Digital Control of Permanent MagnetSynchronous Motor

International Journal of Advanced Research in Electrical, Electronics and Instrumentation Engineering

article

Jayasri R. Nair¹ 

[1] Dept. of EEE, Rajagiri School Of Engineering and Technology

关键词: Field Oriented Control (FOC);    Direct Torque Contro (DTC);    Permanent Magnet Synchronous Motor (PMSM);    Digital Signal Processors (DSP);    Space Vector Pulse Width Modulation (SVPWM);    Code Composer Studio (CCS);    Quadrature Encoder Pulse (QEP);   

DOI  :  10.15662/ijareeie.2014.0308029

来源: Research & Reviews

【 摘 要 】

The principle of vector control of electrical drives is based on the control of both the magnitude and the phase of each phase current and voltage. For as long as this type of control considers the three phase system as three independent systems, the control will remain analog and thus present several drawbacks. With high computational power silicon devices, it has been possible to realize precise digital vector control algorithms. The most common is the Field Orientated Control, which demonstrates the capability of performing direct torque control of handling system limitations and of achieving higher power conversion efficiency. The new families of DSPs enable cost-effective design of intelligent controllers for brushless motors which can fulfill enhanced operations, consisting of fewer system components, lower system cost and increased performances. This algorithm maintains efficiency over a wide range of speeds for a 24V, 4000 rpm Permanent Magnet Synchronous Motor and takes into consideration torque changes with transient phases by controlling the flux directly from the rotor coordinates.

【 授权许可】

Unknown