JP7075385B2 - 電力変換装置 - Google Patents
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- H—ELECTRICITY
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- H02M1/00—Details of apparatus for conversion
- H02M1/0003—Details of control, feedback or regulation circuits
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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
- H02M3/33569—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 having several active switching elements
- H02M3/33576—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 having several active switching elements having at least one active switching element at the secondary side of an isolation transformer
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- 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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- 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
- H02M3/1588—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 comprising at least one synchronous rectifier element
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- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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- 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
- H02M3/33569—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 having several active switching elements
- H02M3/33573—Full-bridge at primary side of an isolation transformer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/03—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for
- B60R16/033—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for characterised by the use of electrical cells or batteries
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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
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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
- H02M1/00—Details of apparatus for conversion
- H02M1/32—Means for protecting converters other than automatic disconnection
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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
- H02M1/00—Details of apparatus for conversion
- H02M1/32—Means for protecting converters other than automatic disconnection
- H02M1/327—Means for protecting converters other than automatic disconnection against abnormal temperatures
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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
- H02M3/33569—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 having several active switching elements
- H02M3/33576—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 having several active switching elements having at least one active switching element at the secondary side of an isolation transformer
- H02M3/33584—Bidirectional converters
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Description
以下、本発明に係る電力変換装置を具体化した第1実施形態について、図面を参照しつつ説明する。本実施形態の電力変換装置は、プラグインハイブリッド自動車や電気自動車等の電動化車両に搭載される。
以下、第1実施形態の変形例1について、第1実施形態との相違点を中心に説明する。
以下、第1実施形態の変形例2について、第1実施形態との相違点を中心に図面を参照しつつ説明する。第1実施形態では、変換回路として第1フルブリッジ回路30を用いたが、これを変更する。本実施形態では、変換回路としてハーフブリッジ回路を用いる。
以下、第2実施形態について、第1実施形態との相違点を中心に図面を参照しつつ説明する。第1実施形態では、電力変換装置20の構成にフルブリッジ回路を用いたが、これを変更する。本実施形態では、電力変換装置の構成を昇圧チョッパ回路とする。
以下、第3実施形態について、第1実施形態との相違点を中心に図面を参照しつつ説明する。本実施形態では、ゲート電圧設定部81の発熱モードにおけるオフ時のゲート電圧Voffを設定する方法を変更する。
なお、環境温度Tが上限温度TL以上の場合、オフ時のゲート電圧Voffは第1オフ電圧Vαに設定される。また、環境温度Tが制限開始温度TC以下の場合、オフ時のゲート電圧Voffは第2オフ電圧Vβに設定される。
以下、第3実施形態の変形例について、第3実施形態との相違点を中心に図面を参照しつつ説明する。本実施形態では、ゲート電圧設定部81の発熱モードにおけるオフ時のゲート電圧Voffを設定する方法として、フィードバック制御を用いる。
以下、第4実施形態について、第1実施形態との相違点を中心に図面を参照しつつ説明する。本実施形態において、制御部70は、第5スイッチQ5及び第6スイッチQ6のオフ時のゲート電圧Voffを、第2オフ電圧Vβから一時的に第1オフ電圧Vαへと切り替える。
以下、第5実施形態について、第1実施形態との相違点を中心に図面を参照しつつ説明する。第5実施形態では、発熱モードにおけるスイッチングパターンを変更する。第1実施形態では、発熱モードにおいて、第5~第8スイッチQ5~Q8はオフされていたが、本実施形態では、第5~第8スイッチQ5~Q8はオンオフされる。
以下、第6実施形態について、第1実施形態との相違点を中心に図面を参照しつつ説明する。第1実施形態では、通常モードにおいて、第5~第8スイッチQ5~Q8をオフしたが、これを変更する。本実施形態では、通常モードにおいて第5~第8スイッチQ5~Q8をオンオフする。
以下、第7実施形態について、第1実施形態との相違点を中心に図面を参照しつつ説明する。第7実施形態では、第1実施形態の構成に熱伝達部を追加する。
なお、上記各実施形態は、以下のように変更して実施してもよい。
Claims (9)
- 入力側端子(CH1,CL1)、出力側端子(CH1,CL1)及びスイッチ部(Q5~Q8,Q11)を有し、前記入力側端子に接続される蓄電部(10)から、前記出力側端子に接続される給電対象(11)へと電力伝達を行う場合に前記スイッチ部をオンオフする電力変換装置(20,90,100)において、
前記スイッチ部は、該スイッチ部に逆導通電流が流れる場合において、そのゲート電圧が負側に大きいほど、逆導通電流が流れる場合に発生する導通損失が大きくなる特性を有しており、
前記電力伝達に伴う発熱量の増大要求があるか否かを判定する判定部と、
前記増大要求があると判定された場合、前記増大要求がないと判定された場合に比べて前記電力伝達を行うときに逆導通電流が流れる前記スイッチ部のオフ時のゲート電圧を負側に増大する制御部(70)と、を備える電力変換装置。 - 前記制御部は、前記増大要求があると判定された場合、前記スイッチ部のオフ時のゲート電圧を、前記電力伝達に伴って発生した熱を用いて昇温させる昇温対象要素の温度(T)に基づき設定する請求項1に記載の電力変換装置。
- 前記制御部は、前記昇温対象要素の温度が上限温度以上の場合、前記スイッチ部のオフ時のゲート電圧を第1オフ電圧に設定し、前記昇温対象要素の温度が、前記上限温度よりも低い制限開始温度以下の場合、前記スイッチ部のオフ時のゲート電圧を、前記第1オフ電圧よりも負側に増大した第2オフ電圧に設定する請求項2に記載の電力変換装置。
- 前記制御部は、前記昇温対象要素の温度が前記制限開始温度よりも高くてかつ前記上限温度よりも低い場合、前記スイッチ部のオフ時のゲート電圧を、前記昇温対象要素の温度が前記上限温度に近いほど前記第1オフ電圧に近づける請求項3に記載の電力変換装置。
- 前記制御部は、前記昇温対象要素の温度をその目標温度にフィードバック制御すべく、前記スイッチ部のオフ時のゲート電圧を設定する請求項2に記載の電力変換装置。
- 互いに磁気結合される第1コイル(50a)及び第2コイル(50b)を有するトランス(50)と、
前記入力側端子及び前記第1コイルに接続され、前記蓄電部から供給される直流電圧を交番電圧に変換して前記第1コイルに印加する変換回路(30)と、
前記出力側端子及び前記第2コイルに接続され、前記スイッチ部を有するフルブリッジ回路(40)と、を備え、
前記制御部は、前記増大要求があると判定された場合、逆導通電流が流れている前記スイッチ部のオフ時のゲート電圧を、正側に一時的に増大させる期間を設ける請求項1乃至5のいずれか一項に記載の電力変換装置。 - 互いに磁気結合される第1コイル及び第2コイルを有するトランスと、
前記入力側端子及び前記第1コイルに接続され、前記蓄電部から供給される直流電圧を交番電圧に変換して前記第1コイルに印加する変換回路と、
前記出力側端子及び前記第2コイルに接続され、前記スイッチ部を有するフルブリッジ回路と、を備え、
前記制御部は、前記増大要求があると判定された場合、前記スイッチ部のオン時のゲート電圧を、前記増大要求がないと判定された場合に比べ低減する請求項1乃至5のいずれか一項に記載の電力変換装置。 - 前記制御部は、前記増大要求がないと判定された場合、前記電力伝達を行うときに逆導通電流が流れる前記スイッチ部をオンする請求項1乃至7のいずれか一項に記載の電力変換装置。
- 前記電力伝達に伴って発生した熱を吸収し、その熱を昇温対象要素に伝達する熱伝達部(110)を備える請求項1乃至8のいずれか一項に記載の電力変換装置。
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