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    • 11. 发明专利
    • Controller of electric vehicle
    • 电动车控制器
    • JP2008172951A
    • 2008-07-24
    • JP2007004709
    • 2007-01-12
    • Mitsubishi Electric Corp三菱電機株式会社
    • KONO MASAKIKAKIZAKI NOBUYASU
    • H02P25/06
    • H02P25/06B60L15/005B60L15/025H02P23/14H02P2207/01Y02T10/643
    • PROBLEM TO BE SOLVED: To easily and surely calculate a motor constant of a linear electromagnetic actuator in a controller of an electric vehicle equipped with the linear electromagnetic actuator. SOLUTION: The controller includes: a power converter 5 for supplying AC power to a primary member of the linear electromagnetic actuator 4 at a variable voltage and a variable frequency; a voltage instruction means 8 for instructing an output voltage supplied to the linear electromagnetic actuator by the power converter; a current detection means 7 for detecting information on a current flowing between the power converter and the linear electromagnetic actuator; and a motor constant calculation means for calculating the motor constant of the linear electromagnetic actuator from the voltage information Vu obtained by the voltage instruction means and the current information Iu detected by the current detection means when the electric vehicle is deactivated by a deactivation signal. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:容易且可靠地计算配备有线性电磁致动器的电动车辆的控制器中的线性电磁致动器的电动机常数。 解决方案:控制器包括:功率转换器5,用于以可变电压和可变频率向线性电磁致动器4的主要部件提供AC电力; 电压指令装置8,用于指示由功率转换器提供给线性电磁致动器的输出电压; 用于检测关于在功率转换器和线性电磁致动器之间流动的电流的信息的电流检测装置7; 以及电动机常数计算装置,用于根据由电压指令装置获得的电压信息Vu和当电动车辆通过停用信号停用时由电流检测装置检测到的电流信息Iu来计算线性电磁致动器的电动机常数。 版权所有(C)2008,JPO&INPIT
    • 12. 发明专利
    • Vector control device of induction motor
    • 电感电机矢量控制装置
    • JP2006094646A
    • 2006-04-06
    • JP2004277709
    • 2004-09-24
    • Mitsubishi Electric Corp三菱電機株式会社
    • KONO MASAKI
    • H02P21/00H02P27/04
    • H02P21/12
    • PROBLEM TO BE SOLVED: To provide a vector-control device for an induction motor capable of obtaining stable rotation in a short adjusting time even in low-speed operation, since a SN ratio of an output voltage is raised and an calculation error of a primary angular frequency calculated value is reduced even if a rotational speed is low by a magnetic flux command value calculated by a circuit constant and an actual value of the induction motor. SOLUTION: This vector-control device of the induction motor includes a magnetic-flux command value calculator 11 for selecting the magnetic flux command value and outputting it on the basis of a torque command value Tmr inputted from an outside, the circuit constant of the induction motor and the actual value relating to the induction motor; and a vector controller 10 for controlling an inverter device 3 on the basis of the magnetic flux command value outputted from the magnetic-flux command value calculator 11 and the circuit constant of the induction motor 8. The magnetic-flux command value calculator 11 includes a magnetic-flux command value reverse calculation operating part 21 for calculating a magnetic-flux command operation value F2RB so that a voltage applied to the induction motor 8 becomes higher than a set value corresponding to an unstable region. COPYRIGHT: (C)2006,JPO&NCIPI
    • 解决的问题:即使在低速运转中,为了提供能够在短的调整时间内获得稳定旋转的感应电动机的矢量控制装置,由于输出电压的SN比升高,计算误差 即使通过由电路常数和感应电动机的实际值计算的磁通指令值来转速低,主角度频率计算值也减小。 解决方案:感应电动机的矢量控制装置包括:磁通指令值计算器11,用于选择磁通指令值,并根据从外部输入的转矩指令值Tmr输出,电路常数 和感应电动机的实际值; 以及用于根据从磁通指令值计算器11输出的磁通指令值和感应电动机8的电路常数控制逆变器装置3的矢量控制器10.磁通指令值计算器11包括: 用于计算磁通指令运算值F2RB的磁通指令值反向计算运算部21,使得施加到感应电动机8的电压高于与不稳定区域对应的设定值。 版权所有(C)2006,JPO&NCIPI
    • 14. 发明专利
    • Power conversion apparatus
    • 功率转换装置
    • JP2012115143A
    • 2012-06-14
    • JP2012042779
    • 2012-02-29
    • Mitsubishi Electric Corp三菱電機株式会社
    • KONO MASAKI
    • H02M7/48H02P27/06
    • PROBLEM TO BE SOLVED: To discharge a charge of a capacitor while damage of an element of a power converter is prevented and to realize miniaturization, to reduce weight and cost when a capacitor for energy accumulation to a power converter exceeds an overvoltage level.SOLUTION: An operation of a power converter 3 is stopped and a line breaker 4 is turned off by an overvoltage detection signal Sov from overvoltage detecting means 20 in accordance with overvoltage detection of a capacitor 5. When charge voltage Vc of the capacitor 5, which is detected by voltage detecting means 10, is larger than induced voltage Vm of a synchronous machine 2 and the overvoltage detection signal Vov is outputted, a switching element 7 is turned on by an overvoltage suppression signal Scc from an overvoltage suppression means 30 and the capacitor 5 is discharged. When current Iu flowing in the synchronous machine 2, which is detected by a current detecting means 16, is larger than a reference value Imax, the overvoltage suppression signal Scc is compulsorily interrupted, the switching element 7 is turned off and the discharge of the capacitor 5 is stopped.
