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1. 发明授权

US06229719B1 Method of inverter control and apparatus of the same 有权
标题翻译：变频器控制方法及其设备
公开(公告)号：US06229719B1
公开(公告)日：2001-05-08
申请号：US09655489
申请日：2000-09-05
申请人： Keijiro Sakai , Toshiaki Okuyama , Hiroshi Fujii
发明人： Keijiro Sakai , Toshiaki Okuyama , Hiroshi Fujii
IPC分类号： H02M540
CPC分类号： H02P21/18 , H02P21/22 , H02P21/26
摘要： An inverter control apparatus includes an instruction calculator which receives a speed instruction and a particular component of a current of a motor to obtain an output frequency instruction and output voltage instructions of an inverter and a current estimator to estimate, according to a reference phase obtained by integrating a current detection value of one phase of an ac motor and an output frequency instruction thereof, currents of other phases of the ac motor. The current estimator includes a uvw/dq converter which converts a fixed coordinate system into a rotating coordinate system, a dq/uvw converter which is connected to the uvw/dq converter and which converts the rotating coordinate system into the fixed coordinate system, and a closed loop to input an output from the dq/uvw converter to the uvw/dq converter. This system can therefore estimate currents of other phases according to the motor current of one phase.
摘要翻译：逆变器控制装置包括指令计算器，其接收速度指令和电动机的电流的特定分量，以获得反相器和电流估计器的输出频率指令和输出电压指令，以根据由集成交流电动机的一相的电流检测值和其输出频率指令，交流电动机的其他相的电流。电流估计器包括将固定坐标系转换为旋转坐标系的uvw / dq转换器，连接到uvw / dq转换器并将旋转坐标系转换成固定坐标系的dq / uvw转换器，闭环将dq / uvw转换器的输出输入到uvw / dq转换器。因此，该系统可以根据一相的电机电流来估计其他相的电流。

2. 发明授权

US06496397B2 Inverter device 有权
标题翻译：变频器
公开(公告)号：US06496397B2
公开(公告)日：2002-12-17
申请号：US09826857
申请日：2001-04-06
申请人： Keijiro Sakai , Toshiaki Okuyama , Kinya Nakatsu , Seiji Ishida , Hiroshi Fujii , Junji Kato , Masahiro Hiraga
发明人： Keijiro Sakai , Toshiaki Okuyama , Kinya Nakatsu , Seiji Ishida , Hiroshi Fujii , Junji Kato , Masahiro Hiraga
IPC分类号： H02M7537
CPC分类号： H02M7/48 , H02M7/53875 , H02P27/08
摘要： An inverter device has a three-phase inverter for converting DC electric power into AC power for supplement to an AC electric motor and a control device operatively associated therewith, and the control device includes a phase current detection section for outputting a phase current waveform based on a DC input current and an operational processor section for performing operational processing for control of said inverter device based on the phase current waveform. Thereby, the inverter device can be constructed to be very compact.
摘要翻译：逆变器装置具有三相逆变器，用于将直流电力转换为交流电，以补充交流电动机和与其可操作地相关联的控制装置，并且控制装置包括相电流检测部分，用于输出基于直流输入电流和操作处理器部分，用于基于相电流波形执行用于控制所述逆变器装置的操作处理。因此，逆变器装置可以被构造成非常紧凑。

