CN101548454B - 多相功率变换器以及多相功率变换方法 - Google Patents
多相功率变换器以及多相功率变换方法 Download PDFInfo
- Publication number
- CN101548454B CN101548454B CN2007800384160A CN200780038416A CN101548454B CN 101548454 B CN101548454 B CN 101548454B CN 2007800384160 A CN2007800384160 A CN 2007800384160A CN 200780038416 A CN200780038416 A CN 200780038416A CN 101548454 B CN101548454 B CN 101548454B
- Authority
- CN
- China
- Prior art keywords
- reactor winding
- output
- reactor
- circuit
- converting unit
- 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.)
- Expired - Fee Related
Links
- 238000000034 method Methods 0.000 title description 17
- 238000004804 winding Methods 0.000 claims description 38
- 238000006243 chemical reaction Methods 0.000 claims description 33
- 230000016507 interphase Effects 0.000 claims description 33
- 230000005611 electricity Effects 0.000 claims description 6
- 238000012935 Averaging Methods 0.000 abstract 1
- 239000003990 capacitor Substances 0.000 description 12
- 230000006698 induction Effects 0.000 description 12
- 238000013461 design Methods 0.000 description 10
- 230000001276 controlling effect Effects 0.000 description 8
- 230000004048 modification Effects 0.000 description 6
- 238000012986 modification Methods 0.000 description 6
- 230000004044 response Effects 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 5
- 230000006837 decompression Effects 0.000 description 5
- 230000009977 dual effect Effects 0.000 description 5
- 230000006870 function Effects 0.000 description 3
- 230000010363 phase shift Effects 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- 241000592274 Polypodium vulgare Species 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 108010076504 Protein Sorting Signals Proteins 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 125000002619 bicyclic group Chemical group 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 230000004087 circulation Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000001839 systemic circulation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
- 238000012800 visualization Methods 0.000 description 1
Images
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
- H02M1/00—Details of apparatus for conversion
- H02M1/14—Arrangements for reducing ripples from dc input or output
-
- 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
- H02M3/156—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 with automatic control of output voltage or current, e.g. switching regulators
- H02M3/158—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 with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
- H02M3/1584—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 with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load with a plurality of power processing stages connected in parallel
-
- 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
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/493—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode the static converters being arranged for operation in parallel
-
- 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
- H02M1/0003—Details of control, feedback or regulation circuits
- H02M1/0009—Devices or circuits for detecting current in a converter
-
- 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
- H02M1/0043—Converters switched with a phase shift, i.e. interleaved
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
- Inverter Devices (AREA)
Abstract
Description
Claims (7)
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US84276206P | 2006-09-06 | 2006-09-06 | |
US60/842,762 | 2006-09-06 | ||
US11/850,103 US7692938B2 (en) | 2006-09-06 | 2007-09-05 | Multiphase power converters and multiphase power converting methods |
US11/850,103 | 2007-09-05 | ||
PCT/US2007/077701 WO2008030919A2 (en) | 2006-09-06 | 2007-09-06 | Multiphase power converters and multiphase power converting methods |
