TY - GEN
T1 - Prevention of output suppression through heat pump water heaters for high-penetration residential PV systems
AU - Miyamoto, Yusuke
AU - Hayashi, Yasuhiro
PY - 2013/1/1
Y1 - 2013/1/1
N2 - There is a danger of output suppression of high-penetration residential PV systems due to voltage increase. It is necessary to install new technology to prevent the occurrence of such phenomenon. Therefore, we focused our attention on heat pump water heaters (HPWHs). HPWHs are usually used to heat water during night time because electricity prices are cheaper than during the daytime for the load leveling in Japan. So they can be used as a countermeasure without additional cost if they are operated during the daytime. However, HPWHs do not have sufficient capacity to absorb inverse energy at each residence. Thus HPWH operation must be optimized to minimize output suppression loss. In this research, we selected three typical sunny days in spring, autumn and winter. The optimal HPWH operation was calculated by numerical simulation.
AB - There is a danger of output suppression of high-penetration residential PV systems due to voltage increase. It is necessary to install new technology to prevent the occurrence of such phenomenon. Therefore, we focused our attention on heat pump water heaters (HPWHs). HPWHs are usually used to heat water during night time because electricity prices are cheaper than during the daytime for the load leveling in Japan. So they can be used as a countermeasure without additional cost if they are operated during the daytime. However, HPWHs do not have sufficient capacity to absorb inverse energy at each residence. Thus HPWH operation must be optimized to minimize output suppression loss. In this research, we selected three typical sunny days in spring, autumn and winter. The optimal HPWH operation was calculated by numerical simulation.
KW - Grid-interconnection
KW - Heat pump water heater
KW - Inverter
KW - Photovoltaic power systems
KW - Voltage control
UR - http://www.scopus.com/inward/record.url?scp=84896463255&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84896463255&partnerID=8YFLogxK
U2 - 10.1109/PVSC.2013.6744475
DO - 10.1109/PVSC.2013.6744475
M3 - Conference contribution
AN - SCOPUS:84896463255
SN - 9781479932993
T3 - Conference Record of the IEEE Photovoltaic Specialists Conference
SP - 1715
EP - 1720
BT - 39th IEEE Photovoltaic Specialists Conference, PVSC 2013
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 39th IEEE Photovoltaic Specialists Conference, PVSC 2013
Y2 - 16 June 2013 through 21 June 2013
ER -
