简历详情

A quadratic voltage model for optimal power flow of a class of meshed networks

期刊: International Journal of Electrical Power & Energy Systems  2021
作者: Yanjun Li,Ji Xiang,Yuwei Chen
DOI:10.1016/j.ijepes.2021.107047

Load Flow optimization of Meshed Networks: A Convex Relaxation and An Illustrative Example

期刊: 2019 Chinese Control Conference (CCC)  2019
作者: Yanjun Li,Ji Xiang,Yuwei Chen
DOI:10.23919/chicc.2019.8866505

An Optimal Power Flow Formulation with SOCP Relaxation in Radial Network*

期刊: 2018 IEEE 14th International Conference on Control and Automation (ICCA)  2018
作者: Xiang Shen,Ji Xiang,Yanjun Li,Yuwei Chen
DOI:10.1109/icca.2018.8444210

SOCP Relaxations of Optimal Power Flow Problem Considering Current Margins in Radial Networks

Optimal power flow (OPF) is a non-linear and non-convex problem that seeks the optimization of a power system operation point to minimize the total generation costs or transmission losses. This study proposes an OPF model considering current margins in radial networks. The objective function of this OPF model has an additional term of current margins of the line besides the traditional transmission losses and generations costs, which contributes to thermal stability margins of power systems. The model is a reformulated bus injection model with clear physical meanings. Second order cone program (SOCP) relaxations for the proposed OPF are made, followed by the over-satisfaction condition guaranteeing the exactness of the SOCP relaxations. A simple 6-node case and several IEEE benchmark systems are studied to illustrate the efficiency of the developed results.

期刊: Energies  2018
作者: Yanjun Li,Ji Xiang,Yuwei Chen
DOI:10.3390/en11113164