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1. 发明公开

EP2408103A1 CONTROLLER OF AC ROTATING MACHINE 失效
标题翻译：控制交流车床
公开(公告)号：EP2408103A1
公开(公告)日：2012-01-18
申请号：EP09841456.8
申请日：2009-03-11
申请人： Mitsubishi Electric Corporation
发明人： KATO, Sho , KIMPARA, Yoshihiko , KOBAYASHI, Takahiko , TERASHIMA, Satoru
IPC分类号： H02P21/00 , H02P27/04
CPC分类号： H02P21/08 , H02P21/22 , H02P21/24 , H02P31/00
摘要： To provide a control device for an AC rotating machine having a current limiting function of protecting the AC rotating machine and a driving unit such as an inverter from over-current, in which the control device has the reliable current limiting function in driving the AC rotating machine with known or unknown electrical constant. In the control device, a frequency correction value arithmetic means has an amplification gain computing element for computing an amplification gain based on an electrical constant of the AC rotating machine and an amplifier for computing a frequency correction arithmetic value based on the amplification gain computed by the amplification gain computing element and the current of the AC rotating machine, in which the frequency correction arithmetic value is output as a frequency correction value in a predetermined running state of the AC rotating machine.

2. 发明公开

EP2244369A1 POWER CONVERTING DEVICE 审中-公开
标题翻译：电力转换装置
公开(公告)号：EP2244369A1
公开(公告)日：2010-10-27
申请号：EP08711181.1
申请日：2008-02-13
申请人： Mitsubishi Electric Corporation
发明人： KONO, Masaki , KOBAYASHI, Takahiko , HATANAKA, Keita
IPC分类号： H02M7/48
CPC分类号： H02M7/53875 , B60L9/005 , B60L2200/26 , H02M5/458 , H02M2001/0022
摘要： In a conventional electrical power conversion apparatus, a control microprocessor performs a control for eliminating or curbing a beat phenomenon, so that a control delay occurs because computing time is required in the control microprocessor. Because of the control delay, it is not possible to obtain an effect of sufficiently reducing a current ripple and torque pulsation. In addition, in an electric train in which a frequency of an AC power source is changed over while the train is running, it is required for a method of detecting a ripple component by a band-pass filter that a plurality of band-pass filters are provided and then the changeover is performed depending on the power source frequency, resulting in difficulties to take countermeasures. An electrical power conversion apparatus according to the present invention stores DC voltage values at predetermined sampling time-points going back from the latest, and predicts a DC voltage estimate value for a predetermined elapse time from the latest sampling time-point using the stored DC voltage values, whereby using the predicted DC voltage estimate value, an amplitude and/or a frequency of AC power that an inverter outputs is controlled so as to curb variation of the AC power that the inverter outputs, due to a ripple caused on the DC side of the inverter.
摘要翻译：在传统的电力转换设备中，控制微处理器执行用于消除或抑制节拍现象的控制，从而由于控制微处理器中需要计算时间而发生控制延迟。由于控制延迟，不可能获得充分减小电流脉动和转矩脉动的效果。另外，在列车行驶期间交流电源的频率被切换的电车中，需要一种通过带通滤波器检测脉动分量的方法，即多个带通滤波器然后根据电源频率进行转换，导致难以采取对策。根据本发明的电力转换设备存储在最近的预定采样时间点处的DC电压值，并且使用存储的DC电压从最近的采样时间点预测经过预定经过时间的DC电压估计值值，通过使用预测的直流电压推定值，控制逆变器输出的交流电力的振幅和/或频率，以抑制逆变器输出的交流电力的变动，这是由于在直流侧产生的波动的逆变器。

3. 发明授权

EP2079158B1 POWER CONVERTER 有权
标题翻译：电源转换器
公开(公告)号：EP2079158B1
公开(公告)日：2016-06-22
申请号：EP06822709.9
申请日：2006-10-31
申请人： Mitsubishi Electric Corporation
发明人： KOBAYASHI, Takahiko , KIMPARA, Yoshihiko , YOSHIMURA, Manabu
IPC分类号： H02M7/48 , H02M7/537 , H02M7/5395 , H02P27/08
CPC分类号： H02P27/08 , H02M7/48 , H02M7/5395 , H02M2001/0009

