CN104124693A - Three-phase motor power supply energy-saving device - Google Patents
Three-phase motor power supply energy-saving device Download PDFInfo
- Publication number
- CN104124693A CN104124693A CN201310154482.1A CN201310154482A CN104124693A CN 104124693 A CN104124693 A CN 104124693A CN 201310154482 A CN201310154482 A CN 201310154482A CN 104124693 A CN104124693 A CN 104124693A
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- China
- Prior art keywords
- cut
- ball switch
- power
- contactor
- cable
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- Y02B70/3225—Demand response systems, e.g. load shedding, peak shaving
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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
- Y04S20/222—Demand response systems, e.g. load shedding, peak shaving
Abstract
The invention provides a three-phase motor power supply energy-saving device which is formed by a power grid three-phase voltage input 1, a first air switch 2, a second air switch 3, a first AC contactor 4, a supply voltage regulator 5, a current sensor 6, a third air switch 7, a load 8, a second AC contactor 9 and a main control computer 10. The device can effectively improve the condition that the actual output power and the load power of the motor are unmatched, thereby reducing loss of electric equipment and line loss and improving power utilization quality. Copper loss and line loss of a power distribution network can be reduced by 5%-30%, iron loss of a power distribution transformer can be reduced by 5%-15%, and the overall energy-saving effect can be improved by 5%-15%.
Description
Technical field
The present invention relates to a kind of electrical machine energy-saving device, be specifically related to three phase electric machine power supply energy-saving device, belong to 380V mains supply technical field.
Background technology
Along with industrial production develop rapidly, the problem of the energy becomes one of bottleneck of developmental limitation gradually, and enterprise is increasing to the conscious demand of products that save energy and resources, and the motor product that improves utilization rate of electrical has wide potentiality to be exploited and the market space.As nonlinear load, usually there is real output and the unmatched situation of bearing power in three motors, enterprise's selected motor of present used plant equipment is all to come supporting by the required maximum power of machinery, the fully loaded time seldom in actual use, if the be on duty equipment such as use, press machine of peak period of elevator is all intermittently used, under the frequent zero load of motor or light-load state, move, can cause power wastage.This waste mainly comes from the loss of line loss and power consumption equipment, reduces the quality of power supply.
Summary of the invention
For realizing the energy-conservation of motor power supply.The object of the present invention is to provide a kind of electrical machine energy-saving device.
being constructed as follows of a kind of electrical machine energy-saving device provided by the invention:
As shown in Figure 1, this device consists of electrical network three-phase voltage input the 1, first cut-in without ball switch 2, the second cut-in without ball switch 3, the first A.C. contactor 4, supply power voltage adjuster 5, current sensor 6, the 3rd cut-in without ball switch 7, load 8, the second A.C. contactor 9, main control computer 10.
Electrical network three-phase voltage input 1 is connected with the first cut-in without ball switch 2 by cable; The first cut-in without ball switch 2 is connected with the second cut-in without ball switch 3 by cable; The second cut-in without ball switch 3 is connected with the first A.C. contactor 4 by cable; The first A.C. contactor 4 is connected with supply power voltage adjuster 5 by cable; Supply power voltage adjuster 5 is connected with current sensor 6 by cable; Current sensor 6 is connected with the 3rd cut-in without ball switch 7 by cable; The 3rd cut-in without ball switch 7 is connected with load 8 by cable.
The second A.C. contactor 9 by cable be connected with the first cut-in without ball switch 2, the second cut-in without ball switch 3, main control computer 10, the 3rd cut-in without ball switch 7, load 8 be connected.
Main control computer 10 by cable be connected with the first cut-in without ball switch 2, the second cut-in without ball switch 3, the first A.C. contactor 4, supply power voltage adjuster 5, current sensor 6, the 3rd cut-in without ball switch 7, load 8 is connected.
the job step of a kind of electrical machine energy-saving device provided by the invention is as follows.
(1) first cut-in without ball switch 2 is opened, and realizes power supply network and power supply unit conducting.The second cut-in without ball switch 3 is opened, and realizes and controls voltage input signal conducting and the 5 input voltage conductings of supply power voltage adjuster.The 3rd cut-in without ball switch 7 is opened, and realizes and controls Voltage-output signal conduction and the 5 output voltage conductings of supply power voltage adjuster.
(2) current sensor 6 completes the measurement to three phase electric machine 8 output currents, and measurement result is sent into main control computer 11, in main control computer 11, complete the processing conversion to current signal, the discrete Fourier transform of employing based on sliding window iteration thought, realization detects system first-harmonic and harmonic wave, calculates the various parameters such as phase relation, the effective value between electric current and voltage and peak value between the electric current and voltage in power factor of electric network, frequency, active power, reactive power, computational scheme.Main control computer 11 sends the Voltage-output that control command is adjusted supply power voltage adjuster 5.
(3) motor 8 work band dynamic load 9 work.
