公开(公告)号：US08917048B2

公开(公告)日：2014-12-23

申请号：US13719233

申请日：2012-12-19

申请人： Delta Electronics, Inc.

发明人： Yueh-Lung Huang

IPC分类号： H02P1/30 ,  H02P27/16 ,  H02P7/00 ,  H02P7/29

CPC分类号： H02P27/16 ,  H02P7/04 ,  H02P7/29 ,  H02P7/2913

摘要： A motor control device and a motor control method are disclosed herein, where the motor control device includes a signal conversion unit, a frequency multiplication unit, a profile generation circuit and a frequency converter unit. The signal conversion unit receives a rotation speed signal from a motor and converts the rotation speed signal into a digital signal. The frequency multiplication unit generates a frequency multiplication signal based on the digital signal. The profile generation circuit performs frequency division on the frequency multiplication signal to get a profile signal. The frequency converter unit generates a reference signal and compares the reference signal with the profile signal to output a motor control signal.

摘要翻译： 本文公开了电动机控制装置和电动机控制方法，其中电动机控制装置包括信号转换单元，倍频单元，配置文件生成电路和变频器单元。 信号转换单元从马达接收转速信号，并将转速信号转换为数字信号。 倍频单元基于数字信号产生倍频信号。 轮廓生成电路对倍频信号进行分频，得到轮廓信号。 变频器单元产生参考信号并将参考信号与轮廓信号进行比较以输出电动机控制信号。

公开(公告)号：US20080094021A1

公开(公告)日：2008-04-24

申请号：US11959411

申请日：2007-12-18

申请人： Filiberto Garza

发明人： Filiberto Garza

IPC分类号： H02P27/16 ,  G05F1/70 ,  H02P27/04

CPC分类号： H02P25/16 ,  H02P27/16

摘要： An AC power controller system applies three-phase AC operating power to an induction motor that drives a non-linear mechanical load. A primary low pass filter is connected in series between branch phase conductors and a power controller of the type that uses gate-controlled switching thyristors for controlling power to the motor. KVAR capacitors connected between the power controller and the induction motor phase windings form a secondary low pass filter across the controller output terminals. The primary and secondary low pass filters isolate the power controller and induction motor with respect to spurious noise and harmonics generated by local as well as remote sources, and also improve real power transfer efficiency from the power generating source to the induction motor by transforming the effective impedance of the power source and induction motor load.

摘要翻译： 交流电源控制器系统对驱动非线性机械负载的感应电动机施加三相交流工作电源。 主低通滤波器串联连接在分支相导体和使用门控开关晶闸管类型的功率控制器，用于控制电机功率。 连接在功率控制器和感应电动机相绕组之间的KVAR电容器在控制器输出端子之间形成二次低通滤波器。 主和次级低通滤波器将功率控制器和感应电机隔离在本地和远程源产生的杂散噪声和谐波上，并通过转换有效的功率来提高从发电源到感应电机的实际功率传输效率 电源阻抗和感应电机负载。

公开(公告)号：US5909367A

公开(公告)日：1999-06-01

申请号：US867035

申请日：1997-06-02

申请人： Jie Change

发明人： Jie Change

IPC分类号： H02M5/27 ,  H02P27/16 ,  H02M5/293

CPC分类号： H02M5/271 ,  H02M5/297 ,  H02P27/16

摘要： An AC--AC multi-module matrix PWM converter includes one to a plurality of phase banks within which are provided architecturally identical basic circuit modules of single phase output AC--AC matrix converters. Each basic converter module includes three-phase AC inputs and two output terminals. The modules may then be interconnected in series or parallel with other modules within a phase bank to increase the output voltage or current respectively of the phase bank. The differential power module structure and the differential phase PWM modulation scheme increases the output voltage by 15.5% in comparison with 120.degree. phase modulation. Individually designed and tested phase banks can be further connected to a higher power symmetric three phase system or multiphase system for various AC load and AC motor controls. The modular structure permits standardization of the power electronics design and manufacture at system level. The modular design permits using power components at lower voltage or current rating with low cost while obtaining higher power output through module integration.

