Analysis and control of photovoltaic‐assisted three‐phase induction machine operating as single‐phase micro‐wind generator. Issue 9 (1st June 2016)

• Record Type: Journal Article
• Authors: Chatterjee, Arunava; Chatterjee, Debashis
• Is Part Of: IET generation, transmission & distribution. Volume 10:Issue 9(2016)
• Page Start: 2165
• Page End: 2176
• Publication Date: 2016-06-01
• Subjects: asynchronous machines -- wind power plants -- photovoltaic power systems -- power generation control -- power grids -- stators -- rotors -- invertors -- power generation reliability -- machine vector control -- voltage control -- frequency control -- angular velocity control -- load regulation; photovoltaic‐assisted three‐phase induction machine -- single‐phase microwind generator -- improved control methodology -- off‐grid three‐phase induction machine -- three‐phase winding -- PV‐assisted single‐phase inverter -- photovoltaic‐assisted single‐phase inverter -- variable excitation requirement -- rotor -- power capacitor -- reliability -- stator‐flux‐oriented control -- terminal voltage regulation -- power 1 kW -- voltage 415 V; Electric power production -- Periodicals; Electric power transmission -- Periodicals; Electric power distribution -- Periodicals; 621.3105
• DOI: 10.1049/iet-gtd.2015.1207
• Languages: English
• ISSNs: 1751-8687

Abstract

Abstract : An improved control methodology for off‐grid, three‐phase induction machine working as a single‐phase generator is presented in this study. A three‐phase machine made to work as a single‐phase generator has advantages of lower size and cost than their single‐phase equivalent in almost all ratings except in the lower fractional kilowatt (kW) ranges. The three‐phase windings are configured as isolated two equivalent phases in the proposed system for this purpose. The machine uses photovoltaic (PV)‐assisted single‐phase inverter to one of its two phases for variable excitation requirement to cater dynamic loads at different rotor speeds besides having a fixed capacitor to provide bulk excitation. A storage battery is used along with the PV panels to improve the reliability of the scheme during low or no insolation periods. A stator‐flux‐oriented control is implemented for regulating the terminal voltage within specified limit at a fixed frequency. The control strategy ensures fixed load voltage and fixed frequency even with perturbations of load or rotor speed. Different simulation results, verified by suitable experiments using a 1 kW, 415 V laboratory prototype, confirm the suitability of the proposed concept.