公开(公告)号：US06567282B1

公开(公告)日：2003-05-20

申请号：US10100065

申请日：2002-03-19

Applicant: Akira Kikuchi ,  Motoo Futami ,  Yasuyuki Sugiura ,  Naoshi Sugawara ,  Kouichi Miyazaki

Inventor： Akira Kikuchi ,  Motoo Futami ,  Yasuyuki Sugiura ,  Naoshi Sugawara ,  Kouichi Miyazaki

IPC: H02M545

CPC classification number: H02P9/305 ,  H02P21/18 ,  H02P21/26 ,  H02P2201/03

Abstract: An apparatus for controlling a synchronous generator having a converter. A voltage detector detects a terminal voltage of a stator of the synchronous generator. A current detector detects a current flowing through the stator. A rotor position estimating part estimates a rotor position of the synchronous generator from the detected voltage and current. An active power detector detects an active power of the synchronous generator. A reactive power detector detects a reactive power of the synchronous generator or a terminal voltage detector detects an effective value of a terminal voltage of the stator. An active power controller adjusts a q-axis current command to control the active power, and a reactive power controller or terminal voltage controller adjusts a d-axis current command to control the reactive power or terminal voltage.

Abstract translation: 一种用于控制具有转换器的同步发电机的装置。 电压检测器检测同步发电机的定子的端子电压。 电流检测器检测流过定子的电流。 转子位置估计部件根据检测到的电压和电流来估计同步发电机的转子位置。 有功功率检测器检测同步发电机的有功功率。 无功功率检测器检测同步发电机的无功功率，或端子电压检测器检测定子的端电压的有效值。 有功功率控制器调节q轴电流指令以控制有功功率，无功功率控制器或端子电压控制器调节d轴电流指令以控制无功功率或端子电压。

公开(公告)号：US4758771A

公开(公告)日：1988-07-19

申请号：US924414

申请日：1986-10-29

Applicant: Suzuo Saito ,  Yasuhiro Ando

Inventor： Suzuo Saito ,  Yasuhiro Ando

IPC: H02P25/04 ,  H02P27/04 ,  H02P27/06 ,  H02P7/36

CPC classification number: H02P27/06 ,  H02P2201/03

Abstract: This invention relates to an apparatus for driving an ac motor that includes a current controlled type power converter which produces an ac current or power having an arbitrary frequency at its output, a first switch provided to connect the power converter and the ac motor, and a second switch provided to connect an independent ac power supply and the ac motor. The apparatus operates in two switching modes, namely, switching from the ac power supply to the power converter and switching from the power converter to the ac power supply. To perform such a switching operation smoothly, the apparatus of the invention a voltage phase detector circuit for detecting the voltage phase of the ac power supply, detector circuit for detecting a value proportional to the power factor of the ac motor, a holding circuit for holding the value proportional to the power factor for a predetermined time, a current phase detector for detecting the current phase of the ac motor on the basis of the voltage phase of the ac power supply and the value proportional to the power factor, and a switching circuit for causing the first and second switches to be operative in synchronism with the phase detection signal.

Abstract translation: 本发明涉及一种用于驱动交流电动机的装置，该交流电动机包括电流控制型电力转换器，该电流控制型电力转换器在其输出端产生交流电或具有任意频率的电力，第一开关用于连接电力转换器和交流电动机;以及 第二开关用于连接独立的交流电源和交流电动机。 该装置以两种开关模式工作，即从交流电源切换到功率转换器，并从功率转换器切换到交流电源。 为了平稳地执行这种切换操作，本发明的装置用于检测交流电源的电压相位的电压相位检测器电路，用于检测与交流电动机的功率因数成比例的值的检测器电路，用于保持 与预定时间内的功率因数成比例的值，用于根据交流电源的电压相位和与功率因数成正比的值检测交流电动机的电流相位的电流相位检测器，以及开关电路 用于使第一和第二开关与相位检测信号同步地工作。

公开(公告)号：US4417193A

公开(公告)日：1983-11-22

申请号：US290195

申请日：1981-08-05

Applicant: Akio Hirata

Inventor： Akio Hirata

IPC: H02P27/04 ,  H02P7/00 ,  H02P25/04 ,  H02P27/06 ,  H02P5/40

CPC classification number: H02P27/06 ,  H02P2201/03

Abstract: In a method and apparatus for controlling a speed of an AC motor energized by a source of alternating current through a frequency converter, a limiter responsive to input voltage and input current is provided for decreasing a primary frequency at a rate faster than a rate of decrease in a number of revolutions of the motor when the source is interrupted for a short interval and for accelerating the motor with a primary current thereof limited to a predetermined value while maintaining the primary frequency and the primary current in a predetermined relation.

