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    • 1. 发明公开
    • Converter control device and air conditioner including converter control device
    • 变换器控制装置和空调器包括变换器控制装置
    • EP2651021A3
    • 2018-02-28
    • EP13162999.0
    • 2013-04-09
    • Mitsubishi Electric Corporation
    • Otorii, YuSaito, KatsuhikoFukuda, Masahiro
    • H02M1/42H02M7/06H02P27/08
    • H02M7/06H02M1/4225H02P27/08Y02B70/126
    • A converter-control device (10) comprises: a voltage-zero-cross detection unit (13) detecting zero cross of the alternate-current voltage and outputting a voltage zero-cross signal; a power-source-current detection unit (12) detecting a power source current of an alternate-current power source (1); a bus-line-voltage detection unit (11) detecting a bus-line voltage across the smoothing capacitor (5); a PWM-signal generation unit (19) generating a PWM-signal for on/off-controlling the switching unit (4), based on the power-source current, the bus-line voltage and a bus-line-voltage command value as a target voltage of the bus-line voltage; a power-source voltage-state detection unit (16) detecting a signal state of the alternate-current voltage based on the voltage zero-cross signal; and a fundamental-switching-frequency selection unit (17) selecting a fundamental switching frequency of the PWM-signal based on the signal state. The unit (19) generates the PWM-signal based on a fundamental switching signal having a fundamental switching frequency selected by the unit (17).
    • 一种转换器控制装置(10),包括:电压过零检测单元(13),用于检测交流电压的零交叉并输出电压过零信号; 检测交流电源(1)的电源电流的电源电流检测部(12);检测交流电源(1)的电源电流的电源电流检测部(12)。 检测平滑电容器(5)两端的母线电压的母线电压检测部(11) 基于电源电流,母线电压和总线电压命令值,生成用于对开关单元(4)进行导通/截止控制的PWM信号的PWM信号生成单元(19), 母线电压的目标电压; 基于电压零交叉信号检测交流电压的信号状态的电源电压状态检测单元(16) 以及基本切换频率选择单元(17),其基于信号状态来选择PWM信号的基本切换频率。 单元(19)基于具有由单元(17)选择的基本开关频率的基本开关信号来生成PWM信号。
    • 2. 发明公开
    • DC power supply apparatus
    • Gleichstromversorgungsvorrichtung
    • EP2355330A1
    • 2011-08-10
    • EP11000789.5
    • 2011-02-01
    • Mitsubishi Electric Corporation
    • Amano, KatsuyukiSuzuki, DaisukeSaito, Katsuhiko
    • H02M7/219
    • H02M7/219Y02B70/1483
    • A DC power supply apparatus comprising: a rectifying circuit including, a first rectifying portion, a second rectifying portion, a third rectifying portion and a fourth rectifying portion; a current detection portion; a first switching portion; and a second switching portion; wherein each of the first rectifying portion cooperatively operating with the first switching portion and the second rectifying portion cooperatively operating with the second switching portion is a semiconductor element which is formed by using a Schottky junction formed between silicon carbide or gallium nitride and metal and has a withstanding voltage property with respect to a voltage of an AC power supply.
    • 一种直流电源装置,包括:整流电路,包括第一整流部分,第二整流部分,第三整流部分和第四整流部分; 电流检测部; 第一切换部; 和第二切换部分; 其中与第一开关部分和第二整流部分协作操作的第一整流部分与第二开关部分协作地操作的是通过使用形成在碳化硅或氮化镓和金属之间的肖特基结而形成的半导体元件,并且具有 相对于AC电源的电压具有耐受电压特性。
    • 3. 发明公开
    • Converter control device and air conditioner including converter control device
    • Wandlersteuerungsvorrichtung und Klimaanlage mit der Wandlersteuerungsvorrichtung
    • EP2651021A2
    • 2013-10-16
    • EP13162999.0
    • 2013-04-09
    • Mitsubishi Electric Corporation
    • Otorii, YuSaito, KatsuhikoFukuda, Masahiro
    • H02M1/42
    • H02M7/06H02M1/4225H02P27/08Y02B70/126
    • A converter-control device (10) comprises: a voltage-zero-cross detection unit (13) detecting zero cross of the alternate-current voltage and outputting a voltage zero-cross signal; a power-source-current detection unit (12) detecting a power source current of an alternate-current power source (1); a bus-line-voltage detection unit (11) detecting a bus-line voltage across the smoothing capacitor (5); a PWM-signal generation unit (19) generating a PWM-signal for on/off-controlling the switching unit (4), based on the power-source current, the bus-line voltage and a bus-line-voltage command value as a target voltage of the bus-line voltage; a power-source voltage-state detection unit (16) detecting a signal state of the alternate-current voltage based on the voltage zero-cross signal; and a fundamental-switching-frequency selection unit (17) selecting a fundamental switching frequency of the PWM-signal based on the signal state. The unit (19) generates the PWM-signal based on a fundamental switching signal having a fundamental switching frequency selected by the unit (17).
