Design of Z Source Inverter based VSWECS with Improved PWM Control
T. Muthukumari1, P. Selvaraj2, L. Pattathu rani3, Prajith Prabhakar4

1T. Muthukumari, Asso. Professor, Dept. of EEE, Jeppiaar Inst. of Tech., Kunnam, Perambalur, Tamilnadu, India
2Dr. P. Selvaraj, Professor, Dept. of EEE, Sri Venkateshwara Engg. College, Andrapradesh, India
3L. Pattathu rani, Asst.Professor, Dept. of EEE, Jeppiaar Inst.of Tech., Kunnam, Perambalur, Tamilnadu, India
4Dr. Prajith Prabhakar, Assistant Professor, Jeppiaar Inst. of Tech, India

Manuscript received on 04 July 2019 | Revised Manuscript received on 09 July 2019 | Manuscript published on 30 August 2019 | PP: 1402-1407 | Volume-8 Issue-10, August 2019 | Retrieval Number: J10030881019/19©BEIESP | DOI: 10.35940/ijitee.A1003.0881019
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Abstract: With rapid development in Wind Energy Conversion Systems (WECS), various methods have been used to increase power generation from wind. In order to reach voltage gain as maximum in a variable speed WECS, an improved PWM method through varying shoot through time for Impedance source inverter is implemented in this paper. For a given modulation index, the correlation of voltage gain with capacitor voltage, and the device stress are analyzed in detail. For ‘various shoot through time, the simulation results of voltage across capacitor, current through inductor, output current and output voltage are obtained by using Simpower system tool in MATLAB/ Simulink and compared. The results have been confirmed for the developed experimental model.
Keywords: Z source inverter, wind Energy conversion systems, voltage Boost, Pulse width Modulations.
Scope of the Article: Renewable Energy Technology