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    • 11. 发明专利
    • Encoder and encoder system
    • 编码器和编码器系统
    • JP2013007696A
    • 2013-01-10
    • JP2011141592
    • 2011-06-27
    • Mitsubishi Electric Corp三菱電機株式会社
    • HASEGAWA MICHIYASUMIYAZAKI TOMOHIROMATSUMOTO HIROTERUTERADA HIROSHISHINOHARA KOJI
    • G01D5/244
    • PROBLEM TO BE SOLVED: To provide an encoder which has no need to previously calculate power consumption during backup by a test, etc., which accurately calculates a battery life, and which can properly output a warning to the outside according to the calculated battery life.SOLUTION: An encoder 3 includes a battery life determining part 7 which calculates power consumption of a battery 4 during the shutdown of a main power source on the basis of a shutdown time of the main power source and a battery residual capacity calculated from an output voltage of the battery 4 and which also calculates an available time of the battery 4 for backing up the encoder 3 by using the power consumption of the battery 4 and a residual capacity of the battery 4 after restoring the main power source, so as to output a warning to the outside.
    • 要解决的问题:提供一种编码器,其不需要预先计算通过测试等的备份期间的功率消耗,其可以精确地计算电池寿命,并且可以根据所述的方式正确地向外部输出警告 计算电池寿命。 解决方案:编码器3包括电池寿命确定部分7,该电池寿命确定部分7基于主电源的停机时间和从主电源关闭时间计算的电池剩余容量来计算在主电源关闭期间电池4的功耗 电池4的输出电压,并且还通过使用电池4的功耗和恢复主电源之后的电池4的剩余容量来计算用于备份编码器3的电池4的可用时间,以便 向外界输出警告。 版权所有(C)2013,JPO&INPIT
    • 12. 发明专利
    • Position controller for electromotor
    • 电动机位置控制器
    • JP2008109781A
    • 2008-05-08
    • JP2006290428
    • 2006-10-25
    • Mitsubishi Electric Corp三菱電機株式会社
    • YASUGI HIDEHIROMIYAZAKI TOMOHIRONAGANO TETSUAKI
    • H02P29/00G05B11/32G05D3/12
    • PROBLEM TO BE SOLVED: To obtain a position controller for electromotor which lessens the deviation between a rotating angle command signal and an actual rotating angle signal also during constant acceleration. SOLUTION: A speed feed forward signal calculating circuit 7 calculates a speed feed forward signal ω ff from a rotating angle command signal θ ms . A mechanical system simulating circuit 4 approximates a torque transmitting mechanism, a load machine, and a DC motor 11, and outputs a simulated speed signal ω a and a simulated rotating angle signal θ a from a torque signal τ 2 . A second position control circuit 5 outputs a speed signal ω 2 from θ ms and θ a . A first speed control circuit 9 outputs a torque signal τ 1 from a speed signal ω 3 and an actual speed signal ω m . A second speed control signal 6 controls τ 2 from ω 2 , ω a , and ω ff . A control means controls the torque of the motor 11, based on τ 1 and τ 2 . COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:为了获得用于电机的位置控制器,其也可以在恒定加速期间减小旋转角度指令信号和实际旋转角度信号之间的偏差。 解决方案:速度前馈信号计算电路7根据旋转角度指令信号θ计算速度前馈信号ω ff 。 机械系统模拟电路4近似扭矩传递机构,负载机和直流电动机11,并输出模拟速度信号ω a 和模拟转角信号θ SB>从扭矩信号τ 2 。 第二位置控制电路5从θ 和θ a 输出速度信号ω 2 。 第一速度控制电路9从速度信号ω3>和实际速度信号ω M 输出转矩信号τ 1 。 第二速度控制信号6从ω 2 ,ω a 和ω ff 控制τ 2 。 控制装置根据τ 1 和τ 2 控制电动机11的转矩。 版权所有(C)2008,JPO&INPIT
    • 13. 发明专利
    • Control device of motor
