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WO2018095852A1 - Éolienne et unité inductive à 3 phases - Google Patents

Éolienne et unité inductive à 3 phases Download PDF

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Publication number
WO2018095852A1
WO2018095852A1 PCT/EP2017/079749 EP2017079749W WO2018095852A1 WO 2018095852 A1 WO2018095852 A1 WO 2018095852A1 EP 2017079749 W EP2017079749 W EP 2017079749W WO 2018095852 A1 WO2018095852 A1 WO 2018095852A1
Authority
WO
WIPO (PCT)
Prior art keywords
legs
unit
phase
coupled
magnetic
Prior art date
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.)
Ceased
Application number
PCT/EP2017/079749
Other languages
German (de)
English (en)
Inventor
Juri WILHELM
Harald Lindhorst
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wobben Properties GmbH
Original Assignee
Wobben Properties GmbH
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
Application filed by Wobben Properties GmbH filed Critical Wobben Properties GmbH
Publication of WO2018095852A1 publication Critical patent/WO2018095852A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • H01F3/12—Magnetic shunt paths
    • 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
    • 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
    • H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • H02J3/381—Dispersed generators
    • H02J2101/28—
    • 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
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/76—Power conversion electric or electronic aspects

Definitions

  • Electromagnetic three-phase choke coils also referred to simply as a choke, which are used to confine current particles in electrical leads, to buffer energy, to adjust impedance, and / or to filter, are well known.
  • Such chokes can be used at the output of an inverter to form 1.2 / modulated current sinusoidal as possible before it is fed into an electrical supply network.
  • the choke is thus arranged between the inverter and the electrical supply network, in which the energy is to be fed.
  • the chokes between the inverter and the supply network are provided.
  • a reactor is typically used for each phase or a 3-phase reactor is used.
  • the three droops of a three-phase system can be combined into a three-phase choke.
  • a composite of stacked sheets magnetic core can be provided, which has approximately the appearance of eight of a digital display.
  • three magnetically interconnected legs are provided, each receiving a winding of a phase.
  • a magnetic field which results from a current of a winding in the magnetic leg of this winding, runs in part through the other two magnetic legs of the other two windings.
  • the magnetic fields of all three windings and thus all three phases are superimposed.
  • Such 8-shaped magnetic cores typically have a very high magnetic permeability, so that the electrical properties of the throttles are essentially determined by the windings.
  • a disadvantage of such chokes is that the throttle is not completely symmetrical, because two coils are arranged on a respective outer magnetic leg, whereas one of the coils in a magnetic leg is disposed between the two outer legs.
  • the magnetic fields of the windings namely in particular between the two outer windings on the one hand and the winding arranged centrally in between, on the other hand can differ.
  • There may be any stray fields and effective for the middle winding magnetic resistance may be slightly lower than the respective effective for the two outer windings magnetic resistance.
  • German Patent and Trademark Office has researched the following documents: DE 10 2013 208 911 A1, DE 1 056 731 A1 and US 2006/0250207 A1. It is the object of the invention to provide a wind turbine and a three-phase choke unit, which avoid the above-mentioned disadvantages.
  • the coupling unit is arranged centrally along the length of the five legs.
  • a first yoke each have a primary winding is provided around one of the first, second and third legs.
  • three further primary windings are provided around the first, second and third legs, so that a two-phase system is obtained.
  • Fig. 1 shows a schematic representation of a wind turbine according to the invention
  • FIGS. 2A to C show various views of a throttle unit according to a first embodiment of the invention
  • 3A and B each show a view of a throttle unit according to a second embodiment of the invention
  • Fig. 5 shows a schematic representation of the inverter and a throttle unit according to a fourth embodiment.
  • the fourth and fifth legs may have a winding, e.g. To lead unbalanced magnetic components evenly between the fourth and / or fifth legs, so that it can come to a uniform heating within the core. Further, the windings on the fourth and fifth legs may serve for symmetry or filtering.
  • the throttle unit according to the invention thus preferably has a ferromagnetic core with the five legs 210-250, the first and second yokes 260, 270 and the magnetic coupling unit 280.
  • the two yokes 260, 270 are arranged substantially orthogonal to the five legs.
  • the ferromagnetic core has a central axis which extends through the second leg.
  • the five legs 210-250 of the ferromagnetic core each have central axes which extend in a plane parallel to each other.
  • the coupling which is achieved by the coupling unit 280, can be adjusted, for example, by varying the air gap 281.
  • the throttle unit according to the second exemplary embodiment has four or five legs 210-250, wherein the first three legs 210-230 are surrounded by the fourth and fifth legs 240, 250.
  • the throttle unit 200 further includes first and second yokes 260, 270 coupled to first ends of the first three legs.
  • the second yoke 270 is coupled to second ends of the first, second and third legs.
  • the first and second yokes 260, 270 did not extend over the entire width or length of the throttle unit.
  • the legs can be realized as stamped sheets or as beams.
  • the fourth and fifth legs according to the second embodiment may be configured as wound sheets.
  • the fourth and fifth legs 240, 250 according to the third embodiment are attached to the sides of the first and second yokes 260, 270.
  • a magnetic coupling can be achieved. In particular, in this way a larger magnetically effective cross section can be achieved.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Wind Motors (AREA)
  • Control Of Eletrric Generators (AREA)

