Arm-7 based single phase Z-source inverter for motor drive - Tapa blanda

Sinopsis

Z source inverter is used to overcome the problems in the traditional source inverters. It employs a unique impedance network coupled with the inverter main circuit to the power source. It consists of voltage source from the rectifier supply, impedance network, single phase inverter and single phase induction motor. The ac voltage is rectified to dc voltage by the rectifier. The rectifier output dc voltage fed to the impedance network, which consist of two equal inductors and two equal capacitors. The network inductors are connected in series arms and capacitors are connected in diagonal arms. The impedance network is used to buck or boost the input voltage depend boosting factor. This network also act as a second order filter and it should required less inductance and less capacitance. The inverter main circuit consists of four switches. These inverters use a unique impedance network, coupled between the power source and converter circuit, to provide both voltage buck and boost properties, which cannot be achieved with conventional voltage source and current source inverters.

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