ABSTRACT
The permanent-magnet-assisted reluctance synchronous machine (PM-RSM), also called the interior permanent magnet (IPM) synchronous machine, with high magnetic saliency was proven to be competitive, price-wise (Figure 8.1) [1], and superior in terms of total losses (Figure 8.2) [2] for starter/alternator automobile applications where a large constant power speed range
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3 to 4 is required. The cost comparisons show the PM-RSM starter alternator system, including power electronics control,
to be notably less expensive than the surface PM synchronous machine or switched reluctance machine system at the same output. It is comparable with the cost of the induction machine system. In terms of
total machine plus power electronics losses, the PM-RSM is slightly superior even to the surface PM synchronous machine (Figure 8.2), and notably superior to the induction machine system, all designed for the same machine volume, at 30 kW [2].
