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1. 发明专利

JP2011211796A Controller for synchronous motor 审中-公开
标题翻译：同步电机控制器
公开(公告)号：JP2011211796A
公开(公告)日：2011-10-20
申请号：JP2010075629
申请日：2010-03-29
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： TAKANO HIROMICHI , OHASHI TAKANORI , YONEMOTO SHINJI , YANADA TETSUO , MATSUMOTO YUTAKA
IPC分类号： H02P23/00 , H02P6/10
摘要： PROBLEM TO BE SOLVED: To suppress a speed ripple with an irregular amplitude by creating a correction for suppressing the speed ripple of a synchronous motor due to a cyclic disturbance, based on a preset parameter.SOLUTION: The switch 22 of a cyclic disturbance corrector 19 is switched off, and a constant speed command Nref is inputted to rotate the synchronous motor 4. At this time, a cyclic disturbance correction signal h(θ) is not supplied to an adder 6 from the cyclic disturbance corrector 19, and it operates in the state where a speed ripple caused by the cyclic disturbance Txst is not suppressed. In such a state, a PC23 for adjustment of a controller fetches and monitors a current command Iref, and finds a phase adjustment amount θofst, an order B, and an amplitude function f(θ) with a motor rotational position θ as a variable, and generates h(θ)=f(θ) sin(B θ+θ+ofst) as a cyclic disturbance correction signal h(θ), based on this parameter, and adds it to the adder 6.
摘要翻译：要解决的问题：基于预设参数，通过产生用于抑制由于循环扰动引起的同步电动机的速度纹波的校正来抑制具有不规则振幅的速度波动。解决方案：循环扰动校正器19的开关22 并且输入恒定速度指令Nref以使同步电动机4旋转。此时，循环扰动校正信号h（θ）不从循环扰动校正器19提供给加法器6，并且其操作在不会抑制由循环扰动Txst引起的速度波动的状态。在这种状态下，用于调节控制器的PC23提取并监视电流指令Iref，并且以电动机旋转位置θ为变量，求出相位调整量θofst，阶数B和振幅函数f（θ）并根据该参数生成h（θ）= f（θ）sin（Bθ+θ+ ofst）作为循环扰动校正信号h（θ），并将其加到加法器6。

2. 发明专利

JP2004334772A Positioning control method and device by motor 审中-公开
公开(公告)号：JP2004334772A
公开(公告)日：2004-11-25
申请号：JP2003133317
申请日：2003-05-12
申请人： Hitachi Industrial Equipment Systems Co Ltd , Hitachi Ltd , 株式会社日立産機システム , 株式会社日立製作所
发明人： NAGURA HIROKAZU , INABA HIROMI , YOSHIKAWA TOSHIFUMI , OHASHI TAKANORI , TAKANO HIROMICHI
IPC分类号： G05D3/12 , H02P5/00 , H02P29/00
摘要： PROBLEM TO BE SOLVED: To improve the stability of a positioning control system by eliminating the cause of a phase delay occurring in the positioning control system for preventing the phase delay and instability of the control system with increasing of the response of the positioning control system when the stiffness of a drive shaft 3 connecting a motor 1 and a load 4 is insufficient. SOLUTION: A high frequency region signal is obtained by passing a shaft position detection value θ M of the motor 1 through a low-pass filter 15, and a low frequency region signal is obtained by passing a position detection value θ L of the load 4 through a high-pass filter 16. A synthesized signal formed by adding up these signals is used as a feedback signal θ L_fb of the positioning controller 6. A position command value θ L ** and the position detection value θ L of the load are compared by a subtracter 24 to find out an axial torsion equivalent value, and by subtracting it from the position command value θ L ** , a corrected position command value θ L * is obtained. The stability in the high frequency region of the positioning control system is improved, and an overshoot and the following axial vibration at the time of position are reduced. COPYRIGHT: (C)2005,JPO&NCIPI

