专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JP2004282969A Control apparatus and method for ac motor 审中-公开
公开(公告)号：JP2004282969A
公开(公告)日：2004-10-07
申请号：JP2003074750
申请日：2003-03-19
申请人： Hitachi Home & Life Solutions Inc , Hitachi Industrial Equipment Systems Co Ltd , Hitachi Ltd , 日立ホーム・アンド・ライフ・ソリューション株式会社 , 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： H02P6/18 , H02P21/00 , H02P27/04
CPC分类号： H02P21/00 , H02P21/24
摘要： PROBLEM TO BE SOLVED: To provide a control apparatus for an AC motor capable of realizing highly accurate variable speed driving even at a high carrier frequency, in a drive without use of a means of directly detecting the rotor position and rotational speed of the AC motor as well as its phase current. SOLUTION: In detecting an electric current from a DC power supply of an inverter for driving the motor, a value near the middle time of each conduction interval is sampled for a current which intermittently passes in a pulse shape. On the basis of the sampled value, applied voltage or frequency to the motor is controlled. COPYRIGHT: (C)2005,JPO&NCIPI

2. 发明专利

JP2004064902A Controller for synchronous motor, and apparatus using it 有权
标题翻译：同步电机的控制器和使用它的设备
公开(公告)号：JP2004064902A
公开(公告)日：2004-02-26
申请号：JP2002220588
申请日：2002-07-30
申请人： Hitachi Home & Life Solutions Inc , Hitachi Ltd , 日立ホーム・アンド・ライフ・ソリューション株式会社 , 株式会社日立製作所
发明人： KAWABATA YUKIO , ENDO TSUNEHIRO , TAKAKURA YUHACHI , SAKAMOTO KIYOSHI
IPC分类号： D06F33/02 , F24F11/02 , F25B1/00 , H02P21/00 , H02P27/04
摘要： PROBLEM TO BE SOLVED: To provide an excellent synchronous motor controller which detects the step out by suppressing the current increase at the step out of the motor.
SOLUTION: This synchronous motor controller calculates an exciting current from the motor current detected by a current detection means, and decides a voltage command using a motor power generation constant, an exciting current command, and the above exciting current, in regard to the output voltage of an inverter circuit. The amount of voltage correction is made so that the exciting current command and the above exciting current may accord with each other. This amount of voltage correction is compared with a predetermined specified value, thereby quickly detecting the step out of the synchronous motor.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供一种优异的同步电动机控制器，其通过抑制在电动机外的步骤中的电流增加来检测失步。
解决方案：该同步电动机控制器根据电流检测装置检测的电动机电流来计算励磁电流，并且根据电动机发电常数，励磁电流指令和上述励磁电流来决定电压指令逆变电路的输出电压。进行电压校正的量，使得励磁电流指令和上述励磁电流可以彼此一致。将该电压校正量与规定的规定值进行比较，从而快速地检测出同步电动机的步骤。版权所有（C）2004，JPO

3. 发明专利

JP2004048868A Speed controller for synchronous motor 有权
公开(公告)号：JP2004048868A
公开(公告)日：2004-02-12
申请号：JP2002200800
申请日：2002-07-10
申请人： Hitachi Home & Life Solutions Inc , Hitachi Ltd , 日立ホーム・アンド・ライフ・ソリューション株式会社 , 株式会社日立製作所
发明人： IWAMICHI YOSHINAO , ENDO TSUNEHIRO , KAWABATA YUKIO , SAKAMOTO KIYOSHI , TAKAKURA YUHACHI
IPC分类号： H02P6/18 , H02P21/00 , H02P27/04 , H02P27/06 , H02P7/63
摘要： PROBLEM TO BE SOLVED: To rotate a motor at high speed in condition that a control system is stable without using a magnetic position sensor and a current sensor. SOLUTION: This speed controller gets an electrical angle frequency command ω1* from a revolution command ωr*, gets the amount ▵ω1 of revision from the difference between Iq* and Iqc, gets ω1c by adding up ω1* and ▵ω1, gets an AC phase θdc by integrating ▵ω1 by an integrator 8, gets Iqc by sampling the current IO by the detection of a current detector 6 with a current sampler 91 and reproducing an AC current with a current reproducer 32 and converting the coordinates of the reproduced current with a dq coordinate converter 93, based on the AC phase θdc, gets Iq* from Iqc with an Iq generator 10, gets application voltage commands Vdc* and Vqc* with a voltage command computing unit 12, based on Id*, Iq*, and ω1*, gets three-phase AC voltage commands vu*-vw* form the applied voltage with a dq inverter 13, generates a PWM signal with a PWM generator 14, based on the three-phase AC voltage command, and controls the inverter 3 by this PWM signal. COPYRIGHT: (C)2004,JPO

