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Open Access Article

Advances in Resources and Environmental Science. 2022; 1: (1) ; 1-4 ; DOI: 10.12208/j.aes. 20220001.

Reaserch on a Calculation Method of Current Rating for DC Cable Used in Photovoltaic Power Station
光伏电站直流系统电缆载流量的计算方法研究

作者: 季光兴*, 赵益超

通威新能源有限公司 四川成都

东方电气集团东方锅炉股份有限公司 四川成都

*通讯作者: 季光兴,单位:通威新能源有限公司 四川成都;

发布时间: 2022-01-06 总浏览量: 247

摘要

本文分析了并网光伏电站直流汇集系统的结构、特性和具体参数。基于直流电传输的特点,依据IEC算法建立了电缆载流量的数学模型,并结合常见的光伏电站直流系统方案作了相关分析。文章最后给出了建议载流量,对光伏电站工程设计中的电缆直流载流量计算和电缆选型能提供一定的参考。

关键词: 光伏电站;直流载流量;载流量计算

Abstract

This paper analyzes the structure, characteristics and the parameters of the DC collection system in a photovoltaic power station. A mathematical mode of cable calculation for the current rating is established, based on the characteristics of DC current, and relevant analysis is also made, combined with common photovoltaic power station DC system. Finally, a recommended current carrying capacity is shown, in order to provided a valid reference for the calculation and selection of DC current rating for cables in the engineering design of photovoltaic power station.

Key words: Photovoltaic Power Station; DC Current Rating; Calculation on the Current Rating

参考文献 References

[1] 王宏飞,尚爱民,王长发, 等. 基于直流和交流传输下城市轨道交通直流电缆连续载流量计算与分析[J].电线电缆,2015,(3):1-5.

[2] JB/T 10181.1~10181.6-2000 电缆载流量计算[S].

[3] IEC 60287-1-1 Electric cables-Calculation of the current rating-Part 1-1: Current rating equations(100% load factor)and calculation of losses-General [S].

[4] IEC 60287-2-1 Electric cables-Calculation of the current rating-Part 2: Thermal resistance-Section 2.1 Calculation of thermall resistance [S].

[5] IEC 60038-2009 IEC standard voltages [S].

[6] GB/T 3956-2008 电缆的导体[S].

[7] GB/T 12706.1-2008 额定电压1kV(Um=1.2kV)到35kV(Um=40.5kV)挤包绝缘电力电缆及附件[S].

[8] GB 50217-2018 电力工程电缆设计标准[S].

引用本文

季光兴, 赵益超 光伏电站直流系统电缆载流量的计算方法研究[J]. 资源与环境科学进展, 2022; 1: (1) : 1-4.