JP6604179B2 - Charging apparatus and charging control method - Google Patents

Charging apparatus and charging control method Download PDF

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JP6604179B2
JP6604179B2 JP2015241117A JP2015241117A JP6604179B2 JP 6604179 B2 JP6604179 B2 JP 6604179B2 JP 2015241117 A JP2015241117 A JP 2015241117A JP 2015241117 A JP2015241117 A JP 2015241117A JP 6604179 B2 JP6604179 B2 JP 6604179B2
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power supply
charging
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supply units
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JP2017108555A (en
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慎司 広瀬
守 倉石
宏昌 吉澤
智之 伊藤
和寛 新村
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Toyota Industries Corp
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/18—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for batteries; for accumulators
    • 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
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • 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
    • H02J1/00—Circuit arrangements for dc mains or dc distribution networks
    • H02J1/10—Parallel operation of dc sources
    • H02J1/12—Parallel operation of dc generators with converters, e.g. with mercury-arc rectifier

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Protection Of Static Devices (AREA)
  • Secondary Cells (AREA)

Description

本発明は、充電装置及び充電制御方法に関する。   The present invention relates to a charging device and a charging control method.

充電装置の内部には複数の電源ユニットが搭載されることがある。搭載された複数の電源ユニットの内、ある電源ユニットで異常が検出された場合、異常が検出された電源ユニットの動作は停止され、正常な電源ユニットのみで充電が続けられる。   A plurality of power supply units may be mounted inside the charging device. When an abnormality is detected in a certain power supply unit among a plurality of mounted power supply units, the operation of the power supply unit in which the abnormality is detected is stopped, and charging is continued only with a normal power supply unit.

なお、関連する技術として特許文献１〜３に記載の技術が知られている。   In addition, the technique of patent documents 1-3 is known as a related technique.

特開２０１４−１７６２７２号公報JP 2014-176272 A 特開２０１３−０８５３９１号公報JP2013-085391A 特開２０１３−００９４６８号公報JP 2013-009468 A

しかしながら、電源ユニットの外的要因により異常が発生した場合には、全ての電源ユニットで異常が検出される可能性がある。全ての電源ユニットで異常が検出されて、全ての電源ユニットの動作が停止されると、充電装置による充電が停止してしまう。   However, when an abnormality occurs due to an external factor of the power supply unit, the abnormality may be detected in all the power supply units. When an abnormality is detected in all the power supply units and the operation of all the power supply units is stopped, the charging by the charging device is stopped.

本発明の一側面に係る目的は、電源ユニットで検出された異常が電源ユニットの内的要因で発生したか外的要因で発生したかに関係なく充電を可及的に実施できる充電装置を提供することである。   An object of one aspect of the present invention is to provide a charging device that can perform charging as much as possible regardless of whether an abnormality detected in the power supply unit is caused by an internal factor or an external factor of the power supply unit. It is to be.

本発明に係る一つの形態である充電装置は、複数の電源ユニットと充電制御ユニットとを含む。複数の電源ユニットは、入力された交流電力を直流電力に変換して出力する充電動作を実行する。充電制御ユニットは、複数の電源ユニットの内、１より大きい所定数以上の電源ユニットに異常が検出された場合に、複数の電源ユニットの充電動作を停止させ、複数の電源ユニットに充電動作をリトライさせる。   A charging apparatus according to one aspect of the present invention includes a plurality of power supply units and a charging control unit. The plurality of power supply units execute a charging operation of converting the input AC power into DC power and outputting the DC power. The charging control unit stops the charging operation of the plurality of power supply units and retries the charging operation to the plurality of power supply units when an abnormality is detected in a predetermined number of power supply units greater than 1 among the plurality of power supply units. Let

一実施形態に従った充電装置によれば、電源ユニットで検出された異常が電源ユニットの内的要因で発生したか外的要因で発生したかに関係なく充電を可及的に実施できる。   According to the charging device according to the embodiment, charging can be performed as much as possible regardless of whether the abnormality detected by the power supply unit is caused by an internal factor or an external factor of the power supply unit.

