Author : Suresh Veer 1
Date of Publication :28th March 2018
Abstract: This paper presents the impedance source inverter for adjustable speed drive (ASD). Utilization of ZSI in industrial applications greatly increases the reliability by allowing only lower inrush current, lower harmonic injection and high immunity to EMI noises. This limitation can be overcome by Z Source Inverter, With the use of impedance source network.The impedance network connected between rectifier and inverter circuit, act as storage during input voltage, higher than required voltage and provide string voltage during input voltage is less than required voltage. by controlling shoot through duty cycle impedance source can be produce required ac voltage even greater than line voltage. As a result this impedance source system, provides, capability during voltage sag and swell, reduce harmonic, improve power factor and reliability, and extend the output voltage, analysis simulation and experimental result can be analysed.
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