Research on the Construction Scheme of DC Street Lights in the Context of Distributed PV
LIU Jianwei
WANG Kan
LI Xuebin
LIU Xiaoou
Zhao Hao
LIU Jian
XU Wanwei
Abstract：The DC micro grid of the distributed photovoltaic system is one of the typical forms of comprehensive utilization of new energy.The DC system composed of distributed photovoltaic and street lamps has the characteristics of high reliability,high efficiency,energy saving,easy maintenance,and low cost.It is an important means to solve the problems of long power supply radius,low energy efficiency,easy leakage,tight power supply corridors,and difficult consumption of distributed power sources of a traditional AC-powered street lights.This paper introduces the development background of the DC-powered street lamp system in the context of distributed photovoltaic,focusing on the technical advantages of DC street lamps;summarizes the definition and system architecture of DC street lamps;reviews the voltage selection and determination,typical topology and wiring forms,and grounding methods in key technologies;proposes the the application modes of DC street lights in scenarios such as energy storage,distributed PV,and electric vehicle charging piles,and analyzes the economic benefits,energy saving and emission reduction benefits,and social benefits in combination with cases;Finally,some suggestions and prospects for the development of DC-powered street lamps in the context of distributed photovoltaic in China are put forward.This article is dedicated to verifying the application value of DC-powered street lamp technology in the context of distributed photovoltaic in terms of security,stability,reliability and economy,for the references of designers.
Keywords：distributed PVLED street lampDC power supply systemvoltage selectiontopology structuregrounding methodrenewable energycharging pilebenefit analysis
Publication Date：2024-08-28
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：8( 160-167 )