An integrated and reconfigurable hybrid AC/DC microgrid architecture with autonomous power flow control for nearly/net zero energy buildings

Yu，Hang; Niu，Songyan; Zhang，Yumeng; Jian，Linni

2020-04-01

10.1016/j.apenergy.2020.114610

APPLIED ENERGY   影响因子和分区

0306-2619

1872-9118

With the ever-increasing of population and economy worldwide, buildings have become major energy consumers and greenhouse gas (GHG) emitters. The hybrid AC/DC microgrid is a promising alternative for existing power distribution systems to achieve the goal of nearly/net zero energy buildings (nZEBs). However, the increasing demand for compact structure, seamless integration of distributed generators (DGs) and loads, as well as more control flexibility of hybrid microgrids cannot be adequately satisfied by conventional grid architectures. In view of this, an integrated and reconfigurable hybrid AC/DC microgrid architecture with its hierarchical control strategy is proposed in this paper. Firstly, a novel interlinking converter named smart interlinking unit (SIU) is presented, which can provide multiple AC/DC interfaces and diverse operation modes with various control functionalities. Secondly, the SIU-based hybrid microgrid architecture and its hierarchical control structure are established. The dedicated interfaces and cluster controllers for electric vehicles (EVs) facilitate the implementation of centralized vehicle-to-grid (V2G) service. Thirdly, a hierarchical control strategy of SIU, which involves local control in primary control level and power flow control in secondary control level, is introduced to realize coordinated operation of microgrid. The model of the proposed hybrid microgrid architecture is built, and the simulation results demonstrate that the microgrid architecture and hierarchical control strategy can achieve a reliable and coordinated system operation under various kinds of scenarios. Additionally, the mutual power support between AC and DC sub-grids is realized with increased utilization and local consumption of renewable energy resources (RESs).

Hierarchical control structure Hybrid AC/DC microgrid architecture Local control Power flow control Smart interlinking unit (SIU)

EI ; SCI

英语

第一 ; 通讯

National Natural Science Foundation of China[61773195]

Energy & Fuels ; Engineering

Energy & Fuels ; Engineering, Chemical

WOS:000520402600004

Elsevier Ltd

20200708165097

Electric load flow ; Electric power transmission networks ; Flow control ; Greenhouse gases ; Microgrids ; Reconfigurable architectures ; Renewable energy resources ; Vehicle-to-grid ; Zero energy buildings

Air Pollution Sources:451.1 ; Energy Resources and Renewable Energy Issues:525.1 ; Electric Power Systems:706.1 ; Electric Power Transmission:706.1.1 ; Computer Systems and Equipment:722 ; Specific Variables Control:731.3

ENGINEERING

2-s2.0-85079208254

Scopus

Department of Electrical and Electronic Engineering,Southern University of Science and Technology,Shenzhen,518055,China

Yu，Hang,Niu，Songyan,Zhang，Yumeng,et al. An integrated and reconfigurable hybrid AC/DC microgrid architecture with autonomous power flow control for nearly/net zero energy buildings[J]. APPLIED ENERGY,2020,263.

Yu，Hang,Niu，Songyan,Zhang，Yumeng,&Jian，Linni.(2020).An integrated and reconfigurable hybrid AC/DC microgrid architecture with autonomous power flow control for nearly/net zero energy buildings.APPLIED ENERGY,263.

Yu，Hang,et al."An integrated and reconfigurable hybrid AC/DC microgrid architecture with autonomous power flow control for nearly/net zero energy buildings".APPLIED ENERGY 263(2020).