実施形態に従った充電装置の構成例を示す図である。It is a figure which shows the structural example of the charging device according to embodiment. 実施形態に従った充電制御方法の処理フローの一例を示す図である。It is a figure which shows an example of the processing flow of the charge control method according to embodiment.

以下図面に基づいて実施形態について詳細を説明する。
図１は、実施形態に従った充電装置の構成例を示す図である。充電装置１は、並列接続される複数の電源ユニット１１−１〜１１−Ｎ（Ｎは２以上の整数）及び充電制御ユニット（ＥＣＵ：Electronic Control Unit）１２を含む。以下の説明において複数の電源ユニット１１−１〜１１−Ｎを特に区別しない場合には、単に電源ユニット１１と記載する。 Hereinafter, embodiments will be described in detail with reference to the drawings.
FIG. 1 is a diagram illustrating a configuration example of a charging device according to the embodiment. The charging device 1 includes a plurality of power supply units 11-1 to 11 -N (N is an integer of 2 or more) and a charge control unit (ECU: Electronic Control Unit) 12 connected in parallel. In the following description, the power supply units 11-1 to 11 -N are simply referred to as the power supply unit 11 unless otherwise distinguished.

電源ユニット１１は、電源ケーブル３を介して交流電源２から入力された交流電力を所定の直流電力に変換し、変換された直流電力を充電ケーブル５を介して蓄電装置４へ出力する。電源ユニット１１−１〜１１−Ｎは、ＡＣ−ＤＣ（Alternating Current - Direct Current）コンバータ１１１及びＤＣ−ＤＣ（Direct Current - Direct Current）コンバータ１１２を夫々含む。また、電源ユニット１１−１〜１１−Ｎは、電源ユニット制御部１１３、電流センサ１１４、及び電圧センサ１１５を夫々含む。   The power supply unit 11 converts AC power input from the AC power supply 2 via the power cable 3 into predetermined DC power, and outputs the converted DC power to the power storage device 4 via the charging cable 5. The power supply units 11-1 to 11-N include an AC-DC (Alternating Current-Direct Current) converter 111 and a DC-DC (Direct Current-Direct Current) converter 112, respectively. The power supply units 11-1 to 11-N include a power supply unit control unit 113, a current sensor 114, and a voltage sensor 115, respectively.

ＡＣ−ＤＣコンバータ１１１は、電源ユニット制御部１１３の指示に従って、入力された交流電力を直流電力に変換し、変換された直流電力をＤＣ−ＤＣコンバータ１１２へ出力する。ＤＣ−ＤＣコンバータ１１２は、電源ユニット制御部１１３の指示に従って、入力された直流電力を所定の直流電力に変換して出力する。   The AC-DC converter 111 converts the input AC power into DC power in accordance with an instruction from the power supply unit control unit 113, and outputs the converted DC power to the DC-DC converter 112. The DC-DC converter 112 converts the input DC power into predetermined DC power and outputs it in accordance with an instruction from the power supply unit control unit 113.

電源ユニット制御部１１３は、例えば、ＣＰＵ（Central Processing Unit）といったプロセッサ、ＦＰＧＡ（Field Programmable Gate Array）、又はＰＬＤ（Programmable Logic Device）である。電源ユニット制御部１１３は、充電制御ユニット１２と制御信号を送受信し、電源ユニット１１全体の動作を制御する。例えば、電源ユニット制御部１１３は、電流センサ１１４や電圧センサ１１５の測定値に異常があること、すなわち過電流や過電圧を検出すると、電源ユニット１１の異常（又は動作停止）を充電制御ユニット１２に通知し、電源ユニット１１各部の動作を停止させる。   The power supply unit control unit 113 is, for example, a processor such as a CPU (Central Processing Unit), an FPGA (Field Programmable Gate Array), or a PLD (Programmable Logic Device). The power supply unit controller 113 transmits and receives control signals to and from the charging control unit 12 and controls the operation of the entire power supply unit 11. For example, when the power supply unit control unit 113 detects that the measured value of the current sensor 114 or the voltage sensor 115 is abnormal, that is, detects an overcurrent or an overvoltage, the power supply unit 11 detects an abnormality (or operation stop) in the charge control unit 12. The operation of each part of the power supply unit 11 is stopped.

