The thesis is devoted to elaboration to power electric converters for hydrogen energy equipment. The load difference of hydrogen energy equipment connected in series and parallel, a DC/DC converter and a DC/AC converter for hydrogen energy equipment has been investigated and elaborated. The first chapter of the thesis is devoted to research and simulation of the hydrogen energy equipment. It also includes experimental elaboration and analyze of the hydrogen energy equipment in series and in parallel connection. The second chapter contains analyze of DC/DC converters with an active clamping possibility and multilevel DC/AC converters. Simulations of power electric converters for hydrogen energy equipment have been presented in the third chapter. It also includes control algorithms of power converters. Chapter four represents experimental set-up of power electric converters and additional equipment for hydrogen energy equipment. The thesis is written in Latvian language, contains: 146 pages, introduction, 4 chapters, conclusions, 130 figures, 34 formulas, 11 tables, 103 references and 7 appendixes.