Page 25 - IJOCTA-15-4

Control strategies and power converter topologies for switched reluctance motors in electric...
No. of No. of diodes
Type of switches and
Advantages Disadvantages
Topology per capacitors
phase per phase
• Reduced switching losses
and conduction losses
enhance overall system
efficiency
• Reduced torque ripple
• Compact design requires
fewer components,
resulting in a
lightweight design • Switching
• Supports better utilization complexity
of the DC bus voltage, • High-speed switching
enhancing motor speed may generate significant
and performance electromagnetic interference,
• Cost-effective requiring additional
T-type (Figure 25D) 3 2, 1
• Effectively supports filtering
energy recovery during • Concentration
braking of power
• Lower power losses handling in specific
result in reduced components may lead to
heat generation, localized heating issues
simplifying cooling
requirements.
• Reliable operation
• Suitable for various
power levels, making it
adaptable for
different EV
applications
Abbreviations: AHB: Asymmetric half bridge; DC: Direct current; EV: Electric vehicle;
NIPC: Novel integrated power converter; SRM: Switched reluctance motor.

Figure 21. Types of single power converters. (A) Split direct current source. (B) Star connected. Adapted
from Deepak et al. 79

Based on an extensive literature review (Ta- converter. 88 Each of these configurations demon-
ble 3), three converter topologies have emerged strates a unique combination of efficiency, con-
as the most suitable for SRM applications: trol flexibility, reliability, power productivity, and
the asymmetric half-bridge (AHB), 89 novel in- cost-effectiveness, making them highly compat-
tegrated power converter (NIPC), 87 and T-type ible with the performance demands of modern

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