Publications by Zhao Yuan | EPFL Graph Search

Optimal grid-forming control of battery energy storage systems providing multiple services: Modeling and experimental validation

Sidi-Rachid Cherkaoui, Mario Paolone, Zhao Yuan, Elena Vagnoni, Rahul Kumar Gupta, Antonio Zecchino, Yihui Zuo, Francesco Gerini

This paper proposes and experimentally validates a joint control and scheduling framework for a grid-forming converter-interfaced Battery Energy Storage Systems (BESSs) providing multiple services to the electrical grid. The framework is designed to dispat ...

Elsevier2022

Real-time Control of Battery Energy Storage Systems to Provide Ancillary Services Considering Voltage-Dependent Capability of DC-AC Converters

Sidi-Rachid Cherkaoui, Mario Paolone, Zhao Yuan, Antonio Zecchino

Frequency response and voltage support are vital ancillary services for power grids. In this paper, we design and experimentally validate a real-time control framework for battery energy storage systems (BESSs) to provide ancillary services to power grids. ...

2021

Performance assessment of grid-forming and grid-following converter-interfaced battery energy storage systems on frequency regulation in low-inertia power grids

Sidi-Rachid Cherkaoui, Mario Paolone, Fabrizio Sossan, Zhao Yuan, Antonio Zecchino, Yihui Zuo

Power systems with large shares of converter-interfaced renewables may be characterised by low grid inertia due to the lack of frequency containment provided by synchronous generators. Battery energy storage systems (BESSs), which can adjust their power ou ...

2021

Optimal provision of concurrent primary frequency and local voltage control from a BESS considering variable capability curves: Modelling and experimental assessment

Sidi-Rachid Cherkaoui, Mario Paolone, Fabrizio Sossan, Zhao Yuan, Antonio Zecchino

This paper proposes a control method for battery energy storage systems (BESSs) to provide concurrent primary frequency and local voltage regulation services. The actual variable active and reactive power capability of the converter, along with the state-o ...

Elsevier2020

Properties of convex optimal power flow model based on power loss relaxation

Mario Paolone, Zhao Yuan

We derive the branch ampacity constraint associated to power losses for the convex optimal power flow (OPF) model based on the branch flow formulation. The branch ampacity constraint derivation is motivated by the physical interpretation of the transmissio ...

Elsevier2020