent terminal and storage medium based on degree of balance control |
| CN113471992A (en) * | 2021-05-23 | 2021-10-01 | 山东英信计算机技术有限公司 | Cabinet power supply method, system, equipment and medium |
| CN116780353A (en) * | 2023-06-30 | 2023-09-19 | 广东云下汇金科技有限公司 | Data center power distribution column cabinet with three-phase balance function and control method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2924883Y (en) * | 2006-07-19 | 2007-07-18 | 徐州新电科技开发有限公司 | Three-phase imbalance regulating and powerless compensating device |
| CN101093938A (en) * | 2006-06-23 | 2007-12-26 | 陈家欣 | Intelligent electricity saver in use for three-phase AC electrical supply system |
| CN101179197A (en) * | 2007-12-03 | 2008-05-14 | 黑龙江中星科技股份有限公司 | Three-phase load automatic equalization device of power distribution network |
| CN101651364A (en) * | 2009-08-17 | 2010-02-17 | 河南博特电气有限公司 | Remote automation control high-voltage measurement comprehensive distribution equipment |
| CN202026094U (en) * | 2011-01-21 | 2011-11-02 | 浙江浙大网新能源技术有限公司 | Three-phase balance power supply energy-saving control management system |
-
2011
- 2011-01-21 CN CN2011100234087A patent/CN102055202B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101093938A (en) * | 2006-06-23 | 2007-12-26 | 陈家欣 | Intelligent electricity saver in use for three-phase AC electrical supply system |
| CN2924883Y (en) * | 2006-07-19 | 2007-07-18 | 徐州新电科技开发有限公司 | Three-phase imbalance regulating and powerless compensating device |
| CN101179197A (en) * | 2007-12-03 | 2008-05-14 | 黑龙江中星科技股份有限公司 | Three-phase load automatic equalization device of power distribution network |
| CN101651364A (en) * | 2009-08-17 | 2010-02-17 | 河南博特电气有限公司 | Remote automation control high-voltage measurement comprehensive distribution equipment |
| CN202026094U (en) * | 2011-01-21 | 2011-11-02 | 浙江浙大网新能源技术有限公司 | Three-phase balance power supply energy-saving control management system |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103311927A (en) * | 2012-03-06 | 2013-09-18 | 北京联动天翼科技有限公司 | Machine room distributed harmonic wave processing method |
| CN103310086A (en) * | 2012-03-08 | 2013-09-18 | 郑洪斌 | Assembly system of VIP (Very Important Person) intelligent modular data center |
| CN103310086B (en) * | 2012-03-08 | 2017-12-26 | 郑洪斌 | A kind of intelligent modularized data center's general assembly systems of VIP |
| CN102684213A (en) * | 2012-06-08 | 2012-09-19 | 平阴县供电公司 | Low-voltage three-phase load unbalance automatic regulation system |
| CN103400710A (en) * | 2013-08-22 | 2013-11-20 | 秦宇翔 | Balanced leveling method for three-phase loads of low-voltage power network and automatic load transferring switch |
| CN103795078A (en) * | 2013-09-12 | 2014-05-14 | 苏州市龙源电力科技股份有限公司 | Household photovoltaic grid-connected power generation system |
| US9997916B2 (en) | 2015-12-29 | 2018-06-12 | International Business Machines Corporation | Continuously balancing multiple phases of a power grid |
| US10608435B2 (en) | 2015-12-29 | 2020-03-31 | International Business Machines Corporation | Continuously balancing multiple phases of a power grid |
| CN109217341A (en) * | 2018-10-09 | 2019-01-15 | 郑州云海信息技术有限公司 | A kind of appraisal procedure and system of data center's tri-phase unbalance factor |
| CN110518604A (en) * | 2019-08-27 | 2019-11-29 | 深圳市共济科技股份有限公司 | Deployed with devices method, intelligent terminal and storage medium based on degree of balance control |
| CN113471992A (en) * | 2021-05-23 | 2021-10-01 | 山东英信计算机技术有限公司 | Cabinet power supply method, system, equipment and medium |
| CN113471992B (en) * | 2021-05-23 | 2024-02-09 | 山东英信计算机技术有限公司 | Cabinet power supply method, system, equipment and medium |
| CN116780353A (en) * | 2023-06-30 | 2023-09-19 | 广东云下汇金科技有限公司 | Data center power distribution column cabinet with three-phase balance function and control method thereof |
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