一种基于环境去耦模型的架空导线动态增容方法  

A Dynamic Capacity Increasing Method for Overhead Conductors Based on Environment Decoupling Model

作　　者：彭瑞东 邓红雷[1] 彭向阳 周迦琳 王锐 曾衍淇 郭德明 刘刚[1] PENG Ruidong;DENG Honglei;PENG Xiangyang;ZHOU Jialin;WANG Rui;ZENG Yanqi;GUO Deming;LIU Gang(School of Electric Power,South China University of Technology,Guangzhou,Guangdong 510641,China;Electric Power Research Institute of Guangdong Power Grid Co.,Ltd.,Guangzhou,Guangdong 510080,China)

机构地区：[1]华南理工大学电力学院,广东广州510641 [2]广东电网有限责任有限公司电力科学研究院,广东广州510080

出　　处：《广东电力》2022年第6期90-98,共9页Guangdong Electric Power

基　　金：中国南方电网有限责任公司科技项目(GDKJXM20185588);国家自然科学基金项目(51977083)。

摘　　要：动态增容技术评估现有输电线路隐性输送容量以提升其电能输送能力,然而现有的动态增容技术由于设备的安装维护和环境传感器的限制难以推广实施。为此,提出架空导线动态增容的环境去耦模型。在模型的建立中定义环境热交换关联参数表征铝球装置与导线和环境之间的关联特性。利用最小二乘法确定参数的最优表达式,使模型的计算不依赖环境参数。最后设计并搭建环境模拟实验平台模拟铝球装置的运行。利用实验数据对模型进行求解,将模型的载流量计算结果与IEEE标准结果进行对比,验证了模型的准确性。研究结果表明应用环境去耦模型计算导线载流量时,模型的误差不超过7%。It is able to improve power transmission capacity of the transmission line by using dynamic capacity increasing technology to evaluate its existing hidden transmission capacity.However,due to the limitations of installation and maintenance of the equipment and the environmental sensors,the existing dynamic capacity increasing technology is hard to be popularized and implemented.Therefore,an environmental decoupling model for dynamic capacity increase of overhead conductors is proposed.The environmental heat exchange relevant parameter is defined in the model to represent the correlation characteristics between the aluminum ball device,the conductor and the environment.The least square method is used to determine the optimal expression of parameter,so that the calculation of the model avoids the acquisition of environmental parameters.Finally,an environment simulation experimental platform is designed and built to simulate the operation of the aluminum ball device.The model is solved by using experimental data,and the result of the model is compared with IEEE standard result to verify its accuracy.The research results show that the error of the model is less than 7%when using the environmental decoupling model to calculate the ampacity of the conductor.

关 键 词：架空导线 动态增容 载流量计算 环境去耦模型 环境热交换关联参数 

分 类 号：TM726.3[电气工程—电力系统及自动化]