Solar energy collection composite micro-energy system and method for realizing supercapacitor charging control

Abstract

The invention discloses a solar energy collection composite micro-energy system and a supercapacitor charging control method belonging to the technical field of new energy composite. The composite microenergy system is composed of a solar battery, a solar energy collection circuit, a battery protection circuit, a lithium battery, and a supercapacitor charging The solar battery, the solar energy collection circuit, the battery protection circuit, the lithium battery and the controller are connected in series to form a loop, and the supercapacitor charger is connected to the solar energy collection circuit, the controller and the supercapacitor respectively. Composition of solar energy collection composite micro-energy system; the supercapacitor of the system supplies power to the wireless sensor node through the output regulation circuit. This system uses lithium batteries and supercapacitor composite energy storage, which can simultaneously achieve larger energy storage capacity and higher power output. It can provide energy for wireless sensor nodes for a long time. And it can adapt to different load conditions, so that the lithium battery capacity decays slowly and has a long life.

Description

technical field [0001] The invention belongs to the technical field of new energy recombination, and in particular relates to a solar energy collection and recombination micro energy system and a supercapacitor charging control method. Background technique [0002] With the development of electronic technology and Internet of Things technology, the application of wireless sensor network technology in reality is becoming more and more common. It is estimated that there will be more than 10 billion IoT nodes and devices in the world by 2020. Among them, wireless sensor network nodes occupy a large part of the Internet of Things nodes. Wireless sensor network nodes have sensing, processing and communication functions, and consume a lot of power. The energy supply problem is an important bottleneck that limits the development of wireless sensor node technology. [0003] The power supply method of traditional wireless sensor nodes is to use disposable batteries. However, due t...

AI Technical Summary

Problems solved by technology

[0007] Patent CN 108418252A discloses a wireless sensor hybrid energy harvesting device and operation method, which collects solar energy and wind energy and stores them in energy storage capacitors and lithium batteries. None of the details

Patent CN 109617210A discloses a composite micro-energy system suitable for small loads and its energy management method, which uses supercapacitors and lithium batteries to store energy, but this energy management method has high hardware implementation costs

Images