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1. 发明专利

JP2010239720A Overload protective device of pmw inverter and motor drive system 有权
标题翻译： PMW逆变器和电机驱动系统的过载保护装置
公开(公告)号：JP2010239720A
公开(公告)日：2010-10-21
申请号：JP2009083965
申请日：2009-03-31
申请人： Hitachi Industrial Equipment Systems Co Ltd , 株式会社日立産機システム
发明人： TAJIMA KIYOMI , OKUBO TOMOFUMI , OIKAWA KUNIHIKO
IPC分类号： H02M7/48 , H02P7/06 , H02P27/06 , H02P27/08
摘要： PROBLEM TO BE SOLVED: To solve the problem that overload protection is activated as integration is performed only by addition although average load currents are within rated values, in load variations and power supply beat phenomena. SOLUTION: In the integration only by addition, an integrated value is subtracted when a load becomes smaller than a prescribed value, thus avoiding determination of an overload when the average load current V 2 is smaller than a rated value, and hence providing a motor drive system that can be operated stably. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：为了解决过载保护被激活的问题，只有通过加法执行积分，尽管平均负载电流在额定值内，在负载变化和电源节拍现象中。解决方案：在仅通过加法进行积分时，当负载变得小于规定值时减去积分值，从而避免当平均负载电流V SB <2>小于...时确定过载额定值，因此提供可以稳定运行的电动机驱动系统。版权所有（C）2011，JPO＆INPIT

2. 发明专利

JP2007020324A Control method for permanent-magnet synchronous motor 有权
标题翻译：永磁同步电机的控制方法
公开(公告)号：JP2007020324A
公开(公告)日：2007-01-25
申请号：JP2005200077
申请日：2005-07-08
申请人： Hitachi Industrial Equipment Systems Co Ltd , 株式会社日立産機システム
发明人： TAGUCHI YOSHIYUKI , SANO MASAHIRO , OKUBO TOMOFUMI
IPC分类号： H02P27/06
摘要： PROBLEM TO BE SOLVED: To provide a control method for permanent-magnet synchronous motors wherein protection for a switching element of a PWM inverter can be obtained without fail even when the rotor shaft of a motor is locked up. SOLUTION: The control method is such that a permanent-magnet synchronous motor is driven by a PWM inverter. If the rotor shaft of the permanent-magnet synchronous motor is locked up and a direct current is passed through a specific switching element of an inverter, this lockup is detected at Step 220. When lockup is detected, the carrier frequency of the PWM inverter is reduced at Step 280. Thus, the switching loss in the switching element is reduced; therefore, the amount of heat generated by the switching element can be reduced and it can be protected without reducing the current passed through the switching element. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种用于永磁同步电动机的控制方法，其中即使当电动机的转子轴被锁定时，也可以不间断地获得对PWM逆变器的开关元件的保护。
解决方案：控制方法是由永磁同步电动机由PWM逆变器驱动。如果永磁同步电动机的转子轴被锁定，并且直流电流通过逆变器的特定开关元件，则在步骤220检测到该锁定。当检测到锁定时，PWM逆变器的载波频率为因此，开关元件中的开关损耗减小; 因此，可以减少由开关元件产生的热量，并且可以保护开关元件的热量而不减少通过开关元件的电流。版权所有（C）2007，JPO＆INPIT

3. 发明专利

JP2006020454A Controller for permanent magnet synchronous motor 审中-公开
标题翻译：永磁同步电机控制器
公开(公告)号：JP2006020454A
公开(公告)日：2006-01-19
申请号：JP2004197032
申请日：2004-07-02
申请人： Hitachi Industrial Equipment Systems Co Ltd , 株式会社日立産機システム
发明人： SANO MASAHIRO , OKUBO TOMOFUMI , ENDO TSUNEHIRO , KANEKO DAIGO
IPC分类号： H02P6/18 , H02P6/24
摘要： PROBLEM TO BE SOLVED: To control a permanent magnet synchronous motor from an very-low speed to stop without depending on a structure of the motor. SOLUTION: The controller for a permanent magnet synchronous motor is equipped with, a motor 1 operation control by a first control mode which estimates an axis error ▵θ by an axis error estimation means 5, controls a dc axis position based on the estimation and gives the voltage command from a vector controller 10 to a power transformer 13 to control the motor 1 without detecting the electrical angle position, with a motor 1 operation control by a second control mode which inputs an accompanying stop speed command value ω 0 * output from an accompanying stop control means 14 into a magnetic pole position computing means 8 and the vector controller 10 to perform synchronous accompanying control of the motor 1, and with a motor 1 operation control by a third control mode which inputs a second three-phase voltage command V UVW2 * output from all phase chopper command means 17 into a PWM generator 12 to perform chopper regenerative control of the motor 1. In decelerating and stopping, the operation control by the third control mode is transferred to that by the second control mode, reducing the speed of the motor 1 and stopping it in the operation control by the second control mode. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：从非常低的速度控制永磁同步电动机，而不依赖于电动机的结构。解决方案：用于永磁同步电动机的控制器配备有通过轴误差估计装置5估计轴误差▵θ的第一控制模式的电动机1操作控制，基于估计并且将来自矢量控制器10的电压指令提供给电力变压器13以控制电动机1而不检测电气角度位置，电动机1通过输入伴随的停止速度指令值ω