    • 要解决的问题:为了在电力转换器的元件的损坏被阻止的同时放电电容器并且实现小型化,当用于能量累积到电力转换器的电容器超过过电压水平时,减轻重量和成本 。 解决方案:根据电容器5的过电压检测,通过来自过电压检测装置20的过电压检测信号Sov停止电力转换器3的动作,断路器4断开。当电容器的充电电压Vc 如图5所示,由电压检测单元10检测出的电压大于同步电机2的感应电压Vm,输出过电压检测信号Vov,开关元件7由过电压抑制单元30的过电压抑制信号Scc导通 并且电容器5被放电。 当由电流检测装置16检测到的在同步电机2中流动的电流Iu大于参考值Imax时,过压抑制信号Scc被强制中断,开关元件7截止,电容器的放电 5停止。 版权所有(C)2012,JPO&INPIT
    • 15. 发明专利
    • Power converter
    • 电源转换器
    • JP2009131130A
    • 2009-06-11
    • JP2007306964
    • 2007-11-28
    • Mitsubishi Electric Corp三菱電機株式会社
    • KONO MASAKIKITANAKA HIDETOSHI
    • H02P1/46H02M7/48H02P1/26H02P27/06
    • PROBLEM TO BE SOLVED: To provide a power converter that can effectively constrain torque shocks or large current arising in restarting the load, even if the configuration is simple and a low-cost microcomputer is used. SOLUTION: Voltage detection means 3a, 3b detect the terminal voltage across a load 7 driven by a power converter 1, and a voltage phase operating means 10 acquires the detected voltage value at a given sampling cycle for estimating the phase θ n+1 of the terminal voltage across the load 7 at the next phase control command timing. Subsequently, a phase control means 20 inputs the phase θ n+1 , estimated by the voltage phase operational means 10 as a phase control command value at restart of the load 7 to control the power converter 1. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:即使配置简单并且使用低成本的微型计算机,也可以提供能够有效地约束重启负载时产生的转矩冲击或大电流的电力转换器。 解决方案:电压检测装置3a,3b检测由功率转换器1驱动的负载7两端的端子电压,电压相位运算装置10以给定的采样周期获取检测电压值,以估计相位θ n + 1 。 随后,相位控制装置20将由电压相位运算装置10估计的相位θ n + 1 输入为负载7的重启时的相位控制指令值,以控制功率转换器1。 P>版权所有(C)2009,JPO&INPIT
    • 16. 发明专利
    • Constant measuring device of linear induction machine
    • 线性感应机恒定测量装置
    • JP2008306904A
    • 2008-12-18
    • JP2007154462
    • 2007-06-11
    • Mitsubishi Electric Corp三菱電機株式会社
    • KANEHARA YOSHIHIKOKONO MASAKINAGATAKI YOSHIHIROTODA TATSUYAOGAKE TADAO
    • H02P25/06
    • PROBLEM TO BE SOLVED: To provide a constant measuring device of a linear induction machine by which an electric constant is measured for a short time by achieving a shutdown state when viewed from a primary circuit, without restraining a secondary conductor. SOLUTION: The constant measuring device 6a includes a control circuit, a current detector 7, and a constant calculation unit. The control circuit controls a state of the linear induction machine 1a having the primary circuit 3, the secondary conductor 4, and a back yoke 5 so that the secondary conductor 4 may become the shutdown state when observed from the primary circuit 3, by supplying an ac voltage to the primary circuit 3, wherein at least two phases among three phases have a reverse phase relation in a predetermined feed frequency. The current detector detects a current flowing through the primary circuit 3. The constant calculation unit calculates at least one of secondary resistance, primary inductance, and mutual inductance of the linear induction machine 1a, from relations among the feed frequency, a supply voltage and a current value detected by the current detector 7. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供一种线性感应电机的恒定测量装置,通过该线性感应电机的恒定测量,通过在从初级电路观察时实现关闭状态而不会抑制次级导体,从而短时间内测量电常数。

