Oscar Danilo Montoya
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View article: Joint Feeder Routing and Conductor Sizing in Rural Unbalanced Three-Phase Distribution Networks: An Exact Optimization Approach
Joint Feeder Routing and Conductor Sizing in Rural Unbalanced Three-Phase Distribution Networks: An Exact Optimization Approach Open
This paper addresses the simultaneous feeder routing and conductor sizing problem in unbalanced three-phase distribution systems, formulated as a nonconvex mixed-integer nonlinear program (MINLP) that minimizes the equivalent annualized ex…
View article: Coordinated Active–Reactive Power Scheduling of Battery Energy Storage in AC Microgrids for Reducing Energy Losses and Carbon Emissions
Coordinated Active–Reactive Power Scheduling of Battery Energy Storage in AC Microgrids for Reducing Energy Losses and Carbon Emissions Open
This paper presents an optimization-based scheduling strategy for battery energy storage systems (BESS) in alternating current microgrids, considering both grid-connected and islanded operation. The study addresses two independent objectiv…
View article: Optimal Planning and Dynamic Operation of Thyristor-Switched Capacitors in Distribution Networks Using the Atan-Sinc Optimization Algorithm with IPOPT Refinement
Optimal Planning and Dynamic Operation of Thyristor-Switched Capacitors in Distribution Networks Using the Atan-Sinc Optimization Algorithm with IPOPT Refinement Open
This paper proposes an innovative hybrid optimization framework for the optimal installation and operation of thyristor-switched capacitors (TSCs) within medium-voltage distribution networks, targeting both energy losses reduction and cost…
View article: Cost Reduction in Power Systems via Transmission Line Switching Using Heuristic Search
Cost Reduction in Power Systems via Transmission Line Switching Using Heuristic Search Open
Electrical grids are currently facing new demands due to increased power consumption, growing interconnections, and limitations regarding transmission capacity. These factors introduce considerable challenges for the dispatch and operation…
View article: Hierarchical optimization of DGs, BESSs, and D-STATCOMs for reducing energy losses and CO2 emissions in unbalanced off-grid networks
Hierarchical optimization of DGs, BESSs, and D-STATCOMs for reducing energy losses and CO2 emissions in unbalanced off-grid networks Open
View article: Comparative Control of PWM-CSCs in Single-Phase Microgrids with Sinusoidal Injection
Comparative Control of PWM-CSCs in Single-Phase Microgrids with Sinusoidal Injection Open
This paper investigates control strategies for pulse-width modulation current source converters, which play a crucial role in integrating renewable energy sources and managing variable loads in modern power systems. A comparative study is …
View article: Sustainable Metaheuristic-Based Planning of Rural Medium- Voltage Grids: A Comparative Study of Spanning and Steiner Tree Topologies for Cost-Efficient Electrification
Sustainable Metaheuristic-Based Planning of Rural Medium- Voltage Grids: A Comparative Study of Spanning and Steiner Tree Topologies for Cost-Efficient Electrification Open
This paper presents a heuristic methodology for the optimal expansion of unbalanced three-phase distribution systems in rural areas, simultaneously addressing feeder routing and conductor sizing to minimize the total annualized cost—define…
View article: Applying an Optimization Algorithm Based on the Cauchy Distribution for Active and Reactive Power Management with Batteries in Energy Distribution Systems
Applying an Optimization Algorithm Based on the Cauchy Distribution for Active and Reactive Power Management with Batteries in Energy Distribution Systems Open
Context: This study developed an energy dispatch model (EDM) using the Cauchy-based distribution optimizer (CbDO) for coordinating battery energy storage units (BESUs) and photovoltaic (PV) sources in medium-voltage distribution networks, …
View article: A dynamic average consensus-based control strategy for optimal current-sharing and voltage regulation in DC microgrids
A dynamic average consensus-based control strategy for optimal current-sharing and voltage regulation in DC microgrids Open
This paper proposes a novel distributed secondary control strategy for DC microgrids that ensures proportional current-sharing between distributed generators (DGs) while maintaining voltage stability under dynamic conditions. Unlike existi…
View article: Techno-Economic Assessment of Fixed and Variable Reactive Power Injection Using Thyristor-Switched Capacitors in Distribution Networks
Techno-Economic Assessment of Fixed and Variable Reactive Power Injection Using Thyristor-Switched Capacitors in Distribution Networks Open
This paper presents a hybrid optimization framework for solving the optimal reactive power compensation problem in medium-voltage smart distribution networks. Leveraging Julia’s computational environment, the proposed method combines the g…
View article: Energy management system applied to wind turbines in AC microgrids to minimize operational costs, energy losses, and <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si2.svg" display="inline" id="d1e2173"> <mml:mrow> <mml:mi>C</mml:mi> <mml:msub> <mml:mrow> <mml:mi>O</mml:mi> </mml:mrow> <mml:mrow> <mml:mn>2</mml:mn> </mml:mrow> </mml:msub> </mml:mrow> </mml:math> emissions
Energy management system applied to wind turbines in AC microgrids to minimize operational costs, energy losses, and emissions Open
View article: Generalized Power Flow Algorithms for Monopolar DC Networks Using Broyden’s Method
Generalized Power Flow Algorithms for Monopolar DC Networks Using Broyden’s Method Open
Solving the power flow problem in transmission networks is crucial for ensuring the reliable and efficient operation of electrical power systems. Power flow analysis allows engineers to determine the voltage, current, and power flows of a …
View article: Multi-Objective Optimization for Economic and Environmental Dispatch in DC Networks: A Convex Reformulation via a Conic Approximation
Multi-Objective Optimization for Economic and Environmental Dispatch in DC Networks: A Convex Reformulation via a Conic Approximation Open
This paper addresses the economic–environmental dispatch (EED) problem in DC power grids integrating thermoelectric and photovoltaic generation. A multi-objective optimization model is developed to minimize both fuel costs and CO2 emission…
View article: Improved Rosenbrock method with error estimator and Jacobian approximation using complex step
Improved Rosenbrock method with error estimator and Jacobian approximation using complex step Open
This paper proposes an A-stable one-stage Rosenbrock method for the solution of Ordinary Differential Equations (ODEs). In this method, Jacobians are approximated via complex step finite differences. An asymptotically accurate estimator of…
View article: Optimal Placement and Sizing of PV Systems and D-STATCOMs in Medium-Voltage Distribution Networks