The use of graphs is proposed for the research of operation of autonomous low-going wind-driven power plant, which is assigned for work under conditions of weak and mild air flows. Calculation scheme is formed on the basis of graph of structure of the vehicle constructive scheme. Further, the graph of level structure of couplings of generalized coordinates of mathematical model is written. It allows writing a mathematical model of the corresponding difficulty depending on the set tasks of the research. Equations make it possible to research and forecast mode of its work under various conditions of the wind loading as well as selection of power.