ADVANCE CONTROL TECHNIQUE FOR CONTROLLING THE GAIN AND MINIMIZING LOW FREQUENCY RIPPLES OF SWITCHED INDUCTOR Z-SOURCE INVERTER | [Pakistan Journal of Science • 2019]

Author(s):

1. M.M. Akram: Department of Electrical Engineering, NFC-Institute of Engineering and Technology,Multan,Pakistan

2. S. Zahra: Department of Electrical Engineering, NFC-Institute of Engineering and Technology,Multan,Pakistan

3. M. Siddique: Department of Electrical Engineering, NFC-Institute of Engineering and Technology,Multan,Pakistan

4. D. Iqbal: Department of Electrical Engineering, NFC-Institute of Engineering and Technology,Multan,Pakistan

5. M.A. Sharif: Department of Electrical Engineering, NFC-Institute of Engineering and Technology,Multan,Pakistan

6. G. Hussain: Department of Electrical Engineering, NFC-Institute of Engineering and Technology,Multan,Pakistan

Abstract:

In this paper simple boost, max boost control, and max constant boost control are three approaches proposed for switched inductor Z-source inverter topology. If we consider practical design of maximum boost control technique, we can say that gain can be altered for given modulation index and it can also reduce the voltage stress. Max constant boost control is introduced to overcome low frequency ripples which are linked with capacitor voltage and inductor current. These techniques show the relationship between voltage gain versus modulation index, voltage stress versus voltage gain and stress ratio versus voltage gain. These switching strategies are analyzed in detail and also proved by simulations.

Page(s): 36-41

DOI: DOI not available

Published: Journal: Pakistan Journal of Science, Volume: 71, Issue: 4S, Year: 2019

Keywords:

SLZSI , voltage gain , Voltage stresses , low frequency ripples

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