Publications (2)
Publication Number | Publication Date |
---|---|
CN101548454A CN101548454A (zh) | 2009-09-30 |
CN101548454B true CN101548454B (zh) | 2012-07-11 |
Family
ID=39158026
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2007800384160A Expired - Fee Related CN101548454B (zh) | 2006-09-06 | 2007-09-06 | 多相功率变换器以及多相功率变换方法 |
Country Status (5)
Country | Link |
---|---|
US (1) | US7692938B2 (zh) |
EP (1) | EP2064804B1 (zh) |
JP (2) | JP2010503376A (zh) |
CN (1) | CN101548454B (zh) |
WO (1) | WO2008030919A2 (zh) |
Families Citing this family (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7692938B2 (en) * | 2006-09-06 | 2010-04-06 | Northern Power Systems, Inc. | Multiphase power converters and multiphase power converting methods |
BE1017382A3 (nl) * | 2006-12-27 | 2008-07-01 | Atlas Copco Airpower Nv | Werkwijze voor het sturen van een belasting met een voornamelijk inductief karakter en een inrichting die zulke werkwijze toepast. |
US20100008112A1 (en) * | 2008-07-09 | 2010-01-14 | Feng Frank Z | Interphase transformer |
JP4888817B2 (ja) * | 2009-03-13 | 2012-02-29 | オムロン株式会社 | パワーコンディショナおよび太陽光発電システム |
JP4911733B2 (ja) * | 2009-03-13 | 2012-04-04 | オムロン株式会社 | 電力変換装置、パワーコンディショナ、および発電システム |
ES2411356T3 (es) * | 2009-05-07 | 2013-07-05 | Siemens Aktiengesellschaft | Método para adaptar una configuración de un dispositivo de conversión de tensión y una unidad de conversión de tensión para un dispositivo de conversión de tensión |
JP2012526511A (ja) | 2009-05-07 | 2012-10-25 | シーメンス アクチエンゲゼルシヤフト | 相間変成ユニットのための飽和制御ユニット、および、電圧変換装置用のpwm制御装置 |
CN102067431B (zh) * | 2009-05-07 | 2013-10-30 | 西门子公司 | 电源变换设备和电源装置 |
JP5071498B2 (ja) * | 2010-03-10 | 2012-11-14 | オムロン株式会社 | 電力変換装置およびパワーコンディショナ |
US20120075051A1 (en) | 2010-09-23 | 2012-03-29 | Northern Power Systems, Inc. | Magnetic Devices and Transformer Circuits Made Therewith |
US9013901B2 (en) | 2011-12-30 | 2015-04-21 | Abb Technology Ltd | Modular voltage source converter |
JP2013197988A (ja) * | 2012-03-21 | 2013-09-30 | Advantest Corp | 無線通信装置および無線通信システム |
FR2994763B1 (fr) * | 2012-08-23 | 2015-10-30 | Hispano Suiza Sa | Dispositif de puissance bobine comportant un enroulement d'un premier bobinage et un enroulement d'un deuxieme bobinage qui enveloppent une meme portion d'une jambe de noyau magnetique |
US9030174B2 (en) * | 2012-09-14 | 2015-05-12 | General Electric Company | Current balance control in converter for doubly fed induction generator wind turbine system |
US9787217B2 (en) | 2013-08-30 | 2017-10-10 | Huawei Technologies Co., Ltd. | Power conversion circuit and power conversion system |
CN104935197B (zh) * | 2014-03-19 | 2017-11-24 | 华为技术有限公司 | 一种多电平变换器及供电系统 |
US9450491B2 (en) | 2014-10-23 | 2016-09-20 | Qualcomm Incorporated | Circuits and methods providing three-level signals at a synchronous buck converter |
US9793804B2 (en) | 2014-10-23 | 2017-10-17 | Qualcomm Incorporated | Circuits and methods for controlling a three-level buck converter |
CN104518672B (zh) * | 2014-11-21 | 2017-06-06 | 深圳市航天新源科技有限公司 | 一种磁集成与零端口电流纹波的三端口变换器 |
ES2894798T3 (es) * | 2015-10-28 | 2022-02-15 | Ge Energy Power Conversion Technology Ltd | Sistema de conversión de potencia bidireccional para carga eléctrica monofásica y procedimiento de conversión de potencia correspondiente |
JP6292245B2 (ja) * | 2016-03-03 | 2018-03-14 | トヨタ自動車株式会社 | 多相昇圧コンバータの制御方法及び多相昇圧コンバータ |
JP7088032B2 (ja) * | 2019-01-08 | 2022-06-21 | トヨタ自動車株式会社 | 燃料電池車両及びその制御方法 |
US11522448B2 (en) | 2019-05-29 | 2022-12-06 | Alpha And Omega Semiconductor (Cayman) Limited | Autonomous current sharing for power stages |
US11569668B2 (en) * | 2020-07-14 | 2023-01-31 | Igrenenergi, Inc. | System and method for dynamic balancing power in a battery pack |
US11824451B2 (en) | 2021-08-13 | 2023-11-21 | Analog Devices, Inc. | Multi-phase buck-boost converter |
US20230106121A1 (en) * | 2021-09-29 | 2023-04-06 | Enure, Inc. | Polyphase ac to dc converter |