3. 发明专利

JP2002374692A Permanent magnet motor controller 审中-公开
标题翻译：永磁电机控制器
公开(公告)号：JP2002374692A
公开(公告)日：2002-12-26
申请号：JP2001181015
申请日：2001-06-15
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： OHASHI TAKANORI , SUGIURA MASAKI
IPC分类号： H02P6/16 , H02P21/00 , H02P27/04
摘要： PROBLEM TO BE SOLVED: To provide a permanent magnet motor controller, which can solve the conventional problem that preparation of another drive gear is required for performing adjustment to match the induced voltage of a motor and the magnetic-pole position signal, by rotating the motor by means of the driving gear for matching the magnetic-pole position signal and the position of the magnetic pole of the motor. SOLUTION: In this permanent magnet motor controller, a magnetic-pole positioning circuit is provided and the position of the magnetic pole of the motor matches the magnetic pole position signal, by rotating the position of the magnetic pole through excitation of the motor with a direct current or an alternating current and stopping the motor at a fixed position, by using a current control circuit originally contained in this controller. Consequently, the need of preparing another drive gear is eliminated from the conventional example. In addition, since the current control circuit contained in this controller is used, this controller is realized with a simple constitution.
摘要翻译：要解决的问题：提供一种永磁电动机控制器，其可以解决传统的问题，即通过使电动机旋转来执行调整以匹配电动机的感应电压和磁极位置信号所需的另一个驱动齿轮通过用于匹配磁极位置信号的驱动齿轮和电动机的磁极的位置。解决方案：在该永磁电动机控制器中，设置磁极定位电路，电动机磁极的位置与磁极位置信号相匹配，通过直接通过电动机的励磁旋转磁极的位置电流或交流电流，并通过使用最初包含在该控制器中的电流控制电路将电机停止在固定位置。因此，从传统示例中消除了制备另一驱动齿轮的需要。此外，由于使用包含在该控制器中的电流控制电路，所以以简单的结构实现该控制器。

4. 发明专利

JP2011200048A Power supply device and power supply system 有权
标题翻译：电源设备和电源系统
公开(公告)号：JP2011200048A
公开(公告)日：2011-10-06
申请号：JP2010065419
申请日：2010-03-23
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： ISHIGAKI TAKUYA , KANOUDA TAMAHIKO , OHASHI TAKANORI , WATABE TOMOHISA , SUGIURA MASAKI
IPC分类号： H02P27/06 , H02J7/34
CPC分类号： H02P23/14 , H02P27/06
摘要： PROBLEM TO BE SOLVED: To attain cost reduction, loss reduction, and high density of a power supply device which supplies electric power to an external device system which is equipped with a function of temporarily storing energy.SOLUTION: A voltage command value of an electricity-storing device is set lower by an amount equivalent to an energy amount stored outside temporarily. As a result, the move of energy is optimized and loss reduction and high density can be realized. The optimization of energy moving timing reduces voltage fluctuation width and leads to the reduction of the number of parts so that the cost reduction, loss reduction, and high density is realized.
摘要翻译：要解决的问题：为了实现具有临时存储能量的功能的向外部装置系统供电的电力供给装置的成本降低，损耗降低和高密度化。解决方案：电力的电压指令值储存装置被设定为相当于暂时存储在外部的能量的量的量。结果，能量的移动被优化，并且可以实现损耗降低和高密度。能量移动时间的优化降低了电压波动宽度，并且导致部件数量的减少，从而实现了成本降低，损耗降低和高密度。

