JP6711466B2 - 蓄電装置用昇降圧装置及び蓄電装置 - Google Patents
蓄電装置用昇降圧装置及び蓄電装置 Download PDFInfo
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- 238000009499 grossing Methods 0.000 claims description 112
- 239000003990 capacitor Substances 0.000 claims description 111
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- 238000007599 discharging Methods 0.000 claims description 5
- 238000010248 power generation Methods 0.000 description 8
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- 239000004065 semiconductor Substances 0.000 description 3
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- H—ELECTRICITY
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- 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
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- G—PHYSICS
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- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
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- H01M10/00—Secondary cells; Manufacture thereof
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- H01M10/44—Methods for charging or discharging
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- H—ELECTRICITY
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- H01M10/00—Secondary cells; Manufacture thereof
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- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
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- H—ELECTRICITY
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- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
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- H—ELECTRICITY
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- 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
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- H—ELECTRICITY
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- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
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- H—ELECTRICITY
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- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
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- H—ELECTRICITY
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- H02M1/00—Details of apparatus for conversion
- H02M1/36—Means for starting or stopping converters
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- H—ELECTRICITY
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- 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
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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
- H02M7/53—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
- H02M7/53871—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 with automatic control of output voltage or current
-
- 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
- H02M7/539—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 with automatic control of output wave form or frequency
- H02M7/5395—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 with automatic control of output wave form or frequency by pulse-width modulation
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4278—Systems for data transfer from batteries, e.g. transfer of battery parameters to a controller, data transferred between battery controller and main controller
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- 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
