Title :
Enhanced modeling and control of VSIs in microgrids operating in grid-connected mode
Author :
Rese, Leonardo ; Costa, Antonio Simões ; Silva, Aguinaldo S E
Abstract :
This paper focus on the influence of filter dynamics on the performance and stability of current control loops of three-phase, pulse-width modulation (PWM) voltage source inverters (VSIs) in grid-connected operating mode. The analysis considers the application of those devices in microgrids. Based on a detailed state-space model of VSIs and their companion filters, enhanced controller design techniques are applied in order to prevent the drawbacks of conventional microgrid control strategies. The effectiveness of the proposed control strategy is verified via computer simulations.
Keywords :
PWM invertors; control system synthesis; distributed power generation; electric current control; power distribution control; power filters; power generation control; power grids; stability; VSI control; computer simulations; controller design techniques; current control loops performance; current control loops stability; filter dynamics; grid-connected operating mode; microgrid control strategies; state-space model; three- phase pulse-width modulation voltage source inverters; Current control; Equations; Integrated circuit modeling; Inverters; Mathematical model; State feedback; Voltage control; Inverter Control; LCL Filter; Microgrids; Voltage Source Inverter (VSI);
Conference_Titel :
Innovative Smart Grid Technologies (ISGT), 2012 IEEE PES
Conference_Location :
Washington, DC
Print_ISBN :
978-1-4577-2158-8
DOI :
10.1109/ISGT.2012.6175604
