1. N. Al.Khayat, R. Seliga, W. Koczara, B. Kaminski, A. Krasnodebski: DSP Control of Variable Speed Integrated Generator, IEEE-ISIE 2002, International Seminar on Industrial Electronic, L’Aquila, Italy, July 2002.
2. Z. Chlodnicki, W. Koczara: Supercapacitor Storage Application For Reduction Drive Negative Impact On Supply Grid, CPE-2005 - Compatibility in Power Electronics, Gdynia, Poland, 1-3 June 2005r.
3. Z. Chlodnicki, W. Koczara, Nazar-Al-Khayat: Laboratory Simulation of the Adjustable Speed Generation Systems, 12thInternational Power Electronics and Motion Control Conference - EPE-PEMC 2006, 30.08-1.09 2006, Portoroz, Slovenia.
4. Z. Chlodnicki, W. Koczara, Nazar-Al-Khayat: Modeling of Adjustable Speed Generation System with Liquid Fuel and Gas Powered Engine, PELINCEC 2005, 16-19 October 2005, Warsaw, Poland.
5. Z. Chlodnicki, W. Koczara, Nazar-Al-Khayat: Supercapacitor Energy Storage for Power Quality Improvement of Generating System, ESSCAP 2006, 2-3 November 2006, Lausanne, Switzerland.