TY - GEN
T1 - Battery Enhanced PV Microinverter with Ancillary Service Capabilities
AU - Muller, Nicolas
AU - Gutierrez, Miguel
AU - Reyes-Chamorro, Lorenzo
AU - Fuhrhop, Carlos
AU - Lopez-Caiza, Diana
AU - Rojas, Christian A.
N1 - Publisher Copyright:
© 2023 IEEE.
PY - 2023
Y1 - 2023
N2 - Worldwide agreements towards mitigating the climate change effects have driven a growing penetration of renewable energy sources (RES) into electricity grids and the increasing decommission of large-scale fossil-fuel based generating units. Nevertheless, these RES additions are usually characterized by presenting low-inertia and high variability and intermittency, while the receding fossil-fuel plants were capable of providing inertia and grid support in terms of ancillary services. Ancillary service markets are usually dominated by large- and medium-scale systems, including renewable power plants, however excluding small-scale PV systems, typically installed at the distribution-grid level. This work presents a two-stage PV microinverter, where the dc-link has been replaced by a battery, allowing the microinverter to offer ancillary services. The proposal also takes advantage of the lower power rating requirements of partial power converters (PPCs), replacing the conventional full-power step-up dc-dc converter by a step-up PPC. Simulation results of the system under nominal operation (performing maximum power point tracking) and providing ancillary services are presented. The results show the capability of PV microinverters to participate in the ancillary-service market, due to the potential of residential power generation systems.
AB - Worldwide agreements towards mitigating the climate change effects have driven a growing penetration of renewable energy sources (RES) into electricity grids and the increasing decommission of large-scale fossil-fuel based generating units. Nevertheless, these RES additions are usually characterized by presenting low-inertia and high variability and intermittency, while the receding fossil-fuel plants were capable of providing inertia and grid support in terms of ancillary services. Ancillary service markets are usually dominated by large- and medium-scale systems, including renewable power plants, however excluding small-scale PV systems, typically installed at the distribution-grid level. This work presents a two-stage PV microinverter, where the dc-link has been replaced by a battery, allowing the microinverter to offer ancillary services. The proposal also takes advantage of the lower power rating requirements of partial power converters (PPCs), replacing the conventional full-power step-up dc-dc converter by a step-up PPC. Simulation results of the system under nominal operation (performing maximum power point tracking) and providing ancillary services are presented. The results show the capability of PV microinverters to participate in the ancillary-service market, due to the potential of residential power generation systems.
UR - http://www.scopus.com/inward/record.url?scp=85185869593&partnerID=8YFLogxK
U2 - 10.1109/SPEC56436.2023.10408711
DO - 10.1109/SPEC56436.2023.10408711
M3 - Conference contribution
AN - SCOPUS:85185869593
T3 - COBEP 2023 - 17th Brazilian Power Electronics Conference and SPEC 2023 - 8th IEEE Southern Power Electronics Conference, Proceedings
BT - COBEP 2023 - 17th Brazilian Power Electronics Conference and SPEC 2023 - 8th IEEE Southern Power Electronics Conference, Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 8th Southern Power Electronics Conference and the 17th Brazilian Power Electronics Conference, SPEC / COBEP 2023
Y2 - 26 November 2023 through 29 November 2023
ER -
