Complementary power supply system of wind and photovoltaic power generation based on super capacitor power storage

Abstract

The invention relates to a wind energy and light energy complementary power supply system based on the energy storage of a super-capacitor, which comprises a DC / DC buck converter (20), an AC / DC converter (30), a super-capacitor unit (40), a DC / AC inverter (50), a DC / DC boost-buck converter (60), a photovoltaic array (70), a wind mill generator (80), an oil engine / commercial power interface (90), an AC load (100) and a DC load (200). The photovoltaic array (70) is connected with the super-capacitor unit (40) by the DC / DC buck converter (20). The wind mill generator (80) and the oil engine / commercial power interface (90) are connected with the super-capacitor unit (40) by the AC / DC converter (30). The super-capacitor unit (40) supplies power to the AC load (100) by the DC / Ac inverter (50) and the DC load (200) by the DC / DC boost-buck converter (60). The invention provides a super-capacitor energy storage device used for the wind energy and light energy complementary power supply system, which can continuously provide power for the communication systems and the residents in remote areas where a distribution network cannot reach.

Description

technical field [0001] The invention relates to a wind power generation and photovoltaic power generation complementary power supply system, in particular to a wind power generation and photovoltaic power generation complementary power supply system based on supercapacitor energy storage. Background technique [0002] With the increasingly prominent energy crisis, wind power, photovoltaic power generation and other clean and renewable energy power generation technologies are more and more widely used. Due to the natural complementarity of wind and solar resources, wind power and photovoltaic power generation complementary power generation has great development prospects. The power generation units of the wind-solar hybrid power supply system can be independently controlled and can work in coordination. The power supply security and reliability are relatively high, and it can provide uninterrupted power for communication facilities and residents' lives in remote areas such as ...

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to overcome the shortcomings of the existing storage battery used as an energy storage device in the wind-solar hybrid system, which has low service life, high system cost, difficulty in output in severe cold environments, and easy to cause environmental pollution, etc., to provide a wind-solar hybrid power supply system supercapacitor energy storage device

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