专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JP2008113501A Voltage-type inverter controller 有权
标题翻译：电压型逆变器控制器
公开(公告)号：JP2008113501A
公开(公告)日：2008-05-15
申请号：JP2006294636
申请日：2006-10-30
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： KONO MASAKI , KANEHARA YOSHIHIKO , YAMAMOTO TSUTOMU
IPC分类号： H02P3/18 , H02M7/00 , H02P21/00 , H02P27/04 , H02P27/06
摘要： PROBLEM TO BE SOLVED: To obtain a voltage-type inverter controller capable of stably executing re-start control of an AC electromechanical apparatus after stopping, without generating overcurrent or overvoltage. SOLUTION: A voltage command operating means 6 generates voltage commands Vd2, Vq2 for operation stop to reduce the residual voltage of an inducer 1, on the basis of the detection value of current supplied to the inducer 1, when a conversion operation of a power converter 2 is stopped. When a first stopping signal is input, a voltage command switching means 9 switches the command from the voltage commands Vd1, Vq1 for usual operation to the voltage command Vd2, Vq2. A stop delay means 8 gives the power converter 2 a second stopping signal, obtained by delaying the first stop signal by a predetermined time to make the power converter 2 stop. The power converter 2 continues conversion operation, in accordance with the voltage commands Vd2, Vq2 during a predetermined time period, immediately prior to stopping. The inducer 1 is driven in the direction of reducing the residual voltage; and when the power converter 2 stops its conversion operation, the inducer 1 goes into a state where the residual voltage is very small. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：获得能够在停止后稳定地执行AC机电装置的再起动控制的电压型逆变器控制器，而不产生过电流或过电压。解决方案：电压指令运算装置6基于提供给导频器1的电流检测值，产生用于运行停止的电压指令Vd2，Vq2，以减小导频器1的剩余电压，当转换运算功率转换器2停止。当输入第一停止信号时，电压指令切换装置9将用于常规操作的电压指令Vd1，Vq1的指令切换到电压指令Vd2，Vq2。停止延迟装置8给予功率转换器2第二停止信号，该第二停止信号是通过将第一停止信号延迟预定时间而获得的，以使功率转换器2停止。功率转换器2在停止之前的预定时间段期间根据电压指令Vd2，Vq2继续转换操作。引导器1沿着减小剩余电压的方向被驱动; 并且当电力转换器2停止其转换操作时，导通器1进入残留电压非常小的状态。版权所有（C）2008，JPO＆INPIT

2. 发明专利

JP2005192301A Controller for induction motor 有权
标题翻译：感应电动机控制器
公开(公告)号：JP2005192301A
公开(公告)日：2005-07-14
申请号：JP2003428765
申请日：2003-12-25
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： YAMAZAKI HISANORI , KONO MASAKI
IPC分类号： H02P27/06 , H02P21/00 , H02P27/04 , H02P7/63
摘要： PROBLEM TO BE SOLVED: To solve the problem of a device for detecting the rotational direction or the r.p.m. of an induction motor under free run state, wherein since a DC current is conventionally applied stepwise, pulse frequency of the ripple components of current and voltage being generated at that time is measured, such characteristics as that frequency is substantially proportional to the free run rotational speed are detected and the rotational direction is detected from the phase of each of two axial voltage components, variational period of ripple sign is slow in low speed regions and a long time is required for surely grasping it, and to provide a device for quickly detecting r.p.m. and the rotational direction, with high precision. SOLUTION: From a current flowing through an induction motor when a command value is applied from a voltage command output unit, the signal of frequency component lower than the frequency component dependent on the circuit time constant of the induction motor is extracted and then the rotational condition is detected from that signal. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了解决用于检测旋转方向或r.p.m的装置的问题。感应电动机在自由运行状态下，由于通常逐步施加直流电流，所以测量当时产生的电流和电压脉动分量的脉冲频率，这种特性如该频率基本上与自由运行旋转成正比检测速度，并从两个轴向电压分量中的每一个的相位检测旋转方向，在低速区域中波纹符号的变化周期较慢，并且需要长时间来确保其抓住，并提供用于快速检测的装置转和旋转方向，精度高。解决方案：从电压指令输出单元施加指令值时，从流过感应电动机的电流，提取低于感应电动机电路时间常数的频率成分的频率成分信号，然后取出从该信号检测转动条件。版权所有（C）2005，JPO＆NCIPI

