JP2016220480A - 電力変換装置及びその電力変換制御手段 - Google Patents
電力変換装置及びその電力変換制御手段 Download PDFInfo
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- 238000006243 chemical reaction Methods 0.000 title description 7
- 238000010248 power generation Methods 0.000 claims abstract description 12
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- 208000016261 weight loss Diseases 0.000 abstract 3
- 239000003990 capacitor Substances 0.000 description 21
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- 230000004888 barrier function Effects 0.000 description 4
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- 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
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
-
- 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
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/33507—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of the output voltage or current, e.g. flyback converters
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- 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
- H02M7/483—Converters with outputs that each can have more than two voltages levels
- H02M7/49—Combination of the output voltage waveforms of a plurality of converters
-
- 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
- H02M7/53—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 using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/537—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 using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
- H02M7/5387—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 using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
-
- 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
- H02M7/4807—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 having a high frequency intermediate AC stage
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
-
- 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
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
Abstract
系統連係用のトランスの小型・軽量化が求められている。トランスにSSTを適用することで小型・軽量化を実現できるが、太陽光向けPCSを対象とした場合、太陽光発電の広範囲な電圧変動への対応とSST適用よる高周波化に対してDC/DCコンバータやインバータといった電力回路に使用されるパワーデバイスのスイッチング損失低減が必要である。また、系統電圧への昇圧が必要であり、昇圧前段における大電流経路の小型・軽量化も必要とされる。
【解決手段】
LLC共振コンバータ構成を適用し、その出力にインバータを備え、インバータを多重接続構成とする。太陽光のMPPT電圧に合わせて、LLC共振コンバータを大出力では定周波制御、低出力では昇圧制御、上限電圧では降圧制御することで、駆動損失の低減と電圧範囲への対応を実現する。
【選択図】図1
Description
Claims (10)
- LLC共振型のDC/DCコンバータと、前記DC/DCコンバータと接続されるインバータと、を備えた太陽光発電向け電源装置であって、前記インバータ出力端を直列多重接続したことを特徴とする電源装置。
- 前記請求項1記載の電源装置であって、前記インバータ出力端をY結線で直列多重接続したことを特徴とする電源装置。
- 前記請求項1記載の電源装置であって、前記インバータ出力端をΔ結線で直列多重接続したことを特徴とする電源装置。
- 前記請求項1から3記載のいずれかの電源装置であって、前記DC/DCコンバータは前記DC/DCコンバータの入力電圧が第1の所定電圧値よりも小さい場合に、前記インバータに出力される当該DC/DCコンバータの出力電圧が一定値となるように昇圧動作を行い、前記DC/DCコンバータは前記DC/DCコンバータの前記第1の所定電圧値よりも大きな値に設定される第2の所定電圧値よりも大きい場合に、前記インバータに出力される当該DC−DCコンバータの出力電圧が一定値となるように降圧動作を行うことを特徴とする電源装置。
- 前記請求項1から3記載のいずれかの電源装置であって、前記DC/DCコンバータは、当該DC/DCコンバータの入力電圧が前記第1の所定電圧地以上であり、かつ前記第2の所定電圧値以下である場合に、当該DC/DCコンバータの動作周波数が一定値となるように動作を行うことを特徴とする電源装置。
- 前記請求項1から3記載のいずれかの電源装置であって、前記DC/DCコンバータは、当該DC/DCコンバータの入力電圧が前記第1の所定電圧地以上であり、かつ前記第2の所定電圧値以下である場合に、当該DC/DCコンバータの動作周波数が昇圧動作周波数から降圧動作周波数まで変化するように動作を行うことを特徴とする電源装置。
- 前記請求項1から5記載の電源装置であって、前記DC/DCコンバータは、過負荷指令に基づき前記第2の所定電圧値を上昇させ、当該DC/DCコンバータの動作周波数が一定値となる電圧範囲を拡大させることを特徴とする電源装置。
