CN102035462A - Three-phase fan frequency conversion power saver - Google Patents
Three-phase fan frequency conversion power saver Download PDFInfo
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- CN102035462A CN102035462A CN2010105192512A CN201010519251A CN102035462A CN 102035462 A CN102035462 A CN 102035462A CN 2010105192512 A CN2010105192512 A CN 2010105192512A CN 201010519251 A CN201010519251 A CN 201010519251A CN 102035462 A CN102035462 A CN 102035462A
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 19
- 239000003990 capacitor Substances 0.000 claims abstract description 7
- 230000005669 field effect Effects 0.000 claims description 2
- 230000010354 integration Effects 0.000 claims description 2
- 239000004065 semiconductor Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 4
- 238000001514 detection method Methods 0.000 abstract 1
- 230000005611 electricity Effects 0.000 description 14
- 238000004134 energy conservation Methods 0.000 description 5
- 238000005265 energy consumption Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 230000007423 decrease Effects 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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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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- Inverter Devices (AREA)
- Control Of Ac Motors In General (AREA)
- Control Of Positive-Displacement Air Blowers (AREA)
Abstract
The invention discloses a three-phase fan frequency conversion power saver belonging to the technical field of electromotor energy saving control. The three-phase fan frequency conversion power saver comprises a fan operation parameter detection circuit (10), a three-phase rectifying circuit (20), a charging circuit (30), a battery (40), a battery switch (50), a three-phase inverter (60), a capacitor (70), a control circuit (80) and a three-phase power contactor (90). When being applied for a fan with an alternating current electromotor, the three-phase fan frequency conversion power saver provided by the invention can simultaneously and respectively realize two energy-saving methods of speed-regulation energy saving and peak clipping and valley filling of a power grid; and generally, the invention can obtain the energy-saving effect of 20-90%. The three-phase fan frequency conversion power saver provided by the invention has simple structure, obvious energy saving effect and wide application prospect on the aspect of fan energy saving, and is intuitional in metering.
Description
Technical field
The present invention relates to three-phase fan frequency conversion electricity-saving appliance, belong to energy saving motor control technology field, be specifically related to a kind of variable speed energy saving and these two kinds of power control units that power-economizing method economizes on electricity of electrical network peak load shifting realized simultaneously.Be applicable on the blower fan that has three-phase alternating-current motor.
Background technology
Along with progress, the development of science and technology of society, the three-phase alternating-current motor blower fan has become a kind of being seen everywhere, the common universal electromechanical equipment that is used on a large scale.The power consumption of the three-phase alternating-current motor blower fan electric energy energy consumption in the whole nation has relatively occupied suitable ratio.
The positive growing tension of 21 century global energy, China is again energy resource consumption big country, energy-conservation economize on electricity is imperative.
Therefore, it is necessary blower fan being carried out power-saving Retrofit.
At present, a lot of occasions are arranged, the three-phase alternating-current motor blower fan does not adopt power-saving technology that it is carried out reducing energy consumption, or only just frequency converter has been installed simply its speed fixedly is reduced to certain value and does not carry out dynamic adjustments.
Summary of the invention
The objective of the invention is to overcome the shortcoming of above-mentioned waste of energy of the prior art, provide a kind of simple and practical, cost is lower, can fully automatic operation, the significant three-phase fan frequency conversion of power savings electricity-saving appliance.
In order to realize that the foregoing invention purpose adopts following technical scheme:
Three-phase fan frequency conversion electricity-saving appliance of the present invention comprises fan operation parameter detecting circuit (10), rectified three-phase circuit (20), charging circuit (30), battery (40), cell switch (50), three-phase inverter (60), capacitor (70), control circuit (80), three phase mains contactor (90).The external electrical network three phase mains inserts the input of three phase mains contactor (90), the output of three phase mains contactor (90) respectively with the input of rectified three-phase circuit (20), the input of charging circuit (30) connects, the output of rectified three-phase circuit (20) respectively with the input of cell switch (50), three-phase inverter (60) input is connected, the output of cell switch (50) respectively with the output of charging circuit (30), battery (40) is connected, the dc terminal of three-phase inverter (60) is connected with capacitor (70), control circuit (80) respectively with fan operation parameter detecting circuit (10), the control end of rectified three-phase circuit (20), the control end of charging circuit (30), the control end of cell switch (50), the control end of three-phase inverter (60), the control end of three phase mains contactor (90) is connected, the output of three-phase inverter (60) is connected with the blower fan alternating current motor, and fan operation parameter detecting circuit (10) is connected with transducer on being installed on blower fan.
