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    • 4. 发明授权
    • Magnetic-pole position detecting apparatus for a synchronous motor
    • 用于同步电动机的磁极位置检测装置
    • US06400118B2
    • 2002-06-04
    • US09799691
    • 2001-03-07
    • Yoshihiko KinparaToshiyuki Kaitani
    • Yoshihiko KinparaToshiyuki Kaitani
    • H02P618
    • H02P6/18
    • A magnetic-pole position detecting apparatus for a synchronous motor includes an arithmetic section outputting six voltage vectors having equal amplitudes and equal-interval phases to a circuit section as a voltage vector command. The circuit section applies the voltage vectors to a synchronous motor, outputs a trigger signal to a detection section each time after finishing the application of each voltage vector, and detects each phase. Thereafter, the arithmetic section calculates and outputs magnetic-pole positions at every 60/(2k) degrees (where k is a natural number based on the detection current. Each voltage vector is applied for a time period sufficient for each phase winding to be magnetically saturated in an order so that the phases of each voltage vector either increase monotonically or decrease monotonically. Tn detecting the magnetic-pole positions, the arithmetic section generates an added current value that is a result of an adition of current values for each combination of every 180-degree different phases from among current values that are in phase with the voltage vectors. The arithmetic section specifies magnetic-pole positions based on the added current values.
    • 用于同步电动机的磁极位置检测装置包括:向电路部分输出具有相等振幅和等间隔相位的六个电压矢量作为电压矢量指令的运算部。 电路部分将电压矢量应用于同步电动机,在每个电压矢量的施加完成之后每次将检测部分输出触发信号,并检测每个相位。 此后,运算部以60 /(2k)度(k为基于检测电流的自然数)计算输出磁极位置,将每个电压矢量施加足够的时间,使每个相绕组成为磁性 饱和,使得每个电压矢量的相位单调增加或单调减小,Tn检测磁极位置时,运算部分生成一个相加的电流值,该电流值是每个组合的当前值的结果 与电压矢量相同的电流值之间有180度的不同相位,运算部分根据加上的电流值来指定磁极位置。
    • 6. 发明授权
    • Induction motor controller
    • 感应电动机控制器
    • US6066934A
    • 2000-05-23
    • US171569
    • 1998-10-21
    • Toshiyuki KaitaniTetuaki NaganoAkira ImanakaYasuhiro Shiraishi
    • Toshiyuki KaitaniTetuaki NaganoAkira ImanakaYasuhiro Shiraishi
    • H02P21/00H02P21/14H02P23/08H02P27/08H02P7/63
    • H02P27/08H02P21/16H02P23/08
    • The invention is an induction motor controller for measuring electrical constants of a polyphase induction motor (102) by supplying test power thereto and controlling driving of the polyphase induction motor with a polyphase inverter (105) by using parameters for controlling driving of a result of the measurement. This controller has a first computing means (106) for computing secondary winding resistance R2 as well as leakage inductance L corresponding to each of test conditions provided with test power having three different frequencies f; a second computing means (107) for obtaining a rational function by substituting the secondary winding resistance R2 as well as leakage inductance L corresponding to each of the test conditions in the rational function including a quadratic equation of a frequency f with the secondary winding resistance R2 as a denominator and the leakage inductance L as a numerator and computing the secondary winding resistance R2 as well as leakage inductance L by substituting a desired secondary slip frequency in this obtained rational function.
    • PCT No.PCT / JP97 / 00752 Sec。 371日期:1998年10月21日 102(e)日期1998年10月21日PCT 1997年3月11日PCT公布。 出版物WO98 / 40964 日期1998年9月17日本发明是一种感应电动机控制器,用于通过向多相感应电动机(102)提供测试电力来测量多相感应电动机(102)的电常数,并通过使用用于控制驾驶的参数来控制多相异步电动机的驱动 的测量结果。 该控制器具有第一计算装置(106),用于计算次级绕组电阻R2以及与提供有具有三个不同频率f的测试功率的每个测试条件相对应的漏电感L; 第二计算装置(107),用于通过用次级绕组电阻R2代替次级绕组电阻R2以及与包括次级绕组电阻R2的频率f的二次方程的有理函数中的每个测试条件相对应的漏电感L来获得有理函数 作为分母,漏电感L作为分子,通过在该获得的有理函数中代替期望的次滑差频率来计算次级绕组电阻R2以及漏电感L。
    • 8. 发明申请
    • MOTOR CONTROL APPARATUS AND CONTROL METHOD THEREOF
    • 电机控制装置及其控制方法
    • US20130193895A1
    • 2013-08-01
    • US13811539
    • 2010-07-26
    • Tomohiro NoguchiToshiyuki Kaitani
    • Tomohiro NoguchiToshiyuki Kaitani
    • H02P29/02
    • H02P29/032
    • The second torque value and a motor speed detected from the motor in operation are compared to an upper limit and lower limit of torque tolerance which is obtained based on the third torque value. Accordingly, if the third torque value exceeds the upper limit or underruns the lower limit of the torque tolerance, the motor is stopped in accordance with a difference between the third torque value and the torque tolerance. Consequently, since abnormality of the motor can be promptly and accurately detected within an entire speed range including a lower speed range, it is effective for protecting the motor or the machine equivalent of a load for the motor.
