应用序优化理论的快速切负荷机组布点方案  

An Ordinal Optimization Based Locating Scheme of Fast Cut Back Thermal Power Units

作　　者：卢恩[1] 宁健[2] 刘皓明[2] 刘明波[1] 侯云鹤[3] 

机构地区：[1]华南理工大学电力学院,广东省广州市510640 [2]河海大学能源与电气学院,江苏省南京市211100 [3]香港大学电机电子工程系

出　　处：《电网技术》2014年第5期1216-1222,共7页Power System Technology

基　　金：广东电网公司科技项目(K-GD2011-553)的项目资助

摘　　要：具备快速切负荷(fast cut back,FCB)功能的火电机组能在外部电网发生故障时带厂用电运行,在故障消除之后迅速对外供电,是一种性能优异的黑启动电源。分析了FCB机组对电网恢复的影响,以电网机组恢复时间最短为目标,考虑机组启动时间、启动功率、线路充电时间等约束条件,建立了FCB机组优化布点方案模型。在满足工程需要的前提下提高计算效率,引入序优化理论,确保以足够高的概率得到足够好的FCB机组的布点方案。通过经典IEEE-118节点算例和某实际系统算例验证了模型和算法的有效性。算例结果表明,合理的FCB机组布点方案能够减少系统恢复时间。The thermal power generation units possessing the function of fast cut back （FCB） that they can serve for auxiliary power consumption during external faults in power grid and fast supply power after external faults cleared, so they are excellent power source for black start. The influences of FCB units on power grid restoration are analyzed, and taking the shortest restoration time of grid units as the objective and the startup time, starting power, energizing time of transmission lines as constraints, a model of optimal locating scheme for FCB units is established. To improve the computing efficiency, the ordinal optimization is led in to ensure obtaining good enough locating scheme for FCB units with as high as enough probability. The effectiveness of the proposed model and algorithm is validated by simulation results of IEEE 118-bus system and a certain actual power grid. Simulation results show that reasonable locating scheme of FCB units can speed up the restoration of power grid.

关 键 词：系统恢复 快速切负荷机组 布点 序优化 

分 类 号：TM721[电气工程—电力系统及自动化]