2026-04-16T14:32:47Zhttps://ebiltegia.mondragon.edu/oai/request

oai:ebiltegia.mondragon.edu:20.500.11984/18652024-02-29T15:27:06Zcom_20.500.11984_473col_20.500.11984_478

00925njm 22002777a 4500 dc Unamuno, Eneko author Bilbao Ortega, Aitor author 2020 It is getting more common every day to install inverters that o er several grid support services in parallel. As these services are provided, a simultaneous need arises to know the combined limit of the inverter for those services. In the present paper, operational limits are addressed based on a utility scale for a real inverter scenario with an energy storage system (ESS) (1.5 MW). The paper begins by explaining how active and reactive power limits are calculated, illustrating the PQ maps depending on the converter rated current and voltage. Then, the ellect of the negative sequence injection, the phase shift of compensated harmonics and the transformer de-rating are introduced step-by-step. Finally, inverter limits for active filter applications are summarized, to finally estimate active and reactive power limits along with the harmonic current injection for some example cases. The results show that while the phase shift of the injected negative sequence has a significant ellect in the available inverter current, this is not the case for the phase shift of injected harmonics. However, the amplitude of the injected negative sequence and harmonics will directly impact the power capabilities of the inverter and therefore, depending on the grid-side voltage, it might be interesting to design an output transformer with a different de-rating factor to increase the power capabilities. 1996-1073 https://doi.org/10.3390/en13174314 https://hdl.handle.net/20.500.11984/1865 ESS grid integration power quality STATCOM active power filter Power Capability Boundaries for an Inverter Providing Multiple Grid Support Services