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Digital Implementation of Z-source Neutral Point Clamped Inverter Using 8-bit Microcontroller

Lara Amild*, Christal Saji**

* PG Scholar, Department of Electrical and Electronics Engineering, Bethlehem Institute of Engineering, India.

** Assistant Professor, Department of Electrical and Electronics Engineering, Bethlehem Institute of Engineering, India.

Periodicity:December - February'2014
DOI : https://doi.org/10.26634/jcom.1.4.2716

Abstract

The Z-source inverter is a relatively recent converter topology that exhibits both voltage-buck and voltage-boost capability. The Z-source concept can be applied to all dc-to-ac, ac-to-ac, ac-to-dc, and dc-to-dc power conversion whether two level or multilevel. Multilevel converters offer many benefits for high power applications. Z-source concept was extended to neutral point clamped inverter. The contribution of this paper is the digital implementation of SVM technique using 8-bit microcontroller for Z-source NPC. The proposed system uses 8-bit PIC 16F877A microcontroller to generate SVPWM (Space Vector Pulse Width Modulation) signal needed to trigger the gates of IGBT bridge of the multilevel inverter. This method has the benefits in terms of implementation and harmonic performance. By this method, the operation of Z-source arrangement can be optimized and implemented digitally without introducing any extra commutations.

Keywords

Space Vector Modulation (SVM), Multilevel Inverter, Neutral Point Clamped Inverter (NPCI), Z-Source, Micro controller. Space Vector Pulse Width Modulation (SVPWM), Insulated Gate Bripolar Transistor (IGBT)

How to Cite this Article?

Amilda, L.A.L., and Saji, K.C. (2014). Digital Implementation of Z-Source Neutral Point Clamped Inverter using 8-Bit Microcontroller. i-manager’s Journal on Computer Science, 1(4), 26-31. https://doi.org/10.26634/jcom.1.4.2716

References

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