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公开(公告)号：US20080088291A1
公开(公告)日：2008-04-17
申请号：US11842988
申请日：2007-08-22
IPC分类号： G05F1/40
CPC分类号： H02P21/0003
摘要： An electric power converter apparatus having a function of converting a power source voltage into an AC voltage having an arbitrary frequency and maintaining an output voltage constant even on the power source variation, in which the electric power converter apparatus decreases the output voltage when the output voltage drops to equal to or less than a predetermined value, afterward, increases the output voltage in response to a predetermined rate of change when the power source voltage rises.
摘要翻译： 一种具有将电源电压转换成具有任意频率的交流电压并且即使在电力变化时也保持输出电压恒定的功能的电力转换装置，其中电力变换装置在输出电压 下降到等于或小于预定值，然后当电源电压上升时响应于预定变化率增加输出电压。
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2.发明授权Electric power converter suppressing output voltage variation due to input voltage fluctuation 有权电力转换器抑制输入电压波动引起的输出电压变化公开(公告)号：US07869232B2
公开(公告)日：2011-01-11
申请号：US11842988
申请日：2007-08-22
IPC分类号： H02M5/458 , H02M7/5395
CPC分类号： H02P21/0003
摘要： An electric power converter apparatus having a function of converting a power source voltage into an AC voltage having an arbitrary frequency and maintaining an output voltage constant even on the power source variation, in which the electric power converter apparatus decreases the output voltage when the output voltage drops to equal to or less than a predetermined value, afterward, increases the output voltage in response to a predetermined rate of change when the power source voltage rises.
摘要翻译： 一种具有将电源电压转换成具有任意频率的交流电压并且即使在电力变化时也保持输出电压恒定的功能的电力转换装置，其中电力变换装置在输出电压 下降到等于或小于预定值，然后当电源电压上升时响应于预定变化率增加输出电压。
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公开(公告)号：US06646896B2
公开(公告)日：2003-11-11
申请号：US10098055
申请日：2002-03-15
IPC分类号： H02M545
CPC分类号： H02M5/458 , H02M1/36 , H02M2001/322 , H02P23/26
摘要： For use in a system in which a capacitor is connected between an AC machine and an inverter in order to improve the power factor, a controller for an AC machine capable of even when the overvoltage occurs due to the self-excitation between the AC machine and the capacitor, reactivating stably the inverter to continue the running. When the operation of the inverter is stopped and then the inverter is reactivated, the manipulation of starting the switching of the inverter is performed after a DC voltage of the inverter has been decreased to the operating voltage in the running, whereby the reactivation is performed stably without stopping the system.
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公开(公告)号：US06611125B2
公开(公告)日：2003-08-26
申请号：US09791680
申请日：2001-02-26
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。
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公开(公告)号：US07906933B2
公开(公告)日：2011-03-15
申请号：US11764820
申请日：2007-06-19
IPC分类号： H02P27/04
CPC分类号： H02P27/04
摘要： An induction motor drive includes a plurality of inverters, a changeover switch which changes over outputs of the plurality of inverters to be supplied to one induction motor and a changeover controller which controls the changeover switch on the basis of a failure detection signal of one inverter to change over from the one inverter to another inverter to start the other inverter so that the induction motor is driven. The changeover controller includes a frequency/phase detector which always detects a frequency and a phase of a terminal voltage of the induction motor and a starting frequency/phase setting device which controls a frequency and a phase at starting of the other inverter in accordance with detected values of the frequency/phase detector when the failure signal is inputted.
