BRPI1105476A8 - processo de sinterização por superfície ativada para a densificação de corpos compósitos cerâmicos e metálicos em baixas temperaturas - Google Patents

processo de sinterização por superfície ativada para a densificação de corpos compósitos cerâmicos e metálicos em baixas temperaturas Download PDF

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Publication number
BRPI1105476A8
BRPI1105476A8 BRPI1105476A BRPI1105476A BRPI1105476A8 BR PI1105476 A8 BRPI1105476 A8 BR PI1105476A8 BR PI1105476 A BRPI1105476 A BR PI1105476A BR PI1105476 A BRPI1105476 A BR PI1105476A BR PI1105476 A8 BRPI1105476 A8 BR PI1105476A8
Authority
BR
Brazil
Prior art keywords
ceramic
sintering
densification
additives
lower temperatures
Prior art date
Application number
BRPI1105476A
Other languages
English (en)
Inventor
Regina Homem De Mello Castanho Sonia
Augusto Guisard Restivo Thomaz
Original Assignee
Comissao Nac Energia Nuclear
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 Comissao Nac Energia Nuclear filed Critical Comissao Nac Energia Nuclear
Publication of BRPI1105476A2 publication Critical patent/BRPI1105476A2/pt
Publication of BRPI1105476A8 publication Critical patent/BRPI1105476A8/pt
Publication of BRPI1105476B1 publication Critical patent/BRPI1105476B1/pt

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of DC power input into DC power output
    • H02M3/02—Conversion of DC power input into DC power output without intermediate conversion into AC
    • H02M3/04—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters
    • H02M3/10—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M3/145—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M3/155—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; 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
    • H02J3/001—Arrangements for handling faults or abnormalities, e.g. emergencies or contingencies
    • H02J3/0014—Arrangements for handling faults or abnormalities, e.g. emergencies or contingencies for preventing or reducing power oscillations in networks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
    • F03D80/80—Arrangement of components within nacelles or towers
    • F03D80/82—Arrangement of components within nacelles or towers of electrical components
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/32—Means for protecting converters other than automatic disconnection
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P3/00—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters
    • H02P3/06—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter
    • H02P3/18—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter for stopping or slowing an AC motor
    • H02P3/22—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter for stopping or slowing an AC motor by short-circuit or resistive braking
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
    • H02P9/006—Means for protecting the generator by using control
    • 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
    • Y02E10/72—Wind turbines with rotation axis in wind direction
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Eletrric Generators (AREA)
  • Powder Metallurgy (AREA)

Abstract

processo de sinterização por superfície ativada para a densificação de corpos compósitos cerâmicos e metálicos em baixas temperaturas. a invenção descreve uma nova técnica de engenharia de materiais que promove a sinterização de pós conformados cerâmicos e compósitos cerâmica-metal (cermets) e cerâmica-cerâmica em menores temperaturas que as usuais. o processo pode ser empregado em uma infinidade de materiais, entre os quais aqueles contendo cerâmica como alumina, zircônia, titânia, urânia e óxidos mistos como titanatos, zirconatos e outros. diversos modos de operação são incluídos e exemplificados, cujas bases teóricas e práticas repousam no recobrimento das partículas originais da cerâmica de interesse com aditivos metálicos ou cerâmicos, segundo morfologias projetadas, levando ao bloqueio da difusão superficial nessas partículas. o processo assim efetuado preserva a superfície específica durante a fase de aquecimento da sinterização, promovendo a densificação em menores temperaturas. os aditivos são retirados posteriormente, no decorrer do aquecimento, expondo as superfícies cerâmicas originais preservadas, com alta sinterabilidade, capazes de ativar a densificação em menores temperaturas, no intervalo de 600<198>c a 1300<198>c. o processo de sinterização por superfície ativada ssa utiliza atmosferas preferencialmente oxidantes, impostas à câmara de sinterização, bem como aditivos que formam fases líquidas protetoras durantes o processo. os processos de obtenção e as composições desses pós compósitos são integradas às técnicas de sinterização.
BRPI1105476-0A 2010-11-11 2011-11-11 Processo de sinterização por superfície ativada para a densificação de corpos compósitos cerâmicos e metálicos em baixas temperaturas BRPI1105476B1 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP10382294.6 2010-11-11
EP10382294.6A EP2453133B1 (en) 2010-11-11 2010-11-11 Power converter control method

Publications (3)

Publication Number Publication Date
BRPI1105476A2 BRPI1105476A2 (pt) 2015-07-07
BRPI1105476A8 true BRPI1105476A8 (pt) 2019-09-10
BRPI1105476B1 BRPI1105476B1 (pt) 2023-09-26

Family

ID=44834970

Family Applications (2)

Application Number Title Priority Date Filing Date
BRPI1105477-8A BRPI1105477B1 (pt) 2010-11-11 2011-11-11 Método de controle de um conversor de potência associado a um gerador
BRPI1105476-0A BRPI1105476B1 (pt) 2010-11-11 2011-11-11 Processo de sinterização por superfície ativada para a densificação de corpos compósitos cerâmicos e metálicos em baixas temperaturas