US20240190293A1 (en) * | 2022-12-07 | 2024-06-13 | GM Global Technology Operations LLC | Electric drive with dual-energy storage and variable inverter input |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1470098A (zh) * | 2000-08-18 | 2004-01-21 | ����Դ��ҵ��˾ | 采用组合变压器的多功率转换器系统 |
CN1609742A (zh) * | 2003-10-20 | 2005-04-27 | 英特赛尔美国股份有限公司 | 高抗扰度与任意相位计数的计时式级联电流型稳压器 |
Family Cites Families (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61236364A (ja) * | 1985-04-09 | 1986-10-21 | Fujitsu Ltd | Dc−dcコンバ−タにおける並列接続トランジスタの故障検出回路 |
US5019954A (en) * | 1989-06-23 | 1991-05-28 | Allied-Signal Inc. | AC/DC conversion with reduced supply waveform distortion |
JP2685586B2 (ja) | 1989-06-30 | 1997-12-03 | 株式会社日立製作所 | 多重インバータ装置 |
JP2800383B2 (ja) * | 1990-07-24 | 1998-09-21 | 富士電機株式会社 | 高周波インバータ |
JP3185257B2 (ja) | 1991-07-23 | 2001-07-09 | 株式会社明電舎 | 電力変換ユニットの並列運転装置 |
US5245525A (en) | 1991-10-24 | 1993-09-14 | Sundstrand Corporation | DC current control through an interphase transformer using differential current sensing |
WO1993023913A1 (en) * | 1992-05-11 | 1993-11-25 | Electric Power Research Institute | Optimized high power voltage sourced inverter system |
JP3385616B2 (ja) | 1994-03-02 | 2003-03-10 | 株式会社安川電機 | 多重結合した電力変換装置及びその制御方法 |
JPH09308254A (ja) * | 1996-05-09 | 1997-11-28 | Toshiba Corp | 補助電源装置 |
JPH09331682A (ja) | 1996-06-12 | 1997-12-22 | Meidensha Corp | 電力変換器 |
US6023154A (en) * | 1997-10-28 | 2000-02-08 | International Rectifier Corporation | Parallel and interwoven buck converter for high efficiency, low voltage power supply |
JP3148171B2 (ja) * | 1998-01-12 | 2001-03-19 | 株式会社日本プロテクター | スイッチングレギュレータ |
JP2000173794A (ja) * | 1998-12-07 | 2000-06-23 | Mitsubishi Electric Corp | 電源回路 |
US6084790A (en) * | 1999-01-07 | 2000-07-04 | Astec International Limited | Circuit to ensure equal current sharing and switching losses between parallel power devices |
EP1248354A1 (en) * | 2001-04-06 | 2002-10-09 | Intersil Corporation | Multi-phase converter with balanced currents |
US6850045B2 (en) * | 2003-04-29 | 2005-02-01 | Texas Instruments Incorporated | Multi-phase and multi-module power system with a current share bus |
JP4105606B2 (ja) * | 2003-08-08 | 2008-06-25 | Tdk株式会社 | スイッチング電源装置 |
US7872454B2 (en) * | 2003-08-21 | 2011-01-18 | Marvell World Trade Ltd. | Digital low dropout regulator |
JP2005176532A (ja) * | 2003-12-12 | 2005-06-30 | Hitachi Ltd | ディジタル式直流電源制御装置及び方法 |
US7466116B2 (en) | 2004-04-12 | 2008-12-16 | Renesas Technology America, Inc. | Current sensing circuit for a multi-phase DC-DC converter |
US7142140B2 (en) | 2004-07-27 | 2006-11-28 | Silicon Laboratories Inc. | Auto scanning ADC for DPWM |
US7315463B2 (en) | 2004-09-30 | 2008-01-01 | Intel Corporation | Apparatus and method for multi-phase transformers |
US7449867B2 (en) * | 2005-07-26 | 2008-11-11 | International Rectifier Corporation | Multi-phase buck converter with a plurality of coupled inductors |
TWI298220B (en) * | 2005-09-20 | 2008-06-21 | Asustek Comp Inc | Multi-phase buck converter |
US7692938B2 (en) * | 2006-09-06 | 2010-04-06 | Northern Power Systems, Inc. | Multiphase power converters and multiphase power converting methods |
-
2007
- 2007-09-05 US US11/850,103 patent/US7692938B2/en not_active Expired - Fee Related
- 2007-09-06 EP EP07841936.3A patent/EP2064804B1/en not_active Not-in-force
- 2007-09-06 JP JP2009527555A patent/JP2010503376A/ja active Pending
- 2007-09-06 CN CN2007800384160A patent/CN101548454B/zh not_active Expired - Fee Related
- 2007-09-06 WO PCT/US2007/077701 patent/WO2008030919A2/en active Application Filing
-
2013
- 2013-08-02 JP JP2013160994A patent/JP5753556B2/ja not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1470098A (zh) * | 2000-08-18 | 2004-01-21 | ����Դ��ҵ��˾ | 采用组合变压器的多功率转换器系统 |
CN1609742A (zh) * | 2003-10-20 | 2005-04-27 | 英特赛尔美国股份有限公司 | 高抗扰度与任意相位计数的计时式级联电流型稳压器 |
Also Published As
