| |
Dynamic-Performance Comparison of IRFO and SFO–SM Controlled Drives in Field-Weakening Region using Variable-Saturation Regulators
| [View]
[Download]
|
| Author(s) |
CASCELLA Giuseppe Leonardo; CUPERTINO Francesco; SALVATORE Nadia |
| Abstract |
This paper proposes to use variable-saturation regulators for induction motor drives operating in field-weakening region, and presents a comparative dynamic-performance analysis between the traditional Indirect Rotor Field Oriented (IRFO) control scheme and a new Stator Flux Oriented – Sliding Mode (SFO-SM) control scheme. The traditional IRFO control scheme has the d-axis current component, torque, rotor flux, and speed loops with four PI-type controllers. The SFO-SM control system is a Direct Torque Control – Space Vector Modulation (DTC-SVM) scheme with closed loops of torque and stator flux without current PI-type controllers. Both control schemes use regulators with variable-saturation in such a way that maximum dc-bus voltage utilization is reached and overcurrent problems are prevented. The experiments are carried out using dSpace digital controllers and comparative results show that the SFO-SM controlled Induction Motor (IM) drive and IRFO one are characterized by similar dynamic responses in spite of structural simplicity of the SFO-SM control scheme. |
| Download |
| Filename: | 0849 |
| Filesize: | 366.9 KB |
|
| Type |
Members Only |
| Date |
Last modified 2006-02-05 by System |
| |
 |