3. 发明授权

US5475293A Method for measuring characteristic constants of alternating current motor and controller thereof based on said method 失效
标题翻译：基于所述方法测量交流电动机的特性常数及其控制器的方法
公开(公告)号：US5475293A
公开(公告)日：1995-12-12
申请号：US121896
申请日：1993-09-16
申请人： Keijiro Sakai , Tsunehiro Endo , Toshiaki Okuyama , Hiroshi Fujii
发明人： Keijiro Sakai , Tsunehiro Endo , Toshiaki Okuyama , Hiroshi Fujii
IPC分类号： H02P21/00 , H02P21/04 , H02P21/14 , H02P5/34
CPC分类号： H02P21/04 , H02P21/16 , H02P21/34 , H02P2207/01
摘要： An inverter corrects an output voltage in accordance with the magnitude of output voltage error due to a dead time and an ON-state voltage drop in power elements so as to energize an AC motor in a manner of single phase alternating current excitation, by calculating an active component of current Iq and a reactive component of current Id from the phase .theta. of an excitation voltage vector and a detected instantaneous current value iu, and by measuring characteristic constants of the motor, including a combined resistance (r.sub.1 +r.sub.2) and a combined leakage inductance (l.sub.1 +l.sub.2), from an excitation voltage command value Vc.sub.1, Id and Iq. The measured values are used as the control constants for a speed sensorless vector control. Further, the resistances r.sub.1, r.sub.2, and a self-inductance L.sub.1, which are control constants, can be obtained based on the component in a primary voltage vector direction of a primary current vector Iq' and the component .pi./2 delayed from the primary voltage vector direction of the primary current vector Id'. In this way, the characteristic constants can be accurately measured without any inverter output voltage sensor.
摘要翻译：逆变器根据由于功率元件的死区时间和导通状态电压降引起的输出电压误差的大小来校正输出电压，以便以单相交流激励的方式对AC电动机通电，通过计算电流Iq的有效分量和来自激发电压矢量的相位θ和检测到的瞬时电流值iu的电流Id的无功分量，以及通过测量电动机的特性常数，包括组合电阻（r1 + r2）和组合电阻漏电感（l1 + I2），从励磁电压指令值Vc1，Id和Iq。测量值用作无速度传感器矢量控制的控制常数。此外，作为控制常数的电阻r1，r2和自感L1可以基于一次电流矢量Iq'的一次电压矢量方向的分量和从主电流矢量延迟的分量pi / 2来获得初级电流矢量Id'的电压矢量方向。以这种方式，可以在没有任何变频器输出电压传感器的情况下精确测量特性常数。

4. 发明授权

US06657412B2 Pulse width modulation method, pulse width modulator and power converter 有权
公开(公告)号：US06657412B2
公开(公告)日：2003-12-02
申请号：US09941873
申请日：2001-08-30
申请人： Seiji Ishida , Keijiro Sakai , Toshiaki Okuyama , Hiroshi Fujii , Hiroyuki Tomita , Tatsuo Ando , Yuhachi Takakura , Hideo Kimura
发明人： Seiji Ishida , Keijiro Sakai , Toshiaki Okuyama , Hiroshi Fujii , Hiroyuki Tomita , Tatsuo Ando , Yuhachi Takakura , Hideo Kimura
IPC分类号： G05B1128
CPC分类号： H03K7/08 , H02M7/53871
摘要： In detecting an output current of a power converter based on a DC current Idc of the power converter, the pulse width of the DC current Idc becomes narrower when the pulse width of a line voltage is narrower, and its detection becomes difficult. A voltage command correction unit 9 according to the present invention corrects voltage commands such that pulse width of a line voltage becomes zero when the pulse width of the line voltage is less than the minimum pulse width, not to output a line pulse, and an error generated by the correction is integrated. This integrated error is added to the line voltage in the next time, and the integrated pulse width of the line voltage is outputted when the pulse width becomes larger than or equal to the minimum pulse width.

5. 发明授权

US5053690A Control method of pulse width modulation inverter and pulse width modulation inverter system 失效
标题翻译：脉宽调制逆变器和脉宽调制逆变器系统的控制方法
公开(公告)号：US5053690A
公开(公告)日：1991-10-01
申请号：US441964
申请日：1989-11-28
申请人： Nobuyoshi Mutoh , Keijiro Sakai , Hiroshi Fujii , Kenji Nantoh
发明人： Nobuyoshi Mutoh , Keijiro Sakai , Hiroshi Fujii , Kenji Nantoh
IPC分类号： H02M7/48 , H02P21/00 , H02P23/00 , H02P27/04 , H02P27/06 , H02P27/08
CPC分类号： H02P27/08 , H02M7/53873 , H02P23/0077 , H02M2007/53876
摘要： In spatial vector control of a pulse width modulation (PWM) inverter adapted for variable speed drive of an induction motor, a difference vector between magnetic flux vectors occurring during adjacent sampling periods is generated by synthesizing a zero vector and voltage vectors in such a manner that a resultant voltage vector always includes as a component a minimum unit of a zero vector or a voltage vector, whereby even when the angular speed of rotation of the magnetic flux changes, the switching frequency of the PWM inverter is prevented from decreasing and the current ripple is reduced.

