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公开(公告)号：US07375482B2
公开(公告)日：2008-05-20
申请号：US11523002
申请日：2006-09-19
摘要： An object is to provide a driving device capable of smoothly shifting from a starting state to a sensor-less vector control, in a case where the device drives a motor by the sensor-less vector control, and the device includes a voltage detecting circuit which detects an induced electromotive voltage of the motor. A control circuit starts the motor by rectangular wave control. A magnetic pole position of a rotor is detected based on an induced electromotive voltage of one remaining phase of the motor detected by the voltage detecting circuit. The control circuit controls a main inverter circuit based on the detected magnetic pole position, and accelerates the motor by the rectangular wave control. In a case where a predetermined shift revolution speed is reached, the control circuit shifts to vector control by the sensor-less in which the magnetic pole position detected during the rectangular wave control is used as an initial value.
摘要翻译： 本发明的目的是提供一种驱动装置，其能够在通过无传感器矢量控制来驱动电动机的情况下，能够从启动状态平滑地变换为无传感器矢量控制，并且该装置包括：电压检测电路， 检测电动机的感应电动势。 控制电路通过矩形波控制启动电机。 基于由电压检测电路检测到的电机的一个剩余相的感应电动势来检测转子的磁极位置。 控制电路基于检测到的磁极位置控制主逆变器电路，并通过矩形波控制来加速电动机。 在达到预定的换档转速的情况下，控制电路通过使用在矩形波控制期间检测到的磁极位置作为初始值的无传感器转换到矢量控制。
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公开(公告)号：US20070063666A1
公开(公告)日：2007-03-22
申请号：US11523002
申请日：2006-09-19
IPC分类号： H02P27/04
摘要： An object is to provide a driving device capable of smoothly shifting from a starting state to a sensor-less vector control, in a case where the device drives a motor by the sensor-less vector control, and the device includes a voltage detecting circuit which detects an induced electromotive voltage of the motor. A control circuit starts the motor by rectangular wave control. A magnetic pole position of a rotor is detected based on an induced electromotive voltage of one remaining phase of the motor detected by the voltage detecting circuit. The control circuit controls a main inverter circuit based on the detected magnetic pole position, and accelerates the motor by the rectangular wave control. In a case where a predetermined shift revolution speed is reached, the control circuit shifts to vector control by the sensor-less in which the magnetic pole position detected during the rectangular wave control is used as an initial value.
摘要翻译： 本发明的目的是提供一种驱动装置，其能够在通过无传感器矢量控制来驱动电动机的情况下，能够从启动状态平滑地变换为无传感器矢量控制，并且该装置包括：电压检测电路， 检测电动机的感应电动势。 控制电路通过矩形波控制启动电机。 基于由电压检测电路检测到的电机的一个剩余相的感应电动势来检测转子的磁极位置。 控制电路基于检测到的磁极位置控制主逆变器电路，并通过矩形波控制来加速电动机。 在达到预定的换档转速的情况下，控制电路通过使用在矩形波控制期间检测到的磁极位置作为初始值的无传感器转换到矢量控制。
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公开(公告)号：US20090309525A1
公开(公告)日：2009-12-17
申请号：US12306115
申请日：2007-06-14
申请人： Mamoru Kubo , Kenji Nojima , Kazuhisa Otagaki
发明人： Mamoru Kubo , Kenji Nojima , Kazuhisa Otagaki
IPC分类号： H02P27/04
CPC分类号： H02M1/4225 , H02M2001/007 , H02P23/28 , Y02B70/126
摘要： A drive for motor that can be operated up to a high load while improving efficiency of an inverter is provided. The drive for a motor includes: a voltage conversion circuit 2 that changes a value of a DC voltage and outputs the DC voltage; an inverter 3 that converts the DC voltage output from the voltage conversion circuit into an AC voltage, the conversion being performed by a switching operation of a switching element; and control means that controls the DC voltage output from the voltage conversion circuit and controls a voltage output from the inverter by the switching element so as to drive the motor 1. The control means executes DC voltage adjustment control in which the DC voltage output from the voltage conversion circuit is controlled based on a modulation factor of the DC voltage modulated by the inverter so that the modulation factor becomes closer to 1.