3. 发明专利

JP2004350459A Control unit of induction motor 有权
公开(公告)号：JP2004350459A
公开(公告)日：2004-12-09
申请号：JP2003147062
申请日：2003-05-26
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： YAMAZAKI HISANORI , KONO MASAKI , NEGORO HIDETO
IPC分类号： H02P1/30 , H02P21/00 , H02P27/04 , H02P27/06 , H02P7/63
摘要： PROBLEM TO BE SOLVED: To provide a controller for an induction motor capable of detecting, with high accuracy and sufficient rapidity, the rotational frequency and rotational direction of the induction motor under a free running condition by shortening required detection time. SOLUTION: A current control loop is constituted on two fixed coordinates orthogonal to each other. When the induction motor 1 is under a running condition, a current command value for frequency detection is given, and a pulse signal superimposed with a current feedback value on the fixed coordinates is extracted. The pulse signal is converted on a rotating coordinates with a predetermined coordinate rotating frequency and the frequency of the pulse signal on the rotating coordinates is detected, thus determining the free-running rotational frequency and rotational direction. COPYRIGHT: (C)2005,JPO&NCIPI

4. 发明专利

JP2004274845A Controller of electric vehicle 有权
公开(公告)号：JP2004274845A
公开(公告)日：2004-09-30
申请号：JP2003060106
申请日：2003-03-06
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： KONO MASAKI , NEGORO HIDETO
IPC分类号： B60L9/18 , H02P5/74 , H02P21/00 , H02P27/04 , H02P7/74
CPC分类号： Y02T10/7241
摘要： PROBLEM TO BE SOLVED: To provide a controller of electric vehicle capable of reducing the size, with decreased number of current detecting means.
SOLUTION: The controller for electric vehicle performs vector control with a plurality of three-phase induction motors 2-5 driven by a variable voltage variable frequency inverter 1, that converts a DC power into arbitrary AC power. It comprises a first current detecting means 12 that detects the entire current of a plurality of induction motors 2-5; second current detecting means 14-17 for detecting the phase current of a prescribed single phase of each of induction motors 2-5; a torque command generating means 18 which generates a torque command value, by converting the current of each phase into an effective value; and then calculating a torque correction value from a deviation between a maximum current of the effective value and a minimum current of the effective value; and further subtracting the torque correction value from a reference torque value of the induction motors 2-5, and a torque control means 6 for instructing the variable voltage variable frequency inverter 1 with a torque signal, which makes the total current detected with the first current detecting means 14-17 agree with the torque command value.
COPYRIGHT: (C)2004,JPO&NCIPI

5. 发明专利

JP2004015949A Current detector for synchronous pwm power converter 有权
公开(公告)号：JP2004015949A
公开(公告)日：2004-01-15
申请号：JP2002168573
申请日：2002-06-10
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： YAMAZAKI HISANORI , NEGORO HIDETO , KONO MASAKI
IPC分类号： H02M7/48
摘要： PROBLEM TO BE SOLVED: To provide a current detector for a synchronous PWM power converter which can extract the fundamental wave components of a current without using a low pass filter. SOLUTION: This current detector is equipped with a power converting main circuit which applies voltage for driving AC power load, a voltage command value generating means which outputs the modulation percentage of voltage and the command value of a phase angle severally, a PWM control signal generation means which generates a PWM control signal based on the command value and outputs it to the power converting main circuit, a current detection means which detects the current supplied to the AC power load, and a sampling means which sample-holds the current detection value and outputs a first sample hold value. The sample holding means contains a voltage phase angle setting means where a specified phase angle to serve as sampling timing is set, and it sample-holds the current detection value with the timing of the command value of the phase angle equivalent to the set value of the specified phase angle. COPYRIGHT: (C)2004,JPO

6. 发明专利

JP2003324998A Electric vehicle controller 有权
标题翻译：电动车控制器
公开(公告)号：JP2003324998A
公开(公告)日：2003-11-14
申请号：JP2002125063
申请日：2002-04-26
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： KONO MASAKI
IPC分类号： B60L9/18 , H02P21/00 , H02P27/04
摘要： PROBLEM TO BE SOLVED: To obtain a controller of a speed sensorless vector control electric vehicle in which highly reliable stabilized operational characteristics can be attained by eliminating instability in the process from coasting to re-powering.
SOLUTION: A vehicle speed conversion rotor rotational frequency fvm being obtained by converting the output from a vehicle speed sensor 20 at a vehicle speed/frequency converting section 22, a rotor rotational frequency estimated value fr being outputted from a rotor rotational frequency operating section 10, and a slip frequency fs being outputted from a slip frequency operating section 14 are inputted and a limiter output frequency fm is outputted to an adder 12 based on the following decision logic. fm=b×fvm if fvm+a|fs| fr.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：为了获得可以通过消除过程中的不稳定性而从滑行到重新供电的速度无传感器矢量控制电动车辆的控制器，其中可以获得高度可靠的稳定的操作特性。解决方案：通过转换车速/频率转换部分22上的车速传感器20的输出而获得的车速转换转子转速fvm，从转子转速操作的转子转速输出的转子转速估计值fr 输入从转差频率操作部分14输出的转差频率fs，并且基于以下判定逻辑将限幅器输出频率fm输出到加法器12。 fm = b×fvm如果fvm + a | fs | fr。版权所有（C）2004，JPO