- H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J2207/20—Charging or discharging characterised by the power electronics converter
-
- 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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
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Description
特許文献1には、バッテリーから供給される直流電圧と、燃料電池から供給される直流電圧をそれぞれコンバータで昇圧し、そのコンバータの出力電圧を平滑キャパシタで平滑してインバータに供給する電源システムが開示されている。
この構成により、スイッチ回路が閉成されると、平滑用キャパシタの出力電圧が高圧直流バスラインに供給され、あるいは高圧直流バスラインから昇降圧回路に第二の直流電圧が供給される。
図1に示す一般家庭用の太陽光発電システムは、太陽光パネル1で発電された直流電力がパワーコンディショナー2で商用交流電力に変換され、家庭内の交流負荷3あるいは商用電力系統4に供給される。
パワーコンディショナー2は、上記PVコンバータ5、インバータ6、フィルタ7、リレー8、DC−DCコンバータ10及び制御部11を備えている。
電流選択回路16は、第三のリレースイッチ20と抵抗21との直列回路に対し第二のリレースイッチ22が並列に接続されている。第三のリレースイッチ20と第二のリレースイッチ22は、充放電制御部15から出力される制御信号RL3,RL2により開閉制御される。
[第一の場合]
第一の場合は、高圧直流バスライン9に電圧が印加されていない状態で蓄電装置12を高圧直流バスライン9に接続して、高圧直流バスライン9を昇圧する場合である。
次いで、第三の電圧計31の検出電圧値V3が所定値、ここでは280Vに達すると、第三のリレースイッチ20が開成(不導通状態)されるとともに、第二のリレースイッチ22が閉成される(ステップS5)。
図5に示す第二の場合は、ステップS6において、充放電制御部15がパワーコンディショナー2に対し電圧制御を行うための主導権を持たない場合である。
図6は、第三の場合を示す。第三の場合は、高圧直流バスライン9にパワーコンディショナー2から高圧電圧が供給されている状態で、蓄電装置12を高圧直流バスライン9に接続する場合である。
(1)蓄電装置12をコネクタ30を介して高圧直流バスライン9に接続するとき、あるいは高圧直流バスライン9に接続された蓄電装置12を起動するとき、蓄電装置12の平滑用キャパシタ27への突入電流の発生を防止することができる。従って、突入電流による第一のリレースイッチ29あるいはトランジスタ24の破壊を防止することができる。
・第三のリレースイッチ20は、半導体スイッチで構成してもよい。
・充放電制御部15は、例えば、実施形態で説明した種々の制御を実現するように構成されたコンピュータ可読命令を格納した1つ以上のメモリと、そのコンピュータ可読命令を実行するように構成された1つ以上のプロセッサとを備えてもよい。または、充放電制御部15は、特定用途向けIC(ASIC)等の集積回路であってもよい。
Claims (6)
- 第一の端子に供給される低電圧側の第一の直流電圧をPWM制御により昇圧して第二の端子に出力する昇圧動作と、前記第二の端子に供給される高電圧側の第二の直流電圧をPWM制御により降圧して前記第一の端子に出力する降圧動作を行う昇降圧回路と、
前記第二の端子と前記昇降圧回路との間に接続されて、前記昇降圧回路の昇圧出力電圧を平滑する平滑用キャパシタと、
前記第一の端子と前記昇降圧回路との間に介在されて、前記平滑用キャパシタに供給される充電電流を制限電流と非制限電流のいずれかに切り替える電流選択回路と、
前記平滑用キャパシタと前記第二の端子との間に介在されるスイッチ回路と、
前記平滑用キャパシタが充電されていない状態から前記昇圧動作を開始するときには、前記制限電流で前記平滑用キャパシタを充電した後に前記非制限電流を前記昇降圧回路に供給して前記昇圧動作を開始し、前記第二の端子に前記第二の直流電圧が供給されているときには、前記制限電流で前記平滑用キャパシタを充電した後に前記昇圧動作による昇圧電圧で前記平滑用キャパシタを充電し、前記平滑用キャパシタの充電電圧と前記第二の直流電圧との電位差を縮小した後に前記スイッチ回路を閉成する充放電制御部と
を備えたことを特徴とする蓄電装置用昇降圧装置。 - 充放電可能とした蓄電池と、
前記蓄電池から供給される低電圧側の第一の直流電圧をPWM制御により昇圧してコネクタを介して高圧直流バスラインに出力する昇圧動作と、前記高圧直流バスラインから前記コネクタに供給される高電圧側の第二の直流電圧をPWM制御により降圧して前記蓄電池に供給する降圧動作を行う昇降圧回路と、
前記コネクタと前記昇降圧回路との間に接続されて、前記昇降圧回路の昇圧出力電圧を平滑する平滑用キャパシタと、
前記蓄電池と前記昇降圧回路との間に介在されて、前記平滑用キャパシタに供給される充電電流を制限電流と非制限電流のいずれかに切り替える電流選択回路と、
前記平滑用キャパシタと前記高圧直流バスラインとの間に介在されるスイッチ回路と、
前記平滑用キャパシタが充電されていない状態から前記昇圧動作を開始するときには、前記制限電流で前記平滑用キャパシタを充電した後に前記非制限電流を前記昇降圧回路に供給して前記昇圧動作を開始し、前記高圧直流バスラインから前記コネクタに前記第二の直流電圧が供給されているときには、前記制限電流で前記平滑用キャパシタを充電した後に前記昇圧動作による昇圧電圧で前記平滑用キャパシタを充電し、前記平滑用キャパシタの充電電圧と前記第二の直流電圧との電位差を縮小した後に前記スイッチ回路を閉成する充放電制御部と
を備えたことを特徴とする蓄電装置。 - 請求項2に記載の蓄電装置において、
前記スイッチ回路は、前記コネクタと前記平滑用キャパシタとの間に介在されるリレースイッチで構成したことを特徴とする蓄電装置。 - 請求項2又は3に記載の蓄電装置において、
前記電流選択回路は、
制限電流側リレースイッチと抵抗との直列回路に、非制限電流側リレースイッチを並列に接続して構成し、
前記充放電制御部は、前記制限電流を前記平滑用キャパシタに供給するとき、前記制限電流側リレースイッチのみを閉成することを特徴とする蓄電装置。 - 請求項2乃至4のいずれか1項に記載の蓄電装置において、
前記平滑用キャパシタの充電電圧を検出する充電電圧検出用電圧計と、
前記第二の直流電圧を検出する高圧電圧検出用電圧計と
を備え、
前記充放電制御部は、前記充電電圧検出用電圧計の検出電圧と、前記高圧電圧検出用電圧計の検出電圧との電位差の縮小に基づいて前記スイッチ回路を閉成することを特徴とする蓄電装置。 - 請求項2乃至5のいずれか1項に記載の蓄電装置において、
前記昇降圧回路は、前記電流選択回路からコイル及びトランジスタのボディダイオードを介して前記平滑用キャパシタに充電電流を供給することを特徴とする蓄電装置。
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JP7196826B2 (ja) * | 2019-12-13 | 2022-12-27 | 株式会社オートネットワーク技術研究所 | スイッチ装置、電流判定方法及びコンピュータプログラム |
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