segunda-feira, 10 de abril de 2017
Output Voltage Quality Evaluation of Stand-alone Four-Leg Inverters Using Linear and Non-Linear Controllers- Instituto Superior de Engenharia de Lisboa
Output Voltage Quality Evaluation of Stand-alone Four-Leg Inverters Using Linear and Non-Linear Controllers Ricardo Luís , José Fernando Silva and José Carlos Quadrado
Instituto Superior de Engenharia de Lisboa, Polytechnic Institute of Lisbon,
Abstract:
This paper presents the design and experimental voltage quality evaluation of controllers for the output voltages of 3-phase four-leg voltage source inverters. These inverters are needed in stand-alone power systems to supply linear and non-linear, balanced or unbalanced loads with constant RMS value voltages at fixed frequency. Comparisons include closed loop outer voltage controllers based on predictive, sliding mode and decoupled proportional-integral controllers in dqo synchronous space, fitted with an inner hysteretic current loop vector controller in abg space. The 3-phase four-leg VSI output voltages waveform quality is analysed under unbalanced and non-linear loads. Received: 7 February 2017; Accepted: 29 March 2017; Published: 9 April 2017
Download PDF [5971 KB, uploaded 9 April 2017]
http://www.mdpi.com/1996-1073/10/4/504/pdf
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