      解决方案:恒定测量装置6a包括控制电路,电流检测器7和常数计算单元。 控制电路控制具有主电路3,次级导体4和后磁轭5的线性感应电动机1a的状态,使得当从初级电路3观察时,次级导体4可能变为关闭状态, 交流电压到主电路3,其中三相中的至少两相在预定馈电频率中具有反相位关系。 电流检测器检测流过主电路3的电流。常数计算单元根据馈电频率,电源电压和电源电压之间的关系,计算线性感应电动机1a的二次电阻,初级电感和互感中的至少一个 电流检测器7检测电流值。版权所有(C)2009,JPO&INPIT

    • 17. 发明专利
    • Rotor temperature calculating device of induction motor
    • 电机转子温度计算装置
    • JP2006280142A
    • 2006-10-12
    • JP2005098259
    • 2005-03-30
    • Mitsubishi Electric Corp三菱電機株式会社
    • KONO MASAKI
    • H02P21/00H02P27/04
    • PROBLEM TO BE SOLVED: To provide a rotor temperature calculation device of an induction motor capable of easily calculating rotor temperature. SOLUTION: The rotor temperature calculating device includes a secondary resistance correction value calculating means 12 which calculates slip frequency correction value due to temperature change of a secondary resistor of an induction motor 8; a secondary resistance estimated calculation means 13 which calculates a secondary resistance estimated value of an induction motor, based on the slip frequency correction value and d-axis current command value and q-axis current command value for vector control of the induction motor 8; and a rotor temperature calculating means which calculates a rotor temperature T2S using an equation (1): T2S=äR2S(235+θ 0 )/rθ 0 }-235, where the actual value of a secondary resistor at a reference temperature θ 0 °C is secondary resistance reference value rθ 0 and secondary resistance estimated value is R2S. COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:提供能够容易地计算转子温度的感应电动机的转子温度计算装置。 解决方案:转子温度计算装置包括:二次电阻校正值计算装置12,其计算由感应电动机8的次级电阻器的温度变化引起的滑差频率校正值; 基于感应电动机8的矢量控制的转差频率校正值和d轴电流指令值以及q轴电流指令值,计算感应电动机的二次电阻估计值的二次电阻推定运算单元13; 以及转子温度计算装置,其使用等式(1)计算转子温度T2S:T2S =äR2S(235 +θ 0 )/rθ 0 在基准温度θ<0℃下的次级电阻器的实际值是次级电阻基准值rθ 0 ,二次电阻估计值是R2S。 版权所有(C)2007,JPO&INPIT
    • 18. 发明专利
    • Motor controller
    • 电机控制器
    • JP2005006369A
    • 2005-01-06
    • JP2003164649
    • 2003-06-10
    • Mitsubishi Electric Corp三菱電機株式会社
    • KONO MASAKINEGORO HIDETO
    • H02P27/06H02P21/00H02P27/04H02P7/63
    • PROBLEM TO BE SOLVED: To provide a motor controller capable of detecting abnormal speed estimation with precision, which can be applied to an electric car controller for torque control based on a torque instruction. SOLUTION: The motor controller comprises a torque calculator 10 for calculating an output torque calculation value TF from the information such as a speed estimation value FMO, a subtracter 11 for calculating a deviation between a torque instruction PTR and the output torque calculation value TF, and a comparator 12 which compares a torque deviation ΔTF to a set value ΔTR and outputs an abnormal speed estimation detection signal FMFD if the former exceeds the latter. COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:提供一种能够精确地检测异常速度估计的电动机控制器,其可以应用于基于转矩指令的用于转矩控制的电动汽车控制器。 电动机控制器包括:扭矩计算器10,用于根据诸如速度估计值FMO的信息计算输出转矩计算值TF;计算转矩指令PTR与输出转矩计算值之间的偏差的减法器11; TF和比较器12,其将转矩偏差ΔTF与设定值ΔTR进行比较,如果前者超过后者,则输出异常速度估计检测信号FMFD。 版权所有(C)2005,JPO&NCIPI
    • 19. 发明专利
    • Control device for induction motor
    • 电感电机控制装置
    • JP2003309996A
    • 2003-10-31
    • JP2002109693
    • 2002-04-11
    • Mitsubishi Electric Corp三菱電機株式会社
    • YAMAZAKI HISANORIKANEHARA YOSHIHIKOTANIMOTO MASANORIKONO MASAKI
    • H02P27/06H02P7/63