4. 发明专利

JP2005039889A Method for controlling electric motor 审中-公开
标题翻译：控制电机的方法
公开(公告)号：JP2005039889A
公开(公告)日：2005-02-10
申请号：JP2003197313
申请日：2003-07-15
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： OKUBO TOMOFUMI , SANO MASAHIRO , IWAJI YOSHITAKA , ENDO TSUNEHIRO , NOTOHARA YASUO
IPC分类号： H02P25/08 , H02P21/00 , H02P27/04 , H02P27/06 , H02P5/41 , H02P5/05
摘要： PROBLEM TO BE SOLVED: To realize a control performance without regulating the mounting accuracy of a position detecting means in the control of a synchronous motor using the position detecting means. SOLUTION: In a method for controlling an electric motor when the position detecting means 5 is not mounted at a proper position to the synchronous motor 1 in a proper accuracy, a deviation arises in position information of the position detecting means 5 incorporated in a controller 11. Then, when the position detecting means 5 is not disposed at the proper position, the method includes a step of forming a control phase θdc by a position estimator 20 by operating the synchronous motor 1 without position sensor, and estimating the phase at output signal timing of the position detecting means 5. The method further includes a step of newly holding the estimated phase by inputting the estimated phase to a position information holder 23, tuning the position information of the position detecting means 5 incorporated in the controller 11, thereafter correcting an output of the position detecting means 5 according to information incorporated in the position information holder 23, and operating the synchronous motor 1. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：在使用位置检测装置的同步电动机的控制中，实现控制性能而不调节位置检测装置的安装精度。解决方案：在位置检测装置5没有以适当的精度安装在同步电动机1的正确位置时用于控制电动机的方法中，在位置检测装置5的位置信息中，控制器11.然后，当位置检测装置5未被设置在正确的位置时，该方法包括通过位置估计器20通过操作没有位置传感器的同步电动机1来形成控制相位θdc的步骤，并且估计相位在位置检测装置5的输出信号定时处，还包括通过将估计的相位输入到位置信息保持器23来重新保持估计相位的步骤，调整包含在控制器11中的位置检测装置5的位置信息之后，根据结合在位置信息保持器23中的信息来修正位置检测单元5的输出，并进行操作同步电机1.版权所有（C）2005，JPO＆NCIPI

5. 发明专利

JP2004048886A Drive controller for synchronous motor 有权
公开(公告)号：JP2004048886A
公开(公告)日：2004-02-12
申请号：JP2002201646
申请日：2002-07-10
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： IWAMICHI YOSHINAO , ENDO TSUNEHIRO , SAKAMOTO KIYOSHI , OKUBO TOMOFUMI
IPC分类号： H02P6/18 , H02P21/00 , H02P27/04 , H02P27/06 , H02P7/63
摘要： PROBLEM TO BE SOLVED: To provide a drive controller for a synchronous motor which can materialize the control property of high torque and high performance in a wide speed range from stop state to high-speed zone. SOLUTION: This device is equipped with a first control system (V/F constant control system) which controls the relation between the drive frequency of a synchronous motor and the application voltage to be constant based on a speed command value, a second control system (magnetic position sensorless/vector control system) which controls the amplitude and the phase of the drive voltage of the synchronous motor, based on the speed command value and the drive current detection value of the synchronous motor, and a switching means which switches the first and second control systems, according to the speed command value, and this applies the V/F constant control system to a low-speed zone, and for middle and high speed zones, this switches it over to the magnetic pole position sensorless/vector control system, and this applies a drive frequency correction means for correcting the drive frequency, based on the drive current detection value, in common to the first and second control systems, whereby this materializes the control properties of high torque and high performance in a wide speed range from stop state to high-speed zone. COPYRIGHT: (C)2004,JPO

