JP2014193111A - 直列接続された複数の電池直流マイクログリッド充放電システム - Google Patents
直列接続された複数の電池直流マイクログリッド充放電システム Download PDFInfo
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- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
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- Y02T10/00—Road transport of goods or passengers
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- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
【解決手段】本発明は、複数の2次電池を直列接続して充放電するとき充電及び放電電圧を電池1つに比べて著しく向上させ、直流マイクログリッドの適正電圧を電池列の最大電圧の2倍前後にして充放電電力制御用DC−DCコンバータの電力変換の効率を高めると共に、リニア定電流源を付加して電池列の変化にも安定的な充放電が可能であり、充放電に使用される直流の電気格納装置を一般的な電解コンデンサとスーパーコンデンサ、あるいは2次電池の列の組み合せで構成することで、充放電システムの電力変換の効率を向上させ、システムを単純化するためのアルゴリズム及びこれを搭載した直流マイクログリッド充放電システムに関する。
【選択図】図2
Description
12:双方向DC−DCコンバータ
13:リニア電流電源
14:ホストPC
15:CPU
16:通信手段
17:コントローラ
18:能動バランス回路
19:保護回路
20:リレー制御部
21:電圧計
22:温度計
23:ターミナル接続ユニット
24:電池
25:PWM信号
Claims (11)
- 直列接続された複数の2次電池直流マイクログリッド充放電システムにおいて、
電池1つの電圧に比べて高い電圧でDC−DCコンバータが動作するように構成して高い電力転換効率で充電及び放電するように電気的に直列接続された複数の2次電池と、
高い電力転換効率で直列に接続された複数の2次電池に充放電されるように電力を供給するための双方向DC−DCコンバータと、
を含むことを特徴とする直流マイクログリッド充放電システム。 - 前記双方向DC−DCコンバータの次の端に位置して直列に接続された複数の2次電池の数に関わらず安定的かつ精密に制御して充放電されるように電流を供給するためのリニア電流電源をさらに含むことを特徴とする請求項1に記載の直流マイクログリッド充放電システム。
- 前記直流マイクログリッド充放電システムの双方向DC−DCコンバータの前端に双方向DC−DCコンバータに安定的に電源を供給し、停電時にも電源を供給することのできる直流電気格納装置をさらに含むことを特徴とする請求項1または請求項2に記載の直流マイクログリッド充放電システム。
- 前記直流マイクログリッド充放電システムで複数の直列に接続された互いに異なる容量と内部抵抗を含む互いに異なる特性を有する各電池が同時に充放電されるように制御するためのコントローラを備えることを特徴とする請求項3に記載の直流マイクログリッド充放電システム。
- 前記直流マイクログリッド充放電システムで複数の直列に接続された互いに異なる容量と内部抵抗を含む互いに異なる特性を有する各電池が同時に充電が行われるようにコントローラの制御下で、直列に接続された各電池に電流を供給したり遮断することのできるリレーまたはスイッチング回路を各電池の前端に接続設置することを特徴とする請求項3に記載の直流マイクログリッド充放電システム。
- 前記直流マイクログリッド充放電システムは、複数の直列に接続された異なる容量と内部抵抗を含む互いに異なる特性を有する各電池が同時に充電されるように制御するため、直列に接続された各電池の両端電圧を測定する電圧計または絶縁型の電池計測部がさらに備えられることを特徴とする請求項3に記載の直流マイクログリッド充放電システム。
- 前記直流マイクログリッド充放電システムのコントローラは、直列に接続された各電池について、電流計、温度計、及び電圧計から入力された値に基づいて電池を安定的に充電及び放電が行われるように制御する制御プログラムが搭載されることを特徴とする請求項4に記載の直流マイクログリッド充放電システム。
- 前記直流マイクログリッド充放電システムは、直列に接続された各電池を充放電するために各電池の間に設けられたリレーを開放したときと開放後の接点に付着されるとき、充放電電流が安定的に動作してリレーの耐久性を高めるための保護回路をさらに備えることを特徴とする請求項3に記載の直流マイクログリッド充放電システム。
- 前記コントローラは、双方向ツェナーダイオードまたはダイオード、コンデンサ及び抵抗から構成し、リレーを開放するときと開放後の接点に付着するときに電流を次の端の電池にバイパスさせるように構成されることを特徴とする請求項4に記載の直流マイクログリッド充放電システム。
- 前記直流マイクログリッド充放電システムは、直列接続された複数の内部抵抗または容量が互いに異なる2次電池を定電圧モードに充電するとき、前記コントローラでパルス幅変調信号を出力し、その信号に応じて電池の充電電流を開閉したり、前記コントローラで出力するパルス幅変調信号を直流電流に演算して電池の充電電流の一部を消費したりバイパスさせて電池を定電圧状態で充電する能動型バランシング回路をさらに備えることを特徴とする請求項4に記載の直流マイクログリッド充放電システム。
- 直流マイクログリッド充放電システムは、1つの双方向DC−DCコンバータと1つのリニア電流電源に直列接続された複数の電池を充放電するように構成されたトレイ複数を同時に制御して充放電することのできるホストコンピュータをさらに備えることを特徴とする請求項3に記載の直流マイクログリッド充放電システム。
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KR1020130032882A KR101451009B1 (ko) | 2013-03-27 | 2013-03-27 | 직렬 연결된 다수 개의 전지 직류 마이크로그리드 충방전 시스템 |
KR10-2013-0032882 | 2013-03-27 |
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EP (1) | EP2784902A1 (ja) |
JP (1) | JP5959561B2 (ja) |
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KR101451009B1 (ko) | 2014-10-15 |
CN104079056A (zh) | 2014-10-01 |
US9455578B2 (en) | 2016-09-27 |
JP5959561B2 (ja) | 2016-08-02 |
CN104079056B (zh) | 2017-03-01 |
KR20140117923A (ko) | 2014-10-08 |
US20140292259A1 (en) | 2014-10-02 |
EP2784902A1 (en) | 2014-10-01 |
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