WO1997045933A3 - A method and a device for reducing third harmonic phenomena in a rotating electric alternating current machine - Google Patents

A method and a device for reducing third harmonic phenomena in a rotating electric alternating current machine Download PDF

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Publication number
WO1997045933A3
WO1997045933A3 PCT/SE1997/000908 SE9700908W WO9745933A3 WO 1997045933 A3 WO1997045933 A3 WO 1997045933A3 SE 9700908 W SE9700908 W SE 9700908W WO 9745933 A3 WO9745933 A3 WO 9745933A3
Authority
WO
WIPO (PCT)
Prior art keywords
reducing
alternating current
filter
rotating electric
current machine
Prior art date
Application number
PCT/SE1997/000908
Other languages
French (fr)
Other versions
WO1997045933A2 (en
Inventor
Mats Leijon
Bertil Berggren
Lars Gertmar
Jan-Anders Nygen
Original Assignee
Asea Brown Boveri
Mats Leijon
Bertil Berggren
Lars Gertmar
Nygen Jan Anders
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from SE9602079A external-priority patent/SE9602079D0/en
Priority claimed from SE9700347A external-priority patent/SE510631C2/en
Priority claimed from SE9700335A external-priority patent/SE508556C2/en
Application filed by Asea Brown Boveri, Mats Leijon, Bertil Berggren, Lars Gertmar, Nygen Jan Anders filed Critical Asea Brown Boveri
Priority to AU30533/97A priority Critical patent/AU3053397A/en
Priority to AT97925376T priority patent/ATE247337T1/en
Priority to EP97925376A priority patent/EP0901706B1/en
Priority to DE69724118T priority patent/DE69724118D1/en
Publication of WO1997045933A2 publication Critical patent/WO1997045933A2/en
Publication of WO1997045933A3 publication Critical patent/WO1997045933A3/en

Links

Classifications

    • 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
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/12—Impregnating, heating or drying of windings, stators, rotors or machines
    • 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
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/288—Shielding
    • 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
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/32—Insulating of coils, windings, or parts thereof
    • H01F27/323—Insulation between winding turns, between winding layers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F29/00—Variable transformers or inductances not covered by group H01F21/00
    • H01F29/14—Variable transformers or inductances not covered by group H01F21/00 with variable magnetic bias
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F3/00—Cores, Yokes, or armatures
    • H01F3/10—Composite arrangements of magnetic circuits
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F3/00—Cores, Yokes, or armatures
    • H01F3/10—Composite arrangements of magnetic circuits
    • H01F3/14—Constrictions; Gaps, e.g. air-gaps
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/02—Details
    • H02H3/025—Disconnection after limiting, e.g. when limiting is not sufficient or for facilitating disconnection
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/40—Structural association with grounding devices
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • H02K3/12—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors arranged in slots
    • H02K3/14—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors arranged in slots with transposed conductors, e.g. twisted conductors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • H02K3/28—Layout of windings or of connections between windings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/32—Windings characterised by the shape, form or construction of the insulation
    • H02K3/40—Windings characterised by the shape, form or construction of the insulation for high voltage, e.g. affording protection against corona discharges
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/46—Fastening of windings on the stator or rotor structure
    • H02K3/48—Fastening of windings on the stator or rotor structure in slots
    • 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
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/32—Insulating of coils, windings, or parts thereof
    • H01F2027/329—Insulation with semiconducting layer, e.g. to reduce corona effect
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2203/00—Specific aspects not provided for in the other groups of this subclass relating to the windings
    • H02K2203/15—Machines characterised by cable windings, e.g. high-voltage cables, ribbon cables

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Manufacturing & Machinery (AREA)
  • Supply And Distribution Of Alternating Current (AREA)
  • Control Of Multiple Motors (AREA)
  • Control Of Eletrric Generators (AREA)
  • Control Of Ac Motors In General (AREA)