摘要翻译： AC-AC多模块矩阵PWM转换器包括一个至多个相位组，其中提供了单相输出AC-AC矩阵转换器的架构上相同的基本电路模块。 每个基本转换器模块包括三相交流输入和两个输出端。 然后，模块可以与相位组内的其他模块串联或并联，以分别增加相位组的输出电压或电流。 与120°相位调制相比，差分功率模块结构和差分PWM调制方案将输出电压提高了15.5％。 单独设计和测试的相位库可以进一步连接到用于各种交流负载和交流电动机控制的较高功率对称三相系统或多相系统。 模块化结构允许在系统级别对电力电子设计和制造进行标准化。 模块化设计允许以较低的电压或额定电流以低成本使用功率元件，同时通过模块集成获得更高的功率输出。

公开(公告)号：US5151853A

公开(公告)日：1992-09-29

申请号：US668785

申请日：1991-03-13

申请人： Shinji Tatara ,  Masami Okayasu

发明人： Shinji Tatara ,  Masami Okayasu

IPC分类号： H02P27/16 ,  H02M5/27

CPC分类号： H02M5/271

摘要： A method of controlling a cycloconverter, for supplying an AC power having a given frequency to a converter group having at least two cascade-connected converters and controlling a firing angle of each of the converters, thereby converting the AC power supplied to the converter group into an AC power having a predetermined frequency, includes the steps of controlling an output voltage from a converter in one stage of the converter group to obtain an AC output voltage including a synthetic voltage of an AC voltage having an amplitude equal to a difference between a maximum output voltage of the converter and a DC voltage and a predetermined DC voltage in accordance with the polarity of a reference voltage signal having a predetermined frequency, controlling an output voltage from a converter in the other stage of the converter to obtain an AC output voltage obtained by subtracting the output from of the converter in one stage from the reference voltage signal, and continuously varying a voltage value of the DC voltage in accordance with the frequency of the reference voltage signal.

公开(公告)号：US4858100A

公开(公告)日：1989-08-15

申请号：US174903

申请日：1988-03-29

申请人： Shinji Tatara

发明人： Shinji Tatara

IPC分类号： H02M1/12 ,  H02M5/27 ,  H02P27/16

CPC分类号： H02M5/27 ,  H02M1/12 ,  H02P27/16

摘要： An electric power converter, in which a plurality of converters convert a first electric power having a first frequency into a second electric power having a second frequency, and the second electric power is supplied to a load such as an electric motor, and in which a correction controller changes a reference voltage to generate reference voltage signals to be supplied to the converters in order to shift firing phase angles of the converters, thereby preventing a generation of higher harmonics of integer orders of the first electric power.

摘要翻译： 一种电力转换器，其中多个转换器将具有第一频率的第一电力转换成具有第二频率的第二电力，并且所述第二电力被提供给诸如电动机的负载，并且其中 校正控制器改变参考电压以产生要提供给转换器的参考电压信号，以便转换转换器的点火相位角，从而防止产生第一电功率的整数次的高次谐波。

公开(公告)号：US4792741A

公开(公告)日：1988-12-20

申请号：US47475

申请日：1987-05-11

申请人： Takayoshi Matsuo ,  Keiu Kawasaki

发明人： Takayoshi Matsuo ,  Keiu Kawasaki

IPC分类号： H02M5/27 ,  H02M5/45 ,  H02P21/00 ,  H02P27/04 ,  H02P27/16 ,  H02P5/40

CPC分类号： H02M5/4505

摘要： The invention relates to a control unit to control a continuous cycloconverter of the non-circulating current type which performs frequency conversion of an AC power source using a semiconductor element a to perform commutation by the AC power source and variable speed operation of an AC motor. Sine/cosine waves as secondary magnetic flux directional signals are obtained by a sine/cosine wave generator based on the slip phase and the rotor phase of the motor; deviation between torque current set value supplied from a speed controller and torque current feedback value is outputted as torque voltage adjusted value by a torque current control element, and deviation between exciting current set value supplied from a magnetic flux controller and exciting current feedback value is outputted as exciting voltage adjusted value by an exciting current control element; the torque and exciting voltage adjusted values are converted into alternating voltage set values using the sine/cosine waves as parameters, and the torque current set value and the exciting current set value are converted into alternating current set values also using the sine/cosine waves as parameters; the alternating voltage set value and the alternating current set value converted are outputted to a control circuit to alternately operate switching of the semiconductor elements of positive and negative groups which constitute the cycloconverter, and the amplitude error and the phase error produced between the alternating current set value supplied to the cycloconverter and the alternating drive current actually supplied to the motor can be reduced significantly.