なお、図１に示す構成例では、電流センサ１１４は、ＤＣ−ＤＣコンバータ１１２からの出力電流を測定するが、例えば、ＡＣ−ＤＣコンバータ１１１への入力電流を測定する等、他の電流値を測定するように構成されてもよい。また、図１に示す構成例では、電圧センサ１１５は、ＤＣ−ＤＣコンバータ１１２からの出力電圧を測定するが、例えば、ＡＣ−ＤＣコンバータ１１１への入力電圧を測定する等、他の電圧値を測定するように構成されてもよい。さらに、電源ユニット１１内の任意の箇所の温度を測定する温度センサが設置されてもよい。電源ユニット制御部１１３は、温度センサの測定値に異常を検出すると、電源ユニット１１の異常（又は動作停止）を充電制御ユニット１２に通知し、電源ユニット１１各部の動作を停止させるように構成されてもよい。   In the configuration example shown in FIG. 1, the current sensor 114 measures the output current from the DC-DC converter 112, but other current values such as measuring the input current to the AC-DC converter 111 are used. It may be configured to measure. In the configuration example shown in FIG. 1, the voltage sensor 115 measures the output voltage from the DC-DC converter 112. For example, the voltage sensor 115 measures other voltage values such as measuring the input voltage to the AC-DC converter 111. It may be configured to measure. Furthermore, a temperature sensor that measures the temperature of an arbitrary location in the power supply unit 11 may be installed. The power supply unit control unit 113 is configured to notify the charge control unit 12 of an abnormality (or operation stop) of the power supply unit 11 and to stop the operation of each part of the power supply unit 11 when detecting an abnormality in the measured value of the temperature sensor. May be.

充電制御ユニット１２は、例えば、ＣＰＵといったプロセッサ、ＦＰＧＡ、又はＰＬＤである。充電制御ユニット１２は、電源ユニット１１−１〜１１−Ｎ夫々の電源ユニット制御部１１３及び蓄電装置４内の電池制御ユニット（図示せず）と制御信号を送受信し、充電装置１全体の動作を制御する。充電制御ユニット１２は、例えば、以下の説明のように動作する。   The charge control unit 12 is, for example, a processor such as a CPU, an FPGA, or a PLD. The charge control unit 12 transmits and receives control signals to and from the power supply unit control unit 113 of each of the power supply units 11-1 to 11 -N and the battery control unit (not shown) in the power storage device 4, and performs operations of the entire charging device 1. Control. The charging control unit 12 operates as described below, for example.

図２は、実施形態に従った充電制御方法の処理フローの一例を示す図である。なお、図２に示す充電制御方法は、充電装置１による蓄電装置４に対する充電が開始される前に実行されてもよいし、充電装置１による蓄電装置４に対する充電が開始された後に実行されてもよい。   FIG. 2 is a diagram illustrating an example of a processing flow of the charge control method according to the embodiment. 2 may be executed before charging of power storage device 4 by charging device 1 is started, or may be executed after charging of power storage device 4 by charging device 1 is started. Also good.

充電制御ユニット１２は、電源ユニット１１の異常を検出すると（Ｓ１で“ＹＥＳ”）、複数の電源ユニット１１−１〜１１−Ｎの内、所定数Ｍ（Ｍは１より大きくＮ以下の整数）以上の電源ユニット１１に異常が検出されたか否かを判定する（Ｓ２）。前述したように、電源ユニット１１に異常が発生した場合、充電制御ユニット１２は、電源ユニット１１の異常の通知（又は動作停止の通知）を当該電源ユニット１１の電源ユニット制御部１１３から受ける。   When the charging control unit 12 detects an abnormality in the power supply unit 11 (“YES” in S1), a predetermined number M (M is an integer greater than 1 and less than or equal to N) among the plurality of power supply units 11-1 to 11-N. It is determined whether or not an abnormality has been detected in the power supply unit 11 (S2). As described above, when an abnormality occurs in the power supply unit 11, the charging control unit 12 receives a notification of the abnormality of the power supply unit 11 (or notification of operation stop) from the power supply unit control unit 113 of the power supply unit 11.

