In recent years, road lighting, landscape lighting, smart lighting, plant lighting, and other lighting fields have developed rapidly. The total amount of lighting energy consumption has gradually increased in proportion to total electrical energy consumption. For total energy to be scarce and the ecological environment to be destroyed, the vigorous development of solar lighting is extremely important. GTCAP supercapacitor batteries are green energy storage devices between traditional capacitors and batteries. Compared with batteries in the field of solar lighting, they are environment friendly, long charge and discharge cycle life (20000 times), long service life of 25 years, even short-circuit discharge without affecting their performance and life, and have a wide operating temperature ( -30 ℃ to +60 ℃), long-term use without maintenance, high power density and easy recycling, etc.

Solar street light system has a high value in road lighting. The solar LED street lamp system with GTCAP supercapacitor batteries belongs to composite energy systems. The power transmission in the system needs to be controlled online to ensure the normal operation of the system. Picture 1 shows the system structure of a solar LED street light with a GTCAP supercapacitor battery. As a core component, the controller manages the energy transmission between various components.

The solar LED street lamp system with a GTCAP supercapacitor battery is composed of a photovoltaic battery array, so that the energy generated by the photovoltaic cell is first stored in the GTCAP supercapacitor battery, and then the stored energy supply power to the battery through pulse or constant current at the appropriate time. It can effectively improve the solar energy utilization rate and light comfort of the system.