摘要翻译： 本发明涉及一种用于控制非循环电流型连续循环变换器的控制单元，其使用半导体元件a进行交流电源的频率转换，以通过交流电源进行换流和交流电动机的变速操作。 基于电动机的滑移相和转子相位的正弦/余弦波发生器获得作为次级磁通方向信号的正弦/余弦波; 由转矩电流控制元件作为转矩电压调整值输出从速度控制器提供的转矩电流设定值与转矩电流反馈值之间的偏差，并输出从磁通量控制器提供的励磁电流设定值与励磁电流反馈值之间的偏差 作为激励电流控制元件的励磁电压调整值; 将正弦/余弦波作为参数将转矩和励磁电压调整值转换为交流电压设定值，将转矩电流设定值和励磁电流设定值也转换为交流电流设定值，也可以使用正弦/余弦波作为 参数; 将交流电压设定值和交流设定值转换输出到控制电路，以交替地操作构成循环变换器的正极组和负极组的半导体元件的切换，以及在交流电设定之间产生的振幅误差和相位误差 提供给循环换流器的值和实际提供给马达的交流驱动电流可以显着降低。

公开(公告)号：US4766360A

公开(公告)日：1988-08-23

申请号：US911072

申请日：1986-09-24

申请人： Eiji Haraguchi ,  Hiroto Nakagawa ,  Akira Bando ,  Yoji Tanaka ,  Kenichi Ono ,  Hiroshi Kashiwazaki ,  Hiroshi Sugisaka

发明人： Eiji Haraguchi ,  Hiroto Nakagawa ,  Akira Bando ,  Yoji Tanaka ,  Kenichi Ono ,  Hiroshi Kashiwazaki ,  Hiroshi Sugisaka

IPC分类号： H02J3/28 ,  H02H7/06 ,  H02M5/27 ,  H02P9/00 ,  H02P27/16 ,  H02P5/40

CPC分类号： H02M5/27 ,  H02P27/16

摘要： An induction generator/motor system has an induction machine connected at its secondary side to a cyclo-converter. An induced voltage develops when the cyclo-converter pauses during a transient phenomenon occurring in the system. When the induced voltage exceeds a predetermined voltage range which covers the maximum output voltage derivable from the cyclo-converter, the polarity of thyristor converters of the cyclo-converter is switched such that the induced voltage is applied to a thyristor converter to be rendered conductive next in forward relationship therewith, thereby preventing occurrence of an overvoltage.

摘要翻译： 感应发电机/电动机系统具有在二次侧连接到循环转换器的感应电机。 当系统中发生瞬态现象时，循环转换器暂停时，产生感应电压。 当感应电压超过覆盖从循环转换器得到的最大输出电压的预定电压范围时，转换器的晶闸管转换器的极性被切换，使得感应电压被施加到晶闸管转换器以使其继续导通 与其正向关系，从而防止发生过电压。

公开(公告)号：US4652989A

公开(公告)日：1987-03-24

申请号：US770071

申请日：1985-08-28

申请人： Ryoichi Kurosawa ,  Takeo Shimamura

发明人： Ryoichi Kurosawa ,  Takeo Shimamura

IPC分类号： H02P27/16 ,  H02M5/27 ,  H02M5/257

CPC分类号： H02M5/273

摘要： A frequency converter apparatus is provided with a frequency converter coupled to an AC power supply and to a load. The frequency converter converts an AC input with a given input frequency into an AC output with a given output frequency. The frequency converter apparatus is further provided with a frequency reference circuit and a harmonic cancel circuit. The frequency reference circuit supplies a reference signal to the frequency converter so that the output frequency of the AC output follows the reference signal. The harmonic cancel circuit supplies a harmonic cancelling signal to the frequency reference circuit so that the prescribed order of the higher harmonic of the AC output is substantially cancelled according to the frequency, magnitude and phase of the harmonic cancelling signal.

