WO2009038336A3 - Apparatus for improving power quality - Google Patents
Apparatus for improving power quality Download PDFInfo
- Publication number
- WO2009038336A3 WO2009038336A3 PCT/KR2008/005483 KR2008005483W WO2009038336A3 WO 2009038336 A3 WO2009038336 A3 WO 2009038336A3 KR 2008005483 W KR2008005483 W KR 2008005483W WO 2009038336 A3 WO2009038336 A3 WO 2009038336A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- load
- phase
- power
- power quality
- related art
- Prior art date
Links
Classifications
-
- 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
- H02J3/01—Arrangements for reducing harmonics or ripples
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
- H01F27/38—Auxiliary core members; Auxiliary coils or windings
- H01F27/385—Auxiliary core members; Auxiliary coils or windings for reducing harmonics
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F37/00—Fixed inductances not covered by group H01F17/00
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F30/00—Fixed transformers not covered by group H01F19/00
- H01F30/02—Auto-transformers
-
- 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
- Y02E40/40—Arrangements for reducing harmonics
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
Disclosed is a power quality improving apparatus of a three-phase (R, S, and T phase) four- wire power distribution system. The power quality improving apparatus includes: a load; a power supply device that supplies three-phase power to the load; and an autotransformer that is connected in series between the load and the power supply device in order to reduce harmonics that flow through a neutral line of the three-phase four- wire power distribution system. In the power quality improving apparatus according to the present invention, different from the related art in which harmonic reducing devices need to be individually installed in a plurality of load ends, even though only one harmonic reducing device is installed between a receiving end and a distributing end, it is possible to obtain a harmonic reduction effect that is similar to that in the related art. Therefore, installation costs can be reduced. Since the harmonic reducing device is installed between the receiving end and the distributing end that have a relatively wider space than the load end, the harmonic reducing device can be easily installed in a building, as compared with the related art.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020097020979A KR101173632B1 (en) | 2008-09-17 | 2009-09-16 | Apparatus for improving power quality and power supply system |
PCT/KR2009/005269 WO2010032957A2 (en) | 2008-09-17 | 2009-09-16 | Power quality improvement device and power supply system |
CN2009801315082A CN102124530A (en) | 2008-09-17 | 2009-09-16 | Power quality improvement device and power supply system |
US13/060,056 US20110148556A1 (en) | 2008-09-17 | 2009-09-16 | Power quality improvement device and power supply system |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2007-0094462 | 2007-09-18 | ||
KR20070094462 | 2007-09-18 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2009038336A2 WO2009038336A2 (en) | 2009-03-26 |
WO2009038336A3 true WO2009038336A3 (en) | 2009-05-07 |
Family
ID=40468591
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/KR2008/005483 WO2009038336A2 (en) | 2007-09-18 | 2008-09-17 | Apparatus for improving power quality |
Country Status (1)
Country | Link |
---|---|
WO (1) | WO2009038336A2 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2480708B (en) * | 2010-09-01 | 2013-07-10 | Emsc Uk Ltd | Improved apparatus & method in relation to voltage optimization |
CN102611112B (en) * | 2012-04-05 | 2014-03-26 | 刘明日 | Management system for optimizing and improving power quality of utility power grid |
US10049811B2 (en) * | 2015-03-20 | 2018-08-14 | The Boeing Company | Multi-phase autotransformer |
CN107134358A (en) | 2016-02-26 | 2017-09-05 | 艾默生网络能源有限公司 | A kind of inductance winding method and device |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11273975A (en) * | 1998-03-19 | 1999-10-08 | Matsushita Electric Ind Co Ltd | Common mode choke coil |
KR100493987B1 (en) * | 2004-09-21 | 2005-06-08 | 전력품질기술주식회사 | Advanced zero sequence harmonic filter |
-
2008
- 2008-09-17 WO PCT/KR2008/005483 patent/WO2009038336A2/en active Application Filing
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11273975A (en) * | 1998-03-19 | 1999-10-08 | Matsushita Electric Ind Co Ltd | Common mode choke coil |
KR100493987B1 (en) * | 2004-09-21 | 2005-06-08 | 전력품질기술주식회사 | Advanced zero sequence harmonic filter |
Non-Patent Citations (1)
Title |
---|
OH, J.H. ET AL.: "A NOVEL CONTROL METHOD OF COMBINED SYSTEM CONSISTS OF SERIES ACTIVE POWER FILTER AND PARALLEL PASSIVE POWER FILTER TO COMPENSATE CURRENT HARMONICS AND UNBALANCED SOURCE VOLTAGES", JKIEE, vol. 50B, no. 12, December 2001 (2001-12-01), pages 615 - 623 * |
Also Published As
Publication number | Publication date |
---|---|
WO2009038336A2 (en) | 2009-03-26 |
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