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1. 发明公开

EP2738928A1 POWER CONVERTER 审中-公开
标题翻译：电力转换器
公开(公告)号：EP2738928A1
公开(公告)日：2014-06-04
申请号：EP12835807.4
申请日：2012-02-09
申请人： Fuji Electric Co., Ltd.
发明人： ODAKA Akihiro , TOBA Akio , GEKINOZU Masakazu
IPC分类号： H02M3/155
CPC分类号： H02M3/156 , H02J7/0065 , H02M1/14 , H02M3/1588 , Y02B40/90 , Y02B70/1466
摘要： A power conversion device includes a semiconductor switch series circuit configured by connecting semiconductor switches S p and S n in series; a capacitor series circuit configured by connecting capacitors C dp and C dn in series; a reactor L connected between the series connection point of the semiconductor switches S p and S n and the series connection point of the capacitors C dp and C dn ; and a direct current power source V s connected in parallel to the capacitor C dn or C dp . The semiconductor switch series circuit and capacitor series circuit are connected in parallel, a load Load is connected between the parallel connection points of the two circuits, and the semiconductor switches S p and S n are turned on and off, thereby raising a direct current power source voltage and supplying it to the load Load. By so doing, it is possible to reduce the size and cost of the entire device.
摘要翻译：电力变换装置具有将半导体开关Sp，Sn串联连接而构成的半导体开关串联电路，通过串联电容器Cdp和Cdn配置的电容器串联电路; 连接在半导体开关Sp和Sn的串联连接点与电容器Cdp和Cdn的串联连接点之间的电抗器L; 以及与电容器Cdn或Cdp并联连接的直流电源Vs。半导体开关串联电路和电容器串联电路并联连接，负载连接在两个电路的并联连接点之间，并且半导体开关Sp和Sn导通和关断，由此将直流电源电压并将其提供给负载负载。通过这样做，可以减小整个设备的尺寸和成本。

2. 发明公开

EP2833543A1 ALTERNATING-CURRENT ELECTRIC SYSTEM AND CONTROL METHOD THEREOF 有权
标题翻译：在STEUERVERFAHRENDAFÜR的ELEKTRISCHES WECHSELSTROMSYSTEM
公开(公告)号：EP2833543A1
公开(公告)日：2015-02-04
申请号：EP12873174.2
申请日：2012-12-26
申请人： Fuji Electric Co., Ltd.
发明人： TOBA Akio
IPC分类号： H02P3/22 , H02M7/48
CPC分类号： H02P6/28 , H02P3/22 , H02P23/0004 , H02P29/0241
摘要： When the current flowing through each electric terminal of an alternating current motor 21 reaches the vicinity of zero, an operation putting the electric terminals of the alternating current motor 21 into an opened state, or putting an electric terminal into a conductive state via a reflux diode inside an inverter 11, is carried out. Herein, as an operation such that the current flowing through each electric terminal reaches the vicinity of zero, the electric terminals are short-circuited by all upper arm or lower arm switching elements of the inverter 11 being turned on. By so doing, a flow of electromagnetic energy of a reactance component of the alternating current motor 21, or the like, from the alternating current motor 21 into the inverter 11 side when the drive of the inverter 11 is stopped is prevented or suppressed. As a result of this, the occurrence of an overvoltage or overcurrent is prevented, thus protecting the inverter 11, a main capacitor 50, and a power supply, and increasing the safety of an alternating current electric system.
摘要翻译：当流过交流电动机21的各电气端子的电流达到零附近时，将交流电动机21的电气端子置于打开状态或通过回流二极管将电子端子置于导通状态的动作在逆变器11内进行。这里，作为流过各电气端子的电流达到零附近的动作，由于逆变器11的所有上臂或下臂开关元件被接通而导致短路。通过这样做，防止或抑制了逆变器11的驱动停止时交流电动机21等的电抗分量从交流电动机21向逆变器11侧的流动。结果，防止了过电压或过电流的发生，从而保护逆变器11，主电容器50和电源，并提高交流电系统的安全性。