Abstract translation: 在用于控制由通过变频器的交流电源供电的交流电动机的速度的方法和装置中，提供响应于输入电压和输入电流的限幅器，用于以比速率更快的速率降低主频率 当电源以短时间间隔中断时，电动机的转数以及将初级电流限制在预定值上的电动机加速，同时保持初级频率和初级电流为预定关系。

公开(公告)号：US4296367A

公开(公告)日：1981-10-20

申请号：US952385

申请日：1978-10-18

Applicant: Akio Hirata

Inventor： Akio Hirata

IPC: H02M5/44 ,  H02P3/18 ,  H02P9/42 ,  H02P23/04 ,  H02P27/06 ,  H02P5/28 ,  H02P5/34 ,  H02P5/36

CPC classification number: H02P27/06 ,  H02P23/04 ,  H02P2201/03 ,  H02P27/047

Abstract: A frequency converter applies a variable voltage with a variable frequency to an AC motor coupled with a load. At least one frequency region is set up for the variable frequency. The ratio of a percentage input voltage expressed in terms of a percentage of the rated input voltage of the AC motor, to a corresponding percentage input frequency expressed in terms of a percentage of the rated input frequency of the AC motor, is set less than 1 within the frequency region thus set. Also an apparatus for the AC motor control provided.

Abstract translation: 变频器将可变频率应用于与负载耦合的交流电动机。 为可变频率设置至少一个频率区域。 将以交流电动机的额定输入电压的百分比表示的百分比输入电压与以交流电动机的额定输入频率的百分比表示的对应百分比输入频率的比率设定为小于1 在这样设定的频率范围内。 还提供了用于交流电动机控制的装置。

公开(公告)号：US4145647A

公开(公告)日：1979-03-20

申请号：US880636

申请日：1978-02-23

Applicant: Kaj Nielsen ,  Nils H. Nygaard

Inventor： Kaj Nielsen ,  Nils H. Nygaard

IPC: H02P23/00 ,  H02P27/06 ,  H02P5/40

CPC classification number: H02P27/06 ,  H02P23/24 ,  H02P2201/03 ,  H02P27/047

Abstract: The invention relates to a DC control circuit for controlling the speed and rotary direction of a three-phase asynchronous motor. The circuit has an inverter section having three branches with a pair of switch elements in series in each of the branches. The inverter section has a common extinguishing switch element in shunt with the three branches. A speed determining frequency generator is responsive to the voltage of the DC supply and an ignition signal generator for operating the inverter switch elements is driven by the frequency generator. An extinction signal generator for operating the common extinguishing switch element is also driven by the frequency generator. A reversing circuit section between the ignition signal generator and the inverter branches has two states for exchanging the control lines of the inverter switch elements in at least two of the branches. A latching unit for selecting either of the two reversing states is connected to and subservient to the frequency generator to prevent initiations of reversals prior to the operation of the extinguishing switch element during each cycle of operation.

Abstract translation: 本发明涉及一种用于控制三相异步电动机的转速和旋转方向的直流控制电路。 电路具有一个具有三个分支的逆变器部分，每个分支具有串联的一对开关元件。 逆变器部分具有与三个分支分流的公共灭弧开关元件。 速度确定频率发生器响应于直流电源的电压，用于操作逆变器开关元件的点火信号发生器由频率发生器驱动。 用于操作公共灭火开关元件的消光信号发生器也由频率发生器驱动。 点火信号发生器和反相器分支之间的反转电路部分具有用于在至少两个分支中交换逆变器开关元件的控制线的两种状态。 用于选择两个反转状态中的任何一个的闭锁单元连接到并且从属于频率发生器，以防止在每个操作周期期间灭弧开关元件的操作之前的反转的启动。

公开(公告)号：US4099108A

公开(公告)日：1978-07-04

申请号：US716205

申请日：1976-08-20

Applicant: Tadashi Okawa ,  Yasuo Matsuda ,  Hiroshi Hayashida ,  Takeo Maeda

Inventor： Tadashi Okawa ,  Yasuo Matsuda ,  Hiroshi Hayashida ,  Takeo Maeda

IPC: H02P27/06 ,  H02P5/40

CPC classification number: H02P27/06 ,  H02P2201/03 ,  H02P27/047

Abstract: An induction motor is operated by a power supply of variable voltage and variable frequency. The voltage and frequency of the variable-voltage variable-frequency power supply is changed by a control circuit to accelerate or decelerate the induction motor. For slowly controlling the speed of the induction motor, the ratio of the output voltage to the output frequency of the variable-voltage variable-frequency power supply is maintained substantially constant. The control circuit includes a voltage correcting means which, in response to a command for sudden acceleration or deceleration of the speed of the motor, corrects the output voltage of the power supply in accordance with the acceleration or deceleration rate and the prevailing magnitude of the output frequency of the variable-voltage variable-frequency power supply.

