HYDROELECTRIC GENERATOR IN LOW FLOW RATE CONDITIONS

摘要

A hydroelectric generator in low flow rate conditions, relating to the technical field of power equipment. The hydroelectric generator comprises a load-bearing body, a hydraulic runner connected to the load-bearing body, and a generator directly or indirectly driven by the hydraulic runner. An axially constrained horizontal revolute pair is formed by the load-bearing body and the hydraulic runner; the load-bearing body or the hydraulic runner comprises a buoyancy device capable of generating buoyancy for reducing the self-weight of the load-bearing body or the hydraulic runner. Thus, the power generation efficiency is improved, and costs for building dykes and reservoirs in existing tidal energy power generation are saved.