Mechanical energy storage wind power generation system
A technology of wind power generation system and mechanical energy storage, which is applied in the direction of wind power generator, wind power motor combination, renewable energy power generation, etc. It can solve the problems of temperature sensitivity, surrounding environmental pollution, and large battery volume, so as to reduce pressure and resistance and ensure The effect of power quality
Inactive Publication Date: 2016-09-28
ZHEJIANG GONGSHANG UNIVERSITY
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Problems solved by technology
However, the battery is bulky and expensive, and its life is often short, usually only 1 / 2 of the life of the wind turbine. At the same time, the charging and discharging of the battery is sensitive to temperature, and the failure rate is very high during frequent charging and discharging, which makes operation and maintenance difficult.
In addition, after the battery is scrapped, it will also pollute the surrounding environment.
Method used
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[0030] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:
[0031] A mechanical energy storage wind power generation system, such as figure 1 As shown, it includes: fan 9; air thrust bearing 16, located below fan 9, connected and supporting fan 9; generator 13, which is driven by the rotor; power converter 14, which is electrically connected to the generator 13, and Control the power output from the generator 13 to the power system; it also includes a motion mechanical energy storage unit 15, the motion mechanical energy storage unit 15 is connected to the fan 9 and the generator, and then connected to the power converter 14 through the generator.
[0032] Such as Figure 9 As shown, the fan 9 includes blades 21 for bearing wind force; a rotor 25 connecting several blades 21; the blades 21 are provided with a plurality of ventilation openings 22; the blades 21 are also provided with ventilation openings...
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The invention discloses a mechanical energy storage wind turbine system which comprises a draught fan, an air thrust bearing, a power generator, an electric power converter and a motion mechanical energy storage unit, wherein the draught fan is a vertical axis wind turbine which is provided with blades and a rotor, the blades are in mechanical connection with the rotor, the air thrust bearing is located below the draught fan and is connected with and supports the draught fan, the power generator is driven by the rotor, the electric power converter is connected with the power generator and controls the power generator to output electric power to an electric power system or electric equipment, and the motion mechanical energy storage unit is connected with the draught fan and the power generator and then is connected to the electric power converter through the power generator. According to the mechanical energy storage wind turbine system, wind energy storage is achieved through the mechanical energy storage unit by means of the physical method, and limitation of chemical batteries is broken through; the vertical axis wind turbine and the air thrust bearing are adopted; the motion mechanical energy storage unit is adopted to store and release energy, energy storage and power generation are carried out in sequence, power generation is not affected by wind power anymore, and electric power quality is guaranteed. The mechanical energy storage wind turbine system is suitable for power utilization in villas, small-scale communities, small-scale microwave communication stations, movable communication base stations and the like.
Description
technical field [0001] The invention relates to a wind power generation device, in particular to a mechanical energy storage wind power generation system. Background technique [0002] Among various distributed power generation technologies, wind power generation, as a safe and reliable clean energy, has been favored by the energy circles of various countries. Since the early 1990s, wind power has developed rapidly, and the average annual growth rate of the world's installed wind power capacity has exceeded 30%. It is estimated that the installed capacity of wind turbines in the world will reach 1.245 billion kW by 2020, accounting for 12% of the world's electricity consumption. Therefore, wind energy will be the most promising green energy in the 21st century and the main new power source for the sustainable development of human society. China is the world's second largest energy consumer after the United States, but China's coal resources are very poor. The development ...
Claims
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IPC IPC(8): F03D9/10F03D3/00F03D80/70
CPCY02E10/74Y02E70/30
Inventor 李同强
Owner ZHEJIANG GONGSHANG UNIVERSITY