(4) second A.C. contactors 10 complete the connecting and disconnecting of the circuit that control inputs voltage signal and supply power voltage are adjusted 5 output voltages.When supply power voltage adjuster 5 breaks down or overhauls, the first A.C. contactor 4 is connected electrical network three-phase voltage input 1 automatically, and assurance equipment runs well.
beneficial effect of the present invention:an electrical machine energy-saving device, this device can effectively improve the not match condition of motor real output and bearing power, thereby reduces the loss due to line loss and power consumption equipment, improves power quality.Can realize copper loss and Line Loss of Distribution Network System and decline 5%～30%; Distribution transformer iron loss declines 5%～15%; Whole power savings 5%～15%.
Claims (1)
1. a three phase electric machine power supply energy-saving device, it is characterized in that, by the input of electrical network three-phase voltage (1), the first cut-in without ball switch (2), the second cut-in without ball switch (3), the first A.C. contactor (4), supply power voltage adjuster (5), current sensor (6), the 3rd cut-in without ball switch (7), load (8), the second A.C. contactor (9), main control computer (10), formed; Described electrical network three-phase voltage input (1) is connected with the first cut-in without ball switch (2) by cable; The first cut-in without ball switch (2) is connected with the second cut-in without ball switch (3) by cable; The second cut-in without ball switch (3) is connected with the first A.C. contactor (4) by cable; The first A.C. contactor (4) is connected with supply power voltage adjuster (5) by cable; Supply power voltage adjuster (5) is connected with current sensor (6) by cable; Current sensor (6) is connected with the 3rd cut-in without ball switch (7) by cable; The 3rd cut-in without ball switch (7) is connected with load (8) by cable; Described the second A.C. contactor (9) by cable be connected with the first cut-in without ball switch (2), the second cut-in without ball switch (3), main control computer (10), the 3rd cut-in without ball switch (7), load (8) be connected; Described main control computer (10) by cable be connected with the first cut-in without ball switch (2), the second cut-in without ball switch (3), the first A.C. contactor (4), supply power voltage adjuster (5), current sensor (6), the 3rd cut-in without ball switch (7), load (8) is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310154482.1A CN104124693B (en) | 2013-04-28 | 2013-04-28 | A kind of three phase electric machine power supply energy-saving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310154482.1A CN104124693B (en) | 2013-04-28 | 2013-04-28 | A kind of three phase electric machine power supply energy-saving device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104124693A true CN104124693A (en) | 2014-10-29 |
| CN104124693B CN104124693B (en) | 2016-05-11 |
Family
ID=51770009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310154482.1A Expired - Fee Related CN104124693B (en) | 2013-04-28 | 2013-04-28 | A kind of three phase electric machine power supply energy-saving device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104124693B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101609990A (en) * | 2009-07-22 | 2009-12-23 | 李文斌 | Intelligent three-phase electricity-saving protection controller |
| CN101867344A (en) * | 2010-05-12 | 2010-10-20 | 松原市明悟节能设备有限公司 | Ceaseless intelligent power saving device |
| CN201674271U (en) * | 2010-03-16 | 2010-12-15 | 杭州金兰达科技有限公司 | Special electricity saving device for injection molding oil pump motor |
| CN201694723U (en) * | 2010-05-22 | 2011-01-05 | 徐建康 | Electricity economizer for intelligent handrail elevator |
| CN101964528A (en) * | 2010-08-23 | 2011-02-02 | 上海迈客罗机电科技有限公司 | Intelligent power-saving device |
| CN202737792U (en) * | 2012-08-15 | 2013-02-13 | 黑龙江庆东油田节能设备股份有限公司 | Automatic converting circuit for intelligent power-saving cabinet |
| CN202732416U (en) * | 2012-08-15 | 2013-02-13 | 黑龙江庆东油田节能设备股份有限公司 | Intelligent energy saving cabinet for draught fan |
-
2013
- 2013-04-28 CN CN201310154482.1A patent/CN104124693B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101609990A (en) * | 2009-07-22 | 2009-12-23 | 李文斌 | Intelligent three-phase electricity-saving protection controller |
| CN201674271U (en) * | 2010-03-16 | 2010-12-15 | 杭州金兰达科技有限公司 | Special electricity saving device for injection molding oil pump motor |
| CN101867344A (en) * | 2010-05-12 | 2010-10-20 | 松原市明悟节能设备有限公司 | Ceaseless intelligent power saving device |
| CN201694723U (en) * | 2010-05-22 | 2011-01-05 | 徐建康 | Electricity economizer for intelligent handrail elevator |
| CN101964528A (en) * | 2010-08-23 | 2011-02-02 | 上海迈客罗机电科技有限公司 | Intelligent power-saving device |
| CN202737792U (en) * | 2012-08-15 | 2013-02-13 | 黑龙江庆东油田节能设备股份有限公司 | Automatic converting circuit for intelligent power-saving cabinet |
| CN202732416U (en) * | 2012-08-15 | 2013-02-13 | 黑龙江庆东油田节能设备股份有限公司 | Intelligent energy saving cabinet for draught fan |
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| Publication number | Publication date |
|---|---|
| CN104124693B (en) | 2016-05-11 |
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160511 Termination date: 20180428 |