Title :
Comparison of two current modulation strategies for matrix converters under unbalanced input voltage conditions
Author :
Blaabjerg, Frede ; Casadei, D. ; Matteini, M. ; Klumpner, C.
Author_Institution :
Inst. of Energy Technol., Aalborg Univ., Denmark
Abstract :
In this paper, the input current performance of matrix converters is analyzed, especially with reference to the operating conditions determined by unbalanced supply voltages. The space vector modulation technique is utilized to calculate the duty-cycles of the active voltage vectors that must be applied, in each switching cycle period, in order to satisfy the input and output requirements. A detailed theoretical analysis of the input current harmonic content under unbalanced input voltage conditions is presented for two different current modulation strategies. On the basis of numerical simulations as well as measurements on a laboratory prototype set-up, the strategies are compared and the validity of the theoretical investigation confirmed
Keywords :
AC-AC power convertors; PWM power convertors; harmonic distortion; numerical analysis; power conversion harmonics; switching circuits; vectors; AC/AC power conversion; PWM; active voltage vectors; current modulation strategies; current modulation strategies comparison; duty-cycles; input current harmonic content; matrix converters; numerical simulations; operating conditions; space vector modulation; switching cycle period; unbalanced input voltage conditions; unbalanced supply voltages; Equations; Harmonic analysis; Laboratories; Matrix converters; Numerical simulation; Performance analysis; Power conversion; Support vector machines; Topology; Voltage control;
Conference_Titel :
Industrial Electronics, 2000. ISIE 2000. Proceedings of the 2000 IEEE International Symposium on
Conference_Location :
Cholula, Puebla
Print_ISBN :
0-7803-6606-9
DOI :
10.1109/ISIE.2000.930342
