Results 51 to 60 of about 407 (160)

Association of prostate‐specific antigen density with prostate cancer mortality after a benign systematic prostate biopsy result

BJU International, Volume 135, Issue 5, Page 841-850, May 2025.
Objective To assess the association between prostate‐specific antigen (PSA) density (PSAD) and prostate cancer mortality after a benign result on systematic transrectal ultrasonography (TRUS)‐guided prostate biopsy. Patients and Methods This retrospective study used data from the Finnish Randomised Study of Screening for Prostate Cancer (FinRSPC ...
Juho Pylväläinen, Kirsi Talala, Jani Raitanen, Antti Rannikko, Anssi Auvinen   +4 more
wiley   +1 more source

Power oscillation suppression strategy of VSG based on finite‐time Hamiltonian method

IET Power Electronics, Volume 18, Issue 1, January/December 2025.
A Hamiltonian finite‐time controller is designed to realize virtual synchronous generator finite‐time control. The Hamiltonian function is designed as a fractional power form by energy shaping, and the convergence speed of the system is accelerated by damping injection so that the system can quickly stabilize at the expected balance point.
Guo Xiaomei, Yonggang Li, Yichen Zhou
wiley   +1 more source

Comparison of Alternative Port-Hamiltonian Dynamics Extensions to the Thermodynamic Domain Toward IDA-PBC-Like Control: Application to a Heat Transfer Model

Dynamics
The dynamics of port-Hamiltonian systems is based on energy balance principles (the first law of thermodynamics) embedded in the structure of the model. However, when dealing with thermodynamic subsystems, the second law (entropy production) should also ...
Oleksiy Kuznyetsov
doaj   +1 more source

On IDA-PBC with Maximum Energy Shapeability

Interconnection and Damping Assignment Passivity-Based Control (IDA-PBC) is a well-established stabilization technique for affine nonlinear systems. However, its application is generally hindered by the requirement of solving a set of partial differential equations (PDEs), i.e., the so-called matching equation. This paper introduces the notion of \emph{
Jiao, Ziheng, Wu, Chengshuai, Fan, Bo, Zhang, Meng, Ortega, Romeo   +4 more
openaire   +2 more sources

Optimizing Power Flow in Photovoltaic‐Hybrid Energy Storage Systems: A PSO and DPSO Approach for PI Controller Tuning

International Transactions on Electrical Energy Systems, Volume 2025, Issue 1, 2025.
This paper focuses on developing power management strategies for hybrid energy storage systems (HESSs) combining batteries and supercapacitors (SCs) with photovoltaic (PV) systems. The proposed control scheme is based on proportional‐integral (PI) controllers optimized with particle swarm optimization (PSO) and duplicate particle swarm optimization ...
Samira Heroual, Belkacem Belabbas, Yasser Diab, Mohamed Metwally Mahmoud, Tayeb Allaoui, Naima Benabdallah, Sujin Bureerat   +6 more
wiley   +1 more source

Adaptive Passivity-Based Control for DC Motor Speed Regulation in DC-DC Converter-Fed Systems

IEEE Access
This paper presents a unified adaptive passivity-based control strategy using incremental modeling to regulate the angular speed of a DC series motor driven by DC-DC converters operating in both buck and boost configurations.
Diego Montoya Acevedo, Ignacio Parraguez-Garrido, Walter Gil-Gonzalez, Oscar Danilo Montoya, Catalina Gonzalez-Castano   +4 more
doaj   +1 more source

Interconnection and Damping Assignment Passivity–Based Control of an Underactuated 2–DOF Gyroscope

International Journal of Applied Mathematics and Computer Science, 2018
In this paper we present interconnection and damping assignment passivity-based control (IDA-PBC) applied to a 2 degrees of freedom (DOFs) underactuated gyroscope.
Cordero Gustavo, Santibáñez Víctor, Dzul Alejandro, Sandoval Jesús   +3 more
doaj   +1 more source

Application perturb and observe maximum power point tracking with interconnection and damping assignment passive-based control for photovoltaic system using boost converter

Electrical engineering & Electromechanics
Introduction. Power generation from renewable sources, such as photovoltaic (PV) power, has become increasingly important in replacing fossil fuels. A PV system’s maximum power point (MPP) moves along its power-voltage curve in response to environmental ...
A. Toualbia, A. B. Djilali, R. Taleb, N. Mansour, M. Souaihia, H. Saidi   +5 more
doaj   +1 more source

Structural Decomposition of the Passivity-Based Control System of Wind–Solar Power Generating and Hybrid Battery-Supercapacitor Energy Storage Complex

Dynamics
Wind–solar power generating and hybrid battery-supercapacitor energy storage complex is used for autonomous power supply of consumers in remote areas. This work uses passivity-based control (PBC) for this complex in accordance with the accepted energy ...
Ihor Shchur, Marek Lis, Rostyslav-Ivan Kuzyk   +2 more
doaj   +1 more source

Decentralized Control of DC Microgrids Using Interconnection and Damping Assignment Passivity-Based Control Technique: Experimental Verification

IEEE Access
A decentralized control approach is introduced in this paper that utilizes passivity-based control for two DC-distributed energy sources supplying the power of a load. Considering the concept of passivity, if each distributed generator exhibits passivity,
Mohammad Afkar, Cong Yuan, Roghayeh Gavagsaz-Ghoachani, Wiset Saksiri, Matheepot Phattanasak, Jean-Philippe Martin, Serge Pierfederici   +6 more
doaj   +1 more source