Core Concepts
This paper explores the influence of water quality controllability on the optimal pump scheduling problem in drinking water networks. It develops a framework that incorporates different controllability metrics within the operational hydraulic optimization problem to attain an adequate level of water quality control across the system.
Abstract
The paper presents a novel approach to addressing the operation of water distribution networks, which aims to efficiently deliver adequate water quantity while ensuring safe water quality. It recognizes the dependency of water quality dynamics on the system's hydraulics, which influences the performance of the water quality controller.
The key highlights and insights are:
The paper takes a control-theoretic approach to examine the water quality dependency on the hydraulics, exploring the influence of accountability for water quality controllability improvement when addressing the pump scheduling problem.
It develops a framework that incorporates different controllability metrics within the operational hydraulic optimization problem, with the aim of attaining an adequate level of water quality control across the system.
The paper assesses the performance of the proposed framework on various scaled networks with a wide range of numerical scenarios, evaluating its effects on the cumulative cost of the interconnected systems as well as the subsequent performance of the water quality controller.
The paper highlights the challenges in formulating and solving a problem that takes into account the factors affecting water quality controllability, such as flow directions, number of pipe segments, and the need for targeted controllability.
To address these challenges, the paper proposes simplification strategies, including approximating the Gramian, employing rank-oriented and energy-oriented formulations, and focusing on specific important network paths for large networks.
The paper integrates the quality-aware pump schedules with a model predictive control algorithm for water quality regulation, demonstrating the benefits of the proposed approach.
Stats
The paper does not provide specific numerical data or metrics to support the key logics. It focuses on the conceptual development of the quality-aware hydraulic control framework.
Quotes
The paper does not contain any striking quotes supporting the key logics.