Unified optimal power flow model for AC/DC grids integrated with natural gas systems considering gas-supply uncertainties

作     者：Jiale FAN Xiaoyang TONG Junbo ZHAO 

作者机构：School of Electrical Engineering Southwest Jiaotong University Bradley Department of Electrical and Computer EngineeringVirginia Polytechnic Institute and State University 

出 版 物：《Journal of Modern Power Systems and Clean Energy》 (现代电力系统与清洁能源学报（英文）)

年 卷 期：2018年第6卷第6期

页      面：1193-1203页

核心收录：

学科分类：080802[工学-电力系统及其自动化] 0808[工学-电气工程] 08[工学] 

主　　题：AC/DC optimal power flow(OPF) Natural gas system Benders decomposition Second-order cone programming 

摘      要：A unified optimal power flow(OPF) model for AC/DC grids integrated with natural gas systems is proposed for the real-time scheduling of power ***, the primary physical couplings underlying this coordinated system are modeled and investigated. In addition, the uncertainties of gas loads are considered when studying the role of gas supply for gas-fired units in power system operations. The nonlinear gas system constraints are converted to the second-order cone forms that allow for the use of the Benders decomposition techniques and the interior-point method to obtain the optimal solution. The numerical results of the modified IEEE 118-bus test system that integrates the Belgium 20-node natural gas system demonstrate the effectiveness of the proposed model. The effects of gas demand uncertainties on the optimal schedule of thermal generators are investigated as well.