公开(公告)号：US20150333636A1

公开(公告)日：2015-11-19

申请号：US14710881

申请日：2015-05-13

Applicant: DENSO CORPORATION

Inventor： Syuji KURAUCHI ,  Tsuyoshi HOSODA ,  Keisuke YAGYU

IPC: H02M3/335

CPC classification number: H02M3/285 ,  H02J1/102 ,  H02J7/0065 ,  H02M3/33507

Abstract: An electric power converter is equipped with a master converter and a slave converter that are connected in parallel with each other, and to a load. The master converter operates having priority over the slave converter. The slave converter includes a voltage sensor for detecting an output voltage of the electric power converter and a control unit for controlling an output of the slave converter based on a target command value. The control unit selects a current command value Ic2 received from the master converter as a target command value when a variation ΔV per predetermined time of a detected output voltage Vo2 is lower than a variation ΔVth1. The control unit selects a voltage command value Vc2a calculated so as to suppress the output voltage Vo2 from changing as the target command value when the variation ΔV exceeds the variation ΔVth1.

Abstract translation: 电力转换器配备有彼此并联连接的负载和主转换器。 主转换器优先于从属转换器工作。 从属转换器包括用于检测电力转换器的输出电压的电压传感器和用于基于目标指令值控制从属转换器的输出的控制单元。 Vth1，当检测到的输出电压Vo2的每个预定时间的变化量＆Dgr; V变得低于变化量Dgr; Vth1时，控制单元选择从主变换器接收的电流指令值Ic2作为目标指令值。 在变化＆Dgr; V超过变化＆Dgr; Vth1时，控制单元选择计算出的电压指令值Vc2a，以便抑制输出电压Vo2作为目标指令值而改变。