基于HWLL的同期线损模型研究  

Research on Synchronous Line Loss Model Based on HWLL

作　　者：李平 张鹏岩 安宇 史晓超 韩保锋 LI Ping;ZHANG Pengyan;AN Yu;SHI Xiaochao;HAN Baofeng(State Grid Kuitun Electric Power Co.,Ltd,Kui Tun,XinJiang 833200,Chian)

机构地区：[1]国网奎屯供电公司,新疆奎屯833200

出　　处：《自动化与仪器仪表》2024年第9期215-220,共6页Automation & Instrumentation

基　　金：国家重点研发计划(2022YFE0105200)。

摘　　要：同期线损是电力系统运行中一个重要的指标,其反映了电网输电线路的效率和负载状况。目前,半波长线路(Half-wavelength lines, HWLL)传输已被研究为应用于超长距离电力传输的替代方案。因此,基于HWLL输电线路,提出了一种同期线损的评估模型。首先,通过相量图计算分析了沿线的电压和电流幅值分布。其次,提出了HWLL输电线路的同期线损的代数表达式,用于HWLL的经济评估。最后,仿真实验表明所提出的模型计算值与实际线路损耗存在较高的一致性与拟合度,因此,应用所提出的模型可以清楚地了解其在不同负载情况下的运行状态。同时,研究为电力系统的运营和规划提供了重要的参考依据,有助于提高系统的效率和可持续性。The synchronous line loss is an important indicator in the operation of the power system,which reflects the efficiency and load condition of the power grid transmission line.Currently,half wavelength lines(HWLL)transmission has been studied as an alternative solution for ultra long distance power transmission.Therefore,this article proposes an evaluation model for synchronous line loss based on the HWLL transmission line.Firstly,this article calculates and analyzes the voltage and current amplitude distribution along the line through phasor diagrams.Secondly,an algebraic expression for the synchronous line loss of HWLL transmission lines was proposed for economic evaluation of HWLL.Finally,simulation experiments show that the calculated values of the model proposed in this article have high consistency and fit with the actual line losses.Therefore,the application of the model proposed in this article can clearly understand its operating status under different load conditions.Meanwhile,this study provides important reference for the operation and planning of the power system,which helps to improve the efficiency and sustainability of the system.

关 键 词：同期线损 HWLL 电压电流分布 相量图 

分 类 号：TP202[自动化与计算机技术—检测技术与自动化装置]