Nando Ochoa Pizzali

Asset Congestion and Voltage Management in Large-Scale MV-LV Networks With Solar PV

Andreas T Procopiou, Luis F Ochoa

Journal article  |  2021  |  IEEE TRANSACTIONS ON POWER SYSTEMS

The rapid uptake of residential solar photovoltaic (PV) systems in LV networks is resulting in reverse power flows that can reach ..

Ensuring Distribution Network Integrity Using Dynamic Operating Limits for Prosumers

Kyriacos Petrou, Andreas T Procopiou, Luis Gutierrez-Lagos, Michael Z Liu, Luis F Ochoa, Tom Langstaff, John M Theunissen

Journal article  |  2021  |  IEEE TRANSACTIONS ON SMART GRID

The number of residential consumers with solar PV and batteries, aka prosumers, has been increasing in recent years. Incentives no..

On the Implementation of OPF-Based Setpoints for Active Distribution Networks

Michael Z Liu, Luis F Ochoa, Steven H Low

Journal article  |  2021  |  IEEE TRANSACTIONS ON SMART GRID

In the context of active distribution networks, AC Optimal Power Flow (OPF) has shown great potential to calculate setpoints for c..

Grid and Market Services From the Edge: Using Operating Envelopes to Unlock Network-Aware Bottom-Up Flexibility

Michael Z Liu, Luis Nando Ochoa, Shariq Riaz, Pierluigi Mancarella, Tian Ting, Jack San, John Theunissen

Journal article  |  2021  |  IEEE POWER & ENERGY MAGAZINE

The proliferation of distributed energy resources (DERs) at the edge of the grid, such as residential solar photovoltaics and batt..

bottom-up flexibility flexibility from the edge of the grid

Luis Nando Ochoa, Pierluigi Mancarella

Journal article  |  2021  |  IEEE POWER & ENERGY MAGAZINE

The articles in this special issue focus on new power system project happening around the world involving bottomup flexibility. Th..

Using Dueling Double Q-learning for Voltage Regulation in PV-Rich Distribution Networks

G Custodio, LF Ochoa, T Alpcan, FCL Trindade, RA De Godoy Rosolen

Conference Proceedings  |  2021  |  2021 IEEE Madrid PowerTech, PowerTech 2021 - Conference Proceedings

The widespread adoption of photovoltaic (PV) systems results in reverse power flows that are already causing overvoltage problems ..

Model-Free Voltage Calculations for PV-Rich LV Networks: Smart Meter Data and Deep Neural Networks

V Bassi, L Ochoa, T Alpcan

Conference Proceedings  |  2021  |  2021 IEEE Madrid PowerTech, PowerTech 2021 - Conference Proceedings

The widespread adoption of residential photovoltaic (PV) systems is causing voltage rise issues on low voltage (LV) networks. Oper..

Residential PV Settings for MV-LV Networks: A Distributed Three-Phase AC OPF

AG Givisiez, MZ Liu, LF Ochoa

Conference Proceedings  |  2021  |  2021 IEEE Madrid PowerTech, PowerTech 2021 - Conference Proceedings

The operation of MV-LV networks with high penetrations of residential PV systems will require the active management of PV settings..

Phase Grouping in PV-Rich LV Feeders: Smart Meter Data and Unconstrained k-Means

A Simonovska, LF Ochoa

Conference Proceedings  |  2021  |  2021 IEEE Madrid PowerTech, PowerTech 2021 - Conference Proceedings

The growing amount of residential solar photovoltaic (PV) systems has increased the need for adequate three-phase low-voltage (LV)..

Quantifying the effects of medium voltage-low voltage distribution network constraints and distributed energy resource reactive power capabilities on aggregators

Luis Gutierrez-Lagos, Kyriacos Petrou, Luis Fernando Ochoa

Journal article  |  2021  |  IET GENERATION TRANSMISSION & DISTRIBUTION

Distributed energy resources (DER), such as, photovoltaic systems and batteries, are becoming common among households. Although th..