System and method for generating power by river flow

摘要

The present invention relates to a system and a method for generating power by river flow. The system includes: a wheel disc fixedly disposed relatively to water current; a floating body floating on the water current; a baffle disposed on the floating body, inserted into the water current during generating power, and driving the floating body to run downstream with the push of the water current; a flexible chain with one end fixedly connected to the floating body and the other end wound around the wheel disc, and dragged to drive the wheel disc to rotate when the floating body runs downstream with the push of the water current; and a power generator connected to a rotation axis of the wheel disc and driven for generating power when the wheel disc rotates. The method may be a method executed by the system in the present invention. Another method comprises: two floating bodies running to alternately drive two wheel discs for generating power. The present invention can fully utilize kinetic energy resource of water current so as to increase the amount of power generation and the implementing method is simple and convenient to be promoted at water areas of various rivers.