TY - GEN
T1 - Collaborative volt-VAR control using grid-connected PV inverters
AU - Miranbeigi, Mohammadreza
AU - Kandula, Prasad
AU - Kandasamy, Karthik
AU - Divan, Deepak
N1 - Publisher Copyright:
© 2019 IEEE.
PY - 2019/6
Y1 - 2019/6
N2 - This paper proposes a novel volt-VAR control (VVC) strategy for grid connected PV inverters that can enable a dramatic increase in the level of PV penetration on distribution feeders. The volatility of PV resources, coupled with their dispersed location on distribution feeders, can cause wide swings in voltage along the feeder - often outside the required ANSI band. Conventional PV inverters initially started out operating purely in MPPT mode. More recently inverters have been used for grid support using centrally dispatched VARs. This generally provides unsatisfactory compensation as it does not take into account volatility, system impedances and local load variations. Another approach has been through the use of voltage-VAR droop profiles. Maintaining a tight voltage band can cause interactions between inverters, while a broader droop band causes imprecise regulation and provides poor controllability. This paper proposes a novel new 'collaborative control' strategy for realizing VVC for grid-connected inverters, which works purely on local information, where even adjacent inverters do not 'fight' each other, and where the system can provide fast and precise control of VARs and voltage.
AB - This paper proposes a novel volt-VAR control (VVC) strategy for grid connected PV inverters that can enable a dramatic increase in the level of PV penetration on distribution feeders. The volatility of PV resources, coupled with their dispersed location on distribution feeders, can cause wide swings in voltage along the feeder - often outside the required ANSI band. Conventional PV inverters initially started out operating purely in MPPT mode. More recently inverters have been used for grid support using centrally dispatched VARs. This generally provides unsatisfactory compensation as it does not take into account volatility, system impedances and local load variations. Another approach has been through the use of voltage-VAR droop profiles. Maintaining a tight voltage band can cause interactions between inverters, while a broader droop band causes imprecise regulation and provides poor controllability. This paper proposes a novel new 'collaborative control' strategy for realizing VVC for grid-connected inverters, which works purely on local information, where even adjacent inverters do not 'fight' each other, and where the system can provide fast and precise control of VARs and voltage.
KW - Grid-following
KW - Microgrid
KW - PV inverter
KW - Volt-var
KW - Voltage regulation
UR - http://www.scopus.com/inward/record.url?scp=85071903144&partnerID=8YFLogxK
U2 - 10.1109/PEDG.2019.8807468
DO - 10.1109/PEDG.2019.8807468
M3 - Conference contribution
AN - SCOPUS:85071903144
T3 - PEDG 2019 - 2019 IEEE 10th International Symposium on Power Electronics for Distributed Generation Systems
SP - 252
EP - 257
BT - PEDG 2019 - 2019 IEEE 10th International Symposium on Power Electronics for Distributed Generation Systems
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 10th IEEE International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2019
Y2 - 3 June 2019 through 6 June 2019
ER -