7. 发明专利

JP2003302413A Speed estimation device for rotating machine 审中-公开
标题翻译：旋转机速度估算装置
公开(公告)号：JP2003302413A
公开(公告)日：2003-10-24
申请号：JP2002105429
申请日：2002-04-08
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： KANEHARA YOSHIHIKO , KAITANI TOSHIYUKI , KONO MASAKI
IPC分类号： G01P3/44 , H02P5/00 , H02P21/00 , H02P23/00 , H02P27/04 , H02P29/00 , H02P5/28
摘要： PROBLEM TO BE SOLVED: To provide a speed estimation device for a rotating machine with improved stationary state accuracy and preventing mixing of noises. SOLUTION: The speed estimation device comprises a model deviation calculation means 2 which calculates a model deviation based on a voltage, a current and an estimated rotating angular velocity of the rotating machine, a rotating angular acceleration calculation means 10 which calculates an estimated rotating angular acceleration based on the model deviation, and a rotating angular velocity calculation means 11 which calculates an estimated rotating angular velocity based on the estimated rotating angular acceleration, outputs and feedbacks the estimated rotating angular acceleration to the model deviation calculation means 2. Thereby the stationary state accuracy of the device is improved and mixing of noises is prevented. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供一种具有改善的静止状态精度并防止噪声混合的旋转机器的速度估计装置。解决方案：速度估计装置包括：模型偏差计算装置2，其基于旋转机器的电压，电流和估计的旋转角速度计算模型偏差;旋转角加速度计算装置10，其计算估计的基于模型偏差的旋转角加速度，以及基于估计的旋转角加速度来计算推定旋转角速度的旋转角速度计算单元11输出并将估算出的旋转角加速度反馈给模型偏差运算单元2.由此，提高了器件的静态精度，防止了混合噪声。版权所有（C）2004，JPO

8. 发明专利

JP2010252412A Synchronous machine control unit for vehicle 有权
标题翻译：车用同步机控制单元
公开(公告)号：JP2010252412A
公开(公告)日：2010-11-04
申请号：JP2009095960
申请日：2009-04-10
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： KURAKI YASUSHIGE , KONO MASAKI , AZUMA SATOSHI
IPC分类号： H02P27/06 , B60L3/00 , H02P21/00 , H02P27/04
CPC分类号： Y02T10/642 , Y02T10/7241
摘要： PROBLEM TO BE SOLVED: To provide a synchronous machine control unit for vehicles that makes a control system for continuing an operation simpler than before even if temporarily stopping power supply under a high-speed operation or a deceleration operation, improves stability and responsiveness, and reduces costs.
SOLUTION: When power supply is stopped under the high-speed operation of a permanent magnet synchronous motor 11, a control means 20 continues weak field control such that an induced voltage of the permanent magnet synchronous motor 11 does not exceed a DC voltage of a capacitor 9 to an inverter 10, and performs torque control such that the operation continues smoothly. When the power supply is stopped under the deceleration operation of the permanent magnet synchronous motor 11, torque control is performed to the inverter 10 such that occurrence of brake torque continues, and control is performed such that power generated by the inverter 10 becomes zero. In this case, the control means 20 independently controls a d-axis current command and a q-axis current command each.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种用于车辆的同步机控制单元，即使在高速运行或减速操作下临时停止供电的情况下，使得用于继续操作的操作更简单的控制系统，提高了稳定性和响应性，并降低成本。解决方案：在永磁同步电动机11的高速运转下停止供电时，控制装置20继续进行弱磁场控制，使永磁同步电动机11的感应电压不超过直流电压的电容器9连接到逆变器10，并且执行转矩控制，使得操作顺利地继续。当在永磁同步电动机11的减速操作下停止供电时，对变频器10进行转矩控制，使得制动转矩的发生继续进行，并且进行控制，使得由逆变器10产生的电力变为零。在这种情况下，控制装置20分别独立地控制d轴电流指令和q轴电流指令。版权所有（C）2011，JPO＆INPIT