摘要翻译： 感应电动机驱动器包括多个逆变器，转换开关，其转换为提供给一个感应电动机的多个逆变器的输出;以及转换控制器，其基于一个逆变器的故障检测信号来控制转换开关 从一个变频器切换到另一个变频器，启动另一个变频器，使感应电动机被驱动。 切换控制器包括频率/相位检测器，其总是检测感应电动机的端子电压的频率和相位;以及起动频率/相位设置装置，其根据检测到的控制另一个逆变器启动时的频率和相位 输入故障信号时的频率/相位检测器的值。
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公开(公告)号：US20080007196A1
公开(公告)日：2008-01-10
申请号：US11764820
申请日：2007-06-19
IPC分类号： H02P27/04
CPC分类号： H02P27/04
摘要： An induction motor drive includes a plurality of inverters, a changeover switch which changes over outputs of the plurality of inverters to be supplied to one induction motor and a changeover controller which controls the changeover switch on the basis of a failure detection signal of one inverter to change over from the one inverter to another inverter to start the other inverter so that the induction motor is driven. The changeover controller includes a frequency/phase detector which always detects a frequency and a phase of a terminal voltage of the induction motor and a starting frequency/phase setting device which controls a frequency and a phase at starting of the other inverter in accordance with detected values of the frequency/phase detector when the failure signal is inputted.
摘要翻译： 感应电动机驱动器包括多个逆变器，转换开关，其转换为提供给一个感应电动机的多个逆变器的输出;以及转换控制器，其基于一个逆变器的故障检测信号来控制转换开关 从一个变频器切换到另一个变频器，启动另一个变频器，使感应电动机被驱动。 切换控制器包括频率/相位检测器，其总是检测感应电动机的端子电压的频率和相位;以及起动频率/相位设置装置，其根据检测到的控制另一个逆变器启动时的频率和相位 输入故障信号时的频率/相位检测器的值。
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公开(公告)号：US20080265832A1
公开(公告)日：2008-10-30
申请号：US12108538
申请日：2008-04-24
IPC分类号： H02P27/06
CPC分类号： H02P1/029 , H02P4/00 , H02P27/08 , H02P29/025
摘要： A motor driving apparatus including inverter apparatuses, inverter control circuits, and a plurality of inverter control apparatuses for performing variable-speed driving of a single motor, breakers each of which being provided between each inverter apparatus and the motor, the inverter control circuits being connected in parallel to each other. Here, a motor rotation frequency/phase detection circuit of each inverter control circuit is set up on a closer side to the motor than the breakers, then frequency and phase of a terminal voltage at the motor are detected and inputted into failure-time input frequency/phase setting circuits regardless of close/open of each breaker. This feature allows computation by the failure-time input frequency/phase setting circuits to be carried out at all times, thereby making it possible to shorten a computation time needed for computing inverter-apparatus start frequency/phase.
摘要翻译： 一种电动机驱动装置，包括逆变器装置，逆变器控制电路和用于执行单个电动机的变速驱动的多个逆变器控制装置，每个逆变器装置和电动机之间设置的断路器，逆变器控制电路被连接 彼此平行。 这里，每个逆变器控制电路的电动机旋转频率/相位检测电路设置在比断路器更靠近电动机的一侧，然后检测电动机端子电压的频率和相位并将其输入到故障时输入频率 /相位设置电路，不管每个断路器的闭合/打开。 该特征允许总是执行故障时输入频率/相位设置电路的计算，从而可以缩短计算逆变器装置起始频率/相位所需的计算时间。
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公开(公告)号：US4825131A
公开(公告)日：1989-04-25
申请号：US115038
申请日：1987-10-30
CPC分类号： B60T8/1705 , B60L9/22 , B60L2200/26 , B60L2220/12 , B60T2270/602 , Y02T10/7258
摘要： A DC voltage on an electric car stringing is supplied to a variable voltage and variable frequency PWM inverter so as to be converted into a three-phase alternating current which is supplied to a plurality of three-phase induction motors. The motors are connected to different wheels to drive an electric car. The inverter is controlled on the basis of an operating frequency command determined by adding or subtracting a slip frequency command to or from a motor speed and a voltage command proportional to the operating frequency command. On the other hand, a motor current command is set and compared with a maximum current value of currents of the plurality of motors, and the slip frequency command is corrected in accordance with a difference therebetween. In a constant torque region of the electric car, a correction value increasing in proportion to the speed is then added to the motor current command, so that torque of motors other than a motor to which the maximum current flows compensates for a decrease in torque caused as the speed increases to improve constant torque characteristics.
