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1. 发明申请

WO2007143570A2 METHOD, SYSTEM, AMD APPARATUS FOR CONTROLLING AN ELECTRIC MOTOR 审中-公开
标题翻译：方法，系统，用于控制电动机的AMD装置
公开(公告)号：WO2007143570A2
公开(公告)日：2007-12-13
申请号：PCT/US2007/070250
申请日：2007-06-01
申请人： POWER EFFICIENCY CORPORATION , BOYADJIEFF, George, I. , HURST, John, J.
发明人： BOYADJIEFF, George, I. , HURST, John, J.
IPC分类号： H02K23/00
CPC分类号： H02M7/1555 , H02J3/1892 , H02M1/082 , H02M1/4208 , H02P23/26 , H02P31/00 , Y02B70/126
摘要： The present invention provides systems and methods for power factor control of a motor. A phase detector uses a line voltage of a power supply and a motor terminal voltage of a motor. The output of the phase detector is synchronized to a zero crossing of the motor current of the motor and a zero crossing of the line voltage. A digital microprocessor connected between the output of the phase detector and a rectifier driver senses a first time at which a phase of the motor voltage is crossing zero volts and a second time at which a phase of the motor current is crossing zero current. The digital microprocessor calculates the difference in time between the first and second times and uses the difference in time to calculate a phase lag of the motor. The digital microprocessor uses the phase lag to calculate a firing time of a rectifier to command power efficiently to the motor.
摘要翻译：本发明提供了一种用于电机的功率因数控制的系统和方法。相位检测器使用电源的线路电压和电动机的电动机端子电压。相位检测器的输出与电动机的电动机电流的过零点和线路电压的过零点同步。连接在相位检测器的输出端和整流器驱动器之间的数字微处理器检测电动机电压的相位与零电压相交的第一次，以及电动机电流的相位与零电流相交的第二时间。数字微处理器计算第一次和第二次之间的时间差，并使用时间差来计算电动机的相位滞后。数字微处理器使用相位滞后来计算整流器的点火时间以有效地向电动机指示功率。

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