动态确定输电线路输送容量

开发出一种利用实际气象条件和对线路参数进行实时监测来动态确定线路输送容量的监测系统，它由多个装设在耐张输电线路杆塔上的数据采集终端和设在调度中心的一个监控管理平台构成，通过公用移动通信网分组无线电业务（GPRS）/全球移动通信系统（GSM）来完成数据采集终端与监控管理平台之间的数据传输。监控管理平台通过以太网同监控与数据采集（SCADA）系统接口实现数据交换，实现系统与调度系统软件的结合，利用专家系统对输电线路的状态进行预警分析。在硬件和软件2个方面采取相应的措施，解决了抗干扰问题。建议以电力系统安全运行的监测与稳控技术为该系统提高输电线容量提供安全保障。

Modeling on Maintenance Scheduling of Transmission Lines

A dynamic line rating (DLR) system that can evaluate transmission capacity dynamically by measuring the actual weather condition and monitoring the on-line parameters of overhead lines is developed.The system is composed of sampling terminals installed on the dead-end configuration of a line and a control instrument equipped in the dispatching center.The data between the sampling terminals and the control instrument are transmitted through GPRS/GSM.Through Ethernet,the control instrument exchanges data with SCADA interface in order to integrate the DLR and SCADA systems.The state of the transmission lines is analyzed with an expert system.The anti-interference of high voltage is solved by improving the software and hardware which are used in the system.It is proposed that measuring and reliable control technology used in the power system be used to improve the transmission capacity of the lines for system security.