    • A转换器控制装置(10)包括:电压零交叉检测单元(13),检测交流电压的零交叉并输出电压零交叉信号; 检测交流电源(1)的电源电流的电源电流检测单元(12)。 检测所述平滑电容器(5)两端的总线电压的总线电压检测部(11)。 基于电源电流,总线电压和总线电压指令值,生成用于开关单元(4)的开/关控制的PWM信号的PWM信号生成单元(19),作为 总线电压的目标电压; 电源电压状态检测单元,基于所述电压过零信号检测所述交流电压的信号状态; 以及根据所述信号状态选择所述PWM信号的基本开关频率的基频开关频率选择部(17)。 单元(19)基于具有由单元(17)选择的基本开关频率的基本开关信号来生成PWM信号。
    • 5. 发明公开
    • Inverter controller and refrigerating and air-conditioning unit
    • Umrichterregler undKühl-和Klimaanlageneinheit
    • EP2501030A2
    • 2012-09-19
    • EP12001606.8
    • 2012-03-08
    • Mitsubishi Electric Corporation
    • Kuwabara, YasushiMatsushita, ShinyaSaito, KatsuhikoFukuda, Masahiro
    • H02M7/5387
    • H02M1/08H02M1/44H02M7/53873H02M2001/0029H02M2001/0054Y02B70/1491
    • An inverter controller controlling an inverter main circuit, the inverter controller including: a PWM signal generating part which generates a PWM signal to control on-off of a plurality of switching elements configuring the inverter main circuit; an operating state detecting part which detects an operating state of a load based on a direct current bus voltage of the inverter main circuit, a motor current which flows between the inverter main circuit and the load and an operation instruction to the load; a gate resistance selecting signal generating part which generates a gate resistance selecting signal corresponding to the operating state of the load; and a gate resistance selecting part which selects gate resistances connected to gate terminals of the switching elements of the inverter main circuit by using the gate resistance selecting signal.
    • 逆变器控制器控制逆变器主电路,所述逆变器控制器包括:PWM信号生成部,其生成PWM信号,以控制构成所述逆变器主电路的多个开关元件的通断; 操作状态检测部,其基于逆变器主电路的直流母线电压检测负载的动作状态,在逆变器主电路和负载之间流动的电动机电流和对负载的动作指示; 门电阻选择信号生成部,其生成与负载的动作状态对应的栅极电阻选择信号; 以及栅极电阻选择部,其通过使用栅极电阻选择信号来选择与逆变器主电路的开关元件的栅极端子连接的栅极电阻。
    • 8. 发明公开
    • Inverter controller and refrigerating and air-conditioning unit
    • 变频控制器和制冷空调机组
    • EP2501030A3
    • 2017-11-15
    • EP12001606.8
    • 2012-03-08
    • Mitsubishi Electric Corporation
    • Kuwabara, YasushiMatsushita, ShinyaSaito, KatsuhikoFukuda, Masahiro
    • H02M7/5387H02M1/08
    • H02M1/08H02M1/44H02M7/53873H02M2001/0029H02M2001/0054Y02B70/1491
    • An inverter controller controlling an inverter main circuit, the inverter controller including: a PWM signal generating part which generates a PWM signal to control on-off of a plurality of switching elements configuring the inverter main circuit; an operating state detecting part which detects an operating state of a load based on a direct current bus voltage of the inverter main circuit, a motor current which flows between the inverter main circuit and the load and an operation instruction to the load; a gate resistance selecting signal generating part which generates a gate resistance selecting signal corresponding to the operating state of the load; and a gate resistance selecting part which selects gate resistances connected to gate terminals of the switching elements of the inverter main circuit by using the gate resistance selecting signal.
    • 1.一种逆变器控制器,其控制逆变器主电路,所述逆变器控制器包括:PWM信号生成部,其生成用于控制构成逆变器主电路的多个开关元件的开关的PWM信号; 动作状态检测部,其基于逆变器主电路的直流母线电压,在逆变器主电路与负载之间流动的电动机电流以及对负载的动作指示,检测负载的动作状态; 栅极电阻选择信号生成部,其生成与负载的动作状态对应的栅极电阻选择信号; 以及栅极电阻选择部,其使用栅极电阻选择信号来选择与逆变器主电路的开关元件的栅极端子连接的栅极电阻。