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Indian Journal of Engineering and Materials Sciences (IJEMS) >
IJEMS Vol.11 [2004] >
IJEMS Vol.11(3) [June 2004] >
| Title: | Determination of optimum switching angles for speed control of switched reluctance motor drive system |
| Authors: | Akhter, Hamid Ehsan
Sharma, Virendra K
Chandra, A
Haddad, Kamal Al |
| Issue Date: | Jun-2004 |
| Publisher: | CSIR |
| IPC Code: | Int. Cl.7 H 02P 5/05 |
| Abstract: | Turn-on angle and turn-off angle
are the two switching angles that play a major role in deciding whether a
switched reluctance motor (SRM) develops positive or negative, high or low
electromagnetic torque. Switching angles are function of speed and change with
acceleration, but this requires sophisticated and complex digital controllers
for real time variation of switching angles as a function of rotor speed. This
paper presents a methodology on the determination of fixed turn-on and turn-off
angles that are optimum and provide satisfactory performance of the SRM drive
during full-load operation. Experimental magnetization and static torque data
are used for realistic simulation of dynamic response of a 4 kW, 4-phase,
8-pole stator, and 6-pole rotor configuration SR motor. The simulated
performance of SRM drive system is presented to analyze the effect of different
switching angles on full-load (25 Nm) starting performance of the drive in
terms of speed, current and torque response. An optimum pair of turn-on and
turn-off angle that ensures stable and satisfactory full-load operation is
recommended. |
| Page(s): | 151-168 |
| ISSN: | 0975-1017 (Online); 0971-4588 (Print) |
| Source: | IJEMS Vol.11(3) [June 2004]
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