摘要翻译： 提供了一种能够在提高变频器效率的同时高负载运行的电动机。 电动机的驱动器包括：电压转换电路2，其改变直流电压的值并输出直流电压; 将从电压转换电路输出的直流电压转换为交流电压的逆变器3，通过开关元件的开关动作进行转换; 以及控制装置，其控制从电压转换电路输出的直流电压，并通过开关元件控制从逆变器输出的电压，以便驱动电动机1.控制装置执行直流电压调节控制，其中从 电压转换电路根据由逆变器调制的直流电压的调制系数进行控制，使调制度变得更接近1。
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公开(公告)号：US20050174075A1
公开(公告)日：2005-08-11
申请号：US11047697
申请日：2005-02-02
申请人： Mamoru Kubo , Kenji Nojima
发明人： Mamoru Kubo , Kenji Nojima
CPC分类号： H02M7/53871 , F25B2600/021 , H02M1/32 , H02M2007/53876 , H02P27/06
摘要： An object is to provide an inverter device capable of realizing exact protection of the winding of a motor. An inverter device for generating a pseudo alternating current by switching a direct current to drive a motor, comprises a controller that executes vector control on the basis of a secondary current applied to the motor. The controller calculates a current density from the secondary current to execute a predetermined protection operation on the basis of the calculated current density. The controller imposes a restriction on the operation frequency of the motor on the basis of the current density.
摘要翻译： 本发明的目的是提供一种能够实现对电动机的绕组的精确保护的逆变器装置。 一种用于通过切换直流来驱动电动机来产生伪交流电的逆变器装置，包括基于施加到电动机的次级电流来执行矢量控制的控制器。 控制器根据二次电流计算出电流密度，以根据计算出的电流密度来执行预定的保护动作。 控制器基于电流密度对电动机的工作频率进行限制。
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公开(公告)号：US20080072619A1
公开(公告)日：2008-03-27
申请号：US11903038
申请日：2007-09-20
申请人： Kenji Nojima , Mamoru Kubo
发明人： Kenji Nojima , Mamoru Kubo
CPC分类号： F25B49/025 , F25B2309/061 , F25B2500/26 , F25B2600/021 , Y02B30/741
摘要： The present invention provides, in case of driving to control a motor for a refrigerant compressor by a sensorless system, a driving device that reduces vibrations and noises at starting, and realizes a smooth connection to the sensorless system. The driving device 22 includes a main inverter circuit 1 that applies quasi three-phase ac voltages to and drives the motor 21 for driving the refrigerant electric compressor forming a refrigerant circuit, current sensors 6V and 6W that detect the currents flown into the motor, and a control circuit 23 that executes driving and controlling by the sensorless system on the basis of the outputs from the current sensors. The control circuit applies predetermined starting currents that generate a rotational magnetic field to the motor and starts the motor, and after accelerating to a predetermined connecting frequency, shifts to driving and controlling by the sensorless system, and varies the starting currents and connecting frequency in accordance with a load of the compressor.
摘要翻译： 本发明在通过无传感器系统驱动制冷剂压缩机的电动机的驱动的情况下，提供了在启动时减少振动和噪声的驱动装置，并实现与无传感器系统的平滑连接。 驱动装置22包括主反相器电路1，其将准三相交流电压施加到驱动形成制冷剂回路的制冷剂电动压缩机的驱动电动机21，检测流入电动机的电流的电流传感器6V和6W 以及基于来自电流传感器的输出执行无传感器系统的驱动和控制的控制电路23。 控制电路向电动机施加产生旋转磁场的预定起动电流并启动电动机，并且在加速到预定的连接频率之后，转移到无传感器系统的驱动和控制，并根据变化启动电流和连接频率 用压缩机的负载。
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公开(公告)号：US07109680B2
公开(公告)日：2006-09-19
申请号：US11047697
申请日：2005-02-02
申请人： Mamoru Kubo , Kenji Nojima
发明人： Mamoru Kubo , Kenji Nojima
IPC分类号： G05B19/404
CPC分类号： H02M7/53871 , F25B2600/021 , H02M1/32 , H02M2007/53876 , H02P27/06
摘要： An object is to provide an inverter device capable of realizing exact protection of the winding of a motor. An inverter device for generating a pseudo alternating current by switching a direct current to drive a motor, comprises a controller that executes vector control on the basis of a secondary current applied to the motor. The controller calculates a current density from the secondary current to execute a predetermined protection operation on the basis of the calculated current density. The controller imposes a restriction on the operation frequency of the motor on the basis of the current density.
