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3. OWEN, E.L., and WEISS, H. W., ‘Efficient and reliable synchronous motors for large a.c. adjustable-speed drives’, Proceedings American Power Conference, (1981)
4. ‘Utilization and rating of machine commutated inverter-synchronous motor drives’;ROSA;IEEE Transactions on Industry Applications,1979
5. Control of electrical drives;LEONHARD,1985