6. 发明专利

JP2012149651A Compressor and method for controlling compressor 有权
标题翻译：压缩机和控制压缩机的方法
公开(公告)号：JP2012149651A
公开(公告)日：2012-08-09
申请号：JP2012110367
申请日：2012-05-14
申请人： Hitachi Industrial Equipment Systems Co Ltd , 株式会社日立産機システム
发明人： OKUBO TOMOFUMI , SUZUKI NOBUNAGA , TAGUCHI YOSHIYUKI , UEMATSU HAJIME , HASE MASAKAZU
IPC分类号： F04B49/02 , F04C28/06
摘要： PROBLEM TO BE SOLVED: To enable stabilizing control of starting for improving influences of a load torque increase caused by liquid, because, in a compressor for compressing gas, the liquid is present in the compressor body and in the surrounding paths, and due to the cause of lubricant oil increased in viscosity when used in a low temperature environment and a refrigerant or the like which is partially liquefied when used after being left without use for a long period, stable starting becomes difficult due to a torque increase at start-up, which may result in a case of stoppage due to a protection function of the compressor, and in that case, maintenance work for restarting or the like of the compressor is required, leading to deterioration of the reliability.SOLUTION: For stabilizing control at start-up, positioning operation is performed when the viscosity of liquid is low just after the stop of a rotator, or the rotator is rotated by a predetermined rotation amount just after the start-up and then is stopped once, and successively, the rotator is driven at a command rotation speed provided as a control command value.
摘要翻译：要解决的问题：为了实现稳定的起动控制，改善由液体引起的负载转矩增加的影响，因为在用于压缩气体的压缩机中，液体存在于压缩机主体和周围的路径中，并且由于润滑油在低温环境下使用时粘度增加的原因，以及在长时间不使用后被使用时部分液化的制冷剂等，由于起动时的转矩增加而导致稳定的起动变得困难 -up，这可能导致由于压缩机的保护功能而停止的情况，并且在这种情况下，需要用于重新起动等的压缩机的维护工作，导致可靠性的劣化。
解决方案：为了稳定启动时的控制，当刚刚停止旋转器之后液体的粘度低，或转动器在启动之后旋转预定旋转量时，进行定位操作，然后停止一次，并且依次以作为控制指令值提供的指令旋转速度驱动旋转器。版权所有（C）2012，JPO＆INPIT

7. 发明专利

JP2008163927A Compressor control system, motor control device, and motor control method 有权
标题翻译：压缩机控制系统，电动机控制装置和电动机控制方法
公开(公告)号：JP2008163927A
公开(公告)日：2008-07-17
申请号：JP2007000355
申请日：2007-01-05
申请人： Hitachi Industrial Equipment Systems Co Ltd , 株式会社日立産機システム
发明人： UEMATSU HAJIME , SUZUKI NOBUNAGA , OKUBO TOMOFUMI , HASE MASAKAZU
IPC分类号： F04B49/06 , H02P29/00
摘要： PROBLEM TO BE SOLVED: To provide a compressor control system, motor control devices, and a motor control method with which a compressor having higher reliability than before does not require an increase in the capacity of a motor and the motor control devices. SOLUTION: The compressor control system comprises the compressor 60 having a valve at an air intake port, the motor 50 for operating the compressor 60, and the motor control devices 10 to 40 for controlling the rotational speed of the motor 50 and driving the motor 50. In the compressor control system, the motor control devices 10 to 40 maintain the rotational speed of the motor 50 at a constant value, stably without erroneously stopping, during a period when a high motor torque is demanded until the valve 80 of the air intake port is opened, upon starting the motor 50 under a condition in which pressure inside the compressor 60 is higher than the atmospheric pressure. The motor control device maintains the rotational speed of the motor 50 by using a rotational instruction value for the motor 50. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种压缩机控制系统，电动机控制装置以及电动机控制方法，通过该方法，具有比以前更高的可靠性的压缩机不需要增加电动机和电动机控制装置的容量。解决方案：压缩机控制系统包括在进气口具有阀的压缩机60，用于操作压缩机60的电动机50和用于控制电动机50的转速和驱动的电动机控制装置10至40 电动机50.在压缩机控制系统中，电动机控制装置10〜40在需要高电动机转矩直到阀80的期间内将电动机50的转速稳定地维持在稳定的状态而不会错误地停止在压缩机60内的压力高于大气压的条件下启动电动机50时，进气口打开。电动机控制装置通过使用电动机50的旋转指令值来维持电动机50的转速。（C）2008，JPO＆INPIT