4. 发明专利

JP2008131770A Power converting device 有权
标题翻译：电源转换器件
公开(公告)号：JP2008131770A
公开(公告)日：2008-06-05
申请号：JP2006315120
申请日：2006-11-22
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： AOYANAGI SHIGEHISA , IWAJI YOSHITAKA , SAKAMOTO KIYOSHI , TOBARI KAZUAKI
IPC分类号： H02M7/00
CPC分类号： H02M7/53871 , H02M7/5395 , H02M2001/0009
摘要： PROBLEM TO BE SOLVED: To suppress a harmonic component while DC busbar current is highly precisely detected. SOLUTION: A power converting device is provided with a PWM control part 9 comparing three-phase AC signals Vum * , Vvm * and Vwm * with a triangular wave carrier signal and generating a pulse width modulation wave, a power converter main circuit part 3 driving a switching element by a pulse width modulation wave and converting a DC voltage into a three-phase AC voltage and DC detecting parts 5 and 6 detecting the DC busbar current and reproducing a phase current on a DC input side of the power converter main circuit part. The device is also provided with a voltage command change part 8 adding a correction signal causing an average value of correction quantity at a voltage command change period to be zero or almost zero to the three-phase AC signal by setting an odd number of three or more unit periods when the triangular wave carrier signal monotonously increases or monotonously decreases as a voltage command change period. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：在高精度检测直流母线电流的同时抑制谐波分量。解决方案：电力转换装置设有PWM控制部分9，比较三相AC信号Vum * ，Vvm * 和Vwm * < SP>具有三角波载波信号并产生脉宽调制波，功率转换器主电路部分3通过脉宽调制波驱动开关元件并将DC电压转换为三相AC电压和DC检测部分5 以及6检测直流母线电流并再现电力转换器主电路部分的直流输入侧的相电流。该装置还设置有电压指令改变部分8，其加上校正信号，该校正信号使电压指令改变周期的校正量的平均值为零或几乎为零，通过设置三位或三位当三角波载波信号随着电压指令变化周期单调增加或单调减小时的更多单位周期。版权所有（C）2008，JPO＆INPIT

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

JP2010011636A Disconnection detecting method and power conversion apparatus 有权
标题翻译：断路检测方法和功率转换装置
公开(公告)号：JP2010011636A
公开(公告)日：2010-01-14
申请号：JP2008168039
申请日：2008-06-27
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： SUZUKI HISANORI , NOTOHARA YASUO , SAKAMOTO KIYOSHI
IPC分类号： H02M7/48 , H02P6/12 , H02P21/00 , H02P27/04
CPC分类号： H02M7/53873 , H02M1/32 , H02M7/5395 , H02M2001/0009
摘要： PROBLEM TO BE SOLVED: To provide a power conversion apparatus which reliably detects disconnection during driving irrespective of the magnitude and operation state of a current command value.
SOLUTION: The apparatus is provided with a power conversion circuit composed of switching elements converting DC power into AC power, a load connected to an output side of the power conversion circuit, a means detecting a DC current flowing in a DC side of the power conversion circuit, a voltage command value generating means controlling an operation of the switching element of the power conversion circuit, and a disconnection detection means. The disconnection detection means determines disconnection of the load or a failure of the switching element of the power conversion circuit by using a DC current detection value in a period when current of a maximum-phase voltage or a minimum-phase voltage in the power conversion circuit flows to DC current.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种在行驶期间可靠地检测断开的电力转换装置，而与当前指令值的大小和操作状态无关。解决方案：该装置设置有电力转换电路，该电力转换电路由将DC电力转换为AC电力的开关元件，连接到电力转换电路的输出侧的负载，检测在DC侧流动的DC电流的装置功率转换电路，控制电力转换电路的开关元件的动作的电压指令值生成单元以及断线检测单元。断线检测装置通过在电力转换电路中的最大相电压或最小相电压的电流的周期内使用直流电流检测值来确定电力转换电路的开关元件的负载的断开或故障，流向直流电流。版权所有（C）2010，JPO＆INPIT