    • 电机控制装置
    • JP2005045956A
    • 2005-02-17
    • JP2003279064
    • 2003-07-24
    • Mitsubishi Electric Corp三菱電機株式会社
    • IKEDA HIDETOSHIMIYAZAKI TOMOHIRO
    • H02P29/00H02P5/00
    • PROBLEM TO BE SOLVED: To obtain a control device that can attain the stable and quick response of a control system by setting a plurality of parameters and by a simple adjustment. SOLUTION: The control device of a motor comprises: a velocity proportional feedback part that adds a signal component, on which a cutoff frequency has made a low-pass filter of ωf act by multiplying a velocity detection signal ωm by a velocity gain Kv and a negative code, to a command signal τr; a velocity integration feedback part that adds a signal component, which is obtained by multiplying a signal integrated with a velocity detection signal ωm with a velocity integration gain Kvi and a negative code, to the driving force command signal τr; and a parameter setting part that sets the velocity gain Kv, the velocity integration gain Kvi and the cutoff frequency ωf on the basis of an input response setting parameter ωs, a motor inertia value Jm and a total inertia value Jo. The parameter setting part sets the velocity gain Kv, the velocity integration gain Kvi, and the cutoff frequency ωf so that a ratio to a break point frequency ωvi, which is a value obtained by dividing the velocity integration gain Kvi of the cutoff frequency ωf by the velocity gain Kv, becomes larger as a ratio to Jo/Jm becomes larger. COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:通过设置多个参数并通过简单的调整来获得可以获得控制系统的稳定和快速响应的控制装置。 解决方案:电机的控制装置包括:速度比例反馈部分,其加上信号分量,在该信号分量上,截止频率使ωf的低通滤波器通过将速度检测信号ωm乘以速度增益 Kv和负码,到命令信号τr; 速度积分反馈部分,其将通过将与速度检测信号ωm积分的信号与速度积分增益Kvi和负码相乘的信号分量加到驱动力指令信号τr上; 以及基于输入响应设定参数ωs,电动机惯性值Jm和总惯量值Jo来设定速度增益Kv,速度积分增益Kvi和截止频率ωf的参数设定部。 参数设定部设定速度增益Kv,速度积分增益Kvi和截止频率ωf,使得与断点频率ωvi成比例的频率ωvi是将截止频率ωf的速度积分增益Kvi除以 速度增益Kv随着与Jo / Jm的比例变大而变大。 版权所有(C)2005,JPO&NCIPI
    • 14. 发明专利
    • Motor control system
    • 电机控制系统
    • JP2013198209A
    • 2013-09-30
    • JP2012060526
    • 2012-03-16
    • Mitsubishi Electric Corp三菱電機株式会社
    • MIYAZAKI TOMOHIROTONO SHINAMIGASAYA SHIGEO
    • H02P5/00
    • PROBLEM TO BE SOLVED: To obtain a motor control system, enabling easy discrimination of the way of changing connection when there is an interconnection error among a plurality of motor control devices.SOLUTION: When first comparison means 106 determines inconsistency, second comparison means 108 compares a motor type received from a communication network 2 with a motor type determined in motor type determination means 104 to determine consistency/inconsistency. If both are consistent, a motor control device of a transmission source having the motor type added to and received from the communication network 2 is identified to be a motor control device which caused an error connection. Second display means 109 displays the motor control device identified by the second comparison means 108 to be the source of occurrence of error connection, along with a motor type to be originally connected.