5. 发明专利

JP2005094826A Speed controller and method for estimating pole position of synchronous motor 有权
标题翻译：速度控制器及同步电动机定位方法
公开(公告)号：JP2005094826A
公开(公告)日：2005-04-07
申请号：JP2003320798
申请日：2003-09-12
申请人： Hitachi Industrial Equipment Systems Co Ltd , Hitachi Ltd , 株式会社日立産機システム , 株式会社日立製作所
发明人： NAGURA HIROKAZU , INABA HIROMI , YOSHIKAWA TOSHIFUMI , OHASHI TAKANORI , SUGIURA MASAKI , TAKANO HIROMICHI
IPC分类号： H02P25/06 , H02P5/00 , H02P6/16 , H02P27/06 , H02P5/41
摘要： PROBLEM TO BE SOLVED: To provide a method for estimating the initial pole position of a synchronous motor by little number of times of operations for an estimated time. SOLUTION: The method for estimating the pole position of the synchronous motor includes a step of measuring q-axis current while changing a pole position error angle θ err , a step of obtaining the pole position error angle θ err when the q-axis current becomes the minimum according to a quadratic curve approximation by a least square method from data of about four points of the q-axis current to the error angle, and a step of correcting a position detection output θ E . Thus, since the estimation of the pole position error angle θ err is conducted by the quadratic curve approximation from relative data of limited θ err and iq * , an accurate pole position can be estimated by little number of times of operations. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种用于在估计时间内估计同步电动机的初始极位置几次操作次数的方法。＆lt; P＆gt;解决方案：用于估计同步电动机的极位置的方法包括在改变极位置误差角θ时测量q轴电流的步骤，获得极位置误差根据从q轴电流的大约四点到误差角的数据，根据通过最小二乘法的二次曲线近似，当q轴电流变为最小时，角度θ< 校正位置检测输出θ E 。因此，由于极限位置误差角θ的估计是通过二次曲线近似从有限的θ 和iq * ，可以通过少量的操作来估计精确的极点位置。版权所有（C）2005，JPO＆NCIPI

6. 发明专利

JP2004187432A Position control device for electric motor 有权
公开(公告)号：JP2004187432A
公开(公告)日：2004-07-02
申请号：JP2002353383
申请日：2002-12-05
申请人： Hitachi Industrial Equipment Systems Co Ltd , Hitachi Ltd , 株式会社日立産機システム , 株式会社日立製作所
发明人： NAGURA HIROKAZU , INABA HIROMI , YOSHIKAWA TOSHIFUMI , OHASHI TAKANORI , TAKANO HIROMICHI
IPC分类号： H02P29/00 , H02P5/00
摘要： PROBLEM TO BE SOLVED: To reduce the overshoot and the axial vibration of a position control device without causing the deterioration of disturbance suppression performance, and consequently to shorten a stabilization time. SOLUTION: In the position control device for an electric motor, axial torsional torque τ T_est is estimated by using a controlled axis model 3 from a position command value θ M ** inputted to the position control device from an outside device such as a host controller. Then, a position estimation value θ L_est of a load axis is estimated, and a post-correction position command value θ M * is calculated in accordance with the estimation of the position estimation value. By this correction, even if the position command value that abruptly changes is inputted from the host controller, the overshoot and the axial vibration consecutive thereto can be reduced. Consequently, the stabilization time can be shortened, too. COPYRIGHT: (C)2004,JPO&NCIPI

7. 发明专利

JP2004173410A Apparatus, method, and system for controlling motor 审中-公开
标题翻译：用于控制电机的装置，方法和系统
公开(公告)号：JP2004173410A
公开(公告)日：2004-06-17
申请号：JP2002335936
申请日：2002-11-20
申请人： Hitachi Industrial Equipment Systems Co Ltd , Hitachi Ltd , 株式会社日立産機システム , 株式会社日立製作所
发明人： NAGURA HIROKAZU , INABA HIROMI , YOSHIKAWA TOSHIFUMI , OHASHI TAKANORI , TAKANO HIROMICHI
IPC分类号： G05D3/12 , H02P5/00 , H02P29/00
摘要： PROBLEM TO BE SOLVED: To reduce the overshoot of an object to be controlled by a controller and thus shorten a settling time without increasing steady-state deviation when a position command is stopped. SOLUTION: A controller for a motor comprises a power converter which drives the motor, a subtractor which computes a difference between a position command value transmitted from a higher level device and the rotor position of the motor, and a position controller which computes a speed command value from the result of subtraction by the subtractor. The controller is provided with a differentiating means which differentiates a position command value before it is inputted to the subtractor, and a position command value processing means which processes output signals from the differentiating means. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：减少由控制器控制的物体的过冲，从而在停止位置指令时不会增加稳态偏差，从而缩短建立时间。解决方案：一种用于电动机的控制器包括驱动电动机的功率转换器，计算从较高级装置发送的位置指令值与电动机的转子位置之间的差异的减法器和计算电动机的位置控制器来自减法器减法结果的速度指令值。该控制器设置有将位置指令值在输入到减法器之前进行区分的微分装置，以及处理来自微分装置的输出信号的位置指令值处理装置。版权所有（C）2004，JPO

