南方电网技术2024，Vol.18Issue(11)：106-118,13.DOI:10.13648/j.cnki.issn1674-0629.2024.11.012
考虑风电消纳的电热联合系统优化调度模型
Optimization Dispatching Model of the Combined Heat and Power System Considering Wind Power Integration
摘要
Abstract
The combined heat and power system effectively integrates electricity and heat energy,providing significant advantages in energy utilization.To analyze the economic and energy-saving effects of combined heat and power dispatch,an optimization dispatch model is developed considering time-of-use electricity prices and load fluctuations,which includes wind farm,energy hub,heat pump,and heat storage tank.The optimization objective is to minimize daily operating costs while considering practical constraints such as steady-state combined electrical and thermal power flow,dynamic characteristics of energy storage device,and pipe temperature drop equations.To enhance optimization efficiency,equation linearization and piecewise McCormick convex envelope technique are utilized,transforming the original non-convex optimization problem into a mixed integer quadratic programming(MIQP)problem.The proposed model's validity is verified through case studies,comparing the impact of wind-to-heat conversion and heat transfer loss on daily operating costs and wind curtailment in four scenarios.The optimal connection node for integrating the wind farm into the heating network was also identified.The results demonstrate the system's capability to convert unstable wind energy into stable heat energy,thereby enhancing wind energy integration capacity and improving overall economic performance.关键词
电热联合调度/混合整数二次规划/风电消纳/能源集线器/储能设备Key words
combined heat and power dispatch/mixed integer quadratic programming/wind power consumption/energy hub/energy storage device分类
信息技术与安全科学引用本文复制引用
徐小圣,徐昌睿,李梦诗,季天瑶..考虑风电消纳的电热联合系统优化调度模型[J].南方电网技术,2024,18(11):106-118,13.基金项目
国家自然科学基金重点项目(51437006). Supported by the Key Project of the National Natural Science Foundation of China(51437006). （51437006）
