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公开(公告)号：US08878480B2
公开(公告)日：2014-11-04
申请号：US13559267
申请日：2012-07-26
摘要： In sequentially selecting and driving two phases of the three-phase stator windings of a synchronous motor, detect a speed electromotive voltage of a de-energized phase, relate the speed electromotive voltage to rotor position information beforehand, then count rotor position information backward based on the detected the speed electromotive voltage to estimate rotor position; and then detect rotation speed from the change rate of the rotor position information so as to achieve highly accurate position and speed control.
摘要翻译： 在顺序地选择和驱动同步电动机的三相定子绕组的两相中，检测去电相位的速度电动势，预先将速动电压与转子位置信息相关联，然后基于 检测出速度电动势估计转子位置; 然后从转子位置信息的变化率检测转速，以实现高精度的位置和速度控制。
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公开(公告)号：US20130243625A1
公开(公告)日：2013-09-19
申请号：US13816296
申请日：2011-07-26
摘要： A synchronous electric motor drive system capable of driving at speeds near zero is provided. An energization mode determination unit switches six energization modes successively based on a terminal potential detected of the de-energized phase of a three-phase synchronous electric motor or on a stator winding wire connection point potential (neutral point potential) detected of the three-phase synchronous transmission unit. A voltage command correction unit corrects by a correction amount ΔV an applied voltage command destined for the synchronous electric motor to supply the synchronous electric motor with a repeated waveform of a positive pulse, negative pulse, and zero voltage as a line voltage waveform of the energized phases in each of the six energization modes, the positive pulse voltage being polarized to cause the synchronous electric motor to generate a forward rotation torque, the negative pulse voltage causing the synchronous electric motor to generate a reverse rotation torque.
摘要翻译： 提供能够以接近零的速度行驶的同步电动机驱动系统。 通电模式确定单元基于检测到三相同步电动机的去电相位的终端电位或者检测到的三相同步电动机的定子绕组线连接点电位（中性点电位），连续地切换六个通电模式 同步传输单元。 电压指令校正单元通过校正量DeltaV来校正用于同步电动机的施加电压指令，以向正向脉冲，负脉冲和零电压的重复波形供给同步电动机作为通电的线电压波形 在六个通电模式中的每一个相位中，正脉冲电压被极化以使同步电动机产生正向转矩，负脉冲电压引起同步电动机产生反向转矩。
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公开(公告)号：US20130057193A1
公开(公告)日：2013-03-07
申请号：US13559267
申请日：2012-07-26
IPC分类号： H02P6/00
摘要： In sequentially selecting and driving two phases of the three-phase stator windings of a synchronous motor, detect a speed electromotive voltage of a de-energized phase, relate the speed electromotive voltage to rotor position information beforehand, then count rotor position information backward based on the detected the speed electromotive voltage to estimate rotor position; and then detect rotation speed from the change rate of the rotor position information so as to achieve highly accurate position and speed control.
摘要翻译： 在顺序地选择和驱动同步电动机的三相定子绕组的两相中，检测去电相位的速度电动势，预先将速动电压与转子位置信息相关联，然后基于 检测出速度电动势估计转子位置; 然后从转子位置信息的变化率检测转速，以实现高精度的位置和速度控制。
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公开(公告)号：US08305019B2
公开(公告)日：2012-11-06
申请号：US12708352
申请日：2010-02-18
申请人： Kazuaki Tobari , Shigehisa Aoyagi , Kentaro Oi
发明人： Kazuaki Tobari , Shigehisa Aoyagi , Kentaro Oi
IPC分类号： H02P21/14
摘要： When output voltage V1 of an electric power converter reaches a prescribed voltage V1*ref, a difference between V1 and V1*ref is integrated to correct a commanded torque to τo* (τ*=τo*+Δτ).
摘要翻译： 当电力转换器的输出电压V1达到规定电压V1 * ref时，V1和V1 * ref之间的差被积分，以将指令转矩修正为τo*（τ* =τo* +＆Dgr;τ）。
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公开(公告)号：US20100231148A1
公开(公告)日：2010-09-16
申请号：US12708352
申请日：2010-02-18
申请人： Kazuaki TOBARI , Shigehisa Aoyagi , Kentaro Ol
发明人： Kazuaki TOBARI , Shigehisa Aoyagi , Kentaro Ol
摘要： When output voltage V1 of an electric power converter reaches a prescribed voltage V1*ref, a difference between V1 and V1*ref is integrated to correct a commanded torque to τo* (τ*=τo*+Δτ).
