Publications related to Pontryagin's maximum principle

Analytical Computation of Power Grids’ Sensitivity Coefficients with Voltage-Dependent Injections

Mario Paolone, Sherif Alaa Salaheldin Fahmy

With the increasing need of real-time regulation in power systems, grid-aware-control-frameworks are relying more often on sensitivity coefficients (SCs) to formulate and efficiently solve optimal control problems. As known, SCs are the derivatives of cont ...

IEEE2021

Isogeometric Mortar Coupling for Electromagnetic Problems

Annalisa Buffa, Rafael Vazquez Hernandez

This paper discusses and analyzes two domain decomposition approaches for electromagnetic problems that allow the combination of domains discretized by either Nédélec-type polynomial finite elements or spline-based isogeometric analysis. The first approach ...

2020

Optimal provision of concurrent primary frequency and local voltage control from a BESS considering variable capability curves: Modelling and experimental assessment

Mario Paolone, Fabrizio Sossan, Antonio Zecchino, Zhao Yuan

This paper proposes a control method for battery energy storage systems (BESSs) to provide concurrent primary frequency and local voltage regulation services. The actual variable active and reactive power capability of the converter, along with the state-o ...

2020

Isogeometric Mortar Coupling for Electromagnetic Problems

Annalisa Buffa, Rafael Vazquez Hernandez

This paper discusses and analyses two domain decomposition approaches for electromagnetic problems that allow the combination of domains discretised by either Nédélec-type polynomial finite elements or spline-based isogeometric analysis. The first approach ...

2019

Coupling non-conforming discretizations of PDEs by spectral approximation of the Lagrange multiplier space

Simone Deparis, Luca Pegolotti, Antonio Iubatti

This work focuses on the development of a non-conforming method for the coupling of PDEs based on weakly imposed transmission conditions: the continuity of the global solution is enforced by a finite number of Lagrange multipliers defined over the interfac ...

2019

Fingering instability on curved substrates: optimal initial film and substrate perturbations

François Gallaire, Gioele Mariano Nicolò Balestra, Yves-Marie François Ducimetière, Mohamed Badaoui

We investigate the stability of a thin Newtonian fluid spreading on a horizontal cylinder under the action of gravity. The capillary ridge forming at the advancing front is known to be unstable with respect to spanwise perturbations, resulting in the forma ...

2019

Optimal Lagrange Multipliers for Dependent Rate Allocation in Video Coding

Pascal Frossard, Ana Karina De Abreu Goes

In a typical video rate allocation problem, the objective is to optimally distribute a source rate budget among a set of (in)dependently coded data units to minimize the total distortion. Conventional Lagrangian approaches convert the lone rate constraint ...

Elsevier2018

Sequential Linear Quadratic Optimal Control for Nonlinear Switched Systems

Maryam Kamgarpour, Jonas Buchli, Farbod Farshidian

In this contribution, we introduce an efficient method for solving the optimal control problem for an unconstrained nonlinear switched system with an arbitrary cost function. We assume that the sequence of the switching modes are given but the switching ti ...

2017

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Pontryagin's maximum principle

Analytical Computation of Power Grids’ Sensitivity Coefficients with Voltage-Dependent Injections

Isogeometric Mortar Coupling for Electromagnetic Problems

A solution method for predictive simulations in a stochastic environment

Optimal provision of concurrent primary frequency and local voltage control from a BESS considering variable capability curves: Modelling and experimental assessment

Isogeometric Mortar Coupling for Electromagnetic Problems

Coupling non-conforming discretizations of PDEs by spectral approximation of the Lagrange multiplier space

Fingering instability on curved substrates: optimal initial film and substrate perturbations

Optimal Lagrange Multipliers for Dependent Rate Allocation in Video Coding

Dynamic Optimization of Constrained Semi-Batch Processes Using Pontryagin’s Minimum Principle – An Effective Quasi-Newton Approach

Sequential Linear Quadratic Optimal Control for Nonlinear Switched Systems

Graph Chatbot

Chat with Graph Search

Coupling non-conforming discretizations of PDEs by spectral approximation of the Lagrange multiplier space

Isogeometric Mortar Coupling for Electromagnetic Problems

Analytical Computation of Power Grids’ Sensitivity Coefficients with Voltage-Dependent Injections

Fingering instability on curved substrates: optimal initial film and substrate perturbations

Optimal provision of concurrent primary frequency and local voltage control from a BESS considering variable capability curves: Modelling and experimental assessment

A solution method for predictive simulations in a stochastic environment

Isogeometric Mortar Coupling for Electromagnetic Problems

Optimal Lagrange Multipliers for Dependent Rate Allocation in Video Coding

Dynamic Optimization of Constrained Semi-Batch Processes Using Pontryagin’s Minimum Principle – An Effective Quasi-Newton Approach

Sequential Linear Quadratic Optimal Control for Nonlinear Switched Systems