中国电机工程学报2024，Vol.44Issue(7)：2578-2589,后插6,13.DOI:10.13334/j.0258-8013.pcsee.222796
计及调节资源AGC动态特性的离散-连续时间随机前瞻经济调度
Discrete-continuous-time Stochastic Look-ahead Economic Dispatch Model Considering the Dynamic Characteristics of AGC Provided by Regulating Resources
摘要
Abstract
With the increasing penetration of volatile renewables,more power regulation capacity is needed for the power system.To determine sufficient and reasonable regulation reserve,the coordination between economic dispatch and Automatic Generation Control(AGC)is indispensable.This paper proposes a discrete-continuous-time stochastic look-ahead economic dispatch model considering the dynamic characteristics of AGC provided by regulating resources,so as to make scheduling decisions that balance the energy balance and regulation requirements,achieve the optimal allocation of fast and slow resources,and enhance the dynamic regulation ability of the system.In the propose model,a discrete-time model is established to precisely characterize the dynamic characteristics of AGC regulating resources for current time period,and an approximated continuous-time model is used to formulate the AGC resources'characteristics for the look-ahead time period to reduce the complexity of the overall model.To further make the problem tractable,the charge and discharge complementary constraints of energy storage is relaxed by introducing appropriate penalty term in the objective function.Finally,the benders decomposition algorithm is adopted to solve the problem in parallel manner.The numerical tests are conducted in PJM 5-bus system and IEEE 118-bus system.The results show that the proposed model can effectively reduce the system frequency deviation compared with the traditional model.Compared with the model considering refined AGC dynamic constraints in the look-ahead period,the computation burden of proposed model is significantly reduced.关键词
随机前瞻经济调度/AGC动态特性/连续时间模型/Benders分解Key words
stochastic look-ahead economic dispatch/dynamic characteristics of AGC/continuous-time model/Benders decomposition分类
信息技术与安全科学引用本文复制引用
田野,李正烁,吴文传..计及调节资源AGC动态特性的离散-连续时间随机前瞻经济调度[J].中国电机工程学报,2024,44(7):2578-2589,后插6,13.基金项目
国家自然科学基金项目(52377107).Project Supported by National Natural Science Foundation of China(52377107). （52377107）