    • 要解决的问题:为了获得电动机控制系统,当多个电动机控制装置之间存在互连错误时,能够容易地区分连接变化的方式。第一比较装置106当确定不一致时,第二比较装置108比较 从通信网络2接收到的电动机类型,其具有在电动机类型确定装置104中确定的电动机类型,以确定一致性/不一致性。 如果两者一致,则具有添加到通信网络2并从通信网络2接收的电动机类型的发送源的电动机控制装置被识别为导致错误连接的电动机控制装置。 第二显示装置109将由第二比较装置108识别的电动机控制装置与作为原始连接的电动机类型一起显示为错误连接的发生源。
    • 15. 发明专利
    • Motor controller
    • 电机控制器
    • JP2013066342A
    • 2013-04-11
    • JP2011204643
    • 2011-09-20
    • Mitsubishi Electric Corp三菱電機株式会社
    • HAYASHI YOSHITOMOMIYAZAKI TOMOHIROTANABE AKIRA
    • H02P21/00H02P27/04
    • PROBLEM TO BE SOLVED: To obtain a motor controller which allows for enhancement of acceleration performance and control performance by correcting the follow-up delay of magnetic flux for a magnetic flux command over a wide operation region including acceleration/deceleration and load torque variation, thereby ensuring output of a predetermined torque.SOLUTION: The motor controller comprises a flux controller 13 generating an excitation current command for reducing the deviation of an estimation magnetic flux ΦS estimated in a magnetic flux estimation unit 8 from a magnetic flux command Φcom input externally, and performs drive control of an induction motor 1 by vector control. The motor controller is further provided with a flux lag compensator 16a generating a flux lag correction command Φhcom on the basis of the magnetic flux command Φcom. The flux lag correction command Φhcom is used in a subtractor 20 for taking a deviation from the estimation magnetic flux ΦS estimated by the magnetic flux estimation unit 8 in place of the magnetic flux command Φcom.
    • 要解决的问题:为了获得通过在包括加速/减速和负载转矩的宽运行区域上校正用于磁通量指令的磁通量的跟踪延迟来获得允许加强性能和控制性能提高的电动机控制器 从而确保预定扭矩的输出。 电动机控制器包括磁通控制器13,其产生励磁电流指令,用于减小在磁通量估计单元8中估计的估计磁通ΦS与从外部输入的磁通量指令Φcom的偏差,并执行驱动控制 感应电动机1通过矢量控制。 电动机控制器还设置有磁通量滞后补偿器16a,其基于磁通指令Φcom产生磁通滞后校正指令Φhcom。 在减法器20中使用通量滞后校正指令Φhcom来代替磁通量指令Φcom来估计由磁通量估计单元8估计的估计磁通ΦS的偏差。 版权所有(C)2013,JPO&INPIT
    • 16. 发明专利
    • Motor controller and system
    • 电机控制器和系统
    • JP2012175871A
    • 2012-09-10
    • JP2011037646
    • 2011-02-23
    • Mitsubishi Electric Corp三菱電機株式会社
    • OKUDA TETSUYAYAMAGUCHI KATSUYAOGI HIDEMASAMIYAZAKI TOMOHIRO
    • H02P3/22H02P5/74
    • PROBLEM TO BE SOLVED: To provide a motor controller capable of performing consumption processing on regenerative electric power using a small-scale, low-capacity regenerative resistor.SOLUTION: The motor controller includes: a converter circuit which generates a bus voltage; an inverter circuit which converts the bus voltage applied across itself into an AC voltage of arbitrary level and frequency and supplies the AC voltage to a motor; a regenerative circuit including a series circuit of the regenerative resistor connected in parallel to the inverter circuit and applied with the bus voltage across itself and a regenerative transistor; and control means of turning on the regenerative transistor so that when the bus voltage exceeds a predetermined value owing to the regenerative electric power from the motor, the regenerative resistor is made to consume the regenerative electric power. The control means performs variable control over an ON time rate of the regenerative transistor according to a regenerative load rate as a state of the regenerative circuit.
