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41. 发明授权

US5777447A Control apparatus for brushless DC motor 失效
标题翻译：无刷直流电机控制装置
公开(公告)号：US5777447A
公开(公告)日：1998-07-07
申请号：US646046
申请日：1996-05-07
申请人： Yoshiyuki Okano
发明人： Yoshiyuki Okano
IPC分类号： H02P6/06 , H02P21/06 , H02K17/32
CPC分类号： H02P6/06 , H02P21/06
摘要： A torque command value is calculated in response to a command. A torque current is calculated on the basis of the calculated torque command value. The torque current is to be driven through an armature winding of the brushless DC motor, and is in phase with an electrical angle of the brushless DC motor. Calculation is made as to a phase advance current to be driven through the motor armature winding. The phase advance current has a phase advance of 90.degree. with respect to the motor electrical angle. A target current is calculated from the calculated torque current and the calculated phase advance current. An actual current through the motor armature winding is controlled in response to the calculated target current. An upper limit of the phase advance current is calculated on the basis of at least one of a speed command and a rotational speed of the brushless DC motor. A determination is made as to whether or not the actual current through the motor armature winding follows the target current. When the actual current through the motor armature winding follows the target current, the phase advance current is decreased within a range having a lower limit equal to zero. When the actual current through the motor armature winding does not follow the target current, the phase advance current is increased within a range having an upper limit equal to the calculated upper limit.
摘要翻译：根据命令计算转矩指令值。基于计算出的转矩指令值计算转矩电流。转矩电流将通过无刷直流电动机的电枢绕组驱动，并与无刷直流电动机的电角同相。计算通过电动机电枢绕组驱动的相位提前电流。相位提前电流相对于电机电角度的相位提前90度。根据计算的转矩电流和计算出的相位超前电流计算目标电流。响应于计算的目标电流来控制通过电机电枢绕组的实际电流。基于无刷直流电动机的速度指令和转速中的至少一个来计算相位超前电流的上限。确定通过电动机电枢绕组的实际电流是否跟随目标电流。当通过电机电枢绕组的实际电流跟随目标电流时，相位提前电流在下限等于零的范围内减小。当通过电机电枢绕组的实际电流不符合目标电流时，相位提前电流在上限等于计算上限的范围内增加。

42. 发明授权

US5150029A Method and apparatus for controlling the magnetic flux of an induction motor 失效
标题翻译：用于控制感应电动机的磁通量的方法和装置
公开(公告)号：US5150029A
公开(公告)日：1992-09-22
申请号：US445675
申请日：1989-11-17
申请人： Eiji Watanabe , Tsugutoshi Ohtani
发明人： Eiji Watanabe , Tsugutoshi Ohtani
IPC分类号： G01R31/34 , G01R33/02 , H02P21/00 , H02P21/06 , H02P27/04
CPC分类号： H02P21/06
摘要： This invention relates to an induction motor magnetic flux operation method in a vector control device in which a primary current is supplied to the induction motor in response to an excitation current command value and a torque current command value and the frequency is controlled on the basis of the magnetic flux operated from the voltage and current applied on the motor, characterized in that, when the magnetic flux is operated on the basis of the voltage, current on the motor and a magnetic flux command signal by using a primary delay circuit, the time constant of the primary delay circuit is set equal to that of the secondary circuit of the motor. According to this invention, it is possible to minimize the phase error with respect to the true secondary magnetic flux included in the secondary magnetic flux value, which leads to an accurate torque control.

43. 发明授权

US5099185A Alternating current motor control method 失效
标题翻译：替代电流电机控制方法
公开(公告)号：US5099185A
公开(公告)日：1992-03-24
申请号：US598624
申请日：1990-10-15
申请人： Shinichi Kono , Hironobu Takahasi
发明人： Shinichi Kono , Hironobu Takahasi
IPC分类号： H02P23/00 , H02P21/06 , H02P25/02
CPC分类号： H02P21/06 , H02P25/03
摘要： An alternating current motor control method capable of preventing or reducing variations in motor output torque in a low speed motor operation.During a low speed operation of a motor (6), a combination of a second pulse coder (PC2) for detecting the rotational position of a motor (6) with high resolution and a second table (T2) storing therein current command determining sinusoidal data with high resolution is selected by a processor, serving as selection means (20) and switches (SW1, SW.sub.2), so that sinusoidal data of respective phases are read out from the second table in accordance with a primary phase angle (.theta.) of the motor, which is determined by an actual motor rotational speed detected in dependence on the number (FP2) of pulses supplied from the second pulse coder, and the drive of the motor is controlled in accordance with current commands of respective phases derived with high resolution on the basis of the sinusoidal data, thereby preventing variations in the motor output torque.
摘要翻译： PCT No.PCT / JP90 / 00166 Sec。 371 1990年10月15日第 102（e）1990年10月15日PCT PCT 1990年02月9日PCT公布。第WO90 / 09699号公报日期1990年8月23日。一种交流电动机控制方法，能够防止或减少低速电动机运行中电动机输出转矩的变化。在马达（6）的低速运转期间，用于检测高分辨率的马达（6）的旋转位置的第二脉冲编码器（PC2）和存储其中的电流指令确定正弦数据的第二表（T2）的组合具有高分辨率的处理器由用作选择装置（20）和开关（SW1，SW2）的处理器选择，使得根据第一相位角（θ）从第二表读出各相的正弦数据电动机，其由根据从第二脉冲编码器提供的脉冲数（FP2）检测的实际电动机转速确定，并且根据以高分辨率导出的各相的当前命令来控制电动机的驱动正弦数据的基础，从而防止电机输出转矩的变化。

