Lead compensator-based voltage control of quasi Z-source inverter for grid integration of photovoltaic system

被引：0
|
作者：
Miyani, Piyush B. [1 ]
Sant, Amit V. [1 ]
机构：
[1] Department of Electrical Engineering, School of Technology, Pandit Deendayal Energy University, Gandhinagar, India
来源：
International Journal of Ambient Energy | 2023年 / 44卷 / 01期
关键词：
This paper proposes lead compensator-based voltage control of a 3-phase quasi Z-source inverter (q-ZSI) integrating a solar PV system with the grid. Shoot-through control is incorporated in voltage-oriented control for regulating the dc-link voltage of q-ZSI. The lead compensator; which provides robust performance by shifting the pole pair to the right hand of the s-plane to ensure system stability; helps to determine the shoot-through duty ratio. The lead compensator is designed based on the bode diagram for the transfer function of the capacitor voltage to shoot-through duty ratio with unity feedback gain. Additionally; using a lead compensator also results in simpler tuning requirements. The performance of 3-phase q-ZSI-based grid-tied PV with lead compensator-based dc-link voltage control is analysed under different operating conditions. The analysis reveals IEEE-1547 compliant operation with only active power being injected into the grid and dc-link voltage regulation. © 2023 Informa UK Limited; trading as Taylor & Francis Group;
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页码：46 / 56
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