The Design of Power System Stability Controller Based on the PCH Theory and Improved Genetic Algorithm

2017 2nd Asia Conference on Power and Electrical Engineering

能源学;电工学

Liu, Zhijian^1 ; Yin, Donghui^1 ; Yan, Jun^1

Electrical Engineering Academy, Kunming University of Science and Technology, Kunming, China^1

关键词: ITS applications;    Low frequency oscillations;    Model of systems;    Non-linear stabilities;    Port-controlled hamilton;    Power system stability;    Safety and stabilities;    Simulation model;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/199/1/012136/pdf
DOI  :  10.1088/1757-899X/199/1/012136

来源: IOP

【 摘 要 】

Low frequency oscillation is still frequently happened in the power system and it affects the safety and stability of power system directly. With the continuously expending of the interconnection scale of power grid, the risk of low frequency oscillation becomes more and more noticeable. Firstly, the basic theory of port-controlled Hamilton (PCH) and its application is analyzed. Secondly, based on the PCH theory and the dynamic model of system, from the viewpoint of energy, the nonlinear stability controller of power system is designed. By the improved genetic algorithm, the parameters of the PCH model are optimized. Finally, a simulation model with PCH is built to vary the effectiveness of the method proposed in this paper.