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11.发明授权System and method to extend synchronous operation of an active converter in a variable speed drive 有权扩展变频器中有源转换器的同步运行的系统和方法公开(公告)号：US07764041B2
公开(公告)日：2010-07-27
申请号：US11932280
申请日：2007-10-31
Applicant: Harold R. Schnetzka , Shreesha Adiga Manoor
Inventor： Harold R. Schnetzka , Shreesha Adiga Manoor
IPC: H02P27/04
CPC classification number: H02M1/12 , F25B49/025 , F25B2600/021 , H02M2001/123 , H02P27/08 , H02P29/50 , H02P2201/03 , H03L7/093 , H03L7/095 , H05K7/20936 , Y02B30/741
Abstract: Systems and methods for synchronous operation of variable speed drives having active converters include extending the synchronous operation of an active converter to the AC mains voltage during complete line dropout. A phase angle control circuit includes a squaring amplifier, a first phase-lock loop circuit associated and a second phase-lock loop circuit. The squaring amplifier receives the AC power source and outputs a rectangular output signal to a pair of phase lock loop (PLL) circuits. The first PLL circuit with a first lag-lead filter is configured with a high cutoff frequency to provide the converter stage with a phase angle parameter; and the second phase-lock loop circuit including a second lag-lead filter configured to have a low cutoff frequency to provide the lag-lead filter the capability of storing the phase angle of the mains voltage during mains interruption.
Abstract translation: 具有有源转换器的变速驱动器的同步操作的系统和方法包括在完整的线路断开期间将有源转换器的同步操作扩展到AC电源电压。 相位角控制电路包括平方放大器，相关的第一锁相环电路和第二锁相环电路。 平方放大器接收交流电源，并向一对锁相环（PLL）电路输出矩形输出信号。 具有第一滞后引线滤波器的第一PLL电路配置有高截止频率，以向转换器级提供相位角参数; 并且所述第二锁相环电路包括被配置为具有低截止频率的第二滞后引线滤波器，以提供所述滞后引线滤波器在电源中断期间存储所述电源电压的相位角的能力。
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公开(公告)号：US20090103336A1
公开(公告)日：2009-04-23
申请号：US12294183
申请日：2007-03-27
Applicant: Nobuhiro Nakamura
Inventor： Nobuhiro Nakamura
IPC: H02H7/125
CPC classification number: H02M1/32 , G01R31/028 , G01R31/42 , H02H7/122 , H02H7/16 , H02H9/001 , H02M1/36 , H02M5/458 , H02P2201/03
Abstract: The present invention provides a control apparatus for detecting an early stage short circuit between the terminals of an electrolytic capacitor, and detecting a short circuit between a load that is connected in parallel to the electrolytic capacitor, the apparatus performing appropriate processing before an adverse effect is inflicted on peripheral equipment. In the control apparatus, microcomputers switch on a second relay; an electrolytic capacitor is gradually charged via a current-limiting resistor; a first voltage detection control for detecting a voltage between terminals of the electrolytic capacitor is performed when a first set time period has elapsed after the second relay has been switched on; and a second voltage detection control for detecting a voltage between the terminals of the electrolytic capacitor is performed when a second set time period, which is longer than the first set time period, has elapsed after the second relay has been switched on.
Abstract translation: 本发明提供一种用于检测电解电容器的端子之间的早期短路并检测与电解电容器并联连接的负载之间的短路的控制装置，该装置在不利影响之前进行适当的处理 对外围设备造成的影响。 在控制装置中，微型计算机接通第二继电器; 电解电容器通过限流电阻逐渐充电; 当在第二继电器接通之后经过第一设定时间时，执行用于检测电解电容器端子之间的电压的第一电压检测控制; 并且当在第二继电器接通之后已经经过比第一设定时间长的第二设定时间段时，执行用于检测电解电容器的端子之间的电压的第二电压检测控制。
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公开(公告)号：US20080174393A1
公开(公告)日：2008-07-24
申请号：US11932479
申请日：2007-10-31
Applicant: Harold R. Schnetzka , Ivan Jadric , Steve Hoover , Kathleen S. Rogers , Mustafa Kemel Yanik
Inventor： Harold R. Schnetzka , Ivan Jadric , Steve Hoover , Kathleen S. Rogers , Mustafa Kemel Yanik
IPC: H01F27/10
CPC classification number: H02M1/12 , F25B49/025 , F25B2600/021 , H02M2001/123 , H02P27/08 , H02P29/50 , H02P2201/03 , H03L7/093 , H03L7/095 , H05K7/20936 , Y02B30/741
Abstract: A plastic liquid cooled variable speed drive or inductor provided. The cooler provides lightweight, space conservative, corrosive free cooling to the components as well as provides a mounting area for modules. A cooler can be mounted to the core of an inductor to absorb heat generated by the core losses.
Abstract translation: 提供塑料液冷式变速驱动器或电感器。 冷却器为组件提供轻便，空间保守，无腐蚀性的冷却，并为模块提供安装区域。 可以将冷却器安装到电感器的芯部以吸收由芯损耗产生的热量。
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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。
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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
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。
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Patent Agency Ranking
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
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。
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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
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。
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18.发明授权Arrangement for controlling the speed and rotary direction of a three-phase asynchronous motor 失效用于控制三相异步电动机的速度和旋转方向的布置
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
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。
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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
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。
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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
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.
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