Underwater ducted hydroelectric power generation system

An underwater ducted hydroelectric power generation system, comprising:

• a floating installation platform;
• a lifting pipe;
• a water inlet pipe;
• a ducted coreless hydroelectric generator;
• a platform connector;
• a ducted coreless water transfer pump;
• and
• a return pipe;
• wherein the floating installation platform comprises an upper structure and a bottom structure;
• the lifting pipe is fixedly installed on an underwater ground;
• the bottom structure is slidably connected to the lifting pipe;
• the upper structure is slidably connected to the lifting pipe;
• and the platform connector is configured to lock the bottom structure with the upper structure as a whole;
• and
• the water inlet pipe is connected to the return pipe to form a ducted U-shaped pipe perpendicular to a water surface, and the ducted U-shaped pipe is arranged under the water surface, and is configured to carry the ducted coreless hydroelectric generator and the ducted coreless water transfer pump.