[HTML][HTML] A digital twin of a water distribution system by using graph convolutional networks for pump speed-based state estimation

CA Bonilla, A Zanfei, B Brentan, I Montalvo, J Izquierdo - Water, 2022 - mdpi.com
Water distribution system monitoring is currently carried out using advanced real-time
control technologies to achieve a higher operational efficiency. Data analysis techniques …

Leakage detection and localization in water distribution systems: A model invalidation approach

SG Vrachimis, S Timotheou, DG Eliades… - Control Engineering …, 2021 - Elsevier
Abstract Model-based methodologies can assist in addressing the challenging problem of
leakage detection and localization in water distribution systems. However, this is not trivial …

Integrated approach for optimal sensor placement and state estimation: A case study on water distribution networks

J Mankad, B Natarajan, B Srinivasan - ISA transactions, 2022 - Elsevier
The objective of the design and operation of any water distribution network (WDN) includes
meeting the desired demand at sufficient pressure at all nodes. However, this requires …

State estimation and leakage detection in water distribution networks using constrained zonotopes

BS Rego, SG Vrachimis, MM Polycarpou… - … on Control Systems …, 2021 - ieeexplore.ieee.org
State estimation in water distribution networks (WDNs) is a challenging task due to the
scarcity of measurements and the presence of several modeling uncertainties. In the …

Leak detection in water distribution systems using hydraulic interval state estimation

SG Vrachimis, DG Eliades… - 2018 IEEE Conference …, 2018 - ieeexplore.ieee.org
This work develops a new algorithm based on interval hydraulic state estimation for leakage
detection in urban water distribution systems using pressure sensors and smart meters. The …

Iterative hydraulic interval state estimation for water distribution networks

SG Vrachimis, S Timotheou, DG Eliades… - Journal of Water …, 2019 - ascelibrary.org
State estimation of hydraulics (ie, pressure and flows) in water distribution networks is an
important tool for efficient and resilient operation. However, hydraulic state estimation is a …

Calibration via multi-period state estimation in water distribution systems

S Díaz, R Mínguez, J González - Water resources management, 2017 - Springer
Calibration of model parameters is of utmost importance to ensure the good performance of
hydraulic simulation models. In this work, calibration is conceived within a joint multi-period …

Topological state estimation in water distribution systems: Mixed-integer quadratic programming approach

S Díaz, R Mínguez, J González - Journal of Water Resources …, 2018 - ascelibrary.org
State estimation (SE) techniques can be applied to compute the most likely hydraulic state of
a water distribution system from the available measurements at a given time. Different …

Disinfection scheduling in water distribution networks considering input time-delay uncertainty

SG Vrachimis, DG Eliades… - Journal of …, 2024 - iwaponline.com
A significant challenge when attempting to regulate the spatial-temporal concentration of a
disinfectant in a water distribution network is the large and uncertain delay between the time …

Assessing the observability of demand pattern multipliers in water distribution systems using algebraic and numerical derivatives

A Marchi, GC Dandy, DL Boccelli… - Journal of Water …, 2018 - ascelibrary.org
The estimation of user demands in water distribution systems is usually based on flow and
pressure measurements in the system. Even when the number of measurements is larger …