所定数Ｍは、複数の電源ユニット１１−１〜１１−Ｎの内、所定数Ｍの電源ユニット１１に同時に故障が発生する確率に従って予め設定される。具体的には、複数の電源ユニット１１−１〜１１−Ｎの内、Ｍ個（例えば２個）の電源ユニット１１に同時に故障が発生する確率がＭ−１個（例えば１個）の電源ユニット１１に故障が同時に発生する確率よりも十分低い場合には、所定数はＭ（例えば２）に設定される。   The predetermined number M is set in advance according to the probability that the predetermined number M of power supply units 11 out of the plurality of power supply units 11-1 to 11-N will simultaneously fail. Specifically, among the plurality of power supply units 11-1 to 11 -N, M-1 (for example, 1) power supply units having a probability that a failure occurs simultaneously in M (for example, 2) power supply units 11. 11 is sufficiently lower than the probability of simultaneous failures, the predetermined number is set to M (for example, 2).

所定数Ｍ未満の電源ユニット１１に異常が検出されたと判定された場合（Ｓ２で“ＮＯ”）、充電制御ユニット１２は、検出された異常は電源ユニット１１の内的要因により発生した異常、すなわち、電源ユニット１１の故障であると確定する（Ｓ３）。電源ユニット１１の故障の一例としては、ＡＣ−ＤＣコンバータ１１１の故障及びＤＣ−ＤＣコンバータ１１２の故障等が挙げられる。   When it is determined that an abnormality is detected in the power supply units 11 less than the predetermined number M (“NO” in S2), the charge control unit 12 determines that the detected abnormality is an abnormality caused by an internal factor of the power supply unit 11, that is, Then, it is determined that the power supply unit 11 is out of order (S3). Examples of the failure of the power supply unit 11 include a failure of the AC-DC converter 111 and a failure of the DC-DC converter 112.

充電制御ユニット１２は、異常が検出された電源ユニット１１の充電動作を停止させ（Ｓ４）、異常が検出された電源ユニット１１以外の電源ユニット１１、すなわち正常な電源ユニット１１による充電動作を実行（続行）させる（Ｓ５）。具体的には、充電制御ユニット１２は、正常な電源ユニット１１により供給可能な最大電流値を蓄電装置４内の電池制御ユニット（図示せず）に通知し、該電池制御ユニットから電流指令値を受信する。充電制御ユニット１２は、受信した電流指令値に従って、正常な電源ユニット１１の電源ユニット制御部１１３に所望の電流値を指示し、正常な電源ユニット１１に所望の直流電流を出力させる。   The charging control unit 12 stops the charging operation of the power supply unit 11 in which the abnormality is detected (S4), and executes the charging operation by the power supply unit 11 other than the power supply unit 11 in which the abnormality is detected, that is, the normal power supply unit 11 ( (S5). Specifically, the charging control unit 12 notifies a maximum current value that can be supplied by the normal power supply unit 11 to a battery control unit (not shown) in the power storage device 4, and receives a current command value from the battery control unit. Receive. The charging control unit 12 instructs the power supply unit controller 113 of the normal power supply unit 11 to specify a desired current value according to the received current command value, and causes the normal power supply unit 11 to output a desired DC current.