摘要翻译： 本发明的目的是提供一种能够实现对电动机的绕组的精确保护的逆变器装置。 一种用于通过切换直流来驱动电动机来产生伪交流电的逆变器装置，包括基于施加到电动机的次级电流来执行矢量控制的控制器。 控制器根据二次电流计算出电流密度，以根据计算出的电流密度来执行预定的保护动作。 控制器基于电流密度对电动机的工作频率进行限制。
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公开(公告)号：US20050254275A1
公开(公告)日：2005-11-17
申请号：US11127207
申请日：2005-05-12
申请人： Kenji Nojima , Shigeharu Sasaki
发明人： Kenji Nojima , Shigeharu Sasaki
IPC分类号： H02J7/34 , H02M7/48 , H02P6/00 , H02M7/5387
CPC分类号： H02M7/48 , B60L3/003 , B60L3/0069 , B60L11/1803 , B60L15/007 , B60L2240/34 , B60L2240/527 , B60L2250/10 , B60L2270/20 , H01H2047/003 , H02J7/345 , Y02T10/645 , Y02T10/7005
摘要： An object is to provide an inverter device capable of detecting the welding of a switching device in early stages, and in summary, the inverter device is equipped with a parallel circuit of a charging circuit and a switch connected between a battery and an inverter module, and comprises a capacitor charged from the battery via the charging circuit; a resistor to discharge the capacitor; a serial circuit including resistors to detect a voltage after the switch; and a diode connected between a connection point of the serial circuit including the resistors on a positive line and a connection point of the capacitor, and directed forward to the capacitor side.
摘要翻译： 本发明的目的是提供一种能够在早期阶段检测开关装置的焊接的逆变器装置，总而言之，逆变器装置配备有充电电路的并联电路和连接在电池与逆变器模块之间的开关， 并且包括经由充电电路从电池充电的电容器; 用于放电电容器的电阻器; 串联电路，包括用于检测开关后电压的电阻; 连接在串联电路的连接点之间的二极管，该连接点包括正极上的电阻和电容器的连接点，并且指向电容器侧。
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公开(公告)号：US07439704B2
公开(公告)日：2008-10-21
申请号：US11127207
申请日：2005-05-12
申请人： Kenji Nojima , Shigeharu Sasaki
发明人： Kenji Nojima , Shigeharu Sasaki
IPC分类号： B60H1/32
CPC分类号： H02M7/48 , B60L3/003 , B60L3/0069 , B60L11/1803 , B60L15/007 , B60L2240/34 , B60L2240/527 , B60L2250/10 , B60L2270/20 , H01H2047/003 , H02J7/345 , Y02T10/645 , Y02T10/7005
摘要： An object is to provide an inverter device capable of detecting the welding of a switching device in early stages, and in summary, the inverter device is equipped with a parallel circuit of a charging circuit and a switch connected between a battery and an inverter module, and comprises a capacitor charged from the battery via the charging circuit; a resistor to discharge the capacitor; a serial circuit including resistors to detect a voltage after the switch; and a diode connected between a connection point of the serial circuit including the resistors on a positive line and a connection point of the capacitor, and directed forward to the capacitor side.
