Tuning of proportional resonant controllers for three phase PV power converters with LCL+trap filter
Location: Chicago, USA
Publication date: 2014-04-14
Published in: IEEE PES T&D Conference and Exposition 2014, Chicago (USA) - PES 2014
ref. DOI: 10.1109/TDC.2014.6863372

Local members

Alvaro Luna

PhD. Senior Researcher.

Weiyi Zhang

Junior Researcher

External members

Cantarellas, Antoni M, Remon, Daniel



Power generation facilities based on renewable energy sources, such as PV or wind, are frequently connected to the grid through three-phase power converters. As the power of the plant increases, the design of the grid connection filters becomes critical, as a fast dynamic performance is needed while the injection of current harmonics to the network should be prevented. LCL filters, together with trap filters tuned at the switching frequency, provide a good trade-off between both needs. However, the tuning of the controllers becomes more complex as the LCL+trap filter lead to a considerably higher order system. In this paper a tuning method for determining the parameters of proportional resonant current controllers for three-phase high power converters linked to the grid through a LCL+trap filter is proposed and analyzed. In order to validate the proposed solution, different results taken in different scenarios are shown.


Associated projects

National public