一方、所定数Ｍ以上の電源ユニット１１に異常が検出されたと判定された場合（Ｓ２で“ＹＥＳ”）、充電制御ユニット１２は、検出された異常は電源ユニット１１の外的要因により発生した異常であると確定する（Ｓ６）。前述したように、所定数Ｍ以上の電源ユニット１１に故障が同時に発生する確率は、所定数Ｍ未満の電源ユニット１１に故障が同時に発生する確率よりも十分低い。そこで、所定数Ｍ以上の電源ユニット１１に異常が検出された場合には、電源ユニット１１の外的要因により異常が発生した可能性が高いといえる。外的要因の一例としては、交流電源２の停電、電源ケーブル３の破損、及び充電ケーブル５の破損等が挙げられる。このように、実施形態に従った充電制御方法によれば、電源ユニットの内的要因による異常（電源ユニットの故障）なのか、外的要因による異常なのかを切り分けて、充電を制御できる。   On the other hand, when it is determined that an abnormality has been detected in the power supply units 11 of a predetermined number M or more (“YES” in S2), the charge control unit 12 indicates that the detected abnormality is an abnormality caused by an external factor of the power supply unit 11. (S6). As described above, the probability that a failure occurs simultaneously in a predetermined number M or more of power supply units 11 is sufficiently lower than the probability that a failure occurs in power supply units 11 that are less than a predetermined number M simultaneously. Therefore, when an abnormality is detected in the power supply units 11 having a predetermined number M or more, it can be said that there is a high possibility that an abnormality has occurred due to an external factor of the power supply unit 11. Examples of external factors include a power failure of the AC power supply 2, damage to the power cable 3, and damage to the charging cable 5. Thus, according to the charge control method according to the embodiment, it is possible to control charging by distinguishing between an abnormality caused by an internal factor of the power supply unit (failure of the power supply unit) and an abnormality caused by an external factor.

検出された異常が外的要因により発生した異常であると確定された場合には、外的要因が除去されて異常が解消されるまで、充電装置１による充電は一端停止されることが望ましい。そこで、充電制御ユニット１２は、夫々の電源ユニット制御部１１３に停止指示信号を出力して、全ての電源ユニット１１−１〜１１−Ｎの充電動作を停止させる（Ｓ７）。しかしながら、電源ユニット１１に故障がないのであれば、異常の解消後に速やかに充電が再開されることが望ましい。そこで、充電制御ユニット１２は、夫々の電源ユニット制御部１１３にリトライ指示信号を出力して、停止した全ての電源ユニット１１−１〜１１−Ｎに充電動作をリトライさせる（Ｓ８）。   When it is determined that the detected abnormality is an abnormality caused by an external factor, it is desirable that charging by the charging device 1 is temporarily stopped until the external factor is removed and the abnormality is resolved. Therefore, the charging control unit 12 outputs a stop instruction signal to each power supply unit control unit 113 to stop the charging operation of all the power supply units 11-1 to 11-N (S7). However, if there is no failure in the power supply unit 11, it is desirable that charging be resumed promptly after the abnormality is resolved. Therefore, the charging control unit 12 outputs a retry instruction signal to each of the power supply unit control units 113, and causes all the stopped power supply units 11-1 to 11-N to retry the charging operation (S8).

Ｓ８において、充電制御ユニット１２は、所定数Ｍ以上の電源ユニット１１に検出された異常が回復するまで、複数の電源ユニット１１に充電動作を繰り返しリトライさせてもよい。或いは、Ｓ８において、充電制御ユニット１２は、一定時間の間、複数の電源ユニット１１に充電動作を繰り返しリトライさせてもよい。   In S8, the charging control unit 12 may cause the plurality of power supply units 11 to retry the charging operation repeatedly until the abnormality detected in the predetermined number M or more of the power supply units 11 is recovered. Alternatively, in S8, the charging control unit 12 may cause the plurality of power supply units 11 to retry the charging operation repeatedly for a certain time.

