公开(公告)号：US20160308475A1

公开(公告)日：2016-10-20

申请号：US15097753

申请日：2016-04-13

Applicant: DENSO CORPORATION

Inventor： Akiyoshi MORII ,  Tetsuya NOMURA

IPC: H02P6/04 ,  H02P6/08

CPC classification number: H02P21/02 ,  H02P27/085

Abstract: A control apparatus calculates a total loss change amount that is a power loss change amount of a motor control system including respective power loss change amounts of a converter, an inverter, and a motor of the motor control system. Based on the total loss change amount, during a correction-allowed period that is a period during which square wave control is performed, the control apparatus performs correction to decrease a current output voltage command value of the converter when the current output voltage command value is determined to be greater than the output voltage of the converter at which actual total power loss change amount becomes minimum. When the current output voltage command value is determined to be less than the output voltage of the converter at which actual total power loss change amount becomes minimum, the control apparatus performs correction to increase the current output voltage command value.

Abstract translation: 控制装置计算包括电动机控制系统的转换器，逆变器和电动机的各自的功率损耗变化量的电动机控制系统的功率损失变化量的总损耗变化量。 基于总损耗变化量，在进行方波控制的期间的修正允许期间，当电流输出电压指令值为“0”时，控制装置进行校正，以减小转换器的当前输出电压指令值 被确定为大于实际总功率损耗变化量变为最小的转换器的输出电压。 当电流输出电压指令值被确定为小于实际总功率损耗变化量变为最小值的转换器的输出电压时，控制装置执行校正以增大电流输出电压指令值。

公开(公告)号：US20160336885A1

公开(公告)日：2016-11-17

申请号：US15084014

申请日：2016-03-29

Applicant: DENSO CORPORATION

Inventor： Tetsuya NOMURA ,  Takeshi ITOH

IPC: H02P6/28 ,  H02P6/08

CPC classification number: H02P6/08 ,  H02M7/5395 ,  H02M2001/007 ,  H02P27/08

Abstract: A control system for controlling an electric rotating machine includes an inverter for driving the electric rotating machine, a converter that converts an input voltage thereof to an output voltage equal to a step-up command value, and supplies the output voltage to the inverter, a pulse generation section that generates PWM pulses from a carrier for controlling the inverter in accordance with result of comparison between the carrier and a voltage command to the electric rotating machine, and a command generation section that generates the step-up command value. The command generation section includes a command control section that controls the step-up command value such that a modulation factor defined as an amplitude of the voltage command divided by the output voltage of the converter is changed within a predetermined modulation factor range.

Abstract translation: 用于控制旋转电机的控制系统包括用于驱动旋转电机的逆变器，将其输入电压转换为等于升压指令值的输出电压并将输出电压提供给逆变器的转换器， 脉冲发生部，其根据载波与对旋转电机的电压指令的比较结果，从用于控制逆变器的载波产生PWM脉冲;以及命令生成部，其生成升压指令值。 命令生成部分包括命令控制部分，其控制升压命令值，使得被定义为电压指令的幅度除以转换器的输出电压的调制度在预定的调制系数范围内改变。