6. 发明授权

US5023538A PWM inverter apparatus for controlling rotating magnetic flux in a.c. motors 失效
标题翻译：用于控制直流电机中的旋转磁通量的PWM逆变器装置电机
公开(公告)号：US5023538A
公开(公告)日：1991-06-11
申请号：US380039
申请日：1989-07-14
申请人： Nobuyoshi Mutoh , Keijiro Sakai , Akiteru Ueda , Hiroshi Fujii
发明人： Nobuyoshi Mutoh , Keijiro Sakai , Akiteru Ueda , Hiroshi Fujii
IPC分类号： H02M7/48 , H02M7/529 , H02P21/00 , H02P21/14 , H02P27/04
CPC分类号： H02M7/529 , H02P21/141
摘要： A PWM inverter apparatus used for driving an a.c. motor, including an inverter having an output part connected to the a.c. motor and switching elements on-off controlled by a PWM signal. The inverter apparatus also includes a part for receiving, at an interval of a given sampling period, status command information specifying a desired status of a vector of a rotating magnetic flux in the a.c. motor; a part for predicting, on the basis of at least the status command information received at each sampling time, the status of the vector of the rotating magnetic flux which will be produced at a next sampling time; a part for calculating a difference vector between the status of the vector of the rotating magnetic flux specified by the status command information received at a present sampling time and the predicted status of the vector of the rotating magnetic flux which will be produced at a next sampling time; a part for synthesizing the difference vector using selected reference voltage vectors from among a plurality of predetermined reference voltage vectors; and a part for generating a PWM signal for controlling the switching elements of the inverter so as to produce the selected reference voltage vectors.

7. 发明授权

US06611125B2 Method for calculating inertia moment and driver for electric motor 失效
标题翻译：计算电机惯性矩和驱动器的方法
公开(公告)号：US06611125B2
公开(公告)日：2003-08-26
申请号：US09791680
申请日：2001-02-26
申请人： Koichiro Nagata , Toshiaki Okuyama , Hiroshi Fujii , Shigetoshi Okamatsu
发明人： Koichiro Nagata , Toshiaki Okuyama , Hiroshi Fujii , Shigetoshi Okamatsu
IPC分类号： H02P528
CPC分类号： H02P21/06
摘要： An electric motor is rotated at a velocity &ohgr;1. After that, during &Dgr;t12 seconds, the 1st acceleration is executed at a rate (&ohgr;2−&ohgr;1)/&Dgr;t12. During this acceleration, the torque &tgr;m is calculated so as to execute the time integration. After the lapse of &Dgr;t12, the integrated result is stored. Next, the velocity is set to be &ohgr;3. After that, during &Dgr;t34 seconds, the 2nd acceleration is executed at a rate (&ohgr;4−&ohgr;3)/&Dgr;t34. At the 2nd acceleration, although the integration-starting and the integration-terminating velocities are each equal to those at the 1st acceleration, the acceleration rate is modified (&ohgr;3=&ohgr;1, &ohgr;4=&ohgr;2, &Dgr;t12≠&Dgr;t34). During this acceleration, the torque &tgr;m is calculated so as to execute the time integration, after the lapse of &Dgr;t34, storing the integrated result. The inertia J is calculated using the 1st and 2nd integrated results.
摘要翻译：电动机以速度ω1旋转。之后，在DELTA12秒期间，第一加速度以速率（ω2-ω1）/ DELTAt12执行。在该加速期间，计算转矩taum以便执行时间积分。经过DELTAt12后，存储了积分结果。接下来，将速度设为ω3。之后，在DELTA34秒期间，以速率（ω4-ω3）/ DELTAt34执行第二加速度。在第二加速度下，虽然积分开始和积分终止速度均等于第一加速度时的加速度，但是加速度被修改（ω=ω，ω，ω=ω，DELTAt12，ΔTATA34）。在该加速期间，计算转矩taum，以便在DELTAt34经过DELTAt34之后执行时间积分，从而存储积分结果。使用第1和第2综合结果计算惯性J。