摘要翻译： 将电动车串联的直流电压提供给可变电压和可变频率的PWM逆变器，以便转换为提供给多个三相感应电动机的三相交流电。 电动机连接到不同的车轮以驱动电动汽车。 基于通过向电动机速度加上或减去转差频率指令而确定的运行频率指令来控制逆变器，以及与运转频率指令成正比的电压指令。 另一方面，设定电动机电流指令并与多个电动机的电流的最大电流值进行比较，并且根据它们之间的差异校正转差指令。 在电动汽车的恒转矩区域中，与电动机电流指令成比例地增加与速度成比例地增加的校正值，使得除最大电流流动的电动机以外的电动机的转矩补偿转矩的降低 随着速度的增加，可以提高恒转矩特性。
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公开(公告)号：US4335337A
公开(公告)日：1982-06-15
申请号：US59559
申请日：1979-07-23
CPC分类号： B60L3/106 , B60L3/102 , B60L2200/26 , B60L2220/12 , B60L2220/42 , Y02T10/646 , Y02T10/648
摘要： A control system for an electric motor vehicle adapted to be driven by a group of induction motors, comprises a converter for producing an a.c. output to energize the group of induction motors, a frequency command circuit for producing a value representing a minimum number of rotations among those of at least two induction motors of the group added with a slip frequency in a power running mode of the vehicle on one hand and a value representing a maximum number of revolutions among those of at least two given induction motors of the group subtracted by the slip frequency in a regenerative braking mode, respectively, the values being utilized as frequency control commands, and a frequency control circuit for controlling the output for controlling the output frequency of the converter in dependence on the frequency control commands, thereby to improve the adhesion performance of the electric motor vehicle.
摘要翻译： 一种用于由一组感应电动机驱动的用于电动车辆的控制系统，包括用于产生交流电的转换器。 输出以对该组感应电动机通电;一个频率指令电路，用于产生表示车辆的动力运行模式中加上滑差频率的组中的至少两个感应电动机之间的最小转数的值 以及代表组中的至少两个给定感应电动机的最大转数的值分别由再生制动模式中的转差频率减去作为频率控制命令的值，以及用于控制的频率控制电路 用于根据频率控制命令控制转换器的输出频率的输出，从而提高电动车辆的粘附性能。
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公开(公告)号：US4672525A
公开(公告)日：1987-06-09
申请号：US824551
申请日：1986-01-23
申请人： Akira Horie , Shigetoshi Okamatsu
发明人： Akira Horie , Shigetoshi Okamatsu
摘要： An inverter using gate turn-off thyristors (GTOs) is controlled by means of pulse width modulation (PWM) to control the speed of an induction motor. If the current flowing through the induction motor becomes an overcurrent which can still be cut off by the GTOs, a gate off signal is supplied to respective GTOs to interrupt the overcurrent. If any one of arms respectively corresponding to phases is short-circuited, a gate on signal is supplied to all GTOs to distribute the short circuit current among the arms, and the main circuit is interrupted by a high-speed breaker. At this time, a simultaneous gate on signal is given priority. If the simultaneous gate on signal is present, a simultaneous gate off signal is disabled. Owing to this configuration, destruction of the GTOs due to consecutive guard operation can be prevented.
摘要翻译： 使用栅极截止晶闸管（GTO）的逆变器通过脉宽调制（PWM）来控制，以控制感应电机的速度。 如果流过感应电动机的电流成为仍然被GTO断开的过电流，则向相应的GTO提供栅极截止信号以中断过电流。 如果分别对应于相位的臂中的任何一个短路，则向所有GTO提供栅极导通信号以在臂之间分配短路电流，并且主电路被高速断路器中断。 此时，同时门开通信号被优先考虑。 如果存在同时门极导通信号，则禁止同时门极关闭信号。 由于这种配置，可以防止由于连续的保护操作导致的GTO的破坏。
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