JP2016067132A - 電力変換装置 - Google Patents
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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
- H02M3/33507—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
- H02M3/33515—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 with digital control
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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
- H02M3/337—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 in push-pull configuration
- H02M3/3376—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 in push-pull configuration with automatic control of output voltage or current
- H02M3/3378—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 in push-pull configuration with automatic control of output voltage or current in a push-pull configuration of the parallel type
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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
- H02M1/0003—Details of control, feedback or regulation circuits
- H02M1/0016—Control circuits providing compensation of output voltage deviations using feedforward of disturbance parameters
- H02M1/0019—Control circuits providing compensation of output voltage deviations using feedforward of disturbance parameters the disturbance parameters being load current fluctuations
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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
- H02M1/325—Means for protecting converters other than automatic disconnection with means for allowing continuous operation despite a fault, i.e. fault tolerant 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
- 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
- H02M3/3353—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 at least two simultaneously operating switches on the input side, e.g. "double forward" or "double (switched) flyback" 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
- 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
Abstract
【解決手段】電力変換装置10は、電圧制御電流Imosを調整する半導体スイッチQ1〜Q4と、電気負荷60に印加されるリモート電圧Vsを検出するリモート電圧センサS1と、出力端子から出力されるローカル電圧Voを検出するローカル電圧センサS2と、制御部20とを備える。制御部20は、リモート電圧Vs及びローカル電圧Voのいずれか一方と、目標電圧Vs*との電圧偏差に基づいて、目標電流Irefを算出し、電圧制御電流Imosが目標電流Irefとなるように半導体スイッチQ1〜Q4の制御を行うことで、出力電圧を目標電圧Vs*に調整し、リモート電圧Vs及びローカル電圧Voのうち、目標電流Irefが小さくなる方を用いて、目標電流Irefを算出する。
【選択図】 図1
Description
図1に本実施形態の電力変換システムを示す。本電力変換システムは、電力変換装置10の入力端子が二次電池50に接続され、電力変換装置10の出力端子が電気負荷60に接続されて構成されている。電力変換装置10は直流電源である二次電池50に並列接続されており、その二次電池50から直流電力を供給される。電力変換装置10は、二次電池50から供給される入力電圧を変換して出力する。電気負荷60は電力変換装置10によって所定の電圧に昇圧又は降圧された直流電力が供給されて駆動する駆動負荷である。また、電気負荷60は、駆動負荷に代えて充電対象としての二次電池であってもよい。
図5に第2実施形態における目標電流算出手段21aの機能ブロック図を示す。なお、本実施形態における電力変換装置の動作は、図3に示すタイミングチャートと同様である。
図6に第3実施形態における目標電流算出手段21bの機能ブロック図を示す。なお、本実施形態における電力変換装置の動作は、図3に示すタイミングチャートと同様である。
図7に第3実施形態における目標電流算出手段21cの機能ブロック図を示す。
