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1. 发明专利

JP2013106424A Motor controller 审中-公开
标题翻译：电机控制器
公开(公告)号：JP2013106424A
公开(公告)日：2013-05-30
申请号：JP2011248183
申请日：2011-11-14
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： ITO YOSHIKI , MAEDA DAISUKE , SHIRAHAMA HIDEFUMI
IPC分类号： H02P21/00 , H02P27/04
摘要： PROBLEM TO BE SOLVED: To provide a position sensorless motor controller with open-phase detection means that can suppress erroneous detection and detect hunger with high precision.SOLUTION: The motor controller, having an inverter main circuit 2 that outputs a three-phase AC voltage for driving a synchronous motor 3 and current detection means 6 that detects an electric current running through each phase of a synchronous motor, has a synchronous operation mode for operating the synchronous motor according to a predetermined command value and a running mode by position feedback and includes open-phase detection means 10 that detects an open phase on the basis of a current value detected by the current detection means in the running mode.
摘要翻译：要解决的问题：提供一种具有开放相位检测装置的无位置传感器电动机控制器，其可以高精度地抑制错误检测和检测饥饿。解决方案：具有输出用于驱动同步电动机3的三相交流电压的逆变器主电路2和检测通过同步电动机的各相的电流的电流检测装置6的电动机控制器具有同步运行模式，用于根据预定命令值运行同步电动机和通过位置反馈运行运行模式，并且包括基于在运行中的电流检测装置检测到的电流值来检测开路相位的开路相位检测装置10 模式。版权所有（C）2013，JPO＆INPIT

2. 发明专利

JP2012016118A Ac motor control apparatus and control method 有权
标题翻译：交流电机控制装置及控制方法
公开(公告)号：JP2012016118A
公开(公告)日：2012-01-19
申请号：JP2010148802
申请日：2010-06-30
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SUMIDA SATOSHI , TOBARI KAZUAKI , MAEDA DAISUKE , NOTOHARA YASUO
IPC分类号： H02P27/06 , H02M7/48 , H02P21/00 , H02P27/04 , H02P29/00
CPC分类号： H02P21/0003
摘要： PROBLEM TO BE SOLVED: To provide an alternating current (AC) motor control apparatus which realizes current estimation with small arithmetic load and high estimation accuracy.SOLUTION: Reactive and active currents are estimated by detecting a straight bus bar current at certain intervals during a first and a second predetermined period a number of times in each period, and then multiplying a vector consisting of the integrated sum of detected values in each period as its elements by an inverse of a matrix consisting of the integrated sum in each period of sine and cosine functions of the output voltage phase of an inverter the moment the detection was made as its elements. According to a preferred embodiment of the present invention, the reactive and active currents flowing in an alternating current motor can be estimated with high accuracy requiring a small arithmetic load.
摘要翻译：要解决的问题：提供一种交流（AC）电机控制装置，其实现具有小算术负载和高估计精度的电流估计。解决方案：通过在每个周期内的第一和第二预定周期内以特定间隔检测直线母线电流来估计无功和有效电流，然后将由检测值的积分和组成的矢量相乘在每个周期中作为其元素的逆矩阵，由矩阵的逆矩阵组成，其中每个周期中的正弦和余弦函数的反相器的输出电压相位的时间作为其元件。根据本发明的优选实施例，可以以高精度估计在交流电动机中流动的无功和有功电流，需要较小的运算负载。版权所有（C）2012，JPO＆INPIT