Abstract

La présente invention concerne une éolienne (100) comprenant au moins un onduleur (130) et au moins une unité inductive à 3 phases (200) couplée entre l'onduleur (300) et une sortie (500) de l'éolienne (100). L'unité inductive à 3 phases (200) comporte quatre ou cinq branches (210-250) pourvue chacune de première et seconde extrémités, de première et seconde culasses (260, 270), et d'une unité de couplage magnétique (280). L'unité de couplage magnétique (280) est couplée à l'ensemble des quatre ou cinq branches (210-250), sert de dérivation magnétique et est disposée entre les première et seconde extrémités des quatre ou cinq branches (210-250). Un entrefer (281) est présent entre l'unité de couplage magnétique (280) et chacune des quatre ou cinq branches (210-250). Les première, deuxième et troisième branches (210-230) comportent chacune une phase de premier et second enroulements primaires (L11, L21, L31 ; L12, L22, L33).
PCT/EP2017/079749 2016-11-22 2017-11-20 Éolienne et unité inductive à 3 phases Ceased WO2018095852A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016122435.9A DE102016122435A1 (de) 2016-11-22 2016-11-22 Windenergieanlage und 3-Phasen-Drosseleinheit
DE102016122435.9 2016-11-22

Publications (1)

Publication Number Publication Date
WO2018095852A1 true WO2018095852A1 (fr) 2018-05-31

Family

ID=60450641

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2017/079749 Ceased WO2018095852A1 (fr) 2016-11-22 2017-11-20 Éolienne et unité inductive à 3 phases

Country Status (2)

Country Link
DE (1) DE102016122435A1 (fr)
WO (1) WO2018095852A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019106472A1 (de) * 2019-03-14 2020-09-17 Sma Solar Technology Ag Wechselrichter mit mehreren DC/AC-Wandlern und einem gemeinsamen Sinusfilter und Energieerzeugungsanlage mit einem derartigen Wechselrichter
CN111613974B (zh) * 2020-05-19 2024-04-26 中国电力工程顾问集团西南电力设计院有限公司 一种优化布置的交流滤波器场布置结构
EP4571802A1 (fr) 2023-12-11 2025-06-18 Wobben Properties GmbH Unité d'étranglement, éolienne et utilisation d'une unité d'étranglement comprenant une éolienne

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1056731B (de) 1957-09-18 1959-05-06 Siemens Ag Vorrichtung zur Verminderung der durch Streufelder hervorgerufenen Verluste in Transformatoren und Drosselspulen vermittels Streukoerper
DE10035634A1 (de) * 2000-07-21 2002-02-07 Siemens Ag Supraleitungseinrichtung mit induktiver Strombegrenzereinheit unter Verwendung von Hoch-Tc-Supraleitermaterial
US20060250207A1 (en) 2005-05-03 2006-11-09 Mte Corporation Multiple three-phase inductor with a common core
EP2560174A1 (fr) * 2010-04-14 2013-02-20 Alexander Mikhailovich Bryantsev Réacteur électrique triphasé à aimantation
DE102013208911A1 (de) 2013-05-14 2014-11-20 Schmidbauer Transformatoren und Gerätebau GmbH Mehrphasige Drossel mit integriertem Störungsunterdrückungstransformator
US20150123479A1 (en) * 2012-08-28 2015-05-07 Hitachi, Ltd. Power conversion apparatus

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1056731B (de) 1957-09-18 1959-05-06 Siemens Ag Vorrichtung zur Verminderung der durch Streufelder hervorgerufenen Verluste in Transformatoren und Drosselspulen vermittels Streukoerper
DE10035634A1 (de) * 2000-07-21 2002-02-07 Siemens Ag Supraleitungseinrichtung mit induktiver Strombegrenzereinheit unter Verwendung von Hoch-Tc-Supraleitermaterial
US20060250207A1 (en) 2005-05-03 2006-11-09 Mte Corporation Multiple three-phase inductor with a common core
EP2560174A1 (fr) * 2010-04-14 2013-02-20 Alexander Mikhailovich Bryantsev Réacteur électrique triphasé à aimantation
US20150123479A1 (en) * 2012-08-28 2015-05-07 Hitachi, Ltd. Power conversion apparatus
DE102013208911A1 (de) 2013-05-14 2014-11-20 Schmidbauer Transformatoren und Gerätebau GmbH Mehrphasige Drossel mit integriertem Störungsunterdrückungstransformator

Also Published As

Publication number Publication date
DE102016122435A1 (de) 2018-05-24

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