Title :
Modelling and control of a 100kW photovoltaic inverter with an LCL grid filter for distributed power systems
Author :
Figueres, Emilio ; Garcera, G. ; Sandia, J. ; Gonzalez-Espin, F.J.
Author_Institution :
Camino de Vera S/N, Valencia
Abstract :
The aim of this paper is to analyze the control loops stability of three-phase photovoltaic inverters for distributed power generation. The main issues regarding the design of the control stage are outlined, including a small signal model of the photovoltaic cells for control purposes and the influence of high order grid filters on the system stability. Experimental results carried out on a 100 kW inverter are presented to validate the analytical results. The experimental inverter generates a balanced set of currents with a distortion lower than 3%.
Keywords :
distributed power generation; invertors; photovoltaic power systems; power filters; power generation control; power system stability; control loop stability; distributed power generation system; high-order LCL grid filter; power 100 kW; small signal model; three-phase photovoltaic inverter; Inverters; Photovoltaic systems; Power filters; Power system analysis computing; Power system control; Power system modeling; Power system stability; Power systems; Solar power generation; Stability analysis; Power electronics; control of power converters; distributed power generation; renewable energy;
Conference_Titel :
Power Electronics and Applications, 2007 European Conference on
Conference_Location :
Aalborg
Print_ISBN :
978-92-75815-10-8
Electronic_ISBN :
978-92-75815-10-8
DOI :
10.1109/EPE.2007.4417682