3. 发明专利

JP2011019399A Motor control apparatus 有权
标题翻译：电动机控制装置
公开(公告)号：JP2011019399A
公开(公告)日：2011-01-27
申请号：JP2010238113
申请日：2010-10-25
申请人： Hitachi Appliances Inc , Hitachi Car Eng Co Ltd , Hitachi Industrial Equipment Systems Co Ltd , Hitachi Ltd , 日立アプライアンス株式会社 , 株式会社日立カーエンジニアリング , 株式会社日立産機システム , 株式会社日立製作所
发明人： SUZUKI HISANORI , ENDO TSUNEHIRO , TOBARI KAZUAKI , KANEKO DAIGO , MAEDA DAISUKE , YAMAZAKI AKIRA
IPC分类号： H02P6/18
摘要： PROBLEM TO BE SOLVED: To suppress large changes in speed which is generated when a synchronous operation mode is switched to a location feedback operation mode, and to attain uniform acceleration characteristics, regardless of the load torque.SOLUTION: A motor controller is configured by estimating a torque of a permanent magnet motor during the synchronous operation mode for driving the permanent magnet motor and by setting the initial value of a current command value in an operation mode as a location sensorless mode based on information on an estimated value of the torque.
摘要翻译：要解决的问题：为了抑制当将同步操作模式切换到位置反馈操作模式时产生的速度的大的变化，并且获得均匀的加速特性，而不管负载扭矩如何。解决方案：电机控制器通过估计在用于驱动永磁电动机的同步操作模式期间的永磁电动机的转矩，并且通过基于关于转矩的估计值的信息将操作模式中的电流指令值的初始值设置为位置无传感器模式。

4. 发明专利

JP2011019348A Device and method for controlling permanent magnet synchronous motor 有权
标题翻译：用于控制永磁同步电机的装置和方法
公开(公告)号：JP2011019348A
公开(公告)日：2011-01-27
申请号：JP2009162556
申请日：2009-07-09
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SUMIDA SATOSHI , TOBARI KAZUAKI , AOYANAGI SHIGEHISA , MAEDA DAISUKE
IPC分类号： H02P6/18 , H02P27/06
CPC分类号： H02P1/029 , H02P25/024
摘要： PROBLEM TO BE SOLVED: To estimate the phase and rotational speed of a slipping permanent magnet synchronous motor by using a simple device at low cost, and to restart and operate the slipping permanent magnet synchronous motor.SOLUTION: When the permanent magnet synchronous motor 1 is slipped, the output-terminal voltage of an inverter IC2 is changed in response to the phase of the permanent magnet synchronous motor. When the magnitudes of the output-terminal voltage using a DC negative electrode for the inverter as a reference and a threshold voltage at a fixed value are compared, the polarity of the permanent magnet synchronous motor is changed at a fixed phase. This magnitude relationship can be detected at low cost by simple devices such as a level shift circuit and a NOT circuit. The phase of the permanent magnet synchronous motor is estimated on the basis of the change of the magnitude relationship, and the rotational speed is estimated by differentiating the phase of the permanent magnet synchronous motor. When the estimates of the phase and the rotational speed are fed back for synchronous operation or vector control, the slipping permanent magnet synchronous motor can be restarted.
摘要翻译：要解决的问题：通过使用简单的装置以低成本估计滑动永磁同步电动机的相位和转速，并重新启动和操作滑动永磁同步电动机。解决方案：当永磁同步电动机1为逆变器IC2的输出端电压随着永磁同步电动机的相位而变化。当使用用于逆变器的DC负极作为基准的输出端电压的大小和固定值的阈值电压进行比较时，永久磁铁同步电动机的极性以固定相位改变。可以通过诸如电平移位电路和NOT电路的简单装置以低成本检测该幅度关系。基于大小关系的变化来估计永磁同步电动机的相位，并且通过对永磁同步电动机的相位进行微分来估计转速。当相位和转速的推定反馈给同步运行或矢量控制时，可以重新启动滑动永磁同步电动机。

