Novel Switching Table for Direct Torque Controlled Permanent Magnet Synchronous Motors to Reduce Torque Ripple

Torque Ripple of Permanent Magnet Synchronous Torque Motor

Abstrakt Hlavními požadavky kladenými na pohybové osy NC obráběcích strojů jsou vysoká přesnost polohování a vysoká dynamika pohybů. Základní předpoklad pro dosažení těchto protichůdných předpokladů jsou tuhá a lehká konstrukce mechanické struktury stroje. Těmito parametry je dána výše první antirezonanční frekvence, která omezuje nastavení zesílení kaskádně uspořádaných regulátorů rychlosti a ...

Direct Torque Control of Permanent Magnet Synchronous Motors

Performance Improvement of Direct Torque Controlled Interior Permanent Magnet Synchronous Motor Drives Using Artificial Intelligence

The main theme of this paper is to present novel controller, which is a genetic based fuzzy Logic controller, for interior permanent magnet synchronous motor drives with direct torque control. A radial basis function network has been used for online tuning of the genetic based fuzzy logic controller. Initially different operating conditions are obtained based on motor dynamics incorporating...

A Simple Method to Reduce Torque Ripple in Direct Torque Controlled Permanent Magnet Synchronous Motor by Using Voltage Vectors with Variable Amplitude and Position

In this paper, a modified direct torque control (DTC) for permanent magnet synchronous machine is proposed, which enables important torque and flux ripple reduction by using voltage vectors with variable amplitude and angle. Conventional DTC presents some drawbacks, including large torque ripple, variable switching frequency and acoustic noise. The reason lies in that t h e switching table is c...

Novel Torque Control Technique for High Efficiency/High Power Interior Permanent Magnet Synchronous Motors

HV The motors of hybrid electric vehicles must be able to offer high efficiency, a high power/weight ratio, and excellent reliability across the entire rotor speed range. Interior permanent magnet synchronous (IPM) motors are used to satisfy these requirements. The goal of this study was to develop an IPM motor control method that would increase the torque and the efficiency at high and medium ...