Consensus-Based Distributed Coordination Control of Hybrid AC/DC Microgrids

作     者：Yoo, Hyeong-Jun Thai-Thanh Nguyen Kim, Hak-Man 

作者机构：Incheon Natl Univ Dept Elect Engn Incheon 406772 South Korea Incheon Natl Univ Res Inst Northeast Asian Super Grid Incheon 406772 South Korea 

出 版 物：《IEEE TRANSACTIONS ON SUSTAINABLE ENERGY》 (IEEE可持续能源汇刊)

年 卷 期：2020年第11卷第2期

页      面：629-639页

核心收录：

学科分类：0820[工学-石油与天然气工程] 0808[工学-电气工程] 08[工学] 

基　　金：Korea Institute of Energy Technology Evaluation and Planning Ministry of Trade, Industry, and Energy of the Republic of Korea 

主　　题：Microgrids Hybrid power systems Reactive power Voltage control Consensus algorithm Frequency control Power quality Microgrid (MG) hybrid ac dc microgrid consensus control distributed control strategy power sharing reactive power sharing current sharing voltage regulation 

摘      要：The controller of the interlinking converter (ILC) in a hybrid ac/dc microgrid (MG) system plays an important role of maintaining power sharing between ac and dc MG systems. The coordination control between the ILC controllers and the secondary controllers in each MG should be considered to maintain proper power sharing among two MGs and improve power qualities of hybrid MG system. This paper proposes a distributed coordination control strategy for the hybrid ac/dc MG. The proposed control strategy not only regulates accurate dc current and reactive power sharing among DGs in ac and dc MGs, but also maintains power sharing among two MGs and restores the ac frequency and dc voltage to their nominal values. The hierarchical control of the ILC, comprised of primary and secondary control layer, is proposed to regulate power sharing between ac and dc MGs. The proposed control strategy is based on distributed consensus algorithm, which is developed to achieve the accurate reactive power sharing and dc current sharing in ac and dc MGs. The feasibility of the proposed control strategy is validated by the laboratory prototype hybrid MG system. A comparison study on the proposed control and the conventional control is presented to show the effective of the proposed control strategy.