8. 发明专利

JP2007221999A Control device for ac motor, and control method therefor 有权
标题翻译：交流电机控制装置及其控制方法
公开(公告)号：JP2007221999A
公开(公告)日：2007-08-30
申请号：JP2007147609
申请日：2007-06-04
申请人： Hitachi Appliances Inc , Hitachi Industrial Equipment Systems Co Ltd , Hitachi Ltd , 日立アプライアンス株式会社 , 株式会社日立産機システム , 株式会社日立製作所
发明人： IWAJI YOSHITAKA , ENDO TSUNEHIRO , SAKAMOTO KIYOSHI , OKUBO TOMOFUMI
IPC分类号： H02P21/00 , H02P27/04 , H02P27/08
摘要： PROBLEM TO BE SOLVED: To provide a device for controlling an electric motor which enables the variable speed drive of high performance even at a high carrier frequency in a driving gear that does not have a means of directly detecting a rotor position, a rotational speed of the AC motor, and a phase current of the electric motor. SOLUTION: In the case of detecting a current from the DC power supply of an inverter for driving the electric motor, relating to this current intermittently flowing in a pulse state, the value in the vicinity of an intermediate time in each conduction interval is sampled, the applied voltage or a frequency to the electric motor is controlled based on the sampled value. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于控制电动机的装置，即使在不具有直接检测转子位置的装置的驱动齿轮中，即使在高载波频率下也能够实现高性能的变速驱动，交流电动机的转速以及电动机的相电流。解决方案：在检测到来自用于驱动电动机的逆变器的直流电源的电流与在脉冲状态下间歇地流动的该电流相关的情况下，在每个导通间隔中的中间时间附近的值被采样，基于采样值来控制施加的电压或对电动机的频率。版权所有（C）2007，JPO＆INPIT

9. 发明专利

JP2007181309A Control method of permanent magnet synchronous motor drive unit, and the permanent magnet synchronous motor drive unit using the method 有权
标题翻译：永磁同步电机驱动单元的控制方法和使用该方法的永磁同步电机驱动单元
公开(公告)号：JP2007181309A
公开(公告)日：2007-07-12
申请号：JP2005376955
申请日：2005-12-28
申请人： Hitachi Industrial Equipment Systems Co Ltd , 株式会社日立産機システム
发明人： TAGUCHI YOSHIYUKI , OKUBO TOMOFUMI
IPC分类号： H02P6/12 , H02P6/08
摘要： PROBLEM TO BE SOLVED: To provide a control method of a permanent magnet synchronous motor drive unit that is improved in reliability more than that of conventional types, and to provide the permanent magnet synchronous motor drive unit using the method. SOLUTION: Regarding the detection of an open phase, a current does not flow, since there is no output from the drive unit in a phase that is interrupted. Accordingly, the presence of absence or the open phase can be known by measuring a current flowing at each phase. When detection output is outputted, in a state where a motor is stopped, however, the detection output is outputted at a voltage value that is permitted by a switching element at the output stage of the drive unit, or within an allowable period. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种永久磁铁同步电机驱动单元的控制方法，其比常规类型提高了可靠性，并且提供了使用该方法的永磁同步电动机驱动单元。
解决方案：关于开路相的检测，电流不流动，因为驱动单元没有被中断的相位的输出。因此，通过测量在每个相处流动的电流，可以知道不存在或开放相的存在。然而，当在电动机停止的状态下输出检测输出时，检测输出以驱动单元的输出级的开关元件所允许的电压值或允许的期间输出。版权所有（C）2007，JPO＆INPIT

10. 发明专利

JP2005020918A Control device for ac motor and ac motor system 有权
标题翻译：交流电机和交流电机系统的控制装置
公开(公告)号：JP2005020918A
公开(公告)日：2005-01-20
申请号：JP2003183714
申请日：2003-06-27
申请人： Hitachi Industrial Equipment Systems Co Ltd , 株式会社日立産機システム
发明人： KANEKO DAIGO , IWAJI YOSHITAKA , SAKAMOTO KIYOSHI , ENDO TSUNEHIRO , OKUBO TOMOFUMI
IPC分类号： H02P6/18 , H02P21/00 , H02P21/14 , H02P27/04
CPC分类号： H02P6/185 , H02P21/18 , H02P21/32 , H02P2203/01
摘要： PROBLEM TO BE SOLVED: To provide a control device for an AC motor capable of applying to the general PM motor and detecting magnetic pole positions with a simple algorithm. SOLUTION: This control device for the AC motor is equipped with an inverter for applying arbitrary AC to the AC motor and a controller for transmitting a control signal to the inverter. The controller includes a pulsation current applying means for giving pulsation current to the motor and a magnetic-pole position estimating means. The magnetic-pole position estimating means observes at least two current values of the pulsation currents on each of positive and negative sides of the pulsation currents to estimate the magnetic-pole position of the AC motor. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种能够以简单的算法应用于一般的PM电动机和检测磁极位置的AC电动机的控制装置。
解决方案：该交流电动机的控制装置配备有用于向交流电动机施加任意交流的逆变器和用于向逆变器发送控制信号的控制器。控制器包括用于向电动机产生脉动电流的脉动电流施加装置和磁极位置估计装置。磁极位置估计装置在脉动电流的正负侧观察脉动电流的至少两个电流值，以估计AC电动机的磁极位置。版权所有（C）2005，JPO＆NCIPI

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