9. 发明专利

JP2010114969A Power conversion device 有权
标题翻译：电源转换器件
公开(公告)号：JP2010114969A
公开(公告)日：2010-05-20
申请号：JP2008283815
申请日：2008-11-05
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： KONO MASAKI , KITANAKA HIDETOSHI , HATANAKA KEITA
IPC分类号： H02P6/20 , H02P6/24 , H02P23/00
摘要： PROBLEM TO BE SOLVED: To provide a power conversion device wherein it is possible to reduce the capacitance of a capacitor located between a power converter and a switch means more than before, suppress fluctuation in the voltage of the capacitor, and reduce the size and weight of the power conversion device. SOLUTION: The power conversion device includes: a first capacitor 5 connected in parallel with a direct-current power supply 6; the power converter 2 that drives a synchronous machine 1; a second capacitor 3 connected in parallel with the direct current side of the power converter 2; the switch means 4 placed in the first capacitor 5 and the second capacitor 3; and a controlling means 9 that controls the power converter 2 based on the respective pieces of detection information from a speed detecting means 7 for detecting the speed of the synchronous machine 1 and a second voltage detecting means 8 for detecting the voltage of the second capacitor 3. The controlling means 9 keeps the switch means 4 off when the power converter 2 is at a stop. When the operation of the power converter 2 is started, it turns on the switch means 4 and simultaneously starts the power converter 2 and thereby controls an exciting current so that the terminal voltage of the synchronous machine 1 becomes equal to a predetermined value. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种功率转换装置，其中可以比以前更多地减小位于功率转换器和开关装置之间的电容器的电容，从而抑制电容器的电压的波动，并且减小功率转换装置的尺寸和重量。解决方案：电力转换装置包括：与直流电源6并联连接的第一电容器5; 驱动同步电机1的电力转换器2; 与电力转换器2的直流侧并联连接的第二电容器3; 放置在第一电容器5和第二电容器3中的开关装置4; 以及控制装置9，其基于来自用于检测同步电机1的速度的速度检测装置7的各个检测信息和用于检测第二电容器3的电压的第二电压检测装置8来控制功率转换器2 当电源转换器2停止时，控制装置9使开关装置4保持关闭。当电源转换器2的运行开始时，它接通开关装置4并同时启动电力转换器2，从而控制励磁电流，使得同步电机1的端电压变为等于预定值。版权所有（C）2010，JPO＆INPIT

10. 发明专利

JP2009017737A Power converting unit of electric motor car 有权
标题翻译：电动车动力转换装置
公开(公告)号：JP2009017737A
公开(公告)日：2009-01-22
申请号：JP2007178992
申请日：2007-07-06
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： KONO MASAKI , HATANAKA KEITA
IPC分类号： B60L9/18 , B60L15/28
CPC分类号： H02P3/18 , B60L11/1803 , B60L15/20 , B60L2200/26 , B60L2210/20 , H02P27/08 , Y02T10/644 , Y02T10/645 , Y02T10/7005 , Y02T10/725 , Y02T10/7275
摘要： PROBLEM TO BE SOLVED: To obtain a power converting unit of electric motor car capable of operating the car as concurrent to a travelling command without gaining a speed when a power-travelling notch is turned off, and easily positioning the car. SOLUTION: The power converting unit of the electric motor car is equipped with a power converter 1 for converting DC power to AC power, an AC motor 2 driven by the AC power outputted from the power converter 1 to operate the electric motor car, a main controller 3 for outputting the travelling notch command to determine the addition-subtraction speed of the motor car, and a controller 4 for controlling the AC power outputted from the power converter 1 based on the travelling notch command. The controller 4 puts the AC power outputted from the power converter 1 to zero when the turning-off signal of the travelling notch command is inputted during travelling from the main controller 3. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了获得能够与行驶指令并行地操作轿厢的电动车辆的电力转换单元，而在动力行驶槽口关闭时不获得速度，并且容易地定位轿厢。电动汽车的电力转换单元配备有用于将直流电力转换为交流电力的电力转换器1，由从电力变换器1输出的交流电力驱动的交流电动机2，以操作电动汽车，用于输出用于确定电动车的加减速度的行驶档位命令的主控制器3，以及用于基于行驶档位命令控制从电力变换器1输出的交流电力的控制器4。控制器4在从主控制器3行驶期间输入行驶切换指令的关闭信号时，将从功率转换器1输出的交流电力设为零。（C）2009，JPO＆INPIT

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式