    • PROBLEM TO BE SOLVED: To accurately obtain a free-running rotating direction by accurately extracting a ripple component, even if the actual resistance value changes due to temperature changes or the like. SOLUTION: A control device for an induction motor comprises a voltage command value generating means 5 for calculating current command value which is to be output from a current command value generating means 4 and a voltage command value from a current value to be output from a current detecting means 3; a power supply means 2 for supplying power to the motor by using the voltage command value from the means 5; a ripple-extracting means 6a for extracting ripple components, by differentiating the current value from the means 3 or the voltage command value from the means 5, when a DC current command value is output from the means 4 during free running of the motor; and a free-running state inferring means 7a for inferring the free-running state of the motor 1 from the relation between the frequency and the phase of the ripple components by using the output of the means 6a. COPYRIGHT: (C)2004,JPO
    • 要解决的问题:即使实际电阻值由于温度变化等而发生变化,为了通过精确地提取脉动分量来精确地获得自由运转的旋转方向。 解决方案:用于感应电动机的控制装置包括用于计算要从电流指令值产生装置4输出的电流指令值的电压指令值产生装置5和要输出的当前值的电压指令值 来自电流检测装置3; 电源装置2,用于通过使用来自装置5的电压指令值向电动机供电; 纹波提取装置6a,用于在马达自由运行期间从装置4输出DC电流指令值时,通过将装置3的电流值或装置5的电压指令值进行微分来提取纹波分量; 以及自由运行状态推断装置7a,用于通过使用装置6a的输出从脉动分量的频率和相位之间的关系推断电动机1的自由运行状态。 版权所有(C)2004,JPO
    • 20. 发明专利
    • Failure detector
    • 故障检测器
    • JP2009050059A
    • 2009-03-05
    • JP2007212202
    • 2007-08-16
    • Mitsubishi Electric Corp三菱電機株式会社
    • KONO MASAKIHATANAKA KEITAKANEHARA YOSHIHIKO
    • H02M7/48H02P27/06
    • PROBLEM TO BE SOLVED: To obtain a failure detector of simple construction capable of reliably detecting any failure in a drive control system for controlling driving of an alternating-current rotary machine by a power converter. SOLUTION: The failure detector detects any failure in a power converter 1 that includes a plurality of switching elements 8a to 8f and converts direct-current voltage into three-phase alternating-current voltage; an alternating-current rotary machine 2; and connecting means 3a to 3c that connect together the power converter 1 and the alternating-current rotary machine 2. The detector is provided with: current detecting means 4a, 4b provided in the connecting means 3b, 3c; a switching command generating means 5 that outputs a switching command signal to the switching elements 8a to 8f to apply voltage to all the three phases of the alternating-current rotary machine 2 and generates such a specific switching command signal that of the line-to-line voltages of three-phase voltage, two line-to-line voltages have an identical sign and the remaining one line-to-line voltage is 0; and a failure detecting means 6 that detects any failure based on the currents detected by the current detecting means 4a, 4b when the specific switching command signal is outputted. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:获得能够可靠地检测用于通过功率转换器控制交流旋转机械的驱动的驱动控制系统中的任何故障的简单结构的故障检测器。 解决方案:故障检测器检测包括多个开关元件8a至8f的功率转换器1中的任何故障,并将直流电压转换为三相交流电压; 交流旋转机械2; 以及将功率转换器1和交流旋转机械2连接在一起的连接单元3a〜3c。检测器设置有设置在连接单元3b,3c中的电流检测单元4a,4b, 向开关元件8a〜8f输出开关指令信号以向交流旋转机械2的全部三相施加电压的开关指令生成单元5,生成线 - 三相电压的线路电压,两条线对线电压具有相同的符号,其余一条线间电压为0; 以及故障检测装置6,当输出特定切换命令信号时,根据由电流检测装置4a,4b检测到的电流来检测任何故障。 版权所有(C)2009,JPO&INPIT