县级供电系统智能电网平台支撑技术研究

县级电网由城网和农网构成.城网供电负荷集中,供电环境较好,事故率低,易维护.农网线路走廊多以山区为主,运行环境差,受自然环境的影响较大,事故率高,排查困难,且供电距离远,负荷点分布零散,线损大,电能质量较差,结构薄弱.为了进一步优化各级电网规划,促进各电压等级电网协调发展、送端电网和受端电网协调发展、城市电网与农村电网协调发展、一次系统和二次系统协调发展,着力研究以通信信息平台为支撑,以智能控制为手段,实现电力流、信息流、业务流的高度一体化融合,从而为实现坚强可靠、经济高效、清洁环保、透明开放、友好互动的现代电网奠定良好的基础,以提高县级电网运营的安全性、可靠性和经济性,降低用户用电成本,提高能源利用效率,实现节能减排.

Study on Plattorm Support Technology of Intelligent Grid for County-level Power Supply System

The county-level grid is made up of by the urban network and rural network.The power supply load of the urban network is concentrahed with better environment,low accident rate and easy maintenance. The rural network lines are mainly scattered in the mountainous areas,so they have poor operation environment and high accident rate.In addition,the rural network is greatly affected by natural environment and has difficulty in croubleshooting.As the power supply distance of the rural network is long and the load points are scattered,the line loss is great and the qualtity of the electric energy is poor.To optimize grid planning at different levels and promote coordinahed development,this paper studies integration of power flow,intormation flow and business flow with the communication as the support,and intelligent control as a means,so as to lay a solid foundution for a modern grid that is strong and reliable,economical and efficient,clean and environment friendly,transparent and open and harmoniously interactive.The purposeis to improve the security of operation and the reliability and economy of the county-level power grid, improve the efficiency of energy use and achieve energy saving and emission reduction.