Adopted the three-phase fan frequency conversion electricity-saving appliance of this invention, can realize simultaneously that the dynamic speed adjustment of blower fan is energy-conservation and the electrical network peak load shifting is carried out these two kinds of power-economizing methods of electric power storage energy storage to economize on electricity.When this battery saving arrangement is applied on the blower fan of not making similar power-saving Retrofit, generally can obtain 20%～90% power savings, electricity-saving appliance of the present invention does not influence the use of blower fan operate as normal simultaneously, simple installation, possess good economic benefit and social benefit, and simple and practical, and cost is lower, can fully automatic operation, power savings is remarkable.Be with a wide range of applications aspect energy-conservation at blower fan.
Description of drawings
Accompanying drawing is the operation principle block diagram of three-phase fan frequency conversion electricity-saving appliance of the present invention.
Embodiment
In order more to be expressly understood technology contents of the present invention, describe in detail especially exemplified by following examples.
Consult shown in the accompanying drawing, with the blower fan that is applied to 380V, a 50HZ, 3 phases, 15KW is reference, this three-phase fan frequency conversion electricity-saving appliance comprises fan operation parameter detecting circuit (10), rectified three-phase circuit (20), charging circuit (30), battery (40), cell switch (50), three-phase inverter (60), capacitor (70), control circuit (80), three phase mains contactor (90).The external electrical network three phase mains inserts the input of three phase mains contactor (90), the output of three phase mains contactor (90) respectively with the input of rectified three-phase circuit (20), the input of charging circuit (30) connects, the output of rectified three-phase circuit (20) respectively with the input of cell switch (50), three-phase inverter (60) input is connected, the output of cell switch (50) respectively with the output of charging circuit (30), battery (40) is connected, the dc terminal of three-phase inverter (60) is connected with capacitor (70), control circuit (80) respectively with fan operation parameter detecting circuit (10), the control end of rectified three-phase circuit (20), the control end of charging circuit (30), the control end of cell switch (50), the control end of three-phase inverter (60), the control end of three phase mains contactor (90) is connected, the output of three-phase inverter (60) is connected with the blower fan alternating current motor, and fan operation parameter detecting circuit (10) is connected with transducer on being installed on blower fan.
Simultaneously, the power device that is comprised in the three-phase inverter (60) in this three-phase fan frequency conversion electricity-saving appliance can be V-type groove metal-oxide-semiconductor field effect transistor (VMOS), igbt (IGBT), integral gate change transistor (IGCT), smart power switch device and drive circuit integration module (IPM) or intelligent power integrated circuit (SPIC).
The 380V50HZ power supply is linked into charging circuit (30) and rectified three-phase circuit (20) through three phase mains contactor (90), when electricity price electricity price at a low ebb at 22 (being generally in evening to point on daytimes 8), charging circuit (30) puts into operation, charge for battery (40), cell switch this moment (50) disconnects.Civil power becomes direct current by rectified three-phase circuit (20), through three-phase inverter (60) direct current is converted into the alternating current of frequency adjustable, and this alternating current is sent to blower fan, the different speed of the corresponding blower fan of different frequencies.Control circuit (80) receives the feedback signal of fan operation parameter detecting circuit (10) in real time, and through after the computing, to three-phase inverter (60), the corresponding frequency of three-phase inverter (60) output arrives blower motor with the output speed signal.Blower motor speed descends, and will cause fan energy consumption to decline to a great extent.
When electricity price is in peak when electricity (be generally daytime to point in evenings 22) at 8, charging circuit (30) automatic disconnection, carry out direct current supply for three-phase inverter (60) by battery (40) by cell switch (50), at this moment, rectified three-phase circuit (20) automatic disconnection, the direct current that battery (40) provides is converted into the alternating current of frequency adjustable through three-phase inverter (60) with direct current, and this alternating current is sent to blower fan, the different speed of the corresponding blower fan of different frequencies.Control circuit (80) receives the feedback signal of fan operation parameter detecting circuit (10) in real time, and through after the computing, to three-phase inverter (60), the corresponding frequency of three-phase inverter (60) output arrives blower motor with the output speed signal.Blower motor speed descends, and will cause fan energy consumption to decline to a great extent.
