Performance Analysis of Different Control Strategies in a Z-source Inverter

B. Nayak, S. S. Dash

Abstract


This paper presents the analysis for different control techniques in Z-source inverters. The voltage gain versus modulation index from simulation result is compared with the mathematical calculated voltage gain. Further detailed analysis of %THD, %harmonics of output voltage at different modulation indexes for different boosting techniques of a Z-source inverter are also performed with respect to the traditional VSI by MATLAB based simulation


Keywords


Z-source inverter; shoot through; boost factor; voltage gain; voltage stress; total harmonic distortion (THD)

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References


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F. Z. Peng, M. Shen, Z. Qian, “Maximum boost control of the Z-source inverter”, IEEE Transactions on Power Electronics, Vol. 20, No. 4, pp. 833-838, 2005

P. C. Loh, D. M. Vilathgamuwa, Y. S. Lai, G. T. Chua, Y. Li, “Pulse-width modulation of Z-source inverters”, IEEE Transactions on Power Electronics, Vol. 20, No. 6, pp. 1346-1355, 2005




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