Composite complementary breeze self-energy-supply device for high-voltage transmission line

The invention relates to a composite complementary breeze self-powered device for a high-voltage transmission line, and belongs to the field of energy conversion. According to the scheme, the complementarity of the electromagnetic power generation technology and the friction power generation technology on the starting wind speed and the efficient energy harvesting interval is combined, and the energy conversion efficiency of the wide wind speed interval is improved; the device size and the structure and performance matching of two different types of generators are reasonably designed, a dual-source energy management circuit based on an LTC3588-1 chip is provided, collected and converted electric energy is rectified, stored and then depressurized into direct-current electric energy which can be directly used by a sensor, a self-energized system is constructed on the basis, and the self-energized electric energy can be directly used by the sensor. The problem of energy supply of a large number of distributed se