Download - Krest Technology

A FLUX-WEAKENING CONTROL APPROACH FOR
INTERIOR PERMANENT MAGNET SYNCHRONOUS MOTORS
BASED ON Z-SOURCE INVERTERS
ABSTRACT
This paper presents a flux-weakening solution by employing the voltage boost capability
of Z-source inverters to overcome the voltage limitation in conventional drives for highspeed
applications, e.g. hybrid/electric vehicles. In this control strategy, a flux-weakening algorithm
has been developed to achieve constant output power of an interior permanent magnet
synchronous motor (IPMSM). Correspondingly, a flux-weakening control strategy including a
closed-loop speed control is presented. Compared to existing flux-weakening methods, this
attractive control strategy allows an IPMSM to largely extend its constant power speed range and
operate at higher speed with larger torque. Theoretical analysis is given in detail, and
corresponding simulation results are presented to verify the presented control technique.
BLOCK DIAGRAM FOR PROPOSED SYSTEM
Fig. 1 Typical topology of a Z-source inverter.
Head office: 2nd floor, Solitaire plaza, beside Image Hospital, Ameerpet, Hyderabad
www.kresttechnology.com, E-Mail : [email protected] , Ph: 9885112363 / 040 44433434
1
DESIGNG SOFTWARE AND TOOLS:
MAT LAB /SIMULATION Software and sim power systems tools are used. Mainly control
system tools, power electronics and electrical elements tools are used.
Head office: 2nd floor, Solitaire plaza, beside Image Hospital, Ameerpet, Hyderabad
www.kresttechnology.com, E-Mail : [email protected] , Ph: 9885112363 / 040 44433434
2