Mechanically-coupled mini-type hybrid wind power generating system capable of storing energy in form of compressed air

Abstract

The invention relates to a mechanically-coupled mini-type hybrid wind power generating system capable of storing energy in form of compressed air. The mechanically-coupled mini-type hybrid wind power generating system capable of storing energy in the form of compressed air comprises a wind turbine, the wind turbine is in shaft connection with a planetary framework of a planetary gear through an electromagnetic brake I; a solar wheel shaft of the planetary gear is connected with a swirling compounding machine through a transmission mechanism; an electromagnetic brake II or a speed reducing motor are arranged on the solar wheel shaft; the swirling compounding machine is connected with an air storing device through an air passage; a flow control valve and a check valve are arranged on the air passage; the gear ring of the planetary gear is connected with a wind power generator through a synchronous transmission belt; and the wind power generator is connected with a current transformer. The mechanically-coupled mini-type hybrid wind power generating system capable of storing energy in the form of compressed air can regulate the rotation speed of the swirling compounding machine by a pneumatic control technology and change the rotation speed of the wind turbine, so that a maximum wind energy tracking function is realized; and the swirling compounding machine is used as an energy transforming device to store surplus energy which is not used for the moment in the form of compressed air, so that a storage battery is replaced and environment pollution is greatly reduced.

Description

technical field [0001] The invention relates to a wind power generation system, in particular to a mechanically coupled compressed air energy storage micro hybrid wind power generation system. Background technique [0002] As a clean renewable energy power generation method, wind power technology has been rapidly developed. However, current wind power technology, especially small wind power, has the following important problems: First, the fluctuation and intermittency of wind energy will cause large changes in output power, which will have a negative impact on the stable operation of the load; second, the traditional wind power system is a rigid electromechanical coupling system , the components such as fan blades, main shaft and motor are under great mechanical stress, resulting in high failure rate and high maintenance cost; thirdly, the current small wind power generation system generally does not control the wind power conversion link, resulting in relatively low wind e...

AI Technical Summary

Problems solved by technology

However, the current wind power technology, especially small wind power, has the following important problems: first, the fluctuation and intermittency of wind energy will cause large changes in output power, which will have a negative impact on the stable operation of the load; second, the traditional wind power system is a rigid electromechanical coupling system , the components such as fan blades, main shaft and motor are under great mechanical stress, resulting in a high failure rate and high maintenance costs; thirdly, the current small wind power generation system generally does not control the wind power conversion link, resulting in a relatively low wind energy utilization coefficient , the highest is only about 0.3; Finally, most small wind power systems use batteries as energy storage devices, but there are defects such as high maintenance requirements, short cycle life, and great pollution to the environment

This structure cannot realize the generation of electric energy, and cannot realize the tracking of the maximum utilization rate of wind energy by adjusting the speed of the wind turbine

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