Family Applications Before (1)

Application Number Title Priority Date Filing Date
BRPI1105477-8A BRPI1105477B1 (pt) 2010-11-11 2011-11-11 Método de controle de um conversor de potência associado a um gerador

Country Status (7)

Country Link
US (1) US8953344B2 (pt)
EP (1) EP2453133B1 (pt)
KR (1) KR101803578B1 (pt)
CN (1) CN102545202B (pt)
BR (2) BRPI1105477B1 (pt)
DK (1) DK2453133T3 (pt)
ES (1) ES2654595T3 (pt)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2010352434B2 (en) * 2010-04-29 2014-12-11 Ingeteam Power Technology, S.A. System and method for control an electric generator
CN104836246B (zh) * 2015-05-14 2017-11-21 电子科技大学 一种基于管输流动介质压力驱动器的独立供电装置
CN107612047A (zh) * 2017-10-10 2018-01-19 东南大学 无刷双馈发电机的功率模型预测控制系统及其控制方法
JP2023005565A (ja) * 2021-06-29 2023-01-18 セイコーエプソン株式会社 ロボット用モーター駆動回路およびロボットシステム

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3348944B2 (ja) 1993-12-27 2002-11-20 株式会社東芝 巻線形誘導機の制御装置
US9193268B2 (en) * 2001-03-27 2015-11-24 General Electric Company Hybrid energy power management system and method
CN100356683C (zh) 2002-01-29 2007-12-19 威斯塔斯风力系统公开有限公司 用于风力装置中的电路结构
US7015595B2 (en) 2002-02-11 2006-03-21 Vestas Wind Systems A/S Variable speed wind turbine having a passive grid side rectifier with scalar power control and dependent pitch control
EP1561275B1 (de) 2002-09-24 2008-07-23 IDS Holding AG Generatorsystem mit direkt netzgekoppeltem generator und verfahren zur beherrschung von netzstörungen
US8025115B2 (en) * 2003-06-02 2011-09-27 General Electric Company Hybrid vehicle power control systems and methods
EP1499009B1 (en) 2003-07-15 2007-10-31 Gamesa Innovation & Technology, S.L. Unipersonal Control and protection of a doubly-fed induction generator system
DE602004027668D1 (de) 2004-03-12 2010-07-22 Gen Electric Verfahren zum betrieb eines frequenzumsetzers eines generators und windenergieturbine mit einem gemäss dem verfahren betriebenen generator
JP2005269843A (ja) * 2004-03-22 2005-09-29 Mitsubishi Electric Engineering Co Ltd 系統連系装置
JP2008526179A (ja) * 2004-12-28 2008-07-17 ヴェスタス，ウィンド，システムズ エー／エス 電気事業配電網に接続された風力タービンの制御方法
JP4992225B2 (ja) * 2005-11-04 2012-08-08 株式会社富士通ゼネラル 電源装置
US7586216B2 (en) * 2006-06-02 2009-09-08 General Electric Company Redundant electrical brake and protection system for electric generators
WO2008089571A1 (en) * 2007-01-24 2008-07-31 Railpower Technologies Corp. Multi-power source locomotive control
ES2730073T3 (es) 2007-03-30 2019-11-08 Nordex Energy Spain S A Regulador de tensión de CC
GB2449119B (en) * 2007-05-11 2012-02-29 Converteam Technology Ltd Power converters
US7652858B2 (en) * 2007-06-06 2010-01-26 Gm Global Technology Operations, Inc. Protection for permanent magnet motor control circuits
US8198742B2 (en) * 2007-12-28 2012-06-12 Vestas Wind Systems A/S Variable speed wind turbine with a doubly-fed induction generator and rotor and grid inverters that use scalar controls
US8120932B2 (en) * 2008-07-01 2012-02-21 American Superconductor Corporation Low voltage ride through
EP2338224B1 (en) * 2008-10-20 2019-10-02 Woodward Kempen GmbH Protection system of a doubly-fed induction machine
US7804184B2 (en) * 2009-01-23 2010-09-28 General Electric Company System and method for control of a grid connected power generating system

Also Published As

Publication number Publication date
DK2453133T3 (da) 2017-11-20
BRPI1105476A2 (pt) 2015-07-07
EP2453133B1 (en) 2017-10-11
US8953344B2 (en) 2015-02-10
KR20120050917A (ko) 2012-05-21
KR101803578B1 (ko) 2017-11-30
BRPI1105477A2 (pt) 2015-07-07
BRPI1105476B1 (pt) 2023-09-26
BRPI1105477B1 (pt) 2020-06-02
EP2453133A1 (en) 2012-05-16
US20120119722A1 (en) 2012-05-17
ES2654595T3 (es) 2018-02-14
CN102545202B (zh) 2016-02-03
CN102545202A (zh) 2012-07-04

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B12B Appeal against refusal [chapter 12.2 patent gazette]
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