DC long-distance power supply system

The "one-line dual-use" DC remote power supply system is a high-voltage DC remote power supply equipment based on a single-line series topology. Its core innovation lies in: the use of a copper core wire in the photoelectric composite cable to simultaneously complete DC power transmission and step-by-step series power supply, to achieve "one-line dual-use"-both transmission of DC power, and the use of optical fiber in the photoelectric composite cable to transmit communication signals, to achieve the same cable transmission of power and signals. Different from the traditional parallel DC remote supply, the system adopts the method of single-wire series load one by one: the front-end DC high-voltage power generator rectifies the AC power of the machine room and converts PWM into bipolar DC high-voltage power suspended to the ground, which is transmitted through a single-wire cable.

Product overview DC remote power supply system is a remote power supply system that transmits and receives DC power over a long distance through power cables. The system consists of two parts: local end equipment (near-end machine) and remote end equipment (remote end machine): the local end equipment boosts and converts the AC or -48V DC in the machine room into high-voltage DC, and transmits it to the remote end through photoelectric composite cable or power cable. The remote end equipment then converts the high-voltage DC step-down into the standard voltage required by the load (such as DC48V, AC220V, etc.), provide stable and reliable power supply for remote communication equipment or external field equipment. This technology fundamentally solves