5. 发明专利

JP2010276531A Apparatus and method for estimating incoming direction 审中-公开
标题翻译：用于估计入院方向的装置和方法
公开(公告)号：JP2010276531A
公开(公告)日：2010-12-09
申请号：JP2009130891
申请日：2009-05-29
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： FUJIWARA RYOSUKE , MAEDA DAISUKE , MIYAZAKI SUKEYUKI
IPC分类号： G01S3/48 , G01S5/04 , G01S5/06
摘要： PROBLEM TO BE SOLVED: To provide an apparatus for estimating an incoming direction and a method for estimating an incoming direction which obtains phase information of a carrier wave of a pulse signal by a simple hardware structure to accurately estimate the incoming direction of the pulse signal.
SOLUTION: Respective antennas receive a first incoming wave and other incoming waves of a first radio signal in a multi-path environment. A first incoming wave detecting part detects the first incoming wave. A timing control part determines first sampling timing based on the detected first incoming wave. A first sampling part establishes synchronization between I and Q signals and the determined first sampling timing during a preamble period. A first correlation part obtains correlation data of the first radio wave. An incoming direction estimating part detects phase difference between first radio waves received by the respective antennas. The incoming direction of the first radio signal is calculated based on the detected phase difference.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于估计输入方向的装置和用于估计输入方向的方法，其通过简单的硬件结构获得脉冲信号的载波的相位信息，以精确估计输入方向的输入方向脉冲信号。解决方案：各个天线在多路径环境中接收第一个入射波和第一个无线电信号的其他入射波。第一输入波检测部分检测第一输入波。定时控制部分基于检测到的第一入射波确定第一采样定时。第一采样部分在前导码周期期间建立I和Q信号之间的同步以及确定的第一采样定时。第一相关部分获得第一无线电波的相关数据。进入方向估计部分检测由各个天线接收的第一无线电波之间的相位差。基于检测到的相位差来计算第一无线电信号的输入方向。版权所有（C）2011，JPO＆INPIT

6. 发明专利

JP2010154642A Device for protecting power supply circuit of three-phase inverter 有权
标题翻译：用于保护三相逆变器的电源电路的装置
公开(公告)号：JP2010154642A
公开(公告)日：2010-07-08
申请号：JP2008329545
申请日：2008-12-25
申请人： Hitachi Ltd , Sanden Corp , サンデン株式会社 , 株式会社日立製作所
发明人： MAEDA DAISUKE , ITO YOSHIKI , SHIRAHAMA HIDEFUMI , KOBAYASHI KOJI , YOSHIDA HIROSHI , TAKADA KOHEI
IPC分类号： H02M7/48 , H02M7/5387
CPC分类号： H02M1/32 , H02H7/1216 , H02H7/1222 , H02M1/4225 , H02M7/53873 , H02M2001/0009 , Y02B70/126
摘要： PROBLEM TO BE SOLVED: To improve reliability by quickly and reliably detecting an instantaneous voltage drop and an instantaneous power failure of a power supply voltage, and protecting components of an power supply circuit. SOLUTION: A device for protecting the power supply circuit of the three-phase inverter includes the power supply circuit 4 which converts an AC voltage to a DC voltage, and a three-phase inverter circuit 3 receives the converted DC output and drives an AC motor 11. The device has: power supply current detecting circuits 7, 13 for detecting a power supply circuit 2; circuit 10, 15 for detecting a DC input current of an inverter 3; a circuit 14 for detecting the DC input voltage of the inverter 3; an inverter input power calculation means 26 for calculating an input voltage of the inverter from these DC input currents and the DC input voltage; a power supply voltage failure determination means 27 for determining the power supply voltage failure from a relationship between the power supply current and the inverter input power; and a control means for stopping control of the power supply circuit 2 and the three-phase inverter 3 according to the failure determination. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：通过快速可靠地检测电源电压的瞬时电压降和瞬时停电来提高可靠性，并且保护电源电路的组件。解决方案：用于保护三相逆变器的电源电路的装置包括将AC电压转换为DC电压的电源电路4，并且三相逆变器电路3接收转换后的DC输出和驱动交流电动机11.该装置具有：电源电流检测电路7,13，用于检测电源电路2; 电路10,15，用于检测逆变器3的直流输入电流; 用于检测逆变器3的直流输入电压的电路14; 逆变器输入电力计算装置26，用于根据这些直流输入电流和直流输入电压计算逆变器的输入电压; 用于根据电源电流和逆变器输入功率之间的关系确定电源电压故障的电源电压故障确定装置27; 以及控制装置，用于根据故障确定停止对电源电路2和三相逆变器3的控制。版权所有（C）2010，JPO＆INPIT

