考虑双边交易的电力系统可用输电容量研究  

Available transfer capability determination considering bilateral power exchange

作　　者：文田[1] 杜松怀[1] 苏娟[1] 

机构地区：[1]中国农业大学信息与电气工程学院,北京100083

出　　处：《农业工程学报》2013年第A01期161-166,共6页Transactions of the Chinese Society of Agricultural Engineering

基　　金：国家自然科学基金(51177165)

摘　　要：可再生能源发电并网与电力市场化运行是未来电力行业的发展趋势。如何在电力市场运行机制下,准确、及时地计算电力系统的可用传输容量(简称ATC),是电力调度和交易中心需要解决的技术难题之一。该文以双边交易模式下的ATC计算模型为基础,将含风电机组的潮流模型、发电机容量、节点电压以及热稳定极限等作为新的约束条件,建立了考虑风电机组并网的电力系统ATC计算模型及其求解方法。仿真结果表明:新成交的双边交易对电力系统的ATC有较大影响,电力调度和交易中心必须根据更新的ATC值,及时调整电力交易的对象和容量,以满足电力市场稳定和经济运行的技术要求。Renewable energy interconnection and electricity market operation is the development trend of electric power industry. One of the technological problems of power dispatch and exchange center is how to calculate the available transmission capability （ATC） accurately and timely in the power market. An ATC calculation model and its solution method, considering wind generator in bilateral power market, was proposed in this paper. The power flow model with wind generators, generator capacity, node voltage, and thermal stability limits were introduced to the constraints of the proposed ATC model. According to the characters of bilateral power market, the computational steps of ATC were also described. The Simulation results of 19-buses power network showed that the new bilateral trade in power market had significant influence on ATC, the electric power system dispatcher must update ATC on time, and adjust market transaction according to the new ATC.

关 键 词：电力系统 风电机组 模型 可用输电容量 双边交易模式 

分 类 号：TM77[电气工程—电力系统及自动化]