    • 将从操作中的电动机检测到的第二转矩值和电动机速度与基于第三转矩值获得的转矩公差的上限和下限进行比较。 因此,如果第三转矩值超过上限或者不利于转矩公差的下限,则根据第三转矩值和转矩公差之间的差来停止电动机。 因此,由于可以在包括较低速度范围的整个速度范围内迅速且准确地检测电动机的异常,所以有效地保护电动机或与电动机相当的负载。
    • 9. 发明申请
    • Inverter Device
    • 变频器
    • US20090052209A1
    • 2009-02-26
    • US11884266
    • 2006-12-15
    • Toshiyuki KaitaniSatoshi Azuma
    • Toshiyuki KaitaniSatoshi Azuma
    • H02M5/458
    • H02M7/53875H02M2001/0022Y10T307/625
    • An inverter device includes a converter circuit that rectifies a first alternating current output from a power supply to generate a rectified current, a capacitor that stores therein the rectified current and outputs a direct current based on the rectified current, and an inverter circuit that converts the direct current into a second alternating current for driving a load. Moreover, a voltage control unit generates and outputs, during a period when any one of an instantaneous power cut and an instantaneous voltage drop occurs in the power supply, a first current command based on a voltage of the capacitor and a second current command; and a current control unit generates and outputs, based on the first current command, the second current command for controlling the inverter circuit to output the second alternating current.
    • 逆变器装置包括:转换器电路,对从电源输出的第一交流电进行整流以产生整流电流;电容器,其中存储整流电流,并输出基于整流电流的直流电;以及逆变器电路, 直流电流进入用于驱动负载的第二交流电流。 此外,电压控制单元在电源中发生瞬时断电和瞬时电压降中的任何一个的时段期间产生并输出基于电容器的电压的第一电流指令和第二电流指令; 并且电流控制单元基于第一电流命令产生并输出用于控制逆变器电路以输出第二交流电流的第二电流指令。
    • 10. 发明申请
    • DEVICE FOR ESTIMATING POLE POSITION OF SYNCHRONOUS MOTOR
    • 用于估计同步电机的位置的装置
    • US20070018605A1
    • 2007-01-25
    • US10554553
    • 2003-07-16
    • Akira SatakeYoshihiko KinparaToshiyuki Kaitani
    • Akira SatakeYoshihiko KinparaToshiyuki Kaitani
    • H02P1/46
    • H02P21/00H02P6/18H02P25/089H02P25/098
    • An influence resulting from double saliency of an electric motor, i.e., an influence of a deviation of the axis of an alternating current due to a rotor magnetic pole position θ on the estimation of a magnetic pole position, is eliminated, and, in particular, the magnetic pole position of double saliency electric motor can be estimated with high precision. To this end, an alternating voltage impression section impresses an alternating voltage on an electric motor, a current detection section detects a motor current, a reference direction generation section outputs an instantaneous reference direction θ′ from a rotor magnetic pole position θ of the electric motor, a vector conversion section separates the detected current into a parallel component and a quadrature component with respect to the reference direction θ′, and a magnetic pole position estimation section estimates actual rotor magnetic pole position θ of the electric motor based on at least one of the parallel component and the quadrature component of the current.
    • 消除了由电动机的双重显着性引起的影响,即由于转子磁极位置θ引起的交流电流轴的偏差对磁极位置的估计的影响,特别地, 可以高精度地估计双凸极电机的磁极位置。 为此,交流电压压印部分对电动机施加交流电压,电流检测部分检测电动机电流,参考方向产生部分从电动机的转子磁极位置θ输出瞬时参考方向θ' 矢量转换部分将检测到的电流相对于参考方向θ'分离成并联分量和正交分量,并且磁极位置估计部基于以下中的至少一个来估计电动机的实际转子磁极位置θ: 电流的并联分量和正交分量。