7. 发明专利

JP2010032442A Positioning system and processing device 审中-公开
标题翻译：定位系统和处理装置
公开(公告)号：JP2010032442A
公开(公告)日：2010-02-12
申请号：JP2008196881
申请日：2008-07-30
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： MAEDA DAISUKE , MIZUGAKI KENICHI , MIYAZAKI SUKEYUKI
IPC分类号： G01S5/02 , G01S13/06
摘要： PROBLEM TO BE SOLVED: To measure the position of a moving object which does not have a sensor, a radio tag, a communication terminal device, or the like, mounted thereon, in a space in which an open environment of radio waves cannot be obtained. SOLUTION: This processing device correlates the first analysis result of a received waveform by the first moving object on which a terminal device is mounted with the position of the terminal device, and records the result in a database device; and when acquiring a received waveform by the second moving object on which a terminal device or the like is not mounted, compares the second analysis result of the received waveform with the first analysis result recorded in the database device, and outputs the position of the terminal device, when acquiring a pertinent result as the position of the second moving object. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了测量在其上安装有无线电波的开放环境的空间中安装有传感器的移动物体，无线电标签，通信终端装置等的位置无法获得。解决方案：该处理装置将接收到的波形的第一分析结果与终端装置的安装位置的第一运动物体相关联，并将结果记录在数据库装置中; 并且当没有安装终端装置等的第二移动物体获取接收到的波形时，将接收到的波形的第二分析结果与记录在数据库装置中的第一分析结果进行比较，并输出终端的位置当获取相关结果作为第二移动物体的位置时，版权所有（C）2010，JPO＆INPIT

8. 发明专利

JP2008172944A Power conversion device, apparatus and method for driving motor, and motor 有权
标题翻译：动力转换装置，驱动电动机的装置和方法以及电动机
公开(公告)号：JP2008172944A
公开(公告)日：2008-07-24
申请号：JP2007004323
申请日：2007-01-12
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： NEMOTO MASARU , SAKURAI KENJI , HASEGAWA HIROYUKI , MAEDA DAISUKE
IPC分类号： H02M7/00 , H02P6/12
摘要： PROBLEM TO BE SOLVED: To provide a motor driving device wherein it is possible to reduce the possibility of overcurrent breakdown of the switching elements 6 in a power converter and further give an opportunity of restoration from the occurrence of overcurrent. SOLUTION: When a controller 3 receives an overcurrent signal VF from an overcurrent detecting means 7, the controller disconnects all the semiconductor switching elements 6 to protect the elements. The controller keeps the semiconductor switching elements 6 disconnected for a predetermined period. After this predetermined period is expired, the controller makes a retry and monitors a recurrence of the overcurrent signal VF from the overcurrent detecting means 7 for a predetermined period. When a recurrence is detected, the controller disconnects the semiconductor switching elements 6 in response to this recurrence. The controller keeps the semiconductor switching elements disconnected for a period twice the above predetermined period and then makes them retry. Also when recurrences thereafter are detected, the disconnection period is lengthened twice by twice. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种电动机驱动装置，其中可以降低功率转换器中的开关元件6的过电流故障的可能性，并且进一步给出从过电流的发生恢复的机会。解决方案：当控制器3从过电流检测装置7接收到过电流信号VF时，控制器断开所有半导体开关元件6以保护元件。控制器保持半导体开关元件6断开预定的时间。在该预定时间期限结束之后，控制器重试并监视过电流检测装置7的过电流信号VF的再次发生预定时间。当检测到复发时，控制器响应于这种再次发生断开半导体开关元件6。控制器将半导体开关元件断开一段时间两次上述预定周期，然后重试。此外，当检测到再次发生时，断开期间延长两倍两倍。版权所有（C）2008，JPO＆INPIT

