摘要
Abstract
Reducing costs and increasing efficiency has always been the goal pursued by PV power stations,and selecting appropriate cable specifications and arranging electrical equipment positions can save material costs for PV power stations.This paper compares the PV array design schemes of completed ground PV power stations and distributed PV power stations from the perspectives of equipment layout location and cable laying method.Taking a wind-solar complementary PV power station as an example,the influencing factors and construction management during the actual cable laying process are analyzed.The analysis results show that:1)For one PV array in a ground PV power station,whether using copper core cables or aluminum alloy core cables,the cost of per watt cable when using a box inverter integrated machine is better than that when using a string inverter.2)For distributed PV power stations,when copper core cables are used and string inverters are arranged in a centralized manner,the per watt cables cost of PV power stations is lower;When aluminum alloy core cables are used,per watt cables cost of PV power station is lower when the string inverter is arranged in a dispersed manner.3)In the actual laying process of cables,their usage is easily affected by factors such as terrain,structural form of PV bracket,height of the lowest point on the inclined surface of PV brackets from the ground,depth of cable laying,and equipment installation height,making their actual usage greater than the design usage of wiring software.In the hope that this study can provide reference for the cable laying methods and cable selection of future PV power generation projects.关键词
地面光伏电站/分布式光伏电站/电缆成本/电缆敷设/铜芯电缆/铝合金芯电缆Key words
ground PV power stations/distributed PV power stations/cable cost/cable laying/copper core cable/aluminum alloy core cable分类
信息技术与安全科学
