Power-Quality Improvement of a Stand-Alone Induction Generator Using a STATCOM With Battery Energy Storage System

• Published in: IEEE transactions on power delivery Vol. 25; no. 4; pp. 2734 - 2741
• Main Authors: Barrado, J A, Grino, R, Valderrama-Blavi, H
• Format: Journal Article Publication
• Language: English
• Published: New York, NY IEEE 01-10-2010; Institute of Electrical and Electronics Engineers; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Applied sciences; Batteries; Battery; Battery energy storage (BES) system; Bidirectional; Converters; Convertidors; Electric batteries; Electric generators; Electric machinery industry; Electric power plants; Electrical engineering. Electrical power engineering; Electrical power engineering; Electronics; Energy storage; Enginyeria mecànica; Exact sciences and technology; Generadors; High voltage or high current generators; Induction generators; Maquinària elèctrica; Mecànica; Miscellaneous; Operation. Load control. Reliability; Power electronics, power supplies; Power networks and lines; relay feedback control; Relays; Ripples; self-excited induction generator (SEIG); self-oscillating bidirectional converter; STATCOM; static compensator (STATCOM); Various equipment and components; Voltage control; Àrees temàtiques de la UPC; Performance evaluation; Power converter; Bidirectional link; Asynchronous generators; Feedback regulation; Battery energy storage (BES) system; Energy storage system; Hysteresis loop; Static reactive compensator; self-oscillating bidirectional converter; Self excitation; Resistive load; Selfoscillation; Energy quality; static compensator (STATCOM); Bridge convertor; relay feedback control; Battery storage plants; Direct current convertor; Secondary cell; Power electronics; self-excited induction generator (SEIG); Voltage source converter; Electrical network; Relay control; Service quality; Energy storage
• ISSN: 0885-8977; 1937-4208
• DOI: 10.1109/TPWRD.2010.2051565

This paper presents a STATCOM with a self-oscillating bidirectional dc-dc converter for interfacing battery energy storage in a stand-alone induction generator system. The self-oscillation mode is based on relay feedback control with hysteresis. To reduce the output current ripple, an LCL filter is connected between the half bridge of this dc-dc converter and the energy storage system. The other side of bidirectional converter is coupled with a voltage-source converter. The proposed control allows that the previous electronic converters, with an additional resistive dump load, compensate all disturbances in a self-excited induction generator due to three-phase four-wire loads and an improvement of system efficiency. The simulated results show good performance of the stand-alone power system under different loading conditions.