44. 发明授权

US5083039A Variable speed wind turbine 失效
标题翻译：变速风力发电机
公开(公告)号：US5083039A
公开(公告)日：1992-01-21
申请号：US649567
申请日：1991-02-01
申请人： Robert D. Richardson , William L. Erdman
发明人： Robert D. Richardson , William L. Erdman
IPC分类号： F03D7/02 , F03D7/04 , F03D9/00 , H02J3/18 , H02J3/40 , H02P9/00 , H02P9/04 , H02P9/42 , H02P9/48 , H02P21/00 , H02P21/06
CPC分类号： F03D7/0272 , F03D7/0276 , F03D7/042 , F03D9/003 , H02J3/1842 , H02J3/1892 , H02J3/38 , H02J3/386 , H02J3/40 , H02P21/06 , H02P9/04 , H02P9/42 , H02P9/48 , F05B2220/706 , F05B2220/7064 , F05B2270/1016 , F05B2270/1032 , F05B2270/104 , F05B2270/20 , F05B2270/327 , F05B2270/328 , F05B2270/335 , H02M2007/53876 , H02P2101/15 , Y02E10/563 , Y02E10/723 , Y02E10/725 , Y02E10/763 , Y02E40/22
摘要： A variable speed wind turbine is disclosed comprising a turbine rotor that drives an AC induction generator, a power converter that converts the generator output to fixed-frequency AC power, a generator controller, and an inverter controller. The generator controller uses field orientation to regulate either stator currents or voltages to control the torque reacted by the generator. The inverter controller regulates the output currents to supply multi-phase AC power having leading or lagging currents at an angle specified by a power factor control signal.
摘要翻译：公开了一种变速风力涡轮机，其包括驱动AC感应发电机的涡轮转子，将发电机输出转换为固定频率AC电力的功率转换器，发电机控制器和逆变器控制器。发电机控制器使用场定向来调节定子电流或电压以控制发电机反应的转矩。逆变器控制器调节输出电流以提供具有由功率因数控制信号指定的角度的前导或滞后电流的多相AC电力。

45. 发明授权

US4958117A Frequency control based on sensing voltage fed to an induction motor 失效
标题翻译：基于感应电压馈送到感应电动机的频率控制
公开(公告)号：US4958117A
公开(公告)日：1990-09-18
申请号：US414684
申请日：1989-09-29
申请人： Russel J. Kerkman , Brian J. Seibel
发明人： Russel J. Kerkman , Brian J. Seibel
IPC分类号： H02H7/085 , H02P21/06
CPC分类号： H02P21/06 , H02H7/0855
摘要： A frequency control method is incorporated in a motor drive to prevent overcurrent trips when an induction motor is subjected to impact loads or reconnection under load. The drive includes a current regulator loop to control stator current and a voltage regulator loop to control the command to the current regulator. Motor voltage is sensed and a voltage error is developed. This voltage error is processed through a proportional-integral control loop which controls an operating frequency signal to the current regulator. The drive responds during current limit conditions to reduce operating frequency and speed until the current limit conditions subside. The motor can then be re-accelerated up to the desired operating speed.

46. 发明授权

US4707651A Voltage-controlled field-oriented induction motor control system 失效
标题翻译：电压控制磁场感应电动机控制系统
公开(公告)号：US4707651A
公开(公告)日：1987-11-17
申请号：US888907
申请日：1986-07-22
申请人： Colin D. Schauder
发明人： Colin D. Schauder
IPC分类号： H02P27/04 , H02P21/06 , H02P5/40
CPC分类号： H02P21/06
摘要： An induction motor drive control system is controlled according to a torque demand and a rotor flux amplitude demand while using only a shaft position feedback and providing an open loop equivalent of a vector voltage control approach to the control of the induction motor.
摘要翻译：感应电动机驱动控制系统根据转矩需求和转子磁通幅度需求进行控制，同时仅使用轴位置反馈，并向感应电动机的控制提供矢量电压控制方式的开环等效。

