Analysis of the Converter Synchronizing Method for the Contribution of Battery Energy Storage Systems to Inertia Emulation

Andrés Peña Asensio, Francisco Gonzalez-Longatt, Santiago Arnaltes and Jose Luis Rodríguez-Amenedo
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Andrés Peña Asensio: Departamento de Ingeniería, Eléctrica Universidad Carlos III de Madrid, 28911 Leganés, Spain
Francisco Gonzalez-Longatt: Institutt for Elektro, IT og Kybernetikk,Universitetet I Sørøst-Norge, 3918 Porsgrunn, Norway
Santiago Arnaltes: Departamento de Ingeniería, Eléctrica Universidad Carlos III de Madrid, 28911 Leganés, Spain
Jose Luis Rodríguez-Amenedo: Departamento de Ingeniería, Eléctrica Universidad Carlos III de Madrid, 28911 Leganés, Spain

Energies, 2020, vol. 13, issue 6, 1-18

Abstract: This paper presents a comprehensive analysis of the effect of the converter synchronizing methods on the contribution that Battery Energy Storage Systems (BESSs) can provide for the support of the inertial response of a power system. Solutions based on phase-locked loop (PLL) synchronization and virtual synchronous machine (VSM) synchronization without PLL are described and then compared by using time-domain simulations for an isolated microgrid (MG) case study. The simulation results showed that inertial response can be provided both with and without the use of a PLL. However, the behavior in the first moments of the inertia response differed. For the PLL-based solutions, the transient response was dominated by the low-level current controllers, which imposed fast under-damped oscillations, while the VSM systems presented a slower response resulting in a higher amount of energy exchanged and therefore a greater contribution to the support of the system inertial response. Moreover, it was demonstrated that PLL-based solutions with and without derivative components presented similar behavior, which significantly simplified the implementation of the PLL-based inertia emulation solutions. Finally, results showed that the contribution of the BESS using VSM solutions was limited by the effect of the VSM-emulated inertia parameters on the system stability, which reduced the emulated inertia margin compared to the PLL-based solutions.

Keywords: energy storage systems; frequency response; virtual inertia (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (8)

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