Publication number | Publication date |
---|---|
JP5753556B2 (ja) | 2015-07-22 |
EP2064804A4 (en) | 2014-11-26 |
WO2008030919A2 (en) | 2008-03-13 |
CN101548454A (zh) | 2009-09-30 |
EP2064804B1 (en) | 2017-03-15 |
US7692938B2 (en) | 2010-04-06 |
US20080074911A1 (en) | 2008-03-27 |
JP2013226044A (ja) | 2013-10-31 |
JP2010503376A (ja) | 2010-01-28 |
EP2064804A2 (en) | 2009-06-03 |
WO2008030919A3 (en) | 2008-07-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN101548454B (zh) | 多相功率变换器以及多相功率变换方法 | |
US10193461B2 (en) | Multi-phase resonant converter and method of controlling it | |
Glaser et al. | Output plane analysis of load-sharing in multiple-module converter systems | |
Ruan et al. | Three-level converters-a new approach for high voltage and high power DC-to-DC conversion | |
Mao et al. | Analysis of inductor current sharing in nonisolated and isolated multiphase dc–dc converters | |
CN201789430U (zh) | 逆变器 | |
US7800924B2 (en) | Power converter apparatus and methods using neutral coupling circuits with interleaved operation | |
CN100571008C (zh) | 串联谐振dc-dc变换器 | |
Boillat et al. | Modeling and experimental analysis of a Coupling Inductor employed in a high performance AC power source | |
CN103053102B (zh) | 在开关式电源转换器中使用桥拓扑减少波纹电流 | |
CN105871208A (zh) | 具有非对称相电感的多相开关电压调节器 | |
CN101540556A (zh) | 多电平变频器 | |
CN103532393A (zh) | Llc平衡 | |
JP2004357388A (ja) | 多相多重制御方式 | |
CN102986127A (zh) | 循环变流器的前馈控制 | |
Daryaei et al. | High efficiency and full MPPT range partial power processing PV module-integrated converter | |
Tashakor et al. | Topology, analysis, and modulation strategy of a fully controlled modular reconfigurable DC battery pack with interconnected output ports for electric vehicles | |
Thangavelu et al. | Design of New High Step‐Up DC‐DC Converter Topology for Solar PV Applications | |
Zhang et al. | Soft-switching and low conduction loss current-fed isolated bidirectional DC–DC converter with PWM plus dual phase-shift control | |
Guler et al. | Simplified single-stage buck-boost rectifier with proportional-integral and cascaded proportional-resonant control method | |
Fang et al. | Series-type switched-inductor Z-source inverter | |
CN100375379C (zh) | 交换式电源供应器及其振荡器频率调节器 | |
Glaser et al. | Application of a constant-output-power converter in multiple-module converter systems | |
Ibrahim et al. | A novel single-stage single-phase buck–boost inverter | |
Guillen et al. | Multi-Output Resonant Power Converters for Domestic Induction Heating |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: WINDPOWER HOLDING CO., LTD. Free format text: FORMER OWNER: DISTRIBUTED ENERGY SYSTEMS CORP. Effective date: 20120829 Owner name: NORTH ELECTRIC POWER SYSTEM UTILITY RATIO CO., LTD Free format text: FORMER OWNER: WINDPOWER HOLDING CO., LTD. Effective date: 20120829 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20120829 Address after: vermont Patentee after: NORTHERN POWER SYSTEMS, Inc. Address before: vermont Patentee before: Wind Power Holdings Ltd. Effective date of registration: 20120829 Address after: vermont Patentee after: Wind Power Holdings Ltd. Address before: vermont Patentee before: NORTHERN POWER SYSTEMS, Inc. |
|
ASS | Succession or assignment of patent right |
Owner name: DISTRIBUTED ENERGY SYSTEMS CORP. Free format text: FORMER OWNER: NORTH ELECTRIC POWER SYSTEM UTILITY RATIO CO., LTD. Effective date: 20141120 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20141120 Address after: vermont Patentee after: NORTHERN POWER SYSTEMS, Inc. Address before: vermont Patentee before: Northern Power Systems, Inc. |
|
TR01 | Transfer of patent right |
Effective date of registration: 20170627 Address after: American Georgia Patentee after: Wan Gao Electric Co.,Ltd. Address before: vermont Patentee before: NORTHERN POWER SYSTEMS, Inc. |
|
TR01 | Transfer of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20180906 |