3. 发明公开

EP2983285A1 POWER CONVERSION APPARATUS 审中-公开
标题翻译：电力转换装置
公开(公告)号：EP2983285A1
公开(公告)日：2016-02-10
申请号：EP14778955.6
申请日：2014-01-14
申请人： Fuji Electric Co., Ltd.
发明人： ODAKA Akihiro , TOBA Akio
IPC分类号： H02M7/48
CPC分类号： H02P29/68 , H02M2001/327
摘要： A power conversion apparatus includes a torque command adjusting unit (10A) that adjusts a torque command so that a semiconductor temperature obtained by a semiconductor temperature detecting unit/semiconductor temperature estimating unit (11) matches a preset temperature when the semiconductor temperature is equal to or higher than the preset temperature. The torque command adjusting unit (10A) includes: a regulating unit that includes at least a proportional regulator (13) and an integral regulator (14) and that operates to eliminate a deviation between the preset temperature and the semiconductor temperature; and a torque correction amount limiting unit (16) that limits a torque correction amount (τ comp *) which is an output of the regulating unit so that the torque correction amount (τ comp *) does not increase an absolute value of a torque command (τ*). The torque command adjusting unit (10A) corrects the torque command (τ*), using the torque correction amount (τ comp *) limited by the torque correction amount limiting unit (16). As a result, it is possible to prevent interference with a control system and to protect a semiconductor device from overheating appropriately and reliably without limiting the torque of a motor more than necessary.
摘要翻译：本发明提供一种电力变换装置，其特征在于，具备：转矩指令调整部（10A），其在半导体温度等于或大于等于半导体温度时，使半导体温度检测部/半导体温度推定部（11）得到的半导体温度与预先设定的温度一致地调整转矩指令高于预设温度。转矩指令调整部（10A）包括：调整部，其至少包括比例调整部（13）和积分调整部（14），用于消除设定温度与半导体温度的偏差; 以及扭矩校正量限制部（16），其对作为所述调整部的输出的扭矩校正量（τcomp*）进行限制，以使所述扭矩校正量（τcomp*）不增大转矩指令的绝对值（τ *）。转矩指令调整部（10A）使用由转矩修正量限制部（16）限制的转矩修正量（τcomp*）来修正转矩指令（τ*）。结果，可以防止与控制系统的干扰并且适当且可靠地保护半导体装置不会过热，而不会超过必要地限制电动机的转矩。

4. 发明公开

EP2728733A1 POWER CONVERSION DEVICE 审中-公开
标题翻译：电力转换装置
公开(公告)号：EP2728733A1
公开(公告)日：2014-05-07
申请号：EP12803729.8
申请日：2012-06-12
申请人： Fuji Electric Co., Ltd.
发明人： ODAKA Akihiro , TOBA Akio , AKIBA Shinya
IPC分类号： H02M7/48 , H02H7/122 , H02H9/04
CPC分类号： H02M7/537 , H02H7/122 , H02H9/041 , H02M7/48
摘要： The invention relates to a power conversion device including an inverter which converts a voltage of a direct current power source 2 to an alternating current voltage of any magnitude and frequency using semiconductor switches 4, and supplies the voltage to a load such as an electric motor 5, wherein a switch unit 3 is provided in the direct current portion of the inverter. In the invention, a capacitor 1 is connected, via the switch unit 3, between a positive electrode and a negative electrode of the direct current power source 2, and a constant voltage element wherein when a fixed voltage or higher is reached, an electrical resistance decreases abruptly, current flows, and voltages between both ends are limited to specific voltage, is connected in parallel to the capacitor 1. Herein, a varistor 6, a zener diode 7, or an avalanche diode is used, or alternatively, a combination of the zener diode 7 and a self-turn-off semiconductor element (an IGBT, a MOSFET, or the like), or the like, is used, as the constant voltage element. Owing to the heretofore described configuration, each part configuring the power conversion device is protected against overvoltage, thus avoiding an increase in the capacitance and volume of the capacitor 1.
摘要翻译：本发明涉及一种功率转换装置，其包括逆变器，该逆变器使用半导体开关4将直流电源2的电压转换成任何幅度和频率的交流电压，并将该电压供应给诸如电动机5 其中，开关单元3设置在逆变器的直流部分中。在本发明中，电容器1通过开关单元3连接在直流电源2的正电极和负电极之间，以及恒压元件，其中当达到固定电压或更高电压时，电阻电流流动，并且两端之间的电压被限制到特定电压，并联连接到电容器1.在此，使用变阻器6，齐纳二极管7或雪崩二极管，或者可选地，齐纳二极管7和自断路半导体元件（IGBT，MOSFET等）等用作恒压元件。由于上述构造，构成功率转换装置的每个部件都被保护免受过电压的影响，从而避免了电容器1的电容和体积的增加。

