Selection of components for photovoltaic system

摘要: Purpose: The aim of the paper is to determinate basic parameters for components demonstrative system which traffic light pedestrian crossing. Design/methodology/approach: Photovoltaic module was produced from monocrystalline silicon solar cells were joined in series. consists module, astable generator, step-down converter and battery pack. Findings: Its necessary protect photovoltaic external factor like unstable conditions, variable input voltage, shading. Taking this fact into account with step- down designed. Step-down adjust voltage protecting them overcharging discharging. Research limitations/implications: main goal work show practical use widely available, renewable energy source, Sun through selection component -traffic Practical implications: In order provide access electricity areas limited power network, there irreplaceable are stand-alone systems, can supply both AC DC devices. Originality/value: confirms usefulness every place where sunlight available. steady at night low stores applied.