Abstract

In a method for reducing the influence of third harmonic voltages upon direct connection of alternating current machines (1) to a three-phase power network (5), wherein at least one winding of the machine is Y-connected and the neutral point (2) of the winding is available, a suppression filter (14) is connected between the neutral point (2) and the ground point (4) of the power network. The characteristic of the filter alters in the event of risk of the filter getting into third-harmonic resonance with the network and the machine. In such a device, altering means (20, 21) are provided to alter the characteristic of the filter (14).
PCT/SE1997/000908 1996-05-29 1997-05-27 A method and a device for reducing third harmonic phenomena in a rotating electric alternating current machine WO1997045933A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AU30533/97A AU3053397A (en) 1996-05-29 1997-05-27 A method and a device for reducing third harmonic phenomena in a rotating electric alternating current machine
AT97925376T ATE247337T1 (en) 1996-05-29 1997-05-27 METHOD AND APPARATUS FOR REDUCING THE EFFECTS OF THIRD DEGREE HARMONICS IN AN AC ROTATING MACHINE
EP97925376A EP0901706B1 (en) 1996-05-29 1997-05-27 A method and a device for reducing third harmonic phenomena in a rotating electric alternating current machine
DE69724118T DE69724118D1 (en) 1996-05-29 1997-05-27 METHOD AND DEVICE FOR REDUCING THE EFFECTS OF THIRD GRADES IN A ROTATING AC POWER MACHINE

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
SE9602079A SE9602079D0 (en) 1996-05-29 1996-05-29 Rotating electric machines with magnetic circuit for high voltage and a method for manufacturing the same
SE9602079-7 1996-05-29
SE9700347-9 1997-02-03
SE9700347A SE510631C2 (en) 1997-02-03 1997-02-03 Electric high voltage machine coupled to distribution or transmission network
SE9700335A SE508556C2 (en) 1997-02-03 1997-02-03 Power transformer and reactor with windings with conductors
SE9700335-4 1997-02-03

Publications (2)

Publication Number Publication Date
WO1997045933A2 WO1997045933A2 (en) 1997-12-04
WO1997045933A3 true WO1997045933A3 (en) 1998-01-22

Family

ID=27355825

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1997/000908 WO1997045933A2 (en) 1996-05-29 1997-05-27 A method and a device for reducing third harmonic phenomena in a rotating electric alternating current machine

Country Status (5)

Country Link
EP (1) EP0901706B1 (en)
AT (1) ATE247337T1 (en)
AU (1) AU3053397A (en)
DE (1) DE69724118D1 (en)
WO (1) WO1997045933A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0004885D0 (en) * 2000-03-01 2000-04-19 Alstom Improvements in and relating to filers and filter components

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2241832A (en) * 1940-05-07 1941-05-13 Hugo W Wahlquist Method and apparatus for reducing harmonics in power systems
US4308575A (en) * 1978-12-13 1981-12-29 Tokyo Shibaura Denki Kabushiki Kaisha Power source system
US4551780A (en) * 1979-01-10 1985-11-05 Bbc Brown, Boveri & Company, Limited Apparatus for reducing subsynchronous frequencies in a power supply
US5323330A (en) * 1991-11-04 1994-06-21 Asea Brown Boveri Ab Reduction of disturbances in a power network
EP0684679A1 (en) * 1994-05-26 1995-11-29 Abb Stromberg Kojeet Oy Method for reducing waveform distortion in an electrical utility system and circuit for an electrical utility system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2241832A (en) * 1940-05-07 1941-05-13 Hugo W Wahlquist Method and apparatus for reducing harmonics in power systems
US4308575A (en) * 1978-12-13 1981-12-29 Tokyo Shibaura Denki Kabushiki Kaisha Power source system
US4551780A (en) * 1979-01-10 1985-11-05 Bbc Brown, Boveri & Company, Limited Apparatus for reducing subsynchronous frequencies in a power supply
US5323330A (en) * 1991-11-04 1994-06-21 Asea Brown Boveri Ab Reduction of disturbances in a power network
EP0684679A1 (en) * 1994-05-26 1995-11-29 Abb Stromberg Kojeet Oy Method for reducing waveform distortion in an electrical utility system and circuit for an electrical utility system

Also Published As

Publication number Publication date
ATE247337T1 (en) 2003-08-15
AU3053397A (en) 1998-01-05
EP0901706A2 (en) 1999-03-17
EP0901706B1 (en) 2003-08-13
WO1997045933A2 (en) 1997-12-04
DE69724118D1 (en) 2003-09-18

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