Investigation on PV System based Z Source Inverters
نویسندگان
چکیده
Abstract This paper presents a comparison between PV system using Z source inverters and Quazi Z source inverters. The Z-source inverter employs a unique LC network to couple the inverter power circuit to the diode front end and can be shoot through to boost the DC link voltage. By controlling the shoot-through duty cycle, the PV array output voltage is controlled and the maximum power point tracking (MPPT) is realized. The quasi-Z-source inverter (QZSI) is similar to the ZSI. It has got several advantages such as lower component ratings, reduced source stress, reduced component count, and simplified control strategies.
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