5 papers
DC Link Capacitor Ripple Constraints Limit the Benefits of Utility-Owned Four-Wire Power Converters
Matthew Deakin, Xu Deng, Shafiq Odhano +1
Utilities are increasingly interested in power converters to increase the headroom of their assets by actively controlling power flows on their network. In this work we demonstrate…
Dynamic Network Prices for Prosumer-aware Hosting Capacity Management
Jiawei Zhang, Gregor Verbic, Frederik Geth +3
The fast uptake of distributed energy resources (DERs) presents increasing challenges for managing hosting capacity in distribution networks. Existing solutions include direct load…
Power Converter DC Link Ripple and Network Unbalance as Active Constraints in Distribution System Optimal Power Flow
Matthew Deakin, Rahmat Heidari, Xu Deng
The mitigation of unbalanced grid voltages or currents by voltage source converters results in power ripple on the dc link, and is a key converter design parameter due to hardware…
Stochastic Security Constrained AC Optimal Power Flow Using General Polynomial Chaos Expansion
Ghulam Mohy-ud-din, Yunqi Wang, Rahmat Heidari +1
Addressing the uncertainty introduced by increasing renewable integration is crucial for secure power system operation, yet capturing it while preserving the full nonlinear physics…
Distribution System State and Impedance Estimation Augmented with Carson's Equations
Marta Vanin, Frederik Geth, Rahmat Heidari +1
The impedances of cables and lines used in (multi-conductor) distribution networks are usually unknown or approximated, and may lead to problematic results for any physics-based po…