JP2020530750A - 電気バッテリシステムの充電時の妨害アークを検出する方法 - Google Patents
電気バッテリシステムの充電時の妨害アークを検出する方法 Download PDFInfo
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Abstract
Description
4 バッテリシステム
6 第1の動作ステップ
8 第2の動作ステップ
10 ストリング
12 遮断装置
14 ブリッジ
16 第3の動作ステップ
18 直c電圧コンバータ
20 ブリッジ回路
22 半導体スイッチ
24 変圧器
26 交流電流網
28 第4の動作ステップ
30 電圧
32 電流
34 往線
36 帰線
38 第1の端子
40 第2の端子
42 第3の端子
44 第4の端子
46 スイッチ
48 制御ユニット
50 電圧センサ
52 電流センサ
54 センサプローブ
56 A/D変換器
58 妨害アークの検出方法
60 妨害アーク
62 第5の動作ステップ
64 第1の値
66 第4の時間ウィンドウ
67 第6の動作ステップ
70 第2の値
72 第5の時間ウィンドウ
74 第7の動作ステップ
76 第1の時間ウィンドウ
78 第1の制限値
79 発火時点
80 第8の動作ステップ
82 第2の時間ウィンドウ
84 第2の極限
86 第9の動作ステップ
88 第3の時間ウィンドウ
90 第10の動作ステップ
92 第3の制限値
94 第4の制限値
96 第5の制限値
98 第11の動作ステップ
100 第12の動作ステップ
102 第13の動作ステップ
Claims (11)
- 電気バッテリシステム(4)の充電時の妨害アーク(60)を検出する方法(58)であって、前記電気バッテリシステム(4)は、具体的には鉛蓄電池であり、電気的に直列接続されて、直流電圧コンバータ(18)によって給電されるストリング(10)を形成する、方法において、
前記ストリング(10)に印加される電圧(30)に対応する第1の値(64)を生成し、
前記ストリング(10)を通って流れる電流(32)に対応する第2の値(70)を生成し、
第1の条件として、前記第1の値(64)が、第1の時間ウィンドウ(76)内で、第1の制限値(78)を超える分だけ変化したかどうかを判定し、
第2の条件として、前記第2の値(70)が、第2の時間ウィンドウ(82)内で、第2の制限値(84)を超える分だけ変化したかどうかを判定し、
前記第1の条件及び前記第2の条件が第3の時間ウィンドウ(88)内に存在する場合に、アーク(60)を検出する、方法(58)。 - 前記第1の値(64)は、第4の時間ウィンドウ(66)にわたって前記ストリング(10)に印加される電圧(30)を平均化することによって生成されること、及び/又は、前記第2の値(70)は、第5の時間ウィンドウ(72)にわたって前記ストリング(10)を通って流れる電流(32)を平均化することによって生成されることを特徴とする、請求項1に記載の方法(58)。
- 前記第4又は前記第5の時間ウィンドウ(66,72)の長さは、一定であるように選択され、前記直流電圧コンバータ(18)の相の数の倍数と前記直流電圧コンバータ(18)の供給周波数との積の逆数、又は、その整数倍に相当することを特徴とする、請求項2に記載の方法(58)。
- 前記第3の時間ウィンドウ(88)の長さは、前記第4又は前記第5の時間ウィンドウ(66,72)の長さに等しくなるように選択されることを特徴とする、請求項2又は3に記載の方法(58)。
- 前記第1の制限値(78)は、12Vよりも小さく、及び/又は、6Vよりも大きくなるように選択されることを特徴とする、請求項1〜4のいずれか1項に記載の方法(58)。
- 前記第2の制限値(84)は、前記第1の制限値(78)と、システムインダクタンスの倍数との商に等しくなるように選択されることを特徴とする、請求項1〜5のいずれか1項に記載の方法(58)。
- 前記第1及び/又は前記第2の時間ウィンドウ(76,82)の長さは、一定であるように選択され、前記直流電圧コンバータ(18)の相の数の倍数と前記直流電圧コンバータ(18)の供給周波数との積の逆数、又は、その整数倍に相当することを特徴とする、請求項1〜6のいずれか1項に記載の方法(58)。
- 前記第3の時間ウィンドウ(88)の前に前記ストリング(10)に印加された電圧(30)が第3の制限値(92)よりも大きい場合、
前記第3の時間ウィンドウ(88)の前に前記ストリング(10)を通って流れる電流(32)が第4の制限値(94)よりも大きい場合、及び/又は、
前記第3の時間ウィンドウ(88)の間に、前記ストリング(10)を通って流れる電流(32)が、第5の制限値(96)よりも大きい場合にのみ、前記アーク(60)が検出されることを特徴とする、請求項1〜7のいずれか1項に記載の方法(58)。 - 具体的には鉛蓄電池である電気バッテリシステム(4)の製造方法(2)において、
未充電のバッテリシステム(4)を多数用意し、
前記未充電のバッテリシステム(4)を電気的に直列接続させて、ストリング(10)を形成し、
前記ストリング(10)と直流電圧コンバータ(18)との電気接点を形成し、
前記直流電圧コンバータ(18)によって、電圧(30)を前記ストリング(10)に印加するとともに、電流(32)を前記ストリング(10)に流し、
請求項1〜8のいずれか1項に記載の妨害アーク(60)の検出方法(58)を実行する、方法(2)。 - 前記アーク(60)が検出されると、前記ストリング(10)を前記直流電圧コンバータ(18)から電気的に分離することを特徴とする、請求項9に記載の方法(2)。
- 電気的に直列接続された多数のバッテリシステム(4)を備えるストリング(10)を、直流電源、具体的には直流電圧コンバータ(18)から電気的に遮断する遮断装置(12)であって、電流センサ(52)と、電圧センサ(50)と、請求項1〜8のいずれか1項に記載の方法(58)に従って動作される制御ユニット(48)とを備える遮断装置(12)。
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