There are many applications of supercapacitors, where the advantages of instantaneous high power are mainly played, including power supply and distribution industry, transportation field, heavy machinery field and so on.
Supercapacitors in series mainly includes suppressing the fluctuation of power generation and the backup power supply of fan pitch.
New energy power generation, such as wind power generation and photovoltaic power generation, is greatly affected by natural conditions, and the power generation is extremely unstable. It is considered as garbage power by large power grid, which limits the scale of its grid.
The supercap bank is set at the entrance of the new energy power station. When the power generation is high, part of the higher than average power is stored; when the power generation is low, the stored electric energy will be added to the grid power, which acts as a buffer to stabilize the fluctuation of grid power and improve the quality of new energy grid power. The role of micro grid is similar to that of new energy power station, which plays the role of reservoir.
In the process of wind turbine pitch, the angle of wind turbine blade needs to be adjusted at any time according to the wind power and wind direction, so as to achieve the purpose of stable power generation. The adjustment of blade needs external source of electricity as power. If there is a sudden increase in wind power and the fan blade can not adjust the angle in time, the wind turbine or the wind turbine power generation system may suffer the test of large torque and impact power generation, so the pitch power supply needs to be stable and reliable. As a backup power supply, supercap has long life and long replacement cycle; On the other hand, the working environment of supper capacitor is not demanding, and the range of ambient temperature is wide.
Supercapacitors are also widely used in the field of transportation, which is our most concerned field. The applications in the field of heavy machinery are mainly cranes and elevators, where the potential energy changes greatly during the working process. With discharge during the rising process, the supercapacitor provides high-power force for system startup; When the system goes down, the energy is recovered. Statistics show that this application can save 40% of energy in the system.
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