Institute of Electrical and Electronics Engineers (IEEE)

Nearest Space-Vector Control Strategy for High-Resolution Multilevel Inverters

R Sreedhar ¹

K. Karunanithi ¹

P Chandrasekar ¹

R. Bhavani Teja ¹

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Vel Tech Rangarajan Dr.Sagunthala R&D, Institute of Science and Technology,Department of EEE,Avadi Chennai,India,600 062 |

Publication type: Proceedings Article

Publication date: 2021-04-02

Institute of Electrical and Electronics Engineers (IEEE)

DOI: 10.1109/I2CT51068.2021.9417882

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Abstract

Space-vector methods for two/three level inverters involve computation of dwell times for synthesizing the reference space vector which is practically impossible for high resolution inverters. Moreover, density of space vectors in the space vector diagrams for high resolution inverters is very high and that computation of dwell times may not be necessary. So, nearest space vector approach is used for controlling high resolution inverters. This paper presents a different approach to find the nearest space-vector algorithm for high-resolution multilevel inverters. The method finds coordinates of all the space vectors in the vicinity of a given reference space vector and determines the nearest one and thus controls the inverter. Working of the control strategy is verified by simulations in MATLAB/Simulink.

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