Summary:
This paper presents a cost-based TSO-DSO coordination model to quantify the value of local flexibility services and analyze its impact on the transmission grid expansion and the system operation. Flexibility is provided to the DC power flow transmission grid model by microgrids within the integrated AC power flow distribution grid model. The model’s objective is to minimize the overall cost of transmission investments and procured flexibility and is achieved using a bilevel optimization approach where the power exchanges on all connected grid interfaces are controlled. Case studies using a combined test system of the IEEE RTS-96 transmission network interfacing multiple 33-bus distribution grids were performed to validate the model and assess the values and impacts of local flexibility on the transmission system expansion. The results showed that the proposed model modified the investment plan and dispatch of flexibility resources reducing the investment and operation cost of the transmission system.
Spanish layman's summary:
El valor e impacto de los servicios de flexibilidad local a la hora de planificar la expansión de la transmisión fue presentado por Erik F. Alvarez de la Universidad Pontificia de Comillas en la PSCC en Oporto en junio 2022.
English layman's summary:
The values and impacts of local flexibility services when planning expansion of transmission systems was the topic when Erik F. Alvarez from Comillas Pontifical University presented at the PSCC in Porto at the end of June 2022.
Keywords: TSO-DSO coordinationFlexibility serviceMicrogridsTransmission expansion
JCR Impact Factor and WoS quartile: 3,900 - Q2 (2022)
DOI reference:
https://doi.org/10.1016/j.epsr.2022.108480
Published on paper: November 2022.
Published on-line: July 2022.
Citation:
E. F. Álvarez, L. Olmos, A. Ramos, K. Antoniadou-Plytaria, D. Steen, L.A. Tuan, Values and impacts of incorporating local flexibility services in transmission expansion planning. Electric Power Systems Research. Vol. 212, pp. 108480-1 - 108480-9, November 2022. [Online: July 2022]