摘要翻译： 当电力转换器的输出电压V1达到规定电压V1 * ref时，V1和V1 * ref之间的差被积分，以将指令转矩修正为τo*（τ* =τo* +＆Dgr;τ）。
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公开(公告)号：US20090058331A1
公开(公告)日：2009-03-05
申请号：US12193209
申请日：2008-08-18
IPC分类号： H02P23/00
CPC分类号： H02M7/53873 , H02M2001/0009 , H02P21/00
摘要： A semiconductor power converter includes a power converter for converting direct current to three-phase alternating current or vice versa; a means for detecting a current in an alternating current side of the power converter; a means for providing a current reference in the alternating current side of the power converter; a current controller for calculating a voltage reference in the alternating current side of the power converter to match the current reference and a value of the detected current; and a pulse width modulation means for controlling the power converter through pulse width modulation based on the voltage reference, wherein the current reference is used in place of the value of the detected current for at least one phase current among three phase currents in the alternating current side.
摘要翻译： 半导体功率转换器包括用于将直流电流转换为三相交流电的功率转换器，反之亦然; 用于检测电力转换器的交流侧的电流的装置; 用于在电力转换器的交流侧提供电流基准的装置; 电流控制器，用于计算所述功率转换器的交流侧的电压参考以匹配所述电流基准和所述检测电流的值; 以及脉冲宽度调制装置，用于通过基于参考电压的脉冲宽度调制来控制功率转换器，其中使用电流参考来代替交流电流中的三相电流中的至少一相电流的检测电流的值 侧。
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公开(公告)号：US20060055362A1
公开(公告)日：2006-03-16
申请号：US11205907
申请日：2005-08-17
申请人： Kazuaki Tobari , Kiyoshi Sakamoto , Tsunehiro Endo , Yoshitaka Iwaji , Yukio Kawabata , Shigehisa Aoyagi
发明人： Kazuaki Tobari , Kiyoshi Sakamoto , Tsunehiro Endo , Yoshitaka Iwaji , Yukio Kawabata , Shigehisa Aoyagi
IPC分类号： H02P6/00
摘要： A vector control system for a permanent magnet synchronous motor, using a current control equivalent output value, a frequency instruction value, a current detection value, an inference phase error value, and a motor constant, identifies a motor resistance equivalent or a resistance setting error equivalent. Next, the vector control unit, using the identified value, corrects a set value R* equivalent of a voltage instruction calculation unit and a n inference phase error calculation unit. Thereby, a vector control system for a permanent magnet synchronous motor can realize a robust control characteristic for changing of a resistance constant of a motor in a low rotation speed area under position sensor-less control. Further, a vector control system for a permanent magnet synchronous motor can be applied in common in a system performing inexpensive current detection.
摘要翻译： 用于永磁同步电动机的矢量控制系统使用电流控制等效输出值，频率指令值，电流检测值，推断相位误差值和电动机常数来识别电动机电阻等效或电阻设定误差 当量。 接下来，使用识别值的矢量控制单元校正电压指令计算单元和n推定相位误差计算单元的设定值R *等效值。 由此，用于永磁同步电动机的矢量控制系统可实现用于在无位置传感器控制下在低转速区域中改变电动机的电阻常数的鲁棒控制特性。 此外，用于永磁同步电动机的矢量控制系统可以在执行廉价电流检测的系统中普遍应用。
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公开(公告)号：US20070024219A1
公开(公告)日：2007-02-01
申请号：US11493820
申请日：2006-07-27
IPC分类号： H02P5/00
CPC分类号： H02J7/14 , B60L11/1851 , B60L2220/54 , H02J7/1407 , H02J7/1415 , H02M7/5395 , H02M2001/0009 , Y02T10/641 , Y02T10/7005 , Y02T10/705
摘要： A voltage detector is connected to a connection terminal connected to one phase of an AC output of an inverter through a diode. A removable charge power supply is connected to said connection terminal and another connection terminal. A charge-power-supply connection judging circuit judges whether the charge power supply is or isn't connected, based on a charge power supply voltage detected by a voltage detector. A mode change control circuit outputs switch signal by the result of said judgment. By receiving this switch signal, the inverter controller switches the operation of the inverter between the Motor Drive mode or the Battery Charge mode. Thereby, a motor drive device detects a connecting status of an external charge power supply and steadily switches the operation of the inverter between the Motor Drive mode or the Battery Charge mode.
