JP6748954B2 - 電力変換システム、コネクタ - Google Patents
電力変換システム、コネクタ Download PDFInfo
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- JP6748954B2 JP6748954B2 JP2015513572A JP2015513572A JP6748954B2 JP 6748954 B2 JP6748954 B2 JP 6748954B2 JP 2015513572 A JP2015513572 A JP 2015513572A JP 2015513572 A JP2015513572 A JP 2015513572A JP 6748954 B2 JP6748954 B2 JP 6748954B2
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Description
本発明の電力変換システムは、電力系統に接続された電力変換装置と、電池を搭載した機器に設けられた接続口に対して装着状態と非装着状態とになるコネクタと、処理部とを備え、前記処理部は、前記コネクタにおいて前記電力変換装置と前記電池との間の電路に挿入された開閉器と、前記電池と、の間の電路に定めた計測点で電圧値を計測する計測部と、前記計測部が計測した前記電圧値を所定の閾値と比較する判断部とを備え、前記判断部は、前記電池と前記接続口との間に設けられている第2の電路に挿入された第2の開閉器が前記第2の電路を遮断した状態で、前記計測部が計測した前記電圧値が前記閾値を超える場合に異常と判断することを特徴とする。
以下に説明する電力変換システムは、図1に示すように、電力変換装置10とコネクタ30とを備える。電力変換装置10は、交流と直流との間で双方向に電力変換を行う変換回路11を備える。電力変換装置10の筐体は、住宅の壁に取り付けられる壁掛け型、地面に設置される据え置き型などから選択される。変換回路11は、住宅に設置された分電盤60に電気的に接続され、ケーブル20を用いてコネクタ30と接続される。分電盤60は系統電源61に接続された主幹回路を複数系統の分岐回路に分岐させる。分岐回路には電気負荷62が電気的に接続される。
実施形態1では、第1の検出部331は、開閉器31の開状態と閉状態とを検出するために、開閉器31に主接点である接点311、312とは別に設けられた補助接点313を用いている。これに対して、本実施形態では、第1の検出部331が、補助接点313を用いることなく開閉器31の開状態と閉状態とを検出する構成例を説明する。以下、実施形態1と同様の構成については共通の符号を付して説明を省略する。
図4に示す本実施形態の構成において、コネクタ30に設けられた処理部33は、コネクタ30に内蔵した開閉器31の異常を検出するだけではなく、電動車両40に設けられた開閉器43の異常も検出するように構成される。処理部33は、開閉器31と挿入部304との間の2つの電路511、512にそれぞれ設定された計測点P1、P2の間の電圧値を監視し、この電圧値を用いて開閉器31および開閉器43の異常を検出するように構成されている。
実施形態3では、図4のように、コネクタ30の電路511、512に定めた計測点P1、P2の間の電圧値を計測することによって、コネクタ30に設けられた開閉器31または電動車両40に設けられた開閉器43に異常があるか否かを判断している。一方、コネクタ30の電路511、512または電動車両40の電路521、522によって生じる容量成分が存在していると、開閉器31あるいは開閉器43が開状態であっても、計測部333が計測する電圧値が閾値を超える可能性がある。本実施形態は、このような容量成分により生じる残留電荷を除去するために、図5のように、処理部33に放電部335を設けた構成例を説明する。本実施形態において、実施形態3と同様の構成については共通の符号を付して説明を省略する。
上述した各実施形態では、コネクタ30に設けられた開閉器31あるいは電動車両40に設けられた開閉器43において、異常があるか否かを判断する構成について説明した。本実施形態は、開閉器31、43のいずれかに異常が生じているときに、コネクタ30のボディ301(図2参照)を接続口42に対して装着状態に維持する構成について説明する。ボディ301が接続口42に対して装着状態であるときに、解除ボタン323を操作し、所定の条件が満足されると、ボディ301を接続口42に対して非装着状態とすることが可能である。
本実施形態のコネクタ30は、図8に示すように、第2給電部542に代えて、スイッチ回路55と第2給電部543とを備える点が実施形態5において説明したコネクタ30との構成と相違する。第2給電部542は、電路511、512から受電するが、第2給電部543は、補助電源としての車載バッテリ46から受電する。なお、実施形態5と同様の構成については、共通の符号を付して説明を省略する。
本実施形態のコネクタ30は、図10に示すように、図9に示した実施形態6の構成に対して、スイッチ回路55が省略され、電動車両40の車載バッテリ46と接触子423との間に補助スイッチ48が設けられた構成を備える。以下、実施形態6と同様の構成については、共通の符号を付して説明を省略する。
本実施形態のコネクタ30は、図11に示すように、図4に示した実施形態2の構成において、開閉機構32のアクチュエータ321の動作が電力変換装置10からの制御信号により制御される構成を備える。なお、実施形態2と同様の構成については、共通の符号を付して説明を省略する。
図13に示すように、本実施形態の電力変換装置10は、変換回路11と制御電源14と制御回路16とを備える。本実施形態において、実施形態1で説明した構成と同様の構成については共通の符号を付して説明を省略する。
Claims (10)
- 電力系統に接続された電力変換装置と、
