目标可控的超前频率偏差系数确定方法设计  

Design of Object-controllable and Ahead Frequency Bias Coefficient Setting

作　　者：刘乐[1] 刘娆[1] 李卫东[1] 林伟[2] 徐兴伟[2] 

机构地区：[1]大连理工大学电气工程与应用电子技术系,辽宁省大连市116024 [2]东北电网有限公司,辽宁省沈阳市110006

出　　处：《电力系统自动化》2007年第5期40-45,共6页Automation of Electric Power Systems

基　　金：国家自然科学基金资助项目(50577002)~~

摘　　要：为实现自动发电控制(AGC)的目标可控性和超前控制,提出了一种应用多目标最优化技术和超短期负荷预报的频率偏差系数确定方法。应用解决多目标最优问题的评价函数法在该算法中引入控制因子,根据决策者的意图人为控制各目标的重要程度;在每个预报周期前运行此算法程序,利用超短期负荷预报的结果提前计算得到使系统运行更加满足某期望目标要求的各区频率偏差系数,形成目标可控的超前频率偏差系数确定方法。最后通过三区域互联电网数字仿真验证了该方法的有效性。In order to implement object-controllability and ahead control of automatic generation control （AGC）, a new method of frequency bias coefficient setting is proposed based on the multi-target optimum technology and super-short-term load forecasting （SSTLF）. In the algorithm, control factors are introduced by applying evaluation function methods. So it can control every object＇ s importance artificially according to the intention of decision-makers. Using the results of SSTLF and running this algorithmic program before every forecast period, each area can achieve object-controllable and ahead frequency bias coefficients are calculated to make the system reach the anticipant objectives better. Finally studies on a digital simulation model of three-area power system demonstrate the validity of the proposed algorithm.

关 键 词：自动发电控制 频率偏差系数 多目标最优化技术 超短期负荷预报 

分 类 号：TM76[电气工程—电力系统及自动化] TM744