Upgrading and reconstruction method for street lamp power supply system

Abstract

The invention discloses an upgrading and reconstruction method for a street lamp power supply system. The method comprises the steps: converting each phase of alternating-current power supply in a conventional street lamp power supply system into a first direct-current power supply, and forming a double-circuit or double-loop annular power distribution network with a second direct-current power supply connected at the other side; breaking a direct-current distribution bus at a plurality of preset access points on the direct-current distribution bus; connecting the left and right ends of the breakpoint of the direct-current distribution bus to the two ends of an intelligent control device respectively, connecting one end of an electric energy adaptation device to the third end of the intelligent control device, and connecting one end of a load cable to the other end of the electric energy adaptation device; and connecting the load to the other end of the load cable. Compared with the prior art, the method can access a plurality of electric equipment without replacing original alternating current distribution cables or relaying a power supply system, so that construction and cost arereduced; and when the power supply system of the street lamp breaks down, early warning is carried out in time and corresponding fault points are isolated, so that the power supply reliability of thesystem is improved, and the power supply safety of the system is improved.

Description

technical field [0001] The invention relates to the technical field of power distribution, in particular to an upgrading method for a street lamp power supply system. Background technique [0002] At present, with the development of science and technology, the number of emerging equipment such as security monitoring, 5G and other wireless communication base stations, traffic monitoring systems, Internet of Things equipment, environmental monitoring equipment, weather monitoring equipment, wireless WIFI and charging piles is constantly increasing, and among them There is no shortage of secondary or primary loads, and the installation of their equipment and the laying of their power supply systems bring huge construction and cost problems. [0003] In order to solve the above problems, the existing idea is to use the street lamp pole in the street lamp system as a carrier, carry the above-mentioned equipment, and make full use of the original street lamp power supply system, t...

AI Technical Summary

Problems solved by technology

However, since the traditional street lamp power supply system only guarantees the power consumption of the street lamp load, which is a third-level load, if it is to meet the power consumption requirements of the new load and some of the first-level and second-level load requirements, it is necessary to re-lay the power supply system, excavate the trunking, Replacing cables, setting up two-way power supply linkage devices, etc., requires a huge amount of construction work and extremely high construction costs

And when the AC220V AC remote power distribution system is used, if a certain phase of the AC power supply fails, all loads on this phase will be powered off; if a distribution cable of a certain phase is short-circuited, all loads on this phase will be powered off; All loads behind the open circuit of this phase are powered off, resulting in low reliability of system power supply

Moreover, when the existing street lamp power supply system fails, it is impossible to give early warning and isolate the corresponding fault point in time, so there is a large power supply safety hazard

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