TY - GEN
T1 - Optimal Responses of Home Energy Management Systems to Aggregator and Utility Requirements
AU - Dao, Van Tu
AU - Ishii, Hideo
AU - Hayashi, Yasuhiro
AU - Takasawa, Yuta
AU - Murakami, Kohei
N1 - Funding Information:
This paper is based on results obtained from a project commissioned by the New Energy and Industrial Technology Development Organization (NEDO).
Publisher Copyright:
© 2018 IEEE.
PY - 2018/9/18
Y1 - 2018/9/18
N2 - As the growing integration of rooftop solar and batteries in the residential area, home energy usage becomes more flexible and solar-battery systems can offer promising benefits to households. This paper narrates a research work of how home energy management systems maximize profits from buying electricity at a fixed price from utility and selling surplus energy to an aggregator. Appropriate optimization problems are formulated with technical constraints of household devices and from connection requirements including a volt-watt function installed in the inverter of the rooftop solar-battery system. On the day of operation, the energy plan, which has been optimally committed to be sold to an aggregator since the day before, is considered for determining optimal HEMS responses under the actual real-time condition. Simulation results of a Japanese low-voltage system show that a consideration of volt-watt functions when performing optimization helps reduce wasted energy due to possible active power curtailments and improve home profits.
AB - As the growing integration of rooftop solar and batteries in the residential area, home energy usage becomes more flexible and solar-battery systems can offer promising benefits to households. This paper narrates a research work of how home energy management systems maximize profits from buying electricity at a fixed price from utility and selling surplus energy to an aggregator. Appropriate optimization problems are formulated with technical constraints of household devices and from connection requirements including a volt-watt function installed in the inverter of the rooftop solar-battery system. On the day of operation, the energy plan, which has been optimally committed to be sold to an aggregator since the day before, is considered for determining optimal HEMS responses under the actual real-time condition. Simulation results of a Japanese low-voltage system show that a consideration of volt-watt functions when performing optimization helps reduce wasted energy due to possible active power curtailments and improve home profits.
KW - Active power curtailment
KW - aggregator
KW - battery
KW - home energy management system
KW - rooftop solar
KW - smart inverter functions
UR - http://www.scopus.com/inward/record.url?scp=85055533677&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85055533677&partnerID=8YFLogxK
U2 - 10.1109/ISGT-Asia.2018.8467883
DO - 10.1109/ISGT-Asia.2018.8467883
M3 - Conference contribution
AN - SCOPUS:85055533677
T3 - International Conference on Innovative Smart Grid Technologies, ISGT Asia 2018
SP - 616
EP - 621
BT - International Conference on Innovative Smart Grid Technologies, ISGT Asia 2018
A2 - Hao, Quan
A2 - Sharma, Anurag
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2018 International Conference on Innovative Smart Grid Technologies, ISGT Asia 2018
Y2 - 22 May 2018 through 25 May 2018
ER -