Title :
An active power self-synchronizing controller for grid-connected converters emulating inertia
Author :
Remon, Daniel ; Cantarellas, Antoni M. ; Rakhshani, Elyas ; Candela, Ignacio ; Rodriguez, Paul
Author_Institution :
Abengoa Res., Abengoa, Spain
Abstract :
Renewable energy sources are increasing their penetration in power systems, making necessary new control systems that offer services usually provided only by conventional generators. In this paper, an active power controller able to achieve synchronization with the grid and to control the DC link voltage is proposed. This controller allows identifying the converter with a virtual synchronous generator whose inertia can be modified online, considering that its virtual kinetic energy is stored in the DC link. Additionally, the resulting active power loop is a second order system whose damping factor can be defined freely.
Keywords :
power control; power convertors; synchronisation; synchronous generators; voltage control; DC link voltage control; active power controller; active power self-synchronizing controller; damping factor; grid-connected converters; renewable energy sources; virtual kinetic energy; virtual synchronous generator; Capacitors; Frequency control; Renewable energy sources; Synchronization; Synchronous generators; Transfer functions; Voltage control; DC link voltage control; active power control; grid synchronization; inertia emulation; integration of renewable energy sources;
Conference_Titel :
Renewable Energy Research and Application (ICRERA), 2014 International Conference on
Conference_Location :
Milwaukee, WI
DOI :
10.1109/ICRERA.2014.7016421