基于OPF的互联电网AGC优化模型  

AGC optimal model based on OPF technology for interconnected power grid

作　　者：颜伟[1] 王聪[1] 毛艳丽 张荣荣[1] 赵霞[1] 余娟[1] 

机构地区：[1]重庆大学输配电装备及系统安全与新技术国家重点实验室,重庆400044 [2]国家电网温州供电公司,浙江温州325000

出　　处：《电力系统保护与控制》2015年第23期35-40,共6页Power System Protection and Control

基　　金：国家自然科学基金项目(51307186)~~

摘　　要：提出了一种基于OPF的互联电网AGC优化模型。该模型在传统OPF模型的潮流安全约束基础上,考虑了发电机组和负荷的静态频率特性,增加了机组的爬坡速率约束、频率质量约束和互联断面的传输有功约束,同时以AGC机组的辅助调节费用最小为目标函数。所建模型扩展了OPF模型的应用范围,使其由发电计划的决策方法扩展为实时发电控制的决策方法,并避免了传统AGC策略的区域偏差和潮流安全约束的越限风险。采用预测-校正原对偶内点法求解所建模型,并通过对IEEE 39节点修正系统的仿真分析,验证了新模型的正确性和有效性。This paper presents an optimal model for AGC using OPF technology for interconnected grid. Based on traditional OPF model, the model takes into account security constraints, generator and load static frequency regulation characteristics. Generator unit ramp rate constraint, frequency constraint and transmission interface power constraints are added. Meanwhile the auxiliary adjustment expense of AGC units is used as objective function. The new model expands the application range of OPF model, makes it extended to the real-time electricity decision method from power generation plan control decision method, and avoids the regional deviation result from traditional AGC strategy and the risk of security constraints limit. The new model is tested on modified IEEE-39 bus distribution system and solved by predictor-corrector primal-dual interior point method, correctness and validity of the new model are validated.

关 键 词：AGC 二次调频 频率特性 断面传输有功功率约束 最优潮流 

分 类 号：TM61[电气工程—电力系统及自动化] TM727