期刊名称：International Journal of Innovative Research in Science, Engineering and Technology
印刷版ISSN：2347-6710
电子版ISSN：2319-8753
出版年度：2015
卷号：4
期号：1
页码：18834
DOI：10.15680/IJIRSET.2015.0401030
出版社：S&S Publications
摘要：Steady state stability criteria of A.C. drives play a dominant role for making the drive system practicallysuccessful. Generally such steady state stability analysis (SSSA) is done using small perturbation model. This studypresents a detailed steady state stability analysis (SSSA) criterion based on small perturbation model of a fuzzy basedcurrent source inverter fed synchronous motor (CSIFSM) drive system taking d-axis and q-axis damper winding intoaccount using fuzzy set theory. The modeling also clearly shows that even at no load the system satisfies steady statestability analysis (SSSA) criterion. The current source inverter fed synchronous motor (CSIFSM) has been treated as afive coil primitive machine model using the concept of generalized theory of electrical machines. Using the concept ofPark‟s transformation the armature current in d-q model has been represented by suitable equations as a function ofarmature current magnitude in phase model (IS) and the field angle (β). As the system under consideration is basically acurrent source inverter fed system, IS has been considered as a constant and as a consequence the field angle (β) finallyappears as a control variable. Finally the transfer function Δβ (s)/ΔTL(s) have been formulated; where Δβ (s) and ΔTL(s) represent small change in transformed field angle and load torque, respectively. A fuzzy logic system is developedfor steady state stability study of CSI fed Synchronous Motor (CSIFSM) and discussed for its better performance. Theanalysis concludes that the absence of damper winding leads to instability of the machine system.
关键词：Steady State Stability Analysis (SSSA); current source inverter fed synchronous motor (CSIFSM)
