Abstract
ABSTRACT The steady state and transient analysis methods of converter-fed dc series motor reported so far do not take into account the nonlinearity of the magnetic circuit. Furthermore, for transient analysis discontinuous conduction has been neglected and only first order model has been reported though series motor is essentially a second order system. In the present paper steady-state and transient analysis methods have been presented for fully-controlled and half-controlled converter-fed dc series motor taking the nonlinearity and discontinuous conduction into account. The paper has been divided into two parts. Part I presents various approximations for the nonlinearity of the magnetic cir-circuit methods of calculating steady state performance and a method of calculating a suitable value of filter inductance. Theoretical deductions have been verified experimentally Part II of the paper presents the methods of transient analysis
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