電池を搭載した機器に設けられた接続口に対して装着状態と非装着状態とになるコネクタと、
処理部と、
前記コネクタにおいて前記電力変換装置と前記電池との間の電路に挿入されており、前記電路を導通させる閉状態と前記電路を遮断する開状態とが選択される開閉器と、
前記コネクタにおいて前記コネクタが前記装着状態であるときに前記開閉器の前記閉状態を許可し、前記コネクタが前記非装着状態であるときに前記開閉器を前記開状態にする開閉機構とを備え、
前記処理部は、
前記開閉器について前記開状態と前記閉状態とを検出する第1の検出部と、
前記コネクタについて前記装着状態と前記非装着状態とを検出する第2の検出部と、
前記第1の検出部が前記閉状態を検出し、かつ前記第2の検出部が前記非装着状態を検出している場合に異常と判断する判断部とを備える
ことを特徴とする電力変換システム。 - 前記第1の検出部と前記第2の検出部とは前記コネクタに設けられている
請求項1記載の電力変換システム。 - 前記開閉器は、前記電路を開閉する主接点と、前記主接点に連動して開閉する補助接点とを備え、
前記第1の検出部は、前記補助接点の状態を監視することにより前記開閉器が前記開状態か前記閉状態かを検出する
請求項1又は2記載の電力変換システム。 - 電力系統に接続された電力変換装置と、
電池を搭載した機器に設けられた接続口に対して装着状態と非装着状態とになるコネクタと、
処理部とを備え、
前記処理部は、
前記コネクタにおいて前記電力変換装置と前記電池との間の電路に挿入された開閉器と、前記電池と、の間の電路に定めた計測点で電圧値を計測する計測部と、
前記計測部が計測した前記電圧値を所定の閾値と比較する判断部とを備え、
前記判断部は、前記電池と前記接続口との間に設けられている第2の電路に挿入された第2の開閉器が前記第2の電路を遮断した状態で、前記計測部が計測した前記電圧値が前記閾値を超える場合に異常と判断する
ことを特徴とする電力変換システム。 - 前記判断部は、前記電力変換装置から電力が出力されず、かつ前記第2の開閉器に前記第2の電路を遮断する開状態が指示されている状態で、前記計測部が計測した前記電圧値が前記閾値を超える場合に前記第2の開閉器の異常と判断する
請求項4記載の電力変換システム。 - 前記コネクタは、前記電力変換装置と前記電池との間の前記電路において、前記第2の開閉器と前記電力変換装置との間の容量成分により生じる残留電荷を放電する放電部を備える
請求項4又は5記載の電力変換システム。 - 前記放電部は、前記計測部と兼用されている
請求項6に記載の電力変換システム。 - 前記処理部は前記コネクタに設けられており、
前記コネクタは、前記処理部による判断結果を表す2値の信号を前記電力変換装置に通知する通知部を備える
請求項2又は5記載の電力変換システム。 - 前記機器は、前記電池として蓄電池を搭載し、かつ前記蓄電池を走行用のエネルギー源に用いる電動車両である
請求項1〜8のいずれか1項に記載の電力変換システム。 - 電池を搭載した機器に設けられた接続口に対して装着状態と非装着状態とになるボディを備えるコネクタであって、
パルス状の駆動電圧が加えられたときに動作するラッチング型のアクチュエータを備えており、前記接続口に対して前記ボディが装着状態のときに、前記アクチュエータの動作によって、前記接続口からの前記ボディの取り外しを禁止するロック状態と前記接続口からの前記ボディの取り外しを許可するアンロック状態とを選択するように構成された開閉機構と、
処理部と、
前記処理部が異常と判断した期間には、前記開閉機構をアンロック状態に移行させる前記駆動電圧が前記アクチュエータに与えられないように、前記駆動電圧を無効化する無効化回路とを備え、
前記処理部は、
前記コネクタにおいて電力系統に接続された電力変換装置と前記電池との間の電路に挿入された開閉器と、前記電池と、の間の電路に定めた計測点で電圧値を計測する計測部と、
前記計測部が計測した前記電圧値を所定の閾値と比較する判断部とを備え、
前記判断部は、前記電池と前記接続口との間に設けられている第2の電路に挿入された第2の開閉器が前記第2の電路を遮断した状態で、前記計測部が計測した前記電圧値が前記閾値を超える場合に異常と判断する
ことを特徴とするコネクタ。
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2014
- 2014-04-23 JP JP2015513572A patent/JP6748954B2/ja active Active
- 2014-04-23 WO PCT/JP2014/002292 patent/WO2014174842A1/ja active Application Filing
- 2014-04-23 US US14/786,447 patent/US10536029B2/en active Active
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WO2024191067A1 (ko) * | 2023-03-13 | 2024-09-19 | 주식회사 에이치티솔루션 | 연료전지시스템 |
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EP2991188A4 (en) | 2016-12-14 |
US20160072341A1 (en) | 2016-03-10 |
US10536029B2 (en) | 2020-01-14 |
EP2991188A1 (en) | 2016-03-02 |
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EP2991188B1 (en) | 2023-07-26 |
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