Turkish Journal of Electrical Engineering and Computer Sciences
Abstract
This paper presents a discontinuous space vector modulation technique for unbalanced two-phase three-leg inverters. This technique is based on the shift-angle and generalized modulation algorithm obtained for generating the unbalanced two-phase output voltage. Furthermore, the discontinuous switching sequence intends to improve the commutations of power switching devices in each inverter leg that achieves a minimum number of switching state changes in one sampling cycle. Therefore, the switch commutations can be reduced by one-third in one main period. The step-by-step procedure of the modulation algorithm for easy implementation in a digital control platform is discussed. The performance of the developed modulation technique is verified through both simulation and experimental results in a nonunity power factor balanced two-phase load and asymmetrical two-phase induction motor drive.
DOI
10.3906/elk-1806-214
Keywords
Two-phase system, three-leg inverter, DC/AC conversion, space vector modulation
First Page
1157
Last Page
1171
Recommended Citation
SRIRATTANAWICHAIKUL, W (2019). A generalized switching function-based discontinuous space vector modulation technique for unbalanced two-phase three-leg inverters. Turkish Journal of Electrical Engineering and Computer Sciences 27 (2): 1157-1171. https://doi.org/10.3906/elk-1806-214
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