4. 发明公开

EP2079158A1 POWER CONVERTER 有权
标题翻译： LEISTUNGSUMRICHTER
公开(公告)号：EP2079158A1
公开(公告)日：2009-07-15
申请号：EP06822709.9
申请日：2006-10-31
申请人： Mitsubishi Electric Corporation
发明人： KOBAYASHI, Takahiko , KIMPARA, Yoshihiko , YOSHIMURA, Manabu
IPC分类号： H02M7/48 , H02M7/537
CPC分类号： H02P27/08 , H02M7/48 , H02M7/5395 , H02M2001/0009
摘要： For providing an electric power converter capable of outputting an AC power just as an AC power command from an electric-power conversion unit by accurately correcting a voltage error caused by a dead time near a zero cross point of an output current, a voltage-command correction unit provided between the electric-power conversion unit and a voltage-command calculation unit provides a predetermined current range including the zero level for the detected output current, and, at a first clock time when the output current enters from outside to inside of the current range, sets a clock time for switching the polarity of the correction voltage that corrects the AC voltage command calculated and output by the voltage-command calculation unit to the zero cross timing of the output current based on the first clock time and the frequency f (and furthermore, the output current), that is, switches the polarity of the correction voltage to correct the voltage error caused by the dead time at the zero cross point of the output current, thereby making a configuration capable of correcting the AC voltage command with the correction voltage with the same polarity as the polarity of the output current around the zero cross point of the output current.
摘要翻译：为了提供能够通过精确地校正由输出电流的零交叉点附近的死区时间引起的电压误差，能够从电力转换单元输出作为交流电力指令的交流电力的电力转换器，电压指令设置在电力转换单元和电压指令计算单元之间的校正单元提供包括检测到的输出电流的零电平的预定电流范围，并且在输出电流从外部到内部进入的第一时钟时间电流范围，基于第一时钟时间和频率f，设定用于将校正电压的极性切换到计算出并由电压指令计算单元输出的交流电压指令的时钟时间到输出电流的零交叉定时（此外，输出电流），即，切换校正电压的极性，以校正由于死区时间引起的电压误差输出电流的零交叉点，从而使得能够以与输出电流的零交叉点周围的输出电流的极性相同极性的校正电压校正AC电压命令的配置。

5. 发明公开

EP3553935A1 POWER CONVERSION DEVICE 有权
公开(公告)号：EP3553935A1
公开(公告)日：2019-10-16
申请号：EP16923739.3
申请日：2016-12-12
申请人： Mitsubishi Electric Corporation
发明人： KOBAYASHI, Takahiko , KUSUBE, Shinsaku , WATABU, Kazuyoshi
IPC分类号： H02M7/48 , H02M1/12
摘要： A power conversion device includes a filter unit including an active noise canceler including an active element reducing low frequency components contained in common mode noise of noise and lower than a predetermined threshold frequency, and a passive filter including a passive element reducing normal mode noise of the noise and high frequency components contained in the common mode noise of the noise and equal to or higher than the threshold frequency. The active noise canceler includes a choke coil having a primary winding wound around a conductor to which a first alternating current power is supplied and a secondary winding outputting a current depending on a magnetic flux generated by the primary winding, a filter circuit reducing at least a high frequency region of the current of the secondary winding, an amplifier circuit amplifying output of the filter circuit and securing a required amount of the current, and a current injection circuit provided between the choke coil and an inverter unit, and injecting output of the amplifier circuit to each phase of the first alternating current power.

6. 发明公开

EP3505920A1 CAPACITANCE DETECTION DEVICE AND POWER CONVERSION DEVICE 有权
公开(公告)号：EP3505920A1
公开(公告)日：2019-07-03
申请号：EP17845820.4
申请日：2017-06-08
申请人： Mitsubishi Electric Corporation
发明人： TAMIDA, Taichiro , INOUE, Takahiro , HASHIMOTO, Takashi , IWATA, Akihiko , KOYAMA, Shuhei , KOBAYASHI, Takahiko
IPC分类号： G01N27/22 , G01R27/26 , G01F23/26
摘要： Provided is an electrostatic capacitance detection device including: an electrode pair including a pair of electrodes, the electrode pair being arranged inside a compressor configured to compress refrigerant; a capacitor being connected in series to the electrode pair; an inverter having one of power lines connected to one end of series-connected electrode pair and capacitor, and is configured to drive the compressor, the power lines being used for driving the compressor; and a voltage detecting unit configured to measure a voltage between the pair of electrodes of the electrode pair.