47. 发明授权

US4558269A Induction motor drive apparatus 失效
标题翻译：感应电动机驱动装置
公开(公告)号：US4558269A
公开(公告)日：1985-12-10
申请号：US453895
申请日：1982-12-14
申请人： Hiroshi Ishida , Yoshiki Fujioka , Naoto Ota
发明人： Hiroshi Ishida , Yoshiki Fujioka , Naoto Ota
IPC分类号： H02P21/06 , H02P23/00 , H02P5/34
CPC分类号： H02P23/0077 , H02P21/06
摘要： Disclosed is an induction motor drive apparatus which produces three-phase current commands using a speed error (ER) between a speed command and an actual speed (n) for driving an induction motor (10) on the basis of the current commands. The induction motor drive apparatus receives the speed error (ER) and the actual speed (n) as input signals and generates, through digital processing, a first phase sinusoidal signal and a second phase sinusoidal signal shifted by 2.pi./3 from the first phase sinusoidal signal. The first and second sinusoidal signals are used for generating a phase current (i.sub.w) in a first and second phase currents (i.sub.u, i.sub.v) which are in turn used to generate a third phase current (i.sub.w) such that the first, second and third phase current commands will have a sum equal to zero.
摘要翻译： PCT No.PCT / JP82 / 00137 Sec。 371日期1982年12月14日第 102（e）1982年12月14日日期PCT提交1982年4月22日PCT公布。 WO 83/0392 PCT出版物日期：1983年11月10日。公开的是一种感应电动机驱动装置，其产生三相电流指令，使用速度指令和用于驱动感应电动机（10）的实际速度（n）之间的速度误差（ER）的当前命令。感应电机驱动装置接收速度误差（ER）和实际速度（n）作为输入信号，并通过数字处理产生从第一相位移位2π/ 3的第一相位正弦信号和第二相位正弦信号正弦信号。第一和第二正弦信号用于产生第一和第二相电流（iu，iv）中的相电流（iw），其相反地用于产生第三相电流（iw），使得第一，第二和第三相相电流命令的总和等于零。

48. 发明授权

US12068702B2 Electric motor control device 有权
公开(公告)号：US12068702B2
公开(公告)日：2024-08-20
申请号：US17920607
申请日：2020-05-19
申请人： Mitsubishi Electric Corporation
发明人： Masahiko Orii , Tatsuya Mori , Hiroko Ikeda , Toshihiro Matsunaga , Kenji Ikeda , Kenta Kubo
IPC分类号： H02P21/06 , H02P21/05 , H02P25/22
CPC分类号： H02P21/06 , H02P21/05 , H02P25/22
摘要： In an electric motor control device which controls rotation of an AC electric motor having two sets of three-phase windings and provided with a resolver having two systems by calculating voltage command values on dq axes, dq conversion of currents of first three-phase windings is performed using a first angle calculated from output of the first system of the resolver, and dq conversion of currents of second three-phase windings is performed using a second angle calculated from output of the second system of the resolver. With both d-axis current command values set at the same value, respective voltage command values on dq axes are calculated and respectively converted into voltage command values for voltage application to the first three-phase windings, using the first angle, and converted into voltage command values for voltage application to the second three-phase windings, using the second angle.

49. 发明授权

US11894786B2 Permanent-magnet synchronous machine control method and device, and permanent-magnet synchronous machine control system 有权
公开(公告)号：US11894786B2
公开(公告)日：2024-02-06
申请号：US17858864
申请日：2022-07-06
申请人： CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
发明人： Xiong Zheng , Xianxi Pan , Yu Luo , Zhimin Dan
IPC分类号： H02P21/06 , H02P21/05 , H02P6/10 , H02P21/22
CPC分类号： H02P21/05 , H02P6/10 , H02P21/22 , H02P2207/05
摘要： This application provides a permanent-magnet synchronous machine control method and device, and a permanent-magnet synchronous machine control system. The method includes: obtaining a d-axis current id and a q-axis current iq in a permanent-magnet synchronous machine control loop at a current moment; obtaining a fifth-order harmonic current id5th and a seventh-order harmonic current id7th in the d-axis current id in the permanent-magnet synchronous machine control loop at the current moment, and a fifth-order harmonic current iq5th and a seventh-order harmonic current iq7th in the q-axis current iq in the permanent-magnet synchronous machine loop at the current moment; determining a d-axis current idk+1 at a next moment in each switch state; determining a q-axis current iqk+1 at the next moment in each switch state based on the first current idk, the second current iqk, and the second voltage in each switch state; and determining a control policy of the permanent-magnet synchronous machine.

50. 发明公开

US20230155528A1 ELECTRIC MOTOR CONTROL DEVICE 审中-公开
公开(公告)号：US20230155528A1
公开(公告)日：2023-05-18
申请号：US17920607
申请日：2020-05-19
申请人： Mitsubishi Electric Corporation
发明人： Masahiko ORII , Tatsuya MORI , Hiroko IKEDA , Toshihiro MATSUNAGA , Kenji IKEDA , Kenta KUBO
IPC分类号： H02P21/06 , H02P21/05 , H02P25/22
CPC分类号： H02P21/06 , H02P21/05 , H02P25/22
摘要： In an electric motor control device which controls rotation of an AC electric motor having two sets of three-phase windings and provided with a resolver having two systems by calculating voltage command values on dq axes, dq conversion of currents of first three-phase windings is performed using a first angle calculated from output of the first system of the resolver, and dq conversion of currents of second three-phase windings is performed using a second angle calculated from output of the second system of the resolver. With both d-axis current command values set at the same value, respective voltage command values on dq axes are calculated and respectively converted into voltage command values for voltage application to the first three-phase windings, using the first angle, and converted into voltage command values for voltage application to the second three-phase windings, using the second angle.

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