9 citations · 9 across the 10 of their papers we have counts for
11 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…
AC-DC Power Systems Optimization with Droop Control Smooth Approximation
Ghulam Mohy-ud-din, Rahmat Heidari, Frederik Geth +2
This paper addresses the challenges of embedding common droop control characteristics in ac-dc power system steady-state simulation and optimization problems. We propose a smooth a…
Improved Algebraic Inverter Modelling for Four-Wire Power Flow Optimization
Rahmat Heidari, Frederik Geth
This paper discusses the modeling of inverters used in distributed energy resources in steady state. Modeling the interaction between distribution grids and inverter-based resource…
An Open Optimal Power Flow Model for the Australian National Electricity Market
Rahmat Heidari, Matthew Amos, Frederik Geth
The Australian National Electricity Market (NEM) is a complex energy market that faces challenges due to the increasing number of distributed energy resources (DERs) and the transi…
On the Implementation of the Fixed Point Iteration Current Injection Method to Solve Four-Wire Unbalanced Power Flow in PowerModelsDistribution.jl
Frederik Geth, Sander Claeys, Rahmat Heidari
This report serves as a technology description of a Julia-based re-implementation of the fixed-point current injection algorithm, available in PowerModelsDistribution.jl [1]. This…
Computational Analysis of Impedance Transformations for Four-Wire Power Networks with Sparse Neutral Grounding
Frederik Geth, Rahmat Heidari, Arpan Koirala
In low-voltage distribution networks, the integration of novel energy technologies can be accelerated through advanced optimization-based analytics such as network state estimation…
Ultimate boundedness of droop controlled Microgrids with secondary loops
Rahmat Heidari, Maria Seron, Julio Braslavsky
In this paper we study theoretical properties of inverter-based microgrids controlled via primary and secondary loops. Stability of these microgrids has been the subject of a numbe…