    • 要解决的问题:提供一种能够使用小规模,低容量再生电阻器对再生电力进行消耗处理的电动机控制器。 电机控制器包括:产生总线电压的转换电路; 逆变器电路,其将本身施加的总线电压转换成任意电平和频率的AC电压,并将AC电压提供给电动机; 再生电路,其包括与所述逆变器电路并联连接的再生电阻器的串联电路,并且跨越其施加总线电压和再生晶体管; 以及控制装置,其使再生晶体管接通,使得当总线电压由于来自电动机的再生电力而超过预定值时,使再生电阻器消耗再生电力。 控制装置根据作为再生电路的状态的再生负载率对再生晶体管的ON时间速率进行可变控制。 版权所有(C)2012,JPO&INPIT
    • 17. 发明专利
    • Overheat protection device
    • 过度保护装置
    • JP2010268614A
    • 2010-11-25
    • JP2009118413
    • 2009-05-15
    • Mitsubishi Electric Corp三菱電機株式会社
    • SHINZEN TAKEHIROMIYAZAKI TOMOHIRO
    • H02H7/122H02H6/00H02M7/48H02P29/00
    • PROBLEM TO BE SOLVED: To achieve an overheat protection device that allows maximum utilization of performance of a power converter while achieving overload protection according to use conditions.
      SOLUTION: The overheat protection device is applied to a power converting device including a power converter, comprising a plurality of semiconductor switching elements, and a control part 1 that controls operation of the power converter. The overheat protection device outputs an overload protection signal 12 to the control part 1 so as to stop the power converter. The overheat protection device includes a load current detecting part 14 that detects a current supplied to a load 4 from the power converter so as to output it as a load current detected value 10, a temperature detecting part 5 that detects an ambient temperature of the switching elements so as to output it as an ambient temperature detected value Ta, and an overload protection part 20 that calculates a junction temperature estimated value 11 of an inverter main circuit element on the basis of the load current detected value 10 and the ambient temperature detected value Ta so as to output the overload protection signal 12 according to the junction temperature estimated value 11 and an overload protection set value 7.
      COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:实现过热保护装置,其可以根据使用条件实现对功率转换器的性能的最大利用,同时实现过载保护。 解决方案:过热保护装置应用于包括多个半导体开关元件的功率转换器的功率转换装置和控制功率转换器的操作的控制部分1。 过热保护装置向控制部1输出过载保护信号12,停止电力转换器。 过热保护装置包括负载电流检测部14,该负载电流检测部14检测从功率转换器提供给负载4的电流,以将其作为负载电流检测值10输出;温度检测部5,其检测开关的环境温度 将其作为环境温度检测值Ta输出,并且根据负载电流检测值10和周围温度检测值计算逆变器主电路元件的结温估计值11的过载保护部20 Ta,以便根据结温估计值11和过载保护设定值7输出过载保护信号12.版权所有(C)2011,JPO&INPIT
    • 18. 发明专利
    • Motor controller
    • 电机控制器
    • JP2008253088A
    • 2008-10-16
    • JP2007093474
    • 2007-03-30
    • Mitsubishi Electric Corp三菱電機株式会社
    • MIYAZAKI TOMOHIROANDO KAZUAKI
    • H02P29/00
    • PROBLEM TO BE SOLVED: To obtain a motor controller that achieves high-precision fully-closed control by using only a linear scale. SOLUTION: The motor controller has a machine-position input means 20, which inputs a detection signal of a machine-position detector so as to output a machine position, a speed control means 8, which inputs a sum of a differential-speed estimation value and a machine speed as a speed feedback signal so as to output a torque command that allows the speed feedback signal to follow a speed command, a torque control means 9 for controlling motor torque on the basis of a magnetic-pole position, a speed detection means 10 for differentiating the machine position so as to output a machine speed, and a differential-speed estimation means 11 that inputs a torque command so as to output a differential-speed estimation value being an estimation value of a difference between a motor speed and a machine speed. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:获得通过仅使用线性标尺实现高精度全闭控制的电动机控制器。 解决方案:电机控制器具有机器位置输入装置20,其输入机械位置检测器的检测信号以输出机器位置;速度控制装置8,其输入差速传感器的总和, 速度估计值和机器速度作为速度反馈信号,以输出允许速度反馈信号跟随速度指令的转矩指令;转矩控制装置9,用于基于磁极位置控制电动机转矩; 速度检测装置10,用于区分机器位置以输出机器速度;差速速度估计装置11,其输入转矩指令,以输出作为差分速度估计值的差分速度估计值, 电机转速和机器转速。 版权所有(C)2009,JPO&INPIT
    • 19. 发明专利
    • Position controller
    • 位置控制器
    • JP2009169468A
    • 2009-07-30
    • JP2008003516
    • 2008-01-10
    • Mitsubishi Electric Corp三菱電機株式会社
    • KON TAKAKIMIMIYAZAKI TOMOHIROKOBAYASHI YUKIHIKO
    • G05B19/404
    • PROBLEM TO BE SOLVED: To solve a problem that in a position controller which performs position control of a motor in synchronization with a starting signal from outside, variations of an execution cycle in creating a position command arise at the maximum after input of the starting signal until start of the motor, since the position command is created in the next execution cycle after reading the starting signal, and complicated motion control processing is required in order to suppress this variation.