7. 发明公开

EP2154777A1 POWER CONVERSION SYSTEM 审中-公开
标题翻译： ENERGIEWANDLUNGSSYSTEM
公开(公告)号：EP2154777A1
公开(公告)日：2010-02-17
申请号：EP07742617.9
申请日：2007-04-27
申请人： Mitsubishi Electric Corporation
发明人： KONO, Masaki , KOBAYASHI, Takahiko , HATANAKA, Keita
IPC分类号： H02M7/48 , H02P27/06
CPC分类号： H02M7/53871 , H02M5/458
摘要： A power conversion system includes a first power converter 1 for converting AC to DC, a second power converter 2 for converting DC to AC, current detecting means 4 for detecting output current of the second power converter 2, pulsation detecting means 5 for detecting a pulsating component associated with the conversion from AC to DC of the first power converter from a pulsating component contained in at least any one of effective power, power and apparent power of the second power converter 2, voltage correcting means 6 for outputting a correction amount for correcting at least any one of the phase, frequency and amplitude of a voltage to be output from the second power converter 2 on the basis of the pulsating component obtained from the pulsation detecting means 5, and voltage control means 7 for outputting a voltage instruction to be output from the second power converter 2 on the basis of the correction amount obtained from the voltage correcting means 6, wherein the second power converter 2 converts DC to AC on the basis of the voltage instruction obtained from the voltage control means 7.
摘要翻译：电力转换系统包括用于将AC转换为DC的第一电力转换器1，用于将DC转换为AC的第二电力转换器2，用于检测第二电力转换器2的输出电流的电流检测装置4，用于检测脉动的与从第二功率转换器2的有效功率，功率和视在功率中的至少任一个中包含的脉动分量到第一功率转换器的从AC到DC的转换相关联的组件，用于输出用于校正的校正量的电压校正装置6 基于从脉动检测装置5获得的脉动分量，从第二功率转换器2输出的电压的相位，频率和振幅中的至少一个，以及用于输出电压指令的电压控制装置7 基于从电压校正装置6获得的校正量从第二功率转换器2输出，其中第二功率c 转换器2基于从电压控制装置7获得的电压指令将DC转换成AC。

8. 发明授权

EP3421902B1 AIR CONDITIONING DEVICE 有权
公开(公告)号：EP3421902B1
公开(公告)日：2020-04-22
申请号：EP16891433.1
申请日：2016-02-24
申请人： Mitsubishi Electric Corporation
发明人： TANIGUCHI, Yoshihiro , TAKATA, Shigeo , KUSUBE, Shinsaku , KOBAYASHI, Takahiko , SHINOZAKI, Kazuyoshi
IPC分类号： F25B1/00 , F24F1/24 , F25B31/00 , H01L23/00

9. 发明公开

EP3421902A1 AIR CONDITIONING DEVICE 有权
公开(公告)号：EP3421902A1
公开(公告)日：2019-01-02
申请号：EP16891433.1
申请日：2016-02-24
申请人： Mitsubishi Electric Corporation
发明人： TANIGUCHI, Yoshihiro , TAKATA, Shigeo , KUSUBE, Shinsaku , KOBAYASHI, Takahiko , SHINOZAKI, Kazuyoshi
IPC分类号： F25B1/00 , F24F1/24
CPC分类号： F24F1/24 , F25B1/00 , F25B31/006 , H01L24/00
摘要： A refrigerant cooler disposed in a refrigerant circuit of a refrigeration cycle has a heat rejecting plate and a heat rejecting pipe through which refrigerant flows, the heat rejecting pipe has a refrigerant inlet pipe, a refrigerant outlet pipe, and at least one bent portion connecting the refrigerant inlet pipe and the refrigerant outlet pipe, a component of a power conversion device is in surface contact with one surface of the heat rejecting plate, the heat rejecting pipe is in surface contact with the other surface of the heat rejecting plate, and a path of a heat source side heat exchanger is located above a contact portion between the refrigerant cooler and the component of the power conversion device.

10. 发明授权

EP2151916B1 POWER CONVERTER 有权
公开(公告)号：EP2151916B1
公开(公告)日：2013-09-18
申请号：EP08764741.8
申请日：2008-05-27
申请人： Mitsubishi Electric Corporation
发明人： KAWAMOTO, Syoichi , ITO, Daisuke , KITANAKA, Hidetoshi , HATANAKA, Keita , YAMASAKI, Hisanori , KONO, Masaki , KOBAYASHI, Takahiko
IPC分类号： H02M7/48 , B60L11/00 , H02M7/487 , H02M7/5387 , H02P21/08 , H02M1/00
CPC分类号： H02M7/53875 , B60L11/00 , B60L2200/26 , H02M7/487 , H02M2001/0022 , H02P21/09 , Y02T10/643

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