For the blower fan of this 380V, 50HZ, 3 phases, 15KW, motor speed can be regulated according to fan operation parameter detecting circuit (10), and energy consumption can significantly reduce.Because electric power low ebb electricity price is cheap more a lot of than peak electricity tariff, when being in electric power low ebb electricity price, three-phase fan frequency conversion electricity-saving appliance of the present invention can be to battery (40) charging accumulation of energy simultaneously; When being in the electric power peak electricity tariff, three-phase fan frequency conversion electricity-saving appliance of the present invention can discharge so that the peak electricity consumption has been avoided in the blower fan normal operation from battery (40), and the actual electricity charge wholesale of paying is reduced.
Adopted the three-phase fan frequency conversion electricity-saving appliance of this invention, can realize simultaneously that the dynamic speed adjustment of blower fan is energy-conservation and the electrical network peak load shifting is carried out these two kinds of power-economizing methods of electric power storage energy storage to economize on electricity.When this battery saving arrangement is applied on the blower fan of not making similar power-saving Retrofit, generally can obtain 20%～90% power savings, electricity-saving appliance of the present invention does not influence the use of blower fan operate as normal simultaneously, simple installation, possess good economic benefit and social benefit, and simple and practical, and cost is lower, can fully automatic operation, power savings is remarkable.Be with a wide range of applications aspect energy-conservation at blower fan.
In this specification, the present invention is described with reference to its certain embodiments.But, still can make various modifications and conversion obviously and not deviate from the spirit and scope of the present invention.Therefore, specification and accompanying drawing are regarded in an illustrative, rather than a restrictive.
Claims (2)
1. a three-phase fan frequency conversion electricity-saving appliance comprises fan operation parameter detecting circuit (10), rectified three-phase circuit (20), charging circuit (30), battery (40), cell switch (50), three-phase inverter (60), capacitor (70), control circuit (80), three phase mains contactor (90).The external electrical network three phase mains inserts the input of three phase mains contactor (90), the output of three phase mains contactor (90) respectively with the input of rectified three-phase circuit (20), the input of charging circuit (30) connects, the output of rectified three-phase circuit (20) respectively with the input of cell switch (50), three-phase inverter (60) input is connected, the output of cell switch (50) respectively with the output of charging circuit (30), battery (40) is connected, the dc terminal of three-phase inverter (60) is connected with capacitor (70), control circuit (80) respectively with fan operation parameter detecting circuit (10), the control end of rectified three-phase circuit (20), the control end of charging circuit (30), the control end of cell switch (50), the control end of three-phase inverter (60), the control end of three phase mains contactor (90) is connected, the output of three-phase inverter (60) is connected with the blower fan alternating current motor, and fan operation parameter detecting circuit (10) is connected with transducer on being installed on blower fan.
2. three-phase fan frequency conversion electricity-saving appliance according to claim 1 is characterized in that: the power device in the described three-phase inverter (60) is V-type groove metal-oxide-semiconductor field effect transistor (VMOS), igbt (IGBT), integral gate change transistor (IGCT), smart power switch device and drive circuit integration module (IPM) or intelligent power integrated circuit (SPIC).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105192512A CN102035462A (en) | 2010-10-25 | 2010-10-25 | Three-phase fan frequency conversion power saver |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105192512A CN102035462A (en) | 2010-10-25 | 2010-10-25 | Three-phase fan frequency conversion power saver |
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| Publication Number | Publication Date |
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| CN102035462A true CN102035462A (en) | 2011-04-27 |
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| CN2010105192512A Pending CN102035462A (en) | 2010-10-25 | 2010-10-25 | Three-phase fan frequency conversion power saver |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106712270A (en) * | 2015-07-28 | 2017-05-24 | 伊顿制造（格拉斯哥）有限合伙莫尔日分支机构 | Control method and control device of square wave uninterruptible power supply |
| CN107666175A (en) * | 2016-07-29 | 2018-02-06 | 伊顿制造（格拉斯哥）有限合伙莫尔日分支机构 | The control method and control device of square wave uninterrupted power source |
-
2010
- 2010-10-25 CN CN2010105192512A patent/CN102035462A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106712270A (en) * | 2015-07-28 | 2017-05-24 | 伊顿制造（格拉斯哥）有限合伙莫尔日分支机构 | Control method and control device of square wave uninterruptible power supply |
| CN107666175A (en) * | 2016-07-29 | 2018-02-06 | 伊顿制造（格拉斯哥）有限合伙莫尔日分支机构 | The control method and control device of square wave uninterrupted power source |
| CN107666175B (en) * | 2016-07-29 | 2023-05-09 | 伊顿制造（格拉斯哥）有限合伙莫尔日分支机构 | Control method and control device of square wave uninterrupted power supply |
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Application publication date: 20110427 |