Optimal power flow calculation for power system with UPFC considering load rate equalization

3rd International Conference on Advances in Energy, Environment and Chemical Engineering

能源学;生态环境科学;化学工业

Liu, Jiankun^1 ; Chen, Jing^1 ; Zhang, Qingsong^2

State Grid Jiangsu Electric Power Company, Electric Power Research Institute, Jiangsu Province, Nanjing

211103, China^1

College of Energy and Electrical Engineering, Hohai University, Nanjing

211100, China^2

关键词: Electrical quantities;    Interior-point method;    Optimal power flow calculation;    Optimal power flow model;    Power supply capacity;    Stability and reliabilities;    Steady-state modeling;    Unified power flow controllers;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/69/1/012152/pdf
DOI  :  10.1088/1755-1315/69/1/012152

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Unified power flow controller (UPFC) device can change system electrical quantity (such as voltage, impedance, phase angle, etc.) rapidly and flexibly under the premise of maintain security, stability and reliability of power system, thus can improve the transmission power and transmission line utilization, so as to enhance the power supply capacity of the power grid. Based on a thorough study of the steady-state model of UPFC, taking load rate equalization as objective function, the optimal power flow model is established with UPFC, and simplified interior point method is used to solve it. Finally, optimal power flow of 24 continuous sections actual data is calculated on a typical day of Nanjing network. The results show that the optimal power flow calculation with UPFC can optimize the load rate equalization on the basis of eliminating line overload, improving the voltage level of local power network.