8. 发明授权

US06556464B2 PWM converter system 失效
标题翻译： PWM转换器系统
公开(公告)号：US06556464B2
公开(公告)日：2003-04-29
申请号：US09956257
申请日：2001-09-20
申请人： Keijirou Sakai , Toshiaki Okuyama , Kinya Nakatsu , Seiji Ishida , Hiroshi Fujii , Junji Kato , Masahiro Hiraga
发明人： Keijirou Sakai , Toshiaki Okuyama , Kinya Nakatsu , Seiji Ishida , Hiroshi Fujii , Junji Kato , Masahiro Hiraga
IPC分类号： H02M75387
CPC分类号： H02M1/4233 , H02M1/4216 , H02M2001/0012 , Y02B70/126
摘要： A single-phase PWM converter system in accordance with the present invention employs a sample-and-hold circuit which samples and holds a direct current in the state wherein one of two-phase gate signals of a positive or negative side arm is ON and the other phase is OFF, determines the sign of an output of the sample-and-hold circuit according to the two-phase gate condition, detects a phase current at the input side of the converter, and controls a voltage at the input side of the converter so that the detected current value agrees with a power supply current command. Further, a three-phase PWM converter system in accordance with the present invention detects the effective current and the ineffective current of the power supply current from the direct current, and based on the values, controls the PWM converter so that the sine wave power supply current whose power supply power factor is 1 is provided.
摘要翻译：根据本发明的单相PWM转换器系统采用采样和保持电路，其采样和保持直流电流，其中正或负侧臂的两相门信号之一为ON，其他相位为OFF，根据两相门条件确定采样保持电路的输出的符号，检测转换器输入侧的相电流，并控制转换器的输入侧的电压转换器，使得检测到的电流值与电源电流指令一致。此外，根据本发明的三相PWM转换器系统从直流电流检测电源电流的有效电流和无效电流，并且基于在该值上，控制PWM转换器，使得提供功率因数为1的正弦波电源电流。

9. 发明授权

US08546299B2 Color-developing composition and recording material containing the same 有权
标题翻译：显色组合物和含有它们的记录材料
公开(公告)号：US08546299B2
公开(公告)日：2013-10-01
申请号：US12997791
申请日：2009-06-18
申请人： Hiroshi Fujii , Tadashi Kawakami , Satoshi Kodama , Kazumi Jyujyo
发明人： Hiroshi Fujii , Tadashi Kawakami , Satoshi Kodama , Kazumi Jyujyo
IPC分类号： B41M5/333 , C09D11/00
CPC分类号： B41M5/3336 , B41M5/155 , B41M5/327 , B41M5/3275 , B41M5/3333 , B41M5/3335
摘要： Provided is a recording material with a superior heat resistance and having a low content of a dihydroxydiphenylsulfone derivative, and a color-developing composition for producing the recording material. With the use of this color-developing composition, a recording material with a superior heat resistance at the background part can be provided and the content of a dihydroxydiphenylsulfone derivative, such as 4,4′-dihydroxydiphenylsulfone, in the color-developing composition can be reduced to 2% by mass or less, or further to 1% by mass or less.
摘要翻译：提供具有优异的耐热性和低含量的二羟基二苯基砜衍生物的记录材料和用于制备记录材料的显色组合物。通过使用该显色组合物，可以提供在背景部分具有优异的耐热性的记录材料，并且显色组合物中的二羟基二苯基砜衍生物如4,4'-二羟基二苯基砜的含量可以是降低到2质量％以下，进一步降低到1质量％以下。

10. 发明授权

US08310802B2 Metallization film capacitor having divided electrode with fuse 失效
标题翻译：金属化薄膜电容器，分为带有保险丝的电极
公开(公告)号：US08310802B2
公开(公告)日：2012-11-13
申请号：US12279860
申请日：2007-08-27
申请人： Hiroshi Fujii , Takuya Kyouda , Hiroki Takeoka
发明人： Hiroshi Fujii , Takuya Kyouda , Hiroki Takeoka
IPC分类号： H01G2/00 , H01G4/08
CPC分类号： H01G4/015 , H01G4/18 , H01G4/32 , Y02T10/7022
摘要： A metallization film capacitor that achieves both high heat resistance and high withstand voltage at the same time. A metal-deposited electrode is formed on a PEN film in each of a pair of metalized films. These metalized films are wound such that the metal-deposited electrodes face each other via the dielectric film in between. A metalized contact electrode is formed on both end faces of these wound metalized films to configure the metallization film capacitor. A divisional electrode is provided on the metal-deposited electrode. In addition, a fuse is coupled to this divisional electrode for providing a self-maintaining function. Pass rate a/b of a deposition pattern is set to 4.0 or smaller, where ‘a’ is the fuse width, and ‘b’ is the length of the divisional electrode in a lengthwise direction of the metalized films.
摘要翻译：同时实现高耐热性和高耐压的金属化薄膜电容器。在一对金属化膜中的每一个上的PEN膜上形成金属沉积电极。这些金属化膜被卷绕，使得金属沉积电极之间经由介电膜彼此面对。在这些卷绕的金属化膜的两个端面上形成金属化接触电极，以构成金属化膜电容器。在金属沉积电极上设置分割电极。此外，保险丝耦合到该分割电极以提供自我维持功能。沉积图案的合格率a / b设定为4.0以下，其中a为保险丝宽度，b为金属化膜的长度方向上的分割电极的长度。

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