Prosumer‐centric energy storage system and high voltage distribution network topology Co‐optimisation for urban grid congestion management

Abstract

The surge of electricity load and the growing number of renewable energy sources (RESs) in urban power grid result in severe and frequent congestion for transmission networks. This causes the transmission system operators (TSOs) perform the high voltage distribution network (HVDN) reconfiguration frequently. The frequent reconfiguration of the HVDN will cause the fast degradation of high voltage circuit breakers, high maintenance and operational cost, and stability problems. To reduce the frequency of HVDN reconfiguration, this paper proposes a prosumer-centric energy storage system (ESS) and HVDN topology co-optimisation for transmission congestion management. Numerical results show that with the assist of ESS operational strategy, the reconfiguration frequency of HVDN can be significantly reduced while mitigating the transmission congestion.

Economic feasibility of green hydrogen in providing flexibility to medium-voltage distribution grids in the presence of local-heat systems

“…The frequent reconfiguration of the grid as a network option for solving congestion in distribution grids might cause high maintenance and operation costs along with fast degradation of the grid's circuit breakers. To avoid high application of grid reconfiguration, co-optimization of electrical energy storage and reconfiguration of grid topology has been adopted in [8] for dealing with the congestion problem in those grids. Results in [8] declared that the proposed approach resulted in less generation curtailment despite that the frequency of the reconfiguration has been dramatically dropped.…”

“…To avoid high application of grid reconfiguration, co-optimization of electrical energy storage and reconfiguration of grid topology has been adopted in [8] for dealing with the congestion problem in those grids. Results in [8] declared that the proposed approach resulted in less generation curtailment despite that the frequency of the reconfiguration has been dramatically dropped.…”

Multistage Bilevel Planning Model of Energy Storage System in Urban Power Grid Considering Network Reconfiguration

“…Transmission switching is an efficient way to deal with the congestion management problems by elaborately selecting the transmission lines to be disconnected (Zhang et al, 2022). Extensive studies have been performed recently on this subject.…”