      SOLUTION: Delay time from the starting time to execution start time of the next position command creation processing cycle is computed, and based on the delay time, a position command which is in agreement with the position command which does not have delay to the starting time is created.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:为了解决在与来自外部的起动信号同步地执行电动机的位置控制的位置控制器中的问题,在产生位置命令之后的执行周期的变化在输入 由于在读取起始信号之后在下一个执行周期中创建位置指令,所以起动信号直到电动机起动,并且需要复杂的运动控制处理以便抑制该变化。

      解决方案:计算从下一个位置命令创建处理周期的起始时间到执行开始时间的延迟时间,并且基于延迟时间,与不具有延迟的位置命令一致的位置命令 创建起始时间。 版权所有(C)2009,JPO&INPIT

    • 20. 发明专利
    • Semiconductor device
    • 半导体器件
    • JP2006140317A
    • 2006-06-01
    • JP2004328608
    • 2004-11-12
    • Mitsubishi Electric Corp三菱電機株式会社
    • TANAKA TOSHITAKAMIYAZAKI TOMOHIRO
    • H01L25/07H01L23/00H01L25/18
    • H01L2224/48091H01L2924/00014
    • PROBLEM TO BE SOLVED: To protect parts located around a semiconductor device against breakage and ignition caused by a ground fault caused by a short-circuit fault in a semiconductor element. SOLUTION: The semiconductor device is configured so as to be equipped with a case 30 with an open top and a bottom where the semiconductor element 25 is arranged, a silicon gel 32 filling the case 30 so as to cover the semiconductor element 25, a lid 50 which covers the open top of the case 30, and a structural member 51 which restricts the direction and width of an opening provided to the lid 50 when the silicon gel 32 fractures so as to form the opening in the lid 50. The one-side of the lid 50 is pinched between the structural member 51 and the case 30 so as to restrict the direction and width of the opening formed to the lid 50 when the lid 50 is opened, and the structural member 51 is provided to the case 30 so as to form a gap between the structural member 51 itself and the lid 50 at the side of the lid 50 opposite to its pinched side. COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:为了保护位于半导体器件周围的部件免受由半导体元件中的短路故障引起的接地故障引起的断线和点火。 解决方案:半导体器件被配置为配备有壳体30,壳体30具有设置半导体元件25的开放顶部和底部,硅胶32填充壳体30以覆盖半导体元件25 覆盖壳体30的开口顶部的盖50以及当硅胶32断裂以形成盖50中的开口时限制设置在盖50上的开口的方向和宽度的结构构件51。 盖50的一侧被夹在结构构件51和壳体30之间,以限制当盖50打开时形成在盖50上的开口的方向和宽度,并且结构构件51被设置为 壳体30,以便在盖子50的与其夹紧侧相对的一侧上形成结构件51本身和盖子50之间的间隙。 版权所有(C)2006,JPO&NCIPI