TY - GEN
T1 - Power Smoothing Control Using Spline Function in Photovoltaic Generation System
AU - Takahashi, Akiko
AU - Kajitani, Tatsuya
AU - Funabiki, Shigeyuki
N1 - Funding Information:
This work is supported by Okayama Foundation for Science and Technology.
Publisher Copyright:
© 2019 IEEE.
Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2019/2
Y1 - 2019/2
N2 - This paper proposes a novel power smoothing control method using a spline function for a photovoltaic generation system. The spline function is sequentially created using the preceding average values of PV power. The command value of power smoothing control is determined by extrapolating the obtained spline function, which represents the long-term fluctuation components of PV power. The smoothing effect is evaluated by calculating the power in the targeted frequency band of the power flowing backward to the power grid. The proposed method is verified with 153 days of data measured in the PV system rated 1.75 MW. As a result, the smoothing effect was 51.8% with the proposed method in the case that the parameter of section time was 300 s. The rated capacity of energy storage system was 106 kWh. Then, it was indicated that the smoothing effect was increased and the short-term fluctuation of power flowing back to the power grid was reduced by setting the section time longer. Finally, the proposed method was compared with the power smoothing control using simple MA.
AB - This paper proposes a novel power smoothing control method using a spline function for a photovoltaic generation system. The spline function is sequentially created using the preceding average values of PV power. The command value of power smoothing control is determined by extrapolating the obtained spline function, which represents the long-term fluctuation components of PV power. The smoothing effect is evaluated by calculating the power in the targeted frequency band of the power flowing backward to the power grid. The proposed method is verified with 153 days of data measured in the PV system rated 1.75 MW. As a result, the smoothing effect was 51.8% with the proposed method in the case that the parameter of section time was 300 s. The rated capacity of energy storage system was 106 kWh. Then, it was indicated that the smoothing effect was increased and the short-term fluctuation of power flowing back to the power grid was reduced by setting the section time longer. Finally, the proposed method was compared with the power smoothing control using simple MA.
KW - energy storage
KW - filter effect
KW - photovoltaic generation
KW - power smoothing control
KW - spline function
UR - http://www.scopus.com/inward/record.url?scp=85070389179&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85070389179&partnerID=8YFLogxK
U2 - 10.1109/DEAS.2019.8758737
DO - 10.1109/DEAS.2019.8758737
M3 - Conference contribution
AN - SCOPUS:85070389179
T3 - 2019 IEEE Decentralized Energy Access Solutions Workshop, DEAS 2019
BT - 2019 IEEE Decentralized Energy Access Solutions Workshop, DEAS 2019
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2019 IEEE Decentralized Energy Access Solutions Workshop, DEAS 2019
Y2 - 5 February 2019 through 7 February 2019
ER -
