River power generation system

Abstract

The invention discloses a river power generation system. The river power generation system comprises a water retaining device and a power generation device, wherein the power generation device comprises a first rack, a first suspension frame and a power generation module; the power generation module comprises a bracket, a power generator and a power generation driving mechanism; a power generation wheel set is rotationally connected with the bracket through a rotating shaft.; the power generation wheel set is connected with a main shaft of the power generator through a synchronous transmission mechanism; the power generation module further comprises a friction braking mechanism; the water retaining device comprises a second rack, a second suspension frame and a water retaining mechanism, and a water inlet is formed in the second suspension frame; and the water retaining mechanism comprises a first baffle, a second baffle and a water retaining driving mechanism. According to the river power generation system, the rotating speed of the river power generation system can be adjusted in a self-adaptive mode according to the flow or the flow speed of a river, so that it is guaranteed that the river power generation system works within a proper rotating speed range, and the situation that the river power generation system and a power supply line or power supply equipment connected with the river power generation system are damaged due to overhigh output voltage of the river power generation system is prevented.

Description

technical field [0001] The invention relates to a power generation device, in particular to a river power generation system. Background technique [0002] Hydropower is a renewable, energy-free, green and clean energy that does not produce carbon dioxide and other environmental pollution, so it is strongly advocated by the state. Traditional hydroelectric power generation is to use the drop of water to impact the blades of the water turbine to drive the generator to generate electricity, and convert the potential energy into electrical energy. Its technical characteristics are closely related to water flow and water drop. The greater the water flow, the greater the water drop, and the greater the amount of electricity that can be generated. In the existing technology and practice, in order to achieve large water volume and large drop, water conservancy dams are usually built to intercept the water. On this basis, hydroelectric power generation facilities are built, and hig...

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Problems solved by technology

[0003] However, building dams can make use of the potential energy difference to generate electricity, but building dams will also bring about many social problems, and in many gentle water basins, the potential energy difference is small, and it is impossible to build dams everywhere to use water energy, so How to use the water flow in a relatively flat area has become a goal of exploration. At present, in the process of power generation of existing river power generation devices, some factors often cause the water flow to be too fast, which leads to the high speed of the main shaft of the generator, which in turn leads to power generation. The output voltage of the machine is too high, and the high output voltage is easy to cause damage to the generator and the power supply line (power supply equipment) connected to it. work in the rev range, but this is far from enough, there is room for refinement and improvement

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