・第1〜第3実施形態において、補正値Vαの0Vから0.5Vへの切り替え、及び、補正値Vαの0.5Vから0Vへの切り替えは、所定時間経過するのを待機しなくてもよい。つまり、リモート電圧センサS1が異常から正常になったと同時、及び、正常から異常になったと同時に補正値Vαを切り替えてもよい。
Claims (10)
- 出力端子が電気負荷に接続され、入力電圧を変換し出力電圧を当該電気負荷に対して供給する電力変換装置(10)であって、
開状態と閉状態とが切り替わることで、前記出力電圧を制御するための電圧制御電流を調整する半導体スイッチ(Q1〜Q4)と、
前記出力電圧として前記電気負荷に印加される電圧であるリモート電圧を検出する第1電圧検出手段(S1)と、
前記出力電圧として前記出力端子から出力される電圧であるローカル電圧を検出する第2電圧検出手段(S2)と、
前記リモート電圧及び前記ローカル電圧のいずれか一方と、前記出力電圧の目標値である目標電圧との電圧偏差に基づいて、前記電圧制御電流の目標値である目標電流を算出する目標電流算出手段(21)と、
前記電圧制御電流が前記目標電流となるように前記半導体スイッチの制御を行うことで、前記出力電圧を前記目標電圧に調整するスイッチ制御手段(22)と、
を備え、
前記目標電流算出手段は、前記リモート電圧及び前記ローカル電圧のうち、前記目標電流が小さくなる方を用いて、前記目標電流を算出することを特徴とする電力変換装置。 - 前記目標電流算出手段は、前記リモート電圧と前記目標電圧との電圧偏差、及び、前記ローカル電圧と前記目標電圧との電圧偏差のうち、小さい方の電圧偏差を用いて、前記目標電流を算出することを特徴とする請求項1に記載の電力変換装置。
- 前記目標電流算出手段は、前記リモート電圧と前記目標電圧との電圧偏差に基づいて第1目標電流を算出するとともに、前記ローカル電圧と前記目標電圧との電圧偏差に基づいて第2目標電流を算出し、前記第1目標電流及び前記第2目標電流のうち小さい方を前記目標電流として選択して用いることを特徴とする請求項1に記載の電力変換装置。
- 前記第2電圧検出手段による前記ローカル電圧の検出周期は、前記第1電圧検出手段による前記リモート電圧の検出周期に比べて短いものであり、
前記目標電流算出手段による前記第1目標電流及び第2目標電流の算出周期と、前記第2電圧検出手段による前記ローカル電圧の検出周期とが同期しており、
前記目標電流算出手段は、比例積分制御を用いて前記第1目標電流及び前記第2目標電流を算出するものであって、
前記第1目標電流の算出における比例積分制御のゲインは、前記第2目標電流の算出における比例積分制御のゲインに比べて小さく設定されていることを特徴とする請求項3に記載の電力変換装置。 - 前記第1目標電流の算出における比例ゲインと前記第2目標電流の算出における比例ゲインとの比を、前記第1電圧検出手段による前記リモート電圧の検出周期と前記第2電圧検出手段による前記ローカル電圧の検出周期との逆比と等しく設定することを特徴とする請求項4に記載の電力変換装置。
- 前記第2目標電流が前記目標電流として所定時間にわたって選択され続けていることを条件とし、前記第1目標電流を小さくするように前記リモート電圧に所定量を加算する補正又は前記目標電圧から所定量を減算する補正を行い、前記第1目標電流が前記目標電流として所定時間にわたって選択され続けていることを条件とし、前記補正を行わない補正手段(23c)を備えることを特徴とする請求項3乃至5のいずれか1項に記載の電力変換装置。
- 前記第1電圧検出手段が正常であることを条件とし、前記ローカル電圧と前記目標電圧との偏差が所定量大きくなるように補正を行い、前記第1電圧検出手段に異常が生じていることを条件とし、前記補正を行わない補正手段(26,26a,27c)を備えることを特徴とする請求項1乃至6のいずれか1項に記載の電力変換装置。
- 前記補正手段は、前記所定量として前記電力変換装置の出力電流の最大値と、前記出力端子と前記電気負荷との間の配線抵抗との積より大きい値を用いることを特徴とする請求項6又は7に記載の電力変換装置。
- 前記第1電圧検出手段による前記リモート電圧の検出周期と、前記第2電圧検出手段による前記ローカル電圧の検出周期とは、互いに異なることを特徴とする請求項1乃至8のいずれか1項に記載の電力変換装置。
- 前記第2電圧検出手段による前記ローカル電圧の検出周期は、前記第1電圧検出手段による前記リモート電圧の検出周期に比べて短いものであり、
前記目標電流算出手段による前記目標電流の算出周期と、前記第2電圧検出手段による前記ローカル電圧の検出周期とが同期していることを特徴とする請求項9に記載の電力変換装置。
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US10554138B2 (en) | 2016-10-25 | 2020-02-04 | Infineon Technologies Austria Ag | Flux limited fast transient response in isolated DC-DC converters |
CN106817030A (zh) * | 2016-12-30 | 2017-06-09 | 比亚迪股份有限公司 | 电源装置 |
US10439500B2 (en) | 2017-02-01 | 2019-10-08 | Infineon Technologies Austria Ag | Control of isolated power converters during transient load conditions |
JP6983082B2 (ja) * | 2018-01-25 | 2021-12-17 | 株式会社Soken | Dc・ac変換器の制御装置 |
JP6993905B2 (ja) * | 2018-03-06 | 2022-01-14 | 株式会社Soken | Dc・dcコンバータの制御装置 |
JP7174333B2 (ja) * | 2019-03-27 | 2022-11-17 | 株式会社Gsユアサ | 蓄電装置、蓄電素子の容量推定方法 |
JP7396008B2 (ja) * | 2019-12-09 | 2023-12-12 | 株式会社デンソー | センサ制御装置、センサ制御方法、センサ制御プログラム |
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US9692307B2 (en) | 2017-06-27 |
US20160094134A1 (en) | 2016-03-31 |
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