摘要翻译： 电压检测器通过二极管连接到连接到逆变器的AC输出的一相的连接端子。 可拆卸充电电源连接到所述连接端子和另一个连接端子。 充电电源连接判断电路基于由电压检测器检测到的充电电源电压来判断充电电源是否被连接。 模式改变控制电路根据所述判断结果输出开关信号。 通过接收该开关信号，变频器控制器在电机驱动模式或电池充电模式之间切换变频器的运行。 因此，电动机驱动装置检测外部充电电源的连接状态，并且在电动机驱动模式或电池充电模式之间稳定地切换逆变器的动作。
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公开(公告)号：US08710781B2
公开(公告)日：2014-04-29
申请号：US13147807
申请日：2010-02-17
IPC分类号： H02P6/00
CPC分类号： H02M7/53871 , H02M1/12 , H02M1/15 , H02M7/5395 , H02M2001/0009
摘要： In a power conversion device that includes a PWM converting means for generating a PWM pulse by comparing three-phase voltage commands with a triangular wave carrier signal, a power converter for converting between a DC voltage and a three-phase AC voltage by driving a switching element according to the PWM pulse, a current detecting means for detecting a pulsed current flowing through a DC bus conductor of a main circuit, and a voltage command correcting means for correcting three-phase voltage commands, which corrects the three-phase voltage commands so that a line voltage value between the maximum phase and an intermediate phase and a line voltage value between the intermediate phase and the minimum phase are each equal to or larger than a predetermined value, the maximum phase, intermediate phase, and minimum phase being determined in correspondence to momentary values of the three-phase voltage commands arranged in descending order, if the voltage command is outside an allowable upper limit or lower limit, not only the voltage command for the maximum phase and/or the minimum phase but also the voltage command for the intermediate phase are corrected.Accordingly, the inability to detect a current due to a restriction imposed by an upper limit or a lower limit for an output voltage is eliminated, and highly precise control of the power conversion device is achieved independently of the situation.
摘要翻译： 一种电力转换装置，其特征在于，包括：PWM转换装置，用于通过将三相电压指令与三角波载波信号进行比较来产生PWM脉冲;功率转换器，用于通过驱动开关转换直流电压和三相交流电压 元件，用于检测流过主电路的直流母线导体的脉冲电流的电流检测装置，以及用于校正三相电压指令的三相电压指令的电压指令校正装置，其校正三相电压指令 最大相和中间相之间的线电压值和中间相和最小相之间的线电压值均等于或大于预定值，最大相位，中间相位和最小相位在 对应于以降序排列的三相电压命令的瞬时值，如果电压指令在允许的u之外 pper极限或下限，不仅对最大相位和/或最小相位的电压指令以及中间相位的电压指令进行校正。 因此，消除了由于对输出电压的上限或下限引起的限制而不能检测电流，并且独立于这种情况实现了电力转换装置的高精度控制。
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公开(公告)号：US20070241720A1
公开(公告)日：2007-10-18
申请号：US11698214
申请日：2007-01-26
IPC分类号： H02P27/04
CPC分类号： H02P27/08 , H02M7/5395 , H02M2001/0009
摘要： When finding a current on an AC side of an inverter by observing that on a DC side, a current that is not affected by pulsating components contained in the AC current must be detected. Timing of change of a gate signal for driving a switch element of a phase having an intermediate magnitude among three-phase voltage command signals to ON/OFF is used as a reference time point for DC bus current detection. DC bus currents sampled T1 before and T2 after the reference time point are designated as IDC1 and IDC2, respectively. A detected current value of a maximum voltage phase is computed by using IDC2 and IDC1 respectively in an increase period and a decrease period of a carrier signal alternately. A detected current value of a minimum voltage phase is computed by using IDC1 and IDC2 respectively in an increase period and a decrease period alternately.
摘要翻译： 通过观察在直流侧观察逆变器的交流侧的电流，必须检测不受交流电流中包含的脉动成分的影响的电流。 作为用于直流母线电流检测的基准时间点，使用用于将三相电压指令信号中具有中等幅度的相位的开关元件的开关元件的开关元件的变化的定时设定为ON / OFF。 在参考时间点之后，T 1之前和T 2采样的直流总线电流分别被指定为IDC 1和IDC 2。 在载波信号的增加周期和减少周期中分别使用IDC 2和IDC 1来计算最大电压相位的检测电流值。 通过在增加期间和减少周期中分别使用IDC 1和IDC 2来计算最小电压相位的检测电流值。
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