ULTRA-HIGH-VOLTAGE LINE ENERGY HARVESTING POWER SUPPLY AND SYSTEM

An ultra-high-voltage line energy harvesting power supply and system is provided. The power supply includes an energy harvesting unit that acquires electric energy from an ultra-high-voltage line and converts the electric energy into a stable DC power supply output, an energy supply unit that converts the stable DC power supply into a load AC/DC power supply and supplies the load AC/DC power supply to an energy supply unit of a load and an equipotential connection line, wherein two ends of the equipotential connection line are respectively connected to the ultra-high-voltage line and an output end of the energy supply unit. The energy harvesting unit includes an energy harvesting device for acquiring electric energy from the ultra-high-voltage line, and an AC/DC energy harvesting management circuit for converting the electric energy acquired by the energy harvesting device into a stable DC power supply and outputting the stable DC power supply.