Аннотация:A new type of wind turbine is proposed. A blade is attached to a
connected rod of an antiparallel link mechanism. The blade interacts with air flow.
A rotor of an electrical generator is fixed on an axis of a crank. The mathematical
model of electro-mechanical system is constructed. The interaction between blade
and flow is described using quasi-static approach. A working regime of the turbine
corresponds to an attracting periodic trajectory of the dynamic system. Sufficient
conditions of existence of such periodic trajectories are obtained by the Poincare-
Pontryagin asymptotic method. Bifurcation diagrams are constructed. A prototype
is tested in a wind tunnel.