エネルギ移動回路、及び蓄電システム

    公开(公告)号:WO2021059949A1

    公开(公告)日:2021-04-01

    申请号:PCT/JP2020/033861

    申请日:2020-09-08

    Inventor: 倉貫 正明

    Abstract: セル選択回路(11)は、直列接続されたn(nは2以上の整数)個のセル(C1-C4)とインダクタ(L1)間に設けられ、選択セルの両端と、インダクタ(L1)の両端を導通可能である。クランプ回路(12)は、セル選択回路(11)がいずれのセル(C1-C4)も選択していない状態で、インダクタ(L1)を含む閉ループを形成するための少なくとも1つのクランプスイッチ(Sc1-Sc4)を有する。電流検出回路(Rs、AP1)は、インダクタ(L1)に流れる電流の値を検出する。ローパスフィルタ(15)は、検出値を帯域制限する。過電流検出回路(16)は、帯域制限された検出値が閾値を超えるとインダクタ(L1)の保護を発動する。

    通電制御装置および電源ユニット

    公开(公告)号:WO2021039177A1

    公开(公告)日:2021-03-04

    申请号:PCT/JP2020/027591

    申请日:2020-07-16

    Abstract: 通電制御装置は、系統間スイッチ(系統間SW)と、系統間スイッチ制御部としてのSW制御回路と、を備える。系統間SWは、系統間バスにおける電流の通電と遮断を切り替える。SW制御回路は、系統間SWの作動状態を制御する。SW制御回路は、電流取得部(S40)と、遮断制御部(S60)と、状態取得部(S20)と、閾値変更部(S30)とを有する。遮断制御部は、電流取得部により取得された電流値Ismrが異常閾値IsmrTHを超えて上昇した場合に、地絡異常が生じているとみなして系統間SWを遮断する。閾値変更部は、状態取得部により取得されたサブ電源電圧Vs(システム状態値)に応じて、異常閾値IsmrTHを変更させる。

    CONTROL SYSTEM FOR CHARGING OF NON/PARTIALLY INSULATED SUPERCONDUCTING MAGNETS AND RELATED TECHNIQUES

    公开(公告)号:WO2020257219A1

    公开(公告)日:2020-12-24

    申请号:PCT/US2020/038031

    申请日:2020-06-17

    Abstract: A system comprises a superconducting magnet comprising a coil of superconducting material. The coil includes electrical terminals. The windings of the coil are separated by a metallic conductor. A control circuit is coupled to the terminals to drive a current through the coil to charge the superconducting magnet and configured to provide a current through the coil that is sufficiently small to avoid a quenching effect of the superconducting magnet but also large enough to charge the magnet within a predetermined time period. A cooling structure is thermally coupled to the coil to remove heat caused by charging the superconducting magnet with the current to allow for the current to be sufficiently large to charge the magnet within the predetermined time period without causing the quenching effect.

    AN APPARATUS FOR PROTECTING AND CONTROLLING AN ELECTRICAL LOAD

    公开(公告)号:WO2020169780A1

    公开(公告)日:2020-08-27

    申请号:PCT/EP2020/054565

    申请日:2020-02-20

    Abstract: A load protection and control apparatus (1) for protecting and controlling an electrical load connected to the load protection and control apparatus (1) comprising an overcurrent protection circuit (1A) having a power switch (5) through which the electrical load receives an electrical load current (II) and having a sensor component (4) connected in series with the power switch (5) and adapted to generate directly a voltage drop (ΔU 4 ) corresponding to the current rise speed of the electrical load current (II) flowing from an input terminal (2) of the load protection and control apparatus (1) via the sensor component (4) and the power switch (5) to the output terminal (3) and having a driver circuit (6) adapted to detect an occurring overcurrent depending on the voltage drop (ΔU 4 ) generated by the sensor component (4) and/or depending on a voltage drop (ΔU 5 ) along the power switch (5) and adapted to switch off said power switch (5) upon detection of an overcurrent within a switch-off period of less than one millisecond; and/or comprising a power supply control circuit (1C) having a sensor component (9) adapted to measure at the input terminal (2) a supply voltage (U) notified to a control unit (8) of the load protection and control apparatus (1) adapted to control an electrical power supplied to the electrical load, wherein each input terminal (2) is configured to establish an electrical connection with a busbar (14) of a busbar system or with a current carrying wire.

    METHOD AND APPARATUS FOR PROTECTING AN ELECTRICAL LOAD

    公开(公告)号:WO2020169753A1

    公开(公告)日:2020-08-27

    申请号:PCT/EP2020/054519

    申请日:2020-02-20

    Abstract: A load protection apparatus for protecting an electrical load connected to an output terminal (3) of the load protection apparatus (1) against overcurrent, said apparatus (1) comprising: an overcurrent protection circuit (1A) having a power switch (5) through which the electrical load receives an electrical load current (I L ) via the output terminal (3) and having a sensor component (4) connected in series with the power switch (5) and adapted to generate directly a voltage drop (AU4) corresponding to the current rise speed of the electrical load current (I L ) flowing from an input terminal (2) of the load control apparatus (1) via the sensor component (4) and the power switch (5) to the output terminal (3) and having a driver circuit (6) adapted to detect an occurring overcurrent depending on the voltage drop (ΔU 4 ) generated by the sensor component (4) and depending on a voltage drop (ΔU 5 ) along the power switch (5) adapted to switch off said power switch (5) upon detection of an overcurrent within a switch-off period.

    一种伺服系统动力电缆断线检测的方法

    公开(公告)号:WO2020133876A1

    公开(公告)日:2020-07-02

    申请号:PCT/CN2019/086700

    申请日:2019-05-13

    Abstract: 一种伺服系统动力电缆断线检测的方法,首先建立电流环传递函数模型,给定电流环激励信号,并对电机电流进行检测,通过最小二乘法辨识得到电流环模型参数。系统运行时,速度环调节输出电流指令,再通过电流环模型求出预期电流。计算预期电流与系统检测得到的电机电流差并取绝对值,低通滤波处理。如果滤波后的值超过设定阈值,则认为伺服系统存在动力电缆断线故障。该伺服系统动力电缆断线检测的方法能实时检测伺服系统动力电缆断线的情况,及时避免由于动力电缆断线引起的机械故障等。该方案实现简单,检测的可靠性高,且无硬件成本增加,易于工程化应用。

    超导保护方法、超导保护装置及超导系统

    公开(公告)号:WO2020114062A1

    公开(公告)日:2020-06-11

    申请号:PCT/CN2019/109169

    申请日:2019-09-29

    Abstract: 本发明公开了一种超导保护方法、超导保护装置及超导系统,超导保护方法包括以下步骤:获取超导体的工作参数;将所述超导体的工作参数与预设值进行比较,当所述超导体的工作参数超过预设值时,发出指令,所述指令用于使所述超导体降场。上述超导保护方法,可将超导体的工作参数与预设值进行比较,当超导体的工作参数超过预设值时,发出指令,使超导体降场,消减超导体内的能量,防止超导体失超时过热,且通过设定预设值,可保证在超导体发生失超风险之前即开始降场操作。

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