alexa Comparative Analysis of 3-, 5- and 7-Level Inverter Us
ISSN ONLINE(2278-8875) PRINT (2320-3765)

International Journal of Advanced Research in Electrical, Electronics and Instrumentation Engineering
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Research Article

Comparative Analysis of 3-, 5- and 7-Level Inverter Using Space Vector PWM

G. Laxminarayana1,K.pradeep2
  1. Assistant Professor, Dept.of EEE, Aurora’s Engineering College, Bhongir, India1
  2. M.Tech Scholor, Dept.of EEE, Aurora’s Engineering College, Bhongir, India2.
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The above concept brings out the method for the multilevel inverters for generation of space vector pulse width modulation (SVPWM) signals. The small triangles formed by the adjacent voltage space vectors are called sectors. Such six sectors around a voltage space vector forms a hexagon called sub hexagon. The space vector diagram of a multilevel inverter can be viewed as composed of a number of such sub hexagons. In the proposed method, we are finding the switching sequence to two level inverter and this can be extended to any number of levels of technique (Reverse Mapping) is proposed in this paper, by which these two-level vectors are translated to the switching vectors of the multilevel inverter by adding the center of the sub hexagon to the two-level vectors.. The scheme is explained for a five-level diode clamped inverter, and experimental results are presented for a three-level 5- level and 7-level diode clamped inverter.


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