8. 发明专利

JP2001092795A DISTRIBUTED PROGRAMMABLE SERVO CONTROLLER SYSTEM 失效
公开(公告)号：JP2001092795A
公开(公告)日：2001-04-06
申请号：JP26747799
申请日：1999-09-21
申请人： HITACHI LTD
发明人： KOYAMA MASAHIRO , HOSODA YUJI , SHIMOZU TADAO , TAKASE MASATO , OHASHI TAKANORI
IPC分类号： G06F15/16 , G05B19/05
摘要： PROBLEM TO BE SOLVED: To provide a distributed programmable servo controller system formed by simplifying structure of a control system and reducing its manufacturing cost without lowering a function of a processing for which high speed is required. SOLUTION: A multi-axes mechanism control processing with lower interruption level than single-axis servo control and a communication processing between controllers is successively allocated to servo controllers from the one with the smallest processing load except a multi-axes mechanism control processing by a multi-axes cooperation control processing allocating means 105c and its allocation information is transmitted to each controller by a control information distributing means 105d.

9. 发明专利

JPH11206187A MOTOR CONTROLLING DEVICE 失效
公开(公告)号：JPH11206187A
公开(公告)日：1999-07-30
申请号：JP577798
申请日：1998-01-14
申请人： HITACHI LTD
发明人： OHASHI TAKANORI , ENDO TSUNEHIRO , TAGUCHI YOSHIYUKI , KAWASHIMA TAKUYA
IPC分类号： H02P27/06 , H02P7/63
摘要： PROBLEM TO BE SOLVED: To provide a motor controlling device that has operation command equipment separate from the motor controlling device body, and at the same time does not require the installation of a signal line. SOLUTION: Carrier transmission circuits 21 and 34 and carrier reception circuit 22 and 35 are provided in both of a motor controlling device body 1 and operation command equipment 2, and a signal is transmitted and received between the motor controlling device body 1 and the operation command equipment 2 via a power supply line L. The signal line is not specially required between the motor controlling device body 1 and the operation command equipment 2, thus simplifying a configuration, achieving low costs, and obtaining the large amount of noise resistance.

10. 发明专利

JPH05344779A 失效
公开(公告)号：JPH05344779A
公开(公告)日：1993-12-24
申请号：JP14457592
申请日：1992-06-04
申请人： HITACHI LTD
发明人： OHASHI TAKANORI , ENDO TSUNEHIRO , TAKAHASHI TADASHI , HASHIMOTO ICHIRO , NOJIRI YUKO , HARA MASAHIKO
IPC分类号： H02M7/48 , H02P5/00 , H02P5/46 , H02P6/08 , H02P21/00 , H02P27/04 , H02P27/06 , H02P29/00 , H02P6/02 , H02P5/408 , H02P5/41
摘要： PURPOSE:To provide an inexpensive, downsized load current controller in which number of components is reduced regardless of the type of motor load. CONSTITUTION:The current controller comprises a current control operating section 101, a PWM generating circuit 102, a dead time generating circuit 103, an overcurrent protective circuit 105, a current detecting circuit 106, and an encoder processing circuit 107, all of which are placed on one semiconductor substrate. Since the current controller can be employed in various types of motor load, mass productivity is enhanced and cost reduction is realized.

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