Application of super capacitor in UPS system

In the power UPS system, the use of supercapacitors as the DC energy storage components of the frequency converter or inverter has the unparalleled advantages of batteries or electrolytic capacitors . Especially at medium and high voltage, a series of problems caused by the series connection of dozens or even hundreds of batteries are avoided. Compared with electrolytic capacitors, it is not only easy to maintain, but also reduces costs and improves the reliability of UPS equipment.

When the mains is disconnected, the supercapacitor will supply power for a short time to provide DC voltage to the inverter to supply the load, and at the same time provide enough starting current for the generator to start. The generator starts reliably and eliminates the unstable factors caused by the battery as a standby power supply. When the power generation starts, the super capacitor can be used as a super filter in the DC circuit of the inverter to eliminate the voltage fluctuation of the generator under the condition of load fluctuation, such as mains high voltage, mains low voltage, instantaneous voltage drop, reduction Amplitude vibration, high voltage pulse, voltage fluctuation, surge voltage, harmonic distortion, clutter interference, frequency fluctuation and other power problems. Then make sure that the power supply to the load is stable.