Discussion
The converter for a switched reluctance machine can be simpler than an inverter because
Answer: A
Correct answer: the phase current need flow in one direction only
Torque depends on the square of the current rather than its sign, so unidirectional current suffices and each phase needs only an asymmetric half bridge rather than a full one. The converter is therefore simpler and more fault-tolerant than an inverter, since a shoot-through path between the rails does not exist.
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