基于日照辨识的输电线载流能力评估  

Current Capacity Estimation of Transmission Line Based on Sunshine Identify

作　　者：熊小伏[1] 丁咏竹[1] 谢嵩[2] 

机构地区：[1]重庆大学输配电装备及系统安全与新技术国家重点实验室,重庆400030 [2]重庆市电力公司,重庆400030

出　　处：《高压电器》2013年第4期32-36,共5页High Voltage Apparatus

基　　金：重庆大学输配电国家重点实验室资助项目(2007DA10512709202)~~

摘　　要：输电线路的输送能力将直接影响发电和用电水平,因此如何提高线路载流能力得到广泛关注。由于线路沿途进行日照条件测量成本高且可靠性难以保障,使得动态计算输电线载流能力的方法难以得到广泛应用。笔者提出通过利用在线温度信息和线路实时电流信息,辨识日照参数,获取线路载流量计算所需的日照参数,以实现线路实时载流能力的评估。仿真分析证明,该方法能有效地在线预测输电线最大载流能力,为充分利用线路输电能力、保障可靠供电提供参考依据。The line transmission current capacity will directly affect the level of power generation and electricity, so how to improve the line transmission current capacity should be widespread concern on. Because of the high cost of measurement and it is difficult to guarantee the reliability for sunshine which will be used to identify for calculation the transmission line current capacity ,makes the dynamic calculation of transmission line carrying capacity difficult to be wildly used. This paper proposes a method which take the line temperature and current as input and output of a dynamic system and the information will be used to identify the parameters of sunshine. The method proved effectively to predict the online maximum current carrying capacity and provided a reference in order to take full advantage of the line transmission capacity and to ensure the power supply reliability.

关 键 词：输电线 载流能力 温度监测 系统辨识 日照参数 

分 类 号：TM751[电气工程—电力系统及自动化]