9. 发明专利

JP2008011631A Vector controller for permanent-magnet motors and inverter module 有权
标题翻译：永磁电机和逆变器模块的矢量控制器
公开(公告)号：JP2008011631A
公开(公告)日：2008-01-17
申请号：JP2006178895
申请日：2006-06-29
申请人： Hitachi Car Eng Co Ltd , Hitachi Ltd , 株式会社日立カーエンジニアリング , 株式会社日立製作所
发明人： TOBARI KAZUAKI , ENDO TSUNEHIRO , SAKAMOTO KIYOSHI , MAEDA DAISUKE , AOYANAGI SHIGEHISA
IPC分类号： H02P21/00 , H02P27/04
CPC分类号： H02P21/16
摘要： PROBLEM TO BE SOLVED: To provide an "efficient vector controller for permanent-magnet motors" that makes it possible to minimize a current with the same torque, even when a setting error (R-R * ) for resistance is present in an inexpensive system for current detection or a system with a position detector omitted. SOLUTION: Even when a d-axis current command value is set to "zero", a virtual inductance value computed from a q-axis current detection value is used in computation of an output voltage value or computation for estimating a phase error. As a result, even when a setting error (R-R * ) for resistance is present, a current can be minimized with the same torque, and an "efficient vector controller for permanent-magnet motors" can be provided. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：即使设定错误（RR * ），提供“永磁电动机的有效矢量控制器”，使得能够以相同的转矩最小化电流，用于电流检测的廉价系统中存在电阻或者省略了位置检测器的系统。解决方案：即使当d轴电流指令值被设置为“零”时，在计算输出电压值或计算相位误差的计算中使用从q轴电流检测值计算的虚拟电感值。结果，即使存在用于电阻的设定误差（RR * ），也可以以相同的转矩使电流最小化，并且可以提供“用于永磁电动机的有效矢量控制器” 。版权所有（C）2008，JPO＆INPIT

10. 发明专利

JP2012135100A Synchronous motor control device and control method 审中-公开
标题翻译：同步电动机控制装置及其控制方法
公开(公告)号：JP2012135100A
公开(公告)日：2012-07-12
申请号：JP2010283998
申请日：2010-12-21
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： MAEDA DAISUKE , SHIRAHAMA HIDEFUMI , MISHIMA MITSUHIRO
IPC分类号： H02P27/06 , H02M7/48 , H02P21/00 , H02P27/04
摘要： PROBLEM TO BE SOLVED: To provide a control device and a method of control thereof which drive a synchronous motor to high motor output capacity and with low vibration and low noise in an inexpensive configuration.SOLUTION: A synchronous motor control device having a three-phase inverter for outputting three-phase AC voltages of variable voltage/variable frequency for driving a synchronous motor, and motor control means for controlling the three-phase inverter further includes a harmonic setting circuit for setting a fifth harmonic content included in the synchronous motor. The motor control means includes: an output voltage computing section for the three-phase inverter; a harmonic content setting section for detecting and setting a harmonic content; a harmonic signal formation section for computing fifth harmonic voltage commands from the harmonic content set by the harmonic content setting section and the output voltages; a signal wave formation section for computing output voltage commands with the fifth harmonics superimposed from the output voltages and the fifth harmonic voltage commands; and a drive signal formation section for generating drive signals to the three-phase inverter according to the output voltage commands.
摘要翻译：要解决的问题：提供一种控制装置及其控制方法，其以便宜的构造驱动同步电动机以达到高电动机输出能力并且具有低振动和低噪声。解决方案：具有用于输出用于驱动同步电动机的可变电压/可变频率的三相AC电压的三相逆变器的同步电动机控制装置，以及用于控制三相逆变器的电动机控制装置还包括谐波用于设置包括在同步电动机中的第五谐波含量的设置电路。电动机控制装置包括：用于三相逆变器的输出电压计算部分; 谐波含量设定部，用于检测和设定谐波含量; 谐波信号形成部，用于根据由谐波含量设定部设定的谐波含量和输出电压来计算五次谐波电压指令; 信号波形成部，用于计算从输出电压和五次谐波电压指令叠加的五次谐波的输出电压指令; 以及驱动信号形成部，用于根据输出电压指令向三相逆变器产生驱动信号。版权所有（C）2012，JPO＆INPIT

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