TY - GEN
T1 - Modeling of marginal cost for pv inverter ancillary services considering inverter aging under transactive energy framework
AU - Liu, Yunting
AU - Kritprajun, Paychuda
AU - Tolbert, Leon M.
AU - Dong, Jiaojiao
AU - Zhu, Lin
AU - Hambrick, Joshua C.
AU - Schneider, Kevin
AU - Bhattarai, Bishnu P.
N1 - Funding Information:
This work was primarily supported by U.S. Department of Energy Grid Modernization Lab Consortium. This work also made use of Engineering Research Center shared facilities supported by the Engineering Research Center Program of the National Science Foundation and the Department of Energy under NSF Award Number [EEC-1041877] and the CURENT Industry Partnership Program.
Publisher Copyright:
© 2020 IEEE.
PY - 2020/8/2
Y1 - 2020/8/2
N2 - PV inverters can provide ancillary services while simultaneously providing active power. A transactive energy system (TES) incentivizes a PV inverter to provide ancillary services and compensates for the cost of additional power losses due to additional reactive power production. However, providing ancillary services can shorten the lifetime of the PV inverter since additional reactive power increases the thermal stress of it. This paper models the lifetime shortening effect of a PV inverter when providing ancillary services. Based on the lifetime estimation, an improved marginal cost curve of reactive power generation for the PV inverter is proposed. The improved marginal cost considers the normalized lifetime (NLT) of the PV inverter given the active power, reactive power, and ambient temperature. The proposed NLT algorithm is validated by a simulation case study.
AB - PV inverters can provide ancillary services while simultaneously providing active power. A transactive energy system (TES) incentivizes a PV inverter to provide ancillary services and compensates for the cost of additional power losses due to additional reactive power production. However, providing ancillary services can shorten the lifetime of the PV inverter since additional reactive power increases the thermal stress of it. This paper models the lifetime shortening effect of a PV inverter when providing ancillary services. Based on the lifetime estimation, an improved marginal cost curve of reactive power generation for the PV inverter is proposed. The improved marginal cost considers the normalized lifetime (NLT) of the PV inverter given the active power, reactive power, and ambient temperature. The proposed NLT algorithm is validated by a simulation case study.
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U2 - 10.1109/PESGM41954.2020.9281700
DO - 10.1109/PESGM41954.2020.9281700
M3 - Conference contribution
AN - SCOPUS:85099119046
T3 - IEEE Power and Energy Society General Meeting
BT - 2020 IEEE Power and Energy Society General Meeting, PESGM 2020
PB - IEEE Computer Society
T2 - 2020 IEEE Power and Energy Society General Meeting, PESGM 2020
Y2 - 2 August 2020 through 6 August 2020
ER -