このように、実施形態に従った充電制御方法によれば、電源ユニットに故障が発生した場合には、正常な電源ユニットにより充電が実行され、電源ユニットの外的要因による異常が発生した場合には、外的要因による異常が解消された後速やかに充電が実行される。したがって、実施形態に従った充電装置によれば、電源ユニットで検出された異常が電源ユニットの内的要因で発生したか外的要因で発生したかに関係なく充電を可及的に実施できる。   Thus, according to the charge control method according to the embodiment, when a failure occurs in the power supply unit, charging is performed by the normal power supply unit, and when an abnormality due to an external factor of the power supply unit occurs. The battery is immediately charged after the abnormality due to external factors is resolved. Therefore, according to the charging device according to the embodiment, charging can be performed as much as possible regardless of whether the abnormality detected by the power supply unit is caused by an internal factor or an external factor of the power supply unit.

なお、本発明は、以上の実施の形態に限定されるものでなく、本発明の要旨を逸脱しない範囲内で種々の改良、変更が可能である。
例えば、前述の説明では、充電制御ユニット１２は、異常が検出された電源ユニット１１の充電動作を停止させ（Ｓ４）、正常な電源ユニット１１に充電動作を実行（続行）させる（Ｓ５）。しかしながら、充電制御ユニット１２は、全ての電源ユニット１１−１〜１１−Ｎの充電動作を停止させ、正常な電源ユニット１１に充電動作を実行（リトライ）させてもよい。こうした処理によれば、全ての電源ユニット１１の停止後正常な電源ユニット１１による充電動作が新たに開始される。このため、例えば、異常発生前に蓄電装置４が出力した電流指令値と、異常発生後に充電装置１が出力する電流値との不整合といった制御上の不都合が生じない。また、例えば、異常発生後に供給可能な最大電流値を充電装置１が蓄電装置４に通知するといった充電中の追加の処理が生じない。したがって、外的要因による異常発生後に充電装置１による充電が再開される場合と同様に、充電装置１による充電制御を単純化できる。 In addition, this invention is not limited to the above embodiment, A various improvement and change are possible within the range which does not deviate from the summary of this invention.
For example, in the above description, the charging control unit 12 stops the charging operation of the power supply unit 11 in which the abnormality is detected (S4), and causes the normal power supply unit 11 to execute (continue) the charging operation (S5). However, the charging control unit 12 may stop the charging operation of all the power supply units 11-1 to 11-N and cause the normal power supply unit 11 to execute the charging operation (retry). According to such processing, after all the power supply units 11 are stopped, the charging operation by the normal power supply unit 11 is newly started. For this reason, for example, there is no inconvenience in control such as a mismatch between the current command value output by the power storage device 4 before the occurrence of abnormality and the current value output by the charging device 1 after the occurrence of abnormality. In addition, for example, additional processing during charging in which the charging device 1 notifies the power storage device 4 of the maximum current value that can be supplied after the occurrence of an abnormality does not occur. Therefore, the charging control by the charging device 1 can be simplified as in the case where the charging by the charging device 1 is resumed after the occurrence of an abnormality due to an external factor.

１ 充電装置
１１（１１−１〜１１−Ｎ） 電源ユニット
１１１ ＡＣ−ＤＣコンバータ
１１２ ＤＣ−ＤＣコンバータ
１１３ 電源ユニット制御部
１１４ 電流センサ
１１５ 電圧センサ
１２ 充電制御ユニット
２ 交流電源
３ 電源ケーブル
４ 蓄電装置
５ 充電ケーブル 1 Charging Device 11 (11-1 to 11-N) Power Supply Unit 111 AC-DC Converter 112 DC-DC Converter 113 Power Supply Unit Control Unit 114 Current Sensor 115 Voltage Sensor 12 Charging Control Unit 2 AC Power Supply 3 Power Cable 4 Power Storage Device 5 charging cable

Claims (9)

