A Versatile Control Scheme for a Dynamic Voltage Restorer for Power-Quality Improvement

Roncero-Sanchez, P., Acha, E., Ortega-Calderon, J.E., Feliu, V. and Garcia-Cerrada, A. (2009) A Versatile Control Scheme for a Dynamic Voltage Restorer for Power-Quality Improvement. IEEE Transactions on Power Delivery, 24(1), pp. 277-284. (doi: 10.1109/TPWRD.2008.2002967)

Abstract

This paper presents a control system based on a repetitive controller to compensate for key power-quality disturbances, namely voltage sags, harmonic voltages, and voltage imbalances, using a dynamic voltage restorer (DVR). The control scheme deals with all three disturbances simultaneously within a bandwidth. The control structure is quite simple and yet very robust; it contains a feedforward term to improve the transient response and a feedback term to enable zero error in steady state. The well-developed graphical facilities available in PSCAD/EMTDC are used to carry out all modeling aspects of the repetitive controller and test system. Simulation results show that the control approach performs very effectively and yields excellent voltage regulation

• Item Type: Articles
• Keywords: COMPENSATION CONTROL STRATEGY DVR Dynamic voltage restorer (DVR) harmonic distortion LEVEL power quality (PQ) PWM REAL repetitive control ROBUST simulation system voltage sag
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Acha, Prof Enrique
• Authors: Roncero-Sanchez, P., Acha, E., Ortega-Calderon, J.E., Feliu, V., and Garcia-Cerrada, A.
• College/School: College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
• Journal Name: IEEE Transactions on Power Delivery
• ISSN: 0885-8977