Analysis of state-of-the-art converter topologies for interfacing of hydrogen buffer with renewable energy systemsAndrijanovitš, Anna; Steiks, Ingars; Zakis, Janis; Vinnikov, DmitriScientific journal of Riga Technical University. Serija 4, Power and electrical engineering2011 / p. 87-94 : ill https://ui.adsabs.harvard.edu/abs/2011SJRUP..29...87A/abstract Current sensorless control algorithm for single-phase three-level NPC inverterSuzdalenko, Alexander; Zakis, Janis; Steiks, IngarsScientific Journal of Riga Technical University. Electrical, control and communication engineering2014 / p. 28-33 : ill Verification of current sensorless control for single-phase NPC multilevel inverterSuzdalenko, Alexander; Zakis, Janis; Steiks, Ingars; Chaiko, Yelena2015 9th International Conference on Compatibility and Power Electronics (CPE) : proceedings : Faculty of Science and Technology (FCT), Caparica, Lisbon, Portugal, 24-26 June, 20152015 / p. 462-466 : ill http://dx.doi.org/10.1109/CPE.2015.7231119