The goal is to identify the problems of food supply in country, development a set measures aimed at improving efficiency agricultural production. Along with principles dialectical approach this study, its methodological basis following methods – monographic, scientific abstraction, statistical, complexity, consistency. Results author's interpretation concept "food security" from economic point ...

this paper presents a control strategy for fuel cell/energy storage power generation system during voltage sag conditions. the hybrid dc power sources are connected to grid using power electronic converters include dc-dc converter and grid connected voltage source inverter. the power from hybrid power sources is controlled during voltage sag by designing of control strategy for dc-dc converter....

In this paper a repetitive control (RC) approach to improve current sharing between parallel-connected boost converters in DC microgrids is presented. The impact of changes in line impedance on current sharing is investigated. A repetitive controller is designed and connected in series with current controller of the boost converters to control the switching signals such that by regulating of th...