Abstract translation: 感应电动机由可变电压和可变频率的电源操作。 可变电压可变频率电源的电压和频率由控制电路改变，以加速或减速感应电动机。 为了缓慢地控制感应电动机的速度，可变电压可变频率电源的输出电压与输出频率的比例保持基本恒定。 控制电路包括电压校正装置，响应于马达速度的突然加速或减速的命令，根据加速或减速率和输出的主要幅度来校正电源的输出电压 可变电压可变频率电源的频率。

公开(公告)号：US3568021A

公开(公告)日：1971-03-02

申请号：US3568021D

申请日：1969-05-15

Applicant: GEN ELECTRIC

Inventor： TURNBULL FRED G

IPC: H02M1/06 ,  H02M1/12 ,  H02M5/44 ,  H02M5/45 ,  H02M7/505 ,  H02M7/521 ,  H02P27/06 ,  H02M7/52

CPC classification number: H02P27/06 ,  H02M5/4505 ,  H02P2201/03

Abstract: A low cost, solid-state variable input voltage inverter recharges each commutating capacitor through an impedance and a controllable semiconductor switch, preferably a resistor and a transistor in series with a commutating capacitor, to the value of a source of fixed or predetermined voltage to assure reliable commutation over the entire range of input voltage control. The inverter is constructed in single and multiphase versions and is especially suited for industrial applications such as a wide range variable speed AC motor drive.

公开(公告)号：US3560834A

公开(公告)日：1971-02-02

申请号：US3560834D

申请日：1968-12-26

Applicant: BORG WARNER

Inventor： STUDTMANN GEORGE H

IPC: G05F1/12 ,  H02M1/08 ,  H02P25/04 ,  H02P27/06 ,  H02P27/08 ,  H02P5/40

CPC classification number: H02P27/06 ,  H02M1/08 ,  H02P27/047 ,  H02P27/08 ,  H02P2201/03

Abstract: AN OSCILLATOR APPLIES TIMING SIGNALS TO AN INVERTER LOGIC ARRANGEMENT FOR GOVERNING THE FREQUENCY OF THE INVERTER OUTPUT A-C VOLTAGE SUPPLIED TO A MOTOR. THE AMPLITUDE OF THE A-C VOLTAGE APPLIED TO THE MOTOR IS ADJUSTED BY SUITABLE CONTROL MEANS WHICH RECEIVES A REGULATING SIGNAL FROM A COMPARATOR. A FIRST SIGNAL CHANNEL INCLUDES A FEEDBACK NETWORK, AND APPLIES TO THE COMPARATOR A FIRST CONTROL SIGNAL WHICH INDICATES THE EFFECTIVE AMPLITUDE OF THE INVERTER VOLTAGE. A SECOND SIGNAL CHANNEL IS CONNECTED BETWEEN THE OSCILLATOR AND THE COMPARATOR TO PROVIDE A SECOND CONTROL SIGNAL RELATED TO THE FREQUENCY OF THE OSCILLATOR OUTPUT. THE COMPARATOR OUTPUT SIGNAL IS A FUNCTION OF BOTH AMPLITUDE AND FREQUENCY, AND DRIVES THE CONTROL MEANS TO MAIN A PRESET RATIO BETWEEN AMPLITUDE AND FREQUENCY OF THE A-C VOLTAGE PASSED TO THE MOTOR.

公开(公告)号：US3317805A

公开(公告)日：1967-05-02

申请号：US31804963

申请日：1963-10-22

Applicant: AMERICAN MACH & FOUNDRY

Inventor： MARTIN KAY ,  THOMAS MCCALLUM

IPC: G06F7/68 ,  H02M1/084 ,  H02P27/06

CPC classification number: H02P27/06 ,  G06F7/68 ,  H02M1/0845 ,  H02P27/047 ,  H02P2201/03

公开(公告)号：WO2016165719A1

公开(公告)日：2016-10-20

申请号：PCT/DK2016/050102

申请日：2016-04-11

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： NIELSEN, John Godsk ,  ANDERSEN, Søren ,  HELLE, Lars ,  DOAN, Duy Duc

IPC: H02P27/00 ,  H02P29/02 ,  H02M7/493

CPC classification number: H02M5/4585 ,  F03D9/255 ,  H02J3/386 ,  H02M7/493 ,  H02P27/00 ,  H02P27/04 ,  H02P29/02 ,  H02P29/032 ,  H02P2101/15 ,  H02P2201/03 ,  Y02E10/76

Abstract: A method of controlling a full-scale converter system in which both the grid-side inverter unit and the generator-side inverter unit have a series-connection of parallel inverters and form a generator-side and grid-side voltage-center-point at a voltage level between the inverters connected in series. The voltage-center-points are electrically connected by a center-line conductor. Conversion operation with a de-rated maximum active power-output is performed in response to at least one of (i) the grid-side inverter and (ii) the generator-side inverter of the first converter-string being disabled, by disabling active power production of at least one of (i) the grid-side inverter and (ii) the generator-side inverter of the second converter-string, or correspondingly reducing active power production of the second converter-string, thereby preventing a compensation current along the center-line conductor.

Abstract translation: 一种全格式转换器系统的控制方法，其中，电网侧逆变器单元和发电机侧逆变单元都具有并联逆变器的串联连接，并且形成发电机侧和电网侧电压中心点 串联连接的逆变器之间的电压电平。 电压中心点由中心线导体电连接。 响应于（i）电网侧逆变器和（ii）禁用第一转换器串的发电机侧逆变器中的至少一个，通过禁用有效功率输出来执行具有降额最大有功功率输出的转换操作 （i）电网侧逆变器和（ii）第二转换器串的发电机侧逆变器中的至少一个的功率产生，或相应地减小第二转换器串的有功功率产生，从而防止沿着 中线导体。