8VAN DER BROECK H W, SKUDELNY H C, STANKE G. Analysis and realization of a pulse width modulator based on voltage space vectors [ J]. IEEE Trans on Industrial Applications, 1988, 24( 1 ) : 142 - 149.
10Zhong L, Rahman M, Hu W, et al. Analysis of direct torque control in permanent magnet synchronous motor drives [J]. IEEE Transactions on Power Electronics, 1997, 12 (3): 528-536.
