Unbalanced Three‐Phase Optimal Power Flow for the Optimization of MV and LV Distribution Grids

Bruno, Sérgio; Scala, Massimo La

doi:10.1002/9781119116080.ch1

Cited by 7 publications

(1 citation statement)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Low Voltage (LV) distribution networks used to be a passive segment of the power system, mainly for the supply of consumers; thus, power flows were heading from the bulk transmission points to the distribution grid. Accordingly, from the secondary substation and the downstream connected LV grid, there used to be very limited or an absence of automation for its monitoring and control [1]. In the last decade, there has been a large number of small-scale units, commonly referred to as Distributed Energy Resources (DER), that are getting connected along distribution grids.…”

Section: Introductionmentioning

confidence: 99%

Exploiting OLTC and BESS Operation Coordinated with Active Network Management in LV Networks

et al. 2020

View full text Add to dashboard Cite

The large number of small scale Distributed Energy Resources (DER) such as Electric Vehicles (EVs), rooftop photovoltaic installations and Battery Energy Storage Systems (BESS), installed along distribution networks, poses several challenges related to power quality, efficiency, and reliability. Concurrently, the connection of DER may provide substantial flexibility to the operation of distribution grids and market players such as aggregators. This paper proposes an optimization framework for the energy management and scheduling of operation for Low Voltage (LV) networks assuring both admissible voltage magnitudes and minimized line congestion and voltage unbalances. The proposed tool allows the utilization and coordination of On-Load Tap Changer (OLTC) distribution transformers, BESS, and flexibilities provided by DER. The methodology is framed with a multi-objective three phase unbalanced multi-period AC Optimal Power Flow (MACOPF) solved as a nonlinear optimization problem. The performance of the resulting control scheme is validated on a LV distribution network through multiple case scenarios with high microgeneration and EV integration. The usefulness of the proposed scheme is additionally demonstrated by deriving the most efficient placement and sizing BESS solution based on yearly synthetic load and generation data-set. A techno-economical analysis is also conducted to identify optimal coordination among assets and DER for several objectives.

show abstract

Section: Introductionmentioning

confidence: 99%