The Dynamic Phasor Transform Applied to Simulation and Control of Grid-Connected Inverters

Autor(es)

Volpato, Alvaro A. ; Alberto, Luis F. C.

• Tipo de documento: Artigo Científico
• Fonte: JOURNAL OF CONTROL AUTOMATION AND ELECTRICAL SYSTEMS; v. 33, n. 6, p. 12-pg., 2022-07-28.

Resumo

Given the increasing penetration of inverter-based systems in macro and microgrids, reliable modelling of such inverters for studying their impact on system stability is paramount. This paper presents a mathematical foundation of Dynamic Phasors (DP) Transform, using differential equations and Fourier analysis results. By means of modelling and simulation of a particular inverter system, DP modelling is exemplified and an Equivalent Phasor Model is constructed. Using the simulation results, we discuss the shortcomings of Quasi-Static (QS) Modelling, adopted in the majority of modern Electric Power System (EPS) studies, and why it is not suitable for modelling inverter systems. Moreover, we prove that DPs are a better candidate for the formalization of Time-Varying Phasors in EPSs. Finally, we show that the DP framework offers an accurate strategy to model and simulate inverter systems, because, unlike QS models, it is able to re-construct the non-sinusoidal signals that satisfy the system differential equations while offering a unique phasorial representation for such signals. (AU)

• Processo FAPESP: 18/20104-9 - Monitoramento via sincrofasores, análise de segurança dinâmica e controle de redes elétricas do futuro
• Beneficiário: Luís Fernando Costa Alberto
• Modalidade de apoio: Auxílio à Pesquisa - Temático