- 前記請求項1から7記載の電源装置であって、前記インバータに2レベルインバータ構成を適用したことを特徴とする電源装置。
- 前記請求項1から7記載の電源装置であって、前記インバータに3レベルインバータ構成を適用したことを特徴とする電源装置。
- 前記請求項1から6記載の電源装置であって、前記インバータに新3レベルインバータ構成を適用したことを特徴とする電源装置。
Priority Applications (3)
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JP2015105980A JP6496608B2 (ja) | 2015-05-26 | 2015-05-26 | 電力変換装置及びその電力変換制御手段 |
US15/159,018 US9806622B2 (en) | 2015-05-26 | 2016-05-19 | Power conversion device and power conversion control method for the same |
EP16171425.8A EP3098956B1 (en) | 2015-05-26 | 2016-05-25 | Power conversion device and power conversion control method for the same |
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JP2015105980A JP6496608B2 (ja) | 2015-05-26 | 2015-05-26 | 電力変換装置及びその電力変換制御手段 |
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JP2016220480A true JP2016220480A (ja) | 2016-12-22 |
JP6496608B2 JP6496608B2 (ja) | 2019-04-03 |
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Cited By (1)
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WO2022068222A1 (zh) * | 2020-09-30 | 2022-04-07 | 阳光电源股份有限公司 | 一种级联式电力电子变压器及其控制方法 |
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DE102017105843A1 (de) * | 2017-03-17 | 2018-09-20 | Christian-Albrechts-Universität Zu Kiel | Elektrisches Energieversorgungsnetz und Verfahren zu dessen Betrieb |
US10569301B2 (en) * | 2017-06-23 | 2020-02-25 | Ulc Robotics, Inc. | Power supply for electromagnetic acoustic transducer (EMAT) sensors |
CN107612407B (zh) * | 2017-09-12 | 2020-04-21 | 东南大学 | 高功率密度电力电子变压器拓扑结构及其控制方法 |
CN108365626A (zh) * | 2018-02-28 | 2018-08-03 | 江苏建筑职业技术学院 | 一种基于固态变压器的智能小区供电系统 |
WO2019213546A1 (en) * | 2018-05-04 | 2019-11-07 | Nextracker Inc. | Systems and methods of dc power conversion and transmission for solar fields |
US11411510B2 (en) * | 2020-01-24 | 2022-08-09 | Lear Corporation | DC/AC inverter resonance topology |
BR112022007647A2 (pt) * | 2020-04-30 | 2022-12-13 | Huawei Digital Power Tech Co Ltd | Transformador de potência eletrônico e sistema de fonte de alimentação |
EP4092890A1 (en) * | 2021-05-20 | 2022-11-23 | Mitsubishi Electric R & D Centre Europe B.V. | A method and a system for controlling an isolated resonant converter |
CN114268213B (zh) * | 2022-03-01 | 2022-05-10 | 常州索维尔电子科技有限公司 | 基于llc电路的软开关电路、控制方法、控制装置 |
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CN105099211B (zh) * | 2014-05-13 | 2018-04-20 | 台达电子企业管理(上海)有限公司 | 直流对直流变换装置及其控制方法 |
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- 2016-05-19 US US15/159,018 patent/US9806622B2/en active Active
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US20120063177A1 (en) * | 2011-03-22 | 2012-03-15 | Paul Garrity | Solar Photovoltaic Power Conditioning Units |
WO2015056571A1 (ja) * | 2013-10-17 | 2015-04-23 | 日産自動車株式会社 | 電力変換装置及び電力変換方法 |
Cited By (1)
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WO2022068222A1 (zh) * | 2020-09-30 | 2022-04-07 | 阳光电源股份有限公司 | 一种级联式电力电子变压器及其控制方法 |
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JP6496608B2 (ja) | 2019-04-03 |
US20160352229A1 (en) | 2016-12-01 |
US9806622B2 (en) | 2017-10-31 |
EP3098956A1 (en) | 2016-11-30 |
EP3098956B1 (en) | 2021-11-17 |
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