公开(公告)号：US20140210397A1

公开(公告)日：2014-07-31

申请号：US13895360

申请日：2013-05-16

Applicant: KABUSHIKI KAISHA YASKAWA DENKI

Inventor： Masashi TAKENOUCHI ,  Tomohiro KAWACHI ,  Kenji TOMOHARA ,  Koji HIGASHIKAWA

IPC: H02P6/00

CPC classification number: H02P25/18 ,  H02P6/08

Abstract: Provided is an inverter apparatus 20 configured to switch a current winding to an optimal winding when a rotation speed of a rotor of an AC electric motor 40 is within a hysteresis region defined by first and second switch timings for switching a state of an armature winding between a first winding and a second winding and when the current winding differs from the optimal winding.

Abstract translation: 提供了一种逆变器装置20，其被配置为当AC电动机40的转子的转速在由第一和第二开关定时限定的滞后区域内时将电流绕组切换到最佳绕组，用于切换电枢绕组的状态 第一绕组和第二绕组，并且当电流绕组与最佳绕组不同时。

公开(公告)号：US20140197771A1

公开(公告)日：2014-07-17

申请号：US13895361

申请日：2013-05-16

Applicant: KABUSHIKI KAISHA YASKAWA DENKI

Inventor： Zhenning CHEN ,  Tomohiro KAWACHI ,  Kenji TOMOHARA ,  Koji HIGASHIKAWA ,  Masashi TAKENOUCHI

IPC: H02P25/18

CPC classification number: H02P25/18 ,  H02P21/0089 ,  Y02P80/116

Abstract: A winding switching signal generator is configured to obtain information indicating a degree of field weakening from at least one of a current command calculator and a constant output controller, and to generate a winding switching signal for switching from a low speed rotation state to a high speed rotation state when the degree of the field weakening exceeds a predetermined condition in the low speed rotation state.

Abstract translation: 绕组切换信号发生器被配置为从电流指令计算器和恒定输出控制器中的至少一个获得指示弱化程度的信息，并且产生用于从低速旋转状态切换到高速的绕组切换信号 当弱磁程度在低速旋转状态下超过预定条件时的旋转状态。