5. 发明授权

EP2928061B1 POWER CONVERSION SYSTEM AND METHOD FOR CONTROLLING SAME 有权
标题翻译：电力转换系统及其控制方法
公开(公告)号：EP2928061B1
公开(公告)日：2018-01-10
申请号：EP13858200.2
申请日：2013-10-25
申请人： Fuji Electric Co., Ltd.
发明人： TOBA Akio
IPC分类号： H02M7/5387 , H02M3/158 , H02M1/00
CPC分类号： H02P6/14 , H02M3/1582 , H02M7/5387 , H02M2001/0067
摘要： A power conversion system includes a capacitor 30 which stores direct current power; an inverter 40, a pair of direct current terminals of which are connected to two ends of the capacitor 30 and to the alternating current terminals of which an alternating current motor 50 acting as a load is connected; an upper and lower arm portion 90 of which the connection point of semiconductor switches 91 and 92 connected in series is connected to the neutral point of the motor 50; a direct current power source 10 connected in parallel to the upper and lower arm portion 90; and a switch 100 connected between one of the direct current terminals of the inverter 40 and one end of the upper and lower arm portion 90, wherein the other direct current terminal of the inverter 40 is connected to the other end of the upper and lower arm portion 90. In a condition in which the switch 100 is turned off, the inverter 40 is caused to operate as a zero-phase converter, and the upper and lower arm portion 90 is switched, thus carrying out a buck-boost of the voltage of the direct current power source 10 and a drive of the motor 50 by the inverter 40 at the same time. By so doing, the need for a boost reactor is eliminated to achieve a reduction in the size of the whole system and a loss reduction, thus enhancing the degree of freedom of the direct current voltage of the inverter 40.

6. 发明公开

EP2894775A1 INTELLIGENT MODULE 有权
标题翻译： SMART模块
公开(公告)号：EP2894775A1
公开(公告)日：2015-07-15
申请号：EP12884135.0
申请日：2012-09-04
申请人： Fuji Electric Co., Ltd.
发明人： TOBA Akio , HACHISU Yasuaki
IPC分类号： H02M1/00
CPC分类号： H05K1/144 , H05K7/1432
摘要： There is provided an intelligent module, which has at least a switching element module, a drive circuit which drives switching elements, a control calculation circuit, a communication circuit, and a board power circuit, including a common section 100A in which printed substrates 120 and 130 on which circuit components 121 and 131 including the drive circuit, the control calculation circuit, and the communication circuit are mounted, and the switching element module 110 are integrally formed; and a customized section 200, separated from the common section 100A, wherein circuit components 211 including the board power circuit are mounted on a printed substrate 210 in compliance with customer specifications. By so doing, the common section formed of basic components and the customized section complying with customer specifications are separated from each other, thus enhancing versatility and mass productivity, enabling a reduction in cost.

7. 发明授权

EP2894775B1 INTELLIGENT MODULE 有权
公开(公告)号：EP2894775B1
公开(公告)日：2019-02-20
申请号：EP12884135.0
申请日：2012-09-04
申请人： Fuji Electric Co., Ltd.
发明人： TOBA Akio , HACHISU Yasuaki
IPC分类号： H05K7/14 , H05K1/14

8. 发明公开

EP2928061A1 POWER CONVERSION SYSTEM AND METHOD FOR CONTROLLING SAME 有权
标题翻译：电源转换器系统和方法及其控制
公开(公告)号：EP2928061A1
公开(公告)日：2015-10-07
申请号：EP13858200.2
申请日：2013-10-25
申请人： Fuji Electric Co., Ltd.
发明人： TOBA Akio
IPC分类号： H02M7/5387
CPC分类号： H02P6/14 , H02M3/1582 , H02M7/5387 , H02M2001/0067
摘要： A power conversion system includes a capacitor 30 which stores direct current power; an inverter 40, a pair of direct current terminals of which are connected to two ends of the capacitor 30 and to the alternating current terminals of which an alternating current motor 50 acting as a load is connected; an upper and lower arm portion 90 of which the connection point of semiconductor switches 91 and 92 connected in series is connected to the neutral point of the motor 50; a direct current power source 10 connected in parallel to the upper and lower arm portion 90; and a switch 100 connected between one of the direct current terminals of the inverter 40 and one end of the upper and lower arm portion 90, wherein the other direct current terminal of the inverter 40 is connected to the other end of the upper and lower arm portion 90. In a condition in which the switch 100 is turned off, the inverter 40 is caused to operate as a zero-phase converter, and the upper and lower arm portion 90 is switched, thus carrying out a buck-boost of the voltage of the direct current power source 10 and a drive of the motor 50 by the inverter 40 at the same time. By so doing, the need for a boost reactor is eliminated to achieve a reduction in the size of the whole system and a loss reduction, thus enhancing the degree of freedom of the direct current voltage of the inverter 40.

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