7. 发明专利

JP2009055693A Power converting device 有权
标题翻译：电源转换器件
公开(公告)号：JP2009055693A
公开(公告)日：2009-03-12
申请号：JP2007219195
申请日：2007-08-27
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： AOYANAGI SHIGEHISA , IWAJI YOSHITAKA , TOBARI KAZUAKI , SAKAMOTO KIYOSHI , RI TOSHO
IPC分类号： H02P27/06 , H02M7/48 , H02P21/00 , H02P27/04
CPC分类号： H02M7/53873 , H02M2001/0009 , H02P21/00
摘要： PROBLEM TO BE SOLVED: To solve the problem that a detection error occurs when a deviation happens in detection timing of each phase of three-phase current. SOLUTION: A power converting device comprises a power converter for converting direct current to three-phase alternative current or three-phase alternative current to direct current, a means for detecting the AC side current of the power converter, a means for providing an AC side current command of the power converter, and a current control unit for calculating an AC side voltage command of the power converter so that the current command coincides with the detected current value, wherein the power converter is controlled by pulse width modulation on the basis of the voltage command. The current command is used instead of the detected current value to at least one phase of the three-phase detected current value on the AC side. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了解决当在三相电流的每相的检测定时中发生偏差时发生检测误差的问题。解决方案：电力转换装置包括用于将直流电流转换为三相可替换电流或三相交流电流至直流电的功率转换器，用于检测功率转换器的AC侧电流的装置，用于提供电力转换器的交流侧电流指令;以及电流控制单元，用于计算电力转换器的交流侧电压指令，使得电流指令与检测到的电流值一致，其中功率转换器由脉冲宽度调制电压指令的基础。使用电流指令代替检测到的电流值到AC侧的三相检测电流值的至少一个相位。版权所有（C）2009，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

JP2011050198A Driving system of permanent magnet synchronous motor 有权
标题翻译：永磁同步电动机驱动系统
公开(公告)号：JP2011050198A
公开(公告)日：2011-03-10
申请号：JP2009197571
申请日：2009-08-28
申请人： Hitachi Industrial Equipment Systems Co Ltd , 株式会社日立産機システム
发明人： SAKAI TOSHIBUMI , IWAJI YOSHITAKA , SAKAMOTO KIYOSHI , TAGUCHI YOSHIYUKI , KANEKO DAIGO
IPC分类号： H02P6/18
CPC分类号： H02P9/30 , H02M7/53873 , H02P6/18 , H02P9/009 , H02P21/18
摘要： PROBLEM TO BE SOLVED: To solve the problem wherein applied voltages in three phases differ, when identical high-frequency voltage command is generated on orthogonal two axes and accuracy on the estimation of the position of an initial magnetic pole, using the detecting value of a generated pulsating current deteriorates in a controller and a control method achieving control for a synchronous motor. SOLUTION: When a higher-harmonic voltage is alternated to a positive value and a negative value is applied to the permanent magnet synchronous motor, applied voltage phases are changed over successively at each 120° and are applied in three phases. The pulsating current generated by applying the higher-harmonic voltage is detected at a timing, when a fixed time Δt passes after the output voltage in at least one phase changes from a state in which all the output voltages in the three phases come to the positive values or the negative values. A DC resistance connected to a DC bus or a phase current sensor is used for current detection. A magnetic pole position estimation means calculates the magnetic pole position of the rotor of the permanent magnet synchronous motor, based on the difference between a change amount of the positive side and the change amount of the negative side which are obtained from the detected current value. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题为了解决三相中施加的电压不同的问题，当在正交的两个轴上产生相同的高频电压指令并且在估计初始磁极的位置时的精度，使用检测产生的脉动电流的值在控制器中劣化，并且控制方法实现同步电动机的控制。
解决方案：当高次谐波电压交替为正值，负值施加到永磁同步电动机时，施加的电压相位每120°连续改变并分三个阶段施加。在固定时间Δt在至少一相的输出电压从三相全部的输出电压变为正的状态变化之后的定时被检测出施加高次谐波电压而产生的脉动电流值或负值。连接到直流母线或相电流传感器的直流电阻用于电流检测。磁极位置估计装置基于从检测到的电流值获得的正极侧的变化量与负侧的变化量之差，来计算永久磁铁同步电动机的转子的磁极位置。版权所有（C）2011，JPO＆INPIT

10. 发明专利

JP2010288359A Inverter controlling apparatus and air conditioner and washer using the same 有权
标题翻译：逆变器控制装置和空调器及使用它的洗衣机
公开(公告)号：JP2010288359A
公开(公告)日：2010-12-24
申请号：JP2009139769
申请日：2009-06-11
申请人： Hitachi Appliances Inc , Hitachi Industrial Equipment Systems Co 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
发明人： HATSUSE WATARU , NOTOHARA YASUO , RI TOSHO , AOYANAGI SHIGEHISA , SAKAMOTO KIYOSHI
IPC分类号： H02P27/06 , H02M7/48 , H02P27/08
CPC分类号： H02P27/06 , H02M7/53875 , H02M2001/0009 , H02P23/0004 , H02P27/08
摘要： PROBLEM TO BE SOLVED: To reduce a reactive current passing through a motor. SOLUTION: A phase current passing through a motor is calculated on the basis of average direct-current bus current obtained by filtering a direct-current bus current, and an instantaneous phase current for a single phase. The phase current is used, to calculate a voltage command for voltage to be applied to an inverter. COPYRIGHT: (C)2011,JPO&INPIT

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式