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WIND GENERATOR SYSTEM

Foreign code F180009653
File No. 4342
Posted date Nov 21, 2018
Country WIPO
International application number 2014JP066637
International publication number WO 2015029562
Date of international filing Jun 24, 2014
Date of international publication Mar 5, 2015
Priority data
  • P2013-176088 (Aug 27, 2013) JP
Title WIND GENERATOR SYSTEM
Abstract A wind generator system (1) comprises: a windmill (10); an induction motor (20) coupled to the rotary shaft of the windmill (10); a power convertor (30) for supplying the induction motor (20) with an excitation current; a heat medium circulation mechanism (40) for circulating a heat medium which receives heat generated by the induction motor (20); a heat accumulator (50) for accumulating the heat of the heat medium; a thermal generator (60) for converting the heat of the heat medium accumulated in the heat accumulator (50) into electricity; and an armature control unit for controlling an excitation current in accordance with the power demand from a power system (100). The armature control unit performs either one or both of a power generation mode control for operating the induction motor (20) as a power generator, and a heat generation mode control for operating the induction motor (20) as a heat generator.
Outline of related art and contending technology BACKGROUND ART
In recent years, fuel cell power generation system using renewable energy and attention, as one example, the rotational energy of the wind turbine generator into electrical energy with the wind power generation system has been known. Most recently, the rotation energy of the wind turbine by utilizing the heat generated by induction heating (eddy current) is converted into thermal energy and heat generation at the receiver, the heat of the heat power generation system that converts wind energy into electrical energy has been proposed (for example JP-2011-102576 Publication (Patent Document 1) and Japanese Patent Laid-Open Patent Publication 2012-43728 (Patent Document 2) the reference).
Also, for example Japanese Patent Laid-Open Patent Publication 2003-120505 (Patent Document 3) and Japanese Patent Laid-Open Patent Publication 2004-63930 (Patent Document 4) is, in the power generation system using renewable energy, a technique for enhancing power generation efficiency, and a technique to make effective use of power has been proposed. Patent Document 3 is, in the wind turbine generator, wind turbine due to the loss of the generator shaft coupling utilizing waste heat to drive the turbine, the turbine to the generator shaft coupling can be recovered as electric power for power generation, a technique for enhancing the efficiency of the device has been proposed. On the other hand, in Patent Document 4, in the power generation system using natural energy, the power generator (solar power generation, wind power generation) generated in the surplus of the electric power converted to heat in a heat storage means and is charged into (water heater), thermal energy is effectively utilized as a power generation technology has been proposed.
Scope of claims (In Japanese)請求の範囲 [請求項1]
 風車と、
 前記風車の回転軸に連結される誘導回転機と、
 前記誘導回転機に励磁電流を供給する電力変換装置と、
 前記誘導回転機で発生した熱を受け取る熱媒体を流通させる熱媒体流通機構と、
 前記熱媒体流通機構に流通する前記熱媒体の熱を蓄える蓄熱器と、
 前記蓄熱器に蓄えられた前記熱媒体の熱を電気に変換する熱発電機と、
 電力系統の電力需要に応じて、前記励磁電流を制御する電機子制御部と、を備え、
 前記電機子制御部は、
 前記励磁電流として前記電力系統から無効電流を供給する制御により、前記誘導回転機を発電機として動作させる発電モード制御と、
 前記励磁電流として負荷トルクを生じるすべりとなるトルク電流を供給する制御により、前記誘導回転機を発熱機として動作させる発熱モード制御との一方または両方を行なう、風力発電システム。

[請求項2]
 前記電機子制御部は、前記発熱モード制御において、前記トルク電流を直流または交流に制御する、請求項1に記載の風力発電システム。

[請求項3]
 前記電機子制御部は、前記発熱モード制御において、前記トルク電流を定格トルクから停動トルクまでとなる周波数の交流に制御する、請求項1に記載の風力発電システム。

[請求項4]
 前記誘導回転機を収納する断熱容器を備え、
 前記熱媒体流通機構が、前記断熱容器内に前記熱媒体を流通させる、請求項1~請求項3のいずれか1項に記載の風力発電システム。

[請求項5]
 前記電力系統の電力需要に応じて、前記熱発電機の発電電力を制御する電力制御部を備える、請求項1~請求項4のいずれか1項に記載の風力発電システム。

  • Applicant
  • ※All designated countries except for US in the data before July 2012
  • SUMITOMO ELECTRIC INDUSTRIES, LTD.
  • KYOTO UNIVERSITY
  • Inventor
  • OKAZAKI, Toru
  • NAKAMURA, Taketsune
IPC(International Patent Classification)
Specified countries National States: AE AG AL AM AO AT AU AZ BA BB BG BH BN BR BW BY BZ CA CH CL CN CO CR CU CZ DE DK DM DO DZ EC EE EG ES FI GB GD GE GH GM GT HN HR HU ID IL IN IR IS KE KG KN KP KR KZ LA LC LK LR LS LT LU LY MA MD ME MG MK MN MW MX MY MZ NA NG NI NO NZ OM PA PE PG PH PL PT QA RO RS RU RW SA SC SD SE SG SK SL SM ST SV SY TH TJ TM TN TR TT TZ UA UG US UZ VC VN ZA ZM ZW
ARIPO: BW GH GM KE LR LS MW MZ NA RW SD SL SZ TZ UG ZM ZW
EAPO: AM AZ BY KG KZ RU TJ TM
EPO: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
OAPI: BF BJ CF CG CI CM GA GN GQ GW KM ML MR NE SN TD TG
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