Page 176 - Electric Drives and Electromechanical Systems
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170   Electric Drives and Electromechanical Systems
































































             FIG. 6.4 The waveforms for an idealised BDCM. The airgap flux linkage and e.m.f for coil A2 are displaced by
             30 degrees (d) from that of A1. The e.m.f per phase is shown in the lower graph, the actual waveform is
             trapezoidal in shape due to magnetic fringing and motor construction. Adapted from Miller (1989).
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