Study on Structure and Control Strategy of Hybrid AC / DC Power Grid

2018 5th International Conference on Advanced Composite Materials and Manufacturing Engineering

Liu, Haijun^1 ; Wang, Shiyou^2 ; Li, Xuejiao^2 ; Zhou, Zhe^1 ; Li, Weiguo^1

State Key Laboratory of Advanced Power Transmission Technology, Global Energy Interconnection Research Institute Co., Ltd, Changping District, Beijing

102211, China^1

School of Northeast Electric Power University, Jilin

132012, China^2

关键词: Development directions;    Distribution generation;    Hybrid AC/DC power grid;    Master slave control;    Operating condition;    Power electronic transformer;    Power transmission and distributions;    PSCAD/EMTDC simulations;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/394/4/042110/pdf
DOI  :  10.1088/1757-899X/394/4/042110

来源: IOP

【 摘 要 】

Hybrid AC/DC power grid is the development direction and inevitable choice of the future power transmission and distribution network along with the high proportion penetration of distribution generation (DG). The design principle of hybrid AC/DC power grid structure is studied and a novel hybrid AC/DC power grid network structure which combined power electronic transformer (PET) with traditional transformer was proposed to reach the goal of flexible regulation under stable operating conditions. The corresponding control strategy of the proposed grid was designed based on the master-slave control and peer-to-peer control. The correctness of the proposed hybrid AC/DC power grid and the rationality of the control strategies are verified according to the simulation under the PSCAD/EMTDC simulation environment.