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    • 3. 发明专利
    • 半導体素子の駆動装置およびそれを用いた電力変換装置
    • 用于驱动半导体元件的装置和使用该半导体元件的功率转换装置
    • JP2015032984A
    • 2015-02-16
    • JP2013161193
    • 2013-08-02
    • 株式会社 日立パワーデバイスHitachi Power Semiconductor Device Ltd株式会社 日立パワーデバイス
    • INABA MASAMITSU
    • H03K17/08H02M1/00H02M1/08H02M7/48
    • 【課題】半導体スイッチング素子を短絡電流から確実に保護する半導体素子の駆動装置及びそれを用いた電力変換装置を提供する。【解決手段】半導体スイッチング素子の駆動装置が備える保護回路が、IGBT24を流れる主電流とIGBT24のゲート電圧とに基づいて短絡を検知し、短絡を検知したら短絡検知信号を出力する短絡検知部102と、IGBT24を流れる主電流に基づいて短絡を検知したら短絡電流のdi/dtを低減する短絡di/dt制御部106と、短絡検知信号に基づいて駆動部105に遮断指令信号を送信する駆動遮断部104とを備え、駆動部105は、短絡電流のdi/dtが低減されたら、遮断指令信号に基づいてIGBT24をターンオフする。【選択図】図1
    • 要解决的问题:提供一种用于驱动半导体元件的装置及其电力转换装置,其可靠地保护半导体开关元件免受短路电流的影响。解决方案:设置在用于驱动半导体开关元件的装置中的保护电路包括: 用于根据流过IGBT24的主电流和IGBT24的栅极电压来检测短路的短路检测部102,如果检测短路则输出短路检测信号; 短路di / dt控制部分106,用于根据流经IGBT24的主电流检测短路来减小短路电流的di / dt; 以及用于根据短路检测信号向驱动部分105发送中断指令信号的驱动中断部分104。 基于短路电流的di / dt减小后的中断指令信号,驱动部105关断IGBT24。
    • 7. 发明专利
    • Semiconductor control device, and power conversion equipment
    • 半导体控制器件和功率转换器件
    • JP2014117112A
    • 2014-06-26
    • JP2012271075
    • 2012-12-12
    • Hitachi Power Semiconductor Device Ltd株式会社 日立パワーデバイス
    • INABA MASAMITSU
    • H02M1/08H02M1/00H02M7/48
    • PROBLEM TO BE SOLVED: To prevent short circuit vibration by switching a gate resistance when turning on a switching element right after detecting short circuit and delaying turning-on to suppress di/dt.SOLUTION: A main circuit is formed by a plurality of switching elements for performing DC to AC conversion, a first series circuit in which a first switching element, a first resistor, a second resistor, and a second switching element are arranged in this order between DC power supply terminals, and the connection point of the first resistor and the second resistor is connected to the gates of the switching elements, and a second series circuit in which a third switching element and a third resistor are arranged in this order and are connected between one end of the DC power supply terminal and the gates of the switching elements are provided, and the first switching element and the second switching element are alternately controlled by a control signal, and the third switching element is turned on by detecting short circuit of the main circuit to connect the third resistor having a resistance value larger than that of the first resistor to the gate of the switching element.
    • 要解决的问题:为了防止在检测短路后立即接通开关元件并延迟开启以抑制di / dt时切换栅极电阻的短路振荡。解决方案:主电路由多个开关元件 为了进行直流到交流转换,第一串联电路,其中第一开关元件,第一电阻器,第二电阻器和第二开关元件按此顺序布置在直流电源端子与第一电阻器的连接点之间 并且第二电阻器连接到开关元件的栅极,并且第二串联电路,其中第三开关元件和第三电阻器按顺序排列并且连接在直流电源端子的一端和栅极之间 提供开关元件,并且第一开关元件和第二开关元件由控制信号交替地控制,并且第三开关元件i 通过检测主电路的短路来将具有大于第一电阻器的电阻值的第三电阻器连接到开关元件的栅极来接通。
    • 10. 发明专利
    • Device and method for controlling rotating electric machine
    • 用于控制旋转电机的装置和方法
    • JP2007049835A
    • 2007-02-22
    • JP2005232287
    • 2005-08-10
    • Hitachi Ltd株式会社日立製作所
    • TAKAMI KAZUHISASHIRAKAWA SHINJIINABA MASAMITSUYAMAUCHI TATSUMIIWAMURA MASAHIROSAITO AKIHIRO
    • H02P29/00G01P3/481
    • PROBLEM TO BE SOLVED: To provide a device and method for controlling a rotating electric machine capable of preventing a control operation from being operated unsteady, even if a power running control is transited to a power generation control and the power generation control is transited to the power running control in a rotating electric machine control. SOLUTION: The device includes a main circuit connected between a plurality of rotor winding terminals of the rotating electric machine and a low potential of a battery, and a control unit for controlling the power running and the power generation by turning ON/OFF the main circuit; and switches and controls the power running and the power generation to perform the power running and the power generation, when a control command of the rotating electric machine is switched from a power running command to a power generation command or from the power generation command to the power running command. A stand-by command is added between the power running command and the power generation command, so that the power generation control and the power running control are prevented from being rapidly switched, thus preventing the occurrence of contradiction in the control switching operation. COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:为了提供一种用于控制能够防止控制操作不稳定的旋转电机的装置和方法,即使电力运行控制转移到发电控制,并且发电控制是 在旋转电机控制中转移到动力运行控制。 解决方案:该装置包括连接在旋转电机的多个转子绕组端子和电池的低电位之间的主电路,以及用于通过接通/断开来控制电力运行和发电的控制单元 主电路; 并且当旋转电机的控制命令从电力运行命令切换到发电命令或从发电命令切换到电力生成命令时,切换和控制电力运行和发电以执行电力运行和发电。 电源运行命令。 在功率运行命令和发电指令之间添加备用命令,防止发电控制和动力运行控制被快速切换,从而防止在控制切换操作中发生矛盾。 版权所有(C)2007,JPO&INPIT