摘要翻译： 变频器装置具有耦合到AC电源和负载的变频器。 变频器将具有给定输入频率的交流输入转换为具有给定输出频率的交流输出。 变频器装置还具有频率参考电路和谐波消除电路。 频率参考电路向变频器提供参考信号，使得AC输出的输出频率遵循参考信号。 谐波消除电路向频率参考电路提供谐波消除信号，使得根据谐波消除信号的频率，幅度和相位基本上消除AC输出的高次谐波的规定次序。

公开(公告)号：US3689813A

公开(公告)日：1972-09-05

申请号：US3689813D

申请日：1971-07-13

申请人： GEN MOTORS CORP

发明人： SAWYER ELBERT M ,  BOURBEAU FRANK J

IPC分类号： H02M5/27 ,  H02P27/16 ,  H02P5/40

CPC分类号： H02M5/271 ,  H02P27/16

摘要： A cycloconverter silicon controlled rectifier gate signal delay circuit for delaying the application of cycloconverter silicon controlled rectifier gate signals to the cycloconverter silicon controlled rectifiers next to be gated conductive to energize, in the opposite direction, a phase winding of a cycloconverter operated motor through which conduction has just been terminated. The anode-cathode electrodes of each of two oppositely poled silicon controlled rectifiers are connected in series with a coil and the parallel combination of a resistor and a capacitor across each phase winding of the motor. When conduction is to be terminated through a phase winding, the silicon controlled rectifier connected thereacross which is forward poled by the potential induced in the phase winding as the magnitude of phase current flow therethrough decreases is gated conductive. Respective magnetically operated reed-type switches, magnetically coupled to the magnetic field produced by the flow of current through the coil connected in series with the conducting silicon controlled rectifier, operate to delay the application of the cycloconverter gate signal to each of the cycloconverter silicon controlled rectifiers next to be gated conductive to energize the same phase winding of the motor in the opposite direction until phase current has reduced to substantially zero.

摘要翻译： 循环变换器可控硅整流栅信号延迟电路，用于延迟将循环转换器可硅控整流栅信号施加到旁路转换器可控硅整流器，旁路将被选通导电，以在相反方向上激励循环转换器操作的电动机的相绕组， 刚刚被终止。 两个相对极化的可控硅整流器中的每一个的阳极 - 阴极电极与线圈串联，并且在电动机的每个相绕组上并联一个电阻器和电容器。 当通过相绕组来导通时，被控制的可控硅整流器通过在相绕组中感应的电位正向极化，随着相电流流过其中的电流的下降，导通。 磁耦合到通过与导电硅控整流器串联连接的线圈的电流产生的磁场的磁操作簧片开关的作用是延迟将循环换流器门信号应用于每个循环换流器硅控制 旁路导通的整流器以相反的方向激励电动机的相同相绕组，直到相电流已经减小到基本为零。

公开(公告)号：US12081151B2

公开(公告)日：2024-09-03

申请号：US18186985

申请日：2023-03-21

申请人： Lutron Technology Company LLC

发明人： James P. Steiner ,  Dinesh Sundara Moorthy

IPC分类号： H02P27/05 ,  F21V33/00 ,  H01H47/02 ,  H02P1/24 ,  H02P25/04 ,  H02P27/16 ,  H04B3/54 ,  H05B47/16 ,  H05B47/175

CPC分类号： H02P25/04 ,  F21V33/0096 ,  H01H47/02 ,  H02P1/24 ,  H02P27/16 ,  H04B3/54 ,  H05B47/16 ,  H05B47/175 ,  H04B2203/5412

摘要： A load control device may control power delivered from a power source, such as an alternating-current (AC) power source, to at least two electrical loads, such as a lighting load and a motor load. The load control device may include multiple load control circuit, such as a dimmer circuit and a motor drive circuit, for controlling the power delivered to the lighting load and the motor load, respectively. The load control device may adjust the rotational speed of the motor load in a manner so as to minimize acoustic noise generated by the load control device and reduce the amount of time required to adjust the rotational speed of the motor load. The load control device may remain powered when one of the electrical loads (e.g., the lighting load) has been removed (e.g., electrically disconnected or uninstalled) and/or has failed in an open state (has “burnt out” or “blown out”).