Mathematical modelling and dynamic optimization of phase-locked loop systems using hybrid PSO-gradient descent approach

This paper presents a novel mathematical framework for modelling and optimizing Phase-Locked Loop (PLL) dynamics in grid-connected systems using a hybrid optimization approach. The proposed model combines a state-space representation of PLL dynamics with an innovative dual-optimization algorithm int...

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Main Authors: Mrinal Kanti Rajak, Rajen Pudur
Format: Article
Language:English
Published: Taylor & Francis Group 2025-12-01
Series:Systems Science & Control Engineering
Subjects:
Online Access:https://www.tandfonline.com/doi/10.1080/21642583.2024.2448636
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author Mrinal Kanti Rajak
Rajen Pudur
author_facet Mrinal Kanti Rajak
Rajen Pudur
author_sort Mrinal Kanti Rajak
collection DOAJ
description This paper presents a novel mathematical framework for modelling and optimizing Phase-Locked Loop (PLL) dynamics in grid-connected systems using a hybrid optimization approach. The proposed model combines a state-space representation of PLL dynamics with an innovative dual-optimization algorithm integrating Particle Swarm Optimization (PSO) and Gradient Descent (GD). A comprehensive mathematical model is developed, incorporating the nonlinear dynamics of the PLL system through differential equations and transfer functions. The hybrid optimization framework is formulated as a constrained optimization problem, where PSO provides global search capabilities while GD ensures local convergence. Numerical simulations demonstrate the model's superior performance compared to conventional approaches including SRF-PLL, DDSRF-PLL, and MSOGI-PLL, achieving 40% faster convergence and maintaining phase tracking errors below 3 degrees during severe grid disturbances. The framework offers a systematic method for analyzing and optimizing dynamical systems in power electronics.
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publisher Taylor & Francis Group
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series Systems Science & Control Engineering
spelling doaj-art-0a7c4b6a69734a008f5c263b3c772fce2025-01-08T19:19:56ZengTaylor & Francis GroupSystems Science & Control Engineering2164-25832025-12-0113110.1080/21642583.2024.2448636Mathematical modelling and dynamic optimization of phase-locked loop systems using hybrid PSO-gradient descent approachMrinal Kanti Rajak0Rajen Pudur1Department of Electrical Engineering, National Institute of Technology Arunachal Pradesh, Jote, Arunachal Pradesh, IndiaDepartment of Electrical Engineering, National Institute of Technology Arunachal Pradesh, Jote, Arunachal Pradesh, IndiaThis paper presents a novel mathematical framework for modelling and optimizing Phase-Locked Loop (PLL) dynamics in grid-connected systems using a hybrid optimization approach. The proposed model combines a state-space representation of PLL dynamics with an innovative dual-optimization algorithm integrating Particle Swarm Optimization (PSO) and Gradient Descent (GD). A comprehensive mathematical model is developed, incorporating the nonlinear dynamics of the PLL system through differential equations and transfer functions. The hybrid optimization framework is formulated as a constrained optimization problem, where PSO provides global search capabilities while GD ensures local convergence. Numerical simulations demonstrate the model's superior performance compared to conventional approaches including SRF-PLL, DDSRF-PLL, and MSOGI-PLL, achieving 40% faster convergence and maintaining phase tracking errors below 3 degrees during severe grid disturbances. The framework offers a systematic method for analyzing and optimizing dynamical systems in power electronics.https://www.tandfonline.com/doi/10.1080/21642583.2024.2448636Dynamical systems modellinghybrid optimization and power system dynamics
spellingShingle Mrinal Kanti Rajak
Rajen Pudur
Mathematical modelling and dynamic optimization of phase-locked loop systems using hybrid PSO-gradient descent approach
Systems Science & Control Engineering
Dynamical systems modelling
hybrid optimization and power system dynamics
title Mathematical modelling and dynamic optimization of phase-locked loop systems using hybrid PSO-gradient descent approach
title_full Mathematical modelling and dynamic optimization of phase-locked loop systems using hybrid PSO-gradient descent approach
title_fullStr Mathematical modelling and dynamic optimization of phase-locked loop systems using hybrid PSO-gradient descent approach
title_full_unstemmed Mathematical modelling and dynamic optimization of phase-locked loop systems using hybrid PSO-gradient descent approach
title_short Mathematical modelling and dynamic optimization of phase-locked loop systems using hybrid PSO-gradient descent approach
title_sort mathematical modelling and dynamic optimization of phase locked loop systems using hybrid pso gradient descent approach
topic Dynamical systems modelling
hybrid optimization and power system dynamics
url https://www.tandfonline.com/doi/10.1080/21642583.2024.2448636
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AT rajenpudur mathematicalmodellinganddynamicoptimizationofphaselockedloopsystemsusinghybridpsogradientdescentapproach