Apparatus for operating an interior permanent magnet synchronous motor

一种永磁同步电机、内置式的技术，应用在控制机电传动装置、控制发电机、电动发电机控制等方向，能够解决减小输出转矩、IPMSM驱动系统性能劣化、逆变器电压利用率降低等问题，达到增加电压利用率的效果

Active Publication Date: 2013-01-09
LSIS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0060] However, there is a problem that the subject parameter of the IPMSM changes due to the use of the pre-measured (offline) look-up table by the current command generator 104, so figure 1 Performance degradation of the IPMSM drive system in
[0061] In addition, another existing problem is that even if the main parameters of the IPMSM are not changed, since the look-up table determines the performance of the entire driving area, the driving performance of the motor is determined by the performance of the look-up table
[0062] Another existing problem is that because the amount of voltage synthesized by the inverter is limited by the inscribed circle of the voltage limit hexagon, the voltage utilization of the inverter is reduced to reduce the output torque

Method used

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  • Apparatus for operating an interior permanent magnet synchronous motor
  • Apparatus for operating an interior permanent magnet synchronous motor
  • Apparatus for operating an interior permanent magnet synchronous motor

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Embodiment Construction

[0092] by referring to the attached Figure 1 to Figure 7 , so that the disclosed embodiments and advantages thereof are best understood, like reference numerals are used for like and corresponding parts in the various drawings. Other features and advantages of the disclosed embodiments will be, or will become, apparent to one of ordinary skill in the art upon examination of the following drawings and detailed description. It is intended that all such additional features and advantages be included within the scope of the disclosed embodiments and protected by the accompanying drawings. Furthermore, the illustrated figures are exemplary only and are not intended to assert or imply any limitation as to the environments, structures, or processes in which different embodiments may be implemented. Accordingly, the described aspects are intended to embrace all such alternatives, modifications and changes that fall within the spirit and novel concepts of the invention.

[0093] At ...

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Abstract

Provided is an apparatus for operating an interior permanent magnet synchronous motor in a system including a detector measuring a position and a speed of a rotor of an IPMSM, the apparatus including an output unit generating and outputting a current command driving a MTPA (Maximum Torque Per Ampere) based on the command torque, a correction unit correcting the current command outputted by the output unit, a feedback unit transmitting over-modulated voltage information to the correction unit, a control unit controlling the current command to output a voltage, a first limit unit limiting an output of the control unit using a maximum voltage synthesizable by an inverter unit, and the inverter unit applying a 3-phase voltage command for tracking a command torque to the IPMSM using an output of the first limit unit.

Description

technical field [0001] The present disclosure relates to a motor driving device, in particular to a driving device for operating an interior permanent magnet synchronous motor (IPMSM) at a speed higher than a rated speed. Background technique [0002] The information disclosed in this Background of the Invention section is only for enhancement of understanding of the background of the invention and should not be taken as an acknowledgment or any form of suggestion that the information forms the basis for those skilled in the art. known prior art. [0003] A permanent magnet synchronous motor (PMSM) driven by a voltage inverter operates in speed-controlled or torque-controlled mode. The speed control mode is used to drive hoisting loads such as lifts or cranes, or to drive variable speed loads such as fans or pumps, and the torque control mode acts as a traction motor for driving electric vehicles. [0004] In general, the output of the speed controller is provided as a tor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P21/00H02P21/14H02P27/04
CPCH02P21/0035H02P25/021H02P21/06H02P21/22H02P25/024H02P21/14
Inventor 俞安橹
Owner LSIS CO LTD
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