Economic Power Schedule and Transactive Energy through an Intelligent Centralized Energy Management System for a DC Residential Distribution System

Jingpeng Yue, Zhijian Hu, Chendan Li, Juan C. Vasquez and Josep M. Guerrero
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Jingpeng Yue: School of Electrical Engineering, Wuhan University, Wuhan 430047, China
Zhijian Hu: School of Electrical Engineering, Wuhan University, Wuhan 430047, China
Chendan Li: Department of Energy Technology, Aalborg University, Aalborg 9220, Denmark
Juan C. Vasquez: Department of Energy Technology, Aalborg University, Aalborg 9220, Denmark
Josep M. Guerrero: Department of Energy Technology, Aalborg University, Aalborg 9220, Denmark

Energies, 2017, vol. 10, issue 7, 1-14

Abstract: Direct current (DC) residential distribution systems (RDS) consisting of DC living homes will be a significant integral part of future green transmission. Meanwhile, the increasing number of distributed resources and intelligent devices will change the power flow between the main grid and the demand side. The utilization of distributed generation (DG) requires an economic operation, stability, and an environmentally friendly approach in the whole DC system. This paper not only presents an optimization schedule and transactive energy (TE) approach through a centralized energy management system (CEMS), but also a control approach to implement and ensure DG output voltages to various DC buses in a DC RDS. Based on data collection, prediction and a certain objectives, the expert system in a CEMS can work out the optimization schedule, after this, the voltage droop control for steady voltage is aligned with the command of the unit power schedule. In this work, a DC RDS is used as a case study to demonstrate the process, the RDS is associated with unit economic models, and a cost minimization objective is proposed that is to be achieved based on the real-time electrical price. The results show that the proposed framework and methods will help the targeted DC residential system to reduce the total cost and reach stability and efficiency.

Keywords: optimization schedule; transactive energy; direct current residential distributed system; living homes; direct current droop control; centralized energy management system; electrical price (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2017
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (12)

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