入力された交流電力を直流電力に変換して出力する充電動作を実行する複数の電源ユニットと、
前記複数の電源ユニットの内、１より大きい所定数以上の電源ユニットに異常が検出された場合に、異常が検出された電源ユニットと異常が検出されなかった電源ユニットとを含む全ての電源ユニットの前記充電動作を停止させ、前記全ての電源ユニットに前記充電動作をリトライさせる充電制御ユニットと
を含む、充電装置。 A plurality of power supply units that perform a charging operation of converting input AC power into DC power and outputting the power;
Of the plurality of power supply units, when an abnormality is detected in a predetermined number or more of power supply units greater than 1, all of the power supply units including the power supply unit in which the abnormality is detected and the power supply unit in which no abnormality is detected are detected . And a charging control unit that stops the charging operation and causes all the power supply units to retry the charging operation. 請求項１に記載の充電装置であって、
前記充電制御ユニットは、前記所定数以上の電源ユニットに検出された異常が回復するまで、前記全ての電源ユニットに前記充電動作を繰り返しリトライさせる
充電装置。 The charging device according to claim 1,
The charging control unit is configured to repeatedly retry the charging operation for all the power supply units until an abnormality detected in the predetermined number or more of power supply units is recovered. 請求項１又は２に記載の充電装置であって、
前記充電制御ユニットは、前記複数の電源ユニットの内、前記所定数未満の電源ユニットに異常が検出された場合に、異常が検出された前記電源ユニット以外の電源ユニットに前記充電動作を実行させる
充電装置。 The charging device according to claim 1 or 2,
The charging control unit is configured to charge a power supply unit other than the power supply unit in which an abnormality is detected when the abnormality is detected in the power supply units less than the predetermined number among the plurality of power supply units. apparatus. 請求項１〜３の何れか一項に記載の充電装置であって、  The charging device according to any one of claims 1 to 3,
前記所定数は２である  The predetermined number is 2
充電装置。Charging device. 請求項１に記載の充電装置であって、  The charging device according to claim 1,
前記充電制御ユニットは、前記所定数以上の電源ユニットに異常が検出された場合には、検出された前記異常は電源ユニットの外的要因により発生した異常であると確定する  When an abnormality is detected in the predetermined number or more of power supply units, the charging control unit determines that the detected abnormality is an abnormality caused by an external factor of the power supply unit.
充電装置。Charging device. 請求項５に記載の充電装置であって、  The charging device according to claim 5,
前記外的要因は、前記交流電力を出力する交流電源の停電、前記交流電源と前記所定数以上の電源ユニットとの間の電源ケーブルの破損、前記所定数以上の電源ユニットと蓄電装置との間の充電ケーブルの破損の内の何れか１つである  The external factors include a power failure of an AC power source that outputs the AC power, a breakage of a power cable between the AC power source and the predetermined number of power supply units, or between the predetermined number of power supply units and the power storage device. One of the charging cable breaks
充電装置。Charging device. 請求項３に記載の充電装置であって、  The charging device according to claim 3,
前記充電制御ユニットは、前記所定数未満の電源ユニットに異常が検出された場合には、検出された前記異常は電源ユニットの内的要因により発生した異常であると確定する  The charging control unit determines that the detected abnormality is an abnormality caused by an internal factor of the power supply unit when an abnormality is detected in the power supply units less than the predetermined number.
充電装置。Charging device. 請求項７に記載の充電装置であって、  The charging device according to claim 7,
前記内的要因は、前記所定数未満の電源ユニットの故障である  The internal factor is a failure of the power supply unit less than the predetermined number.
充電装置。Charging device. 入力された交流電力を直流電力に変換して出力する充電動作を実行する複数の電源ユニットの内、１より大きい所定数以上の電源ユニットに異常が検出された場合に、異常が検出された電源ユニットと異常が検出されなかった電源ユニットとを含む全ての電源ユニットの前記充電動作を停止させ、
前記全ての電源ユニットに前記充電動作をリトライさせること
を含む充電制御方法。 A power supply in which an abnormality is detected when an abnormality is detected in a predetermined number or more of power supply units greater than one among a plurality of power supply units that perform a charging operation of converting input AC power into DC power and outputting the same Stopping the charging operation of all power supply units including the unit and the power supply unit in which no abnormality is detected ;
A charge control method including causing all the power supply units to retry the charging operation.
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