摘要翻译： 本发明的目的是提供一种能够在早期阶段检测开关装置的焊接的逆变器装置，总而言之，逆变器装置配备有充电电路的并联电路和连接在电池与逆变器模块之间的开关， 并且包括经由充电电路从电池充电的电容器; 用于放电电容器的电阻器; 串联电路，包括用于检测开关后电压的电阻; 连接在串联电路的连接点之间的二极管，该连接点包括正极上的电阻和电容器的连接点，并且指向电容器侧。
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公开(公告)号：US07388340B2
公开(公告)日：2008-06-17
申请号：US11523562
申请日：2006-09-20
申请人： Kenji Nojima
发明人： Kenji Nojima
IPC分类号： H02P21/04
摘要： An object is to provide a driving device capable of detecting a current of a motor without any trouble even in a low rotation speed/low load state to continue a sensor-less vector control, in a case where the motor is driven by the sensor-less vector control, and the driving device comprises: a main inverter circuit for applying a pseudo alternating voltage to a permanent magnet type motor M to drive the motor; a current sensor 6 which detects the current flowing through the motor; and a control circuit which controls the main inverter circuit. Based on an output of the current sensor, the control circuit separates the current flowing through the motor into a torque current component and a field current component to control commutation of the main inverter circuit by the sensor-less vector control. In a case where the motor is operated in a predetermined low rotation speed region and/or the motor is in a predetermined low load state, the field current component is passed in such a direction as to weaken a magnetic flux of a permanent magnet.
摘要翻译： 本发明的目的是提供一种驱动装置，即使在低转速/低负载状态下也能够无马达地检测电动机的电流，从而在电动机被传感器驱动的情况下继续进行无传感器矢量控制， 驱动装置包括：主逆变器电路，用于向永久磁铁型电动机M施加伪交流电压以驱动电动机; 电流传感器6，其检测流过马达的电流; 以及控制主逆变电路的控制电路。 基于电流传感器的输出，控制电路将通过电动机的电流分离成转矩电流分量和励磁电流分量，以通过无传感器矢量控制来控制主逆变器电路的换向。 在电动机在预定的低转速区域中操作和/或电动机处于预定的低负载状态的情况下，励磁电流分量沿着弱化永磁体的磁通量的方向通过。
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公开(公告)号：US20100320950A1
公开(公告)日：2010-12-23
申请号：US12866800
申请日：2009-03-10
申请人： Hidetoshi Inoue , Kenji Nojima
发明人： Hidetoshi Inoue , Kenji Nojima
IPC分类号： H02P6/14
CPC分类号： H02M7/53871 , H02M2007/53876
摘要： In a 2-shunt system, accurate sensorless vector control can be realized without increasing shunt resistors. There is disclosed an inverter device including an inverter main circuit obtained by connecting, in a three-phase bridge-like manner, three arms formed by coupling, in series with a direct-current power source, two switching elements which perform mutually opposite on/off operations, to apply three-phase pseudo alternating-current voltages of a three-phase PWM system to an electric motor; shunt resistors connected to the direct-current power source in series with at least two of the three arms of the inverter main circuit; and a controller for detecting currents flowing through the shunt resistors in a predetermined cycle to control the on/off operations of the switching elements of the inverter main circuit based on the detected currents. The controller converts, into the current value of a specific angle range, a current value detected at a time before approximately 180° corresponding to the specific angle range where the on-time of the switching elements is continuously not more than a predetermined value, and then uses the converted current value.
摘要翻译： 在2分流系统中，无需增加分流电阻即可实现精确的无传感器矢量控制。 公开了一种逆变器装置，其包括逆变器主电路，该逆变器主电路以三相桥式方式连接三个臂，其通过与直流电源串联耦合而形成的两个开关元件， 将三相PWM系统的三相模拟交流电压施加到电动机上; 连接到与逆变器主电路的三个臂中的至少两个串联的直流电源的分流电阻器; 以及控制器，用于以预定周期检测流过分流电阻器的电流，以基于检测到的电流来控制逆变器主电路的开关元件的接通/断开操作。 控制器将特定角度范围的当前值转换为对应于开关元件的接通时间不超过预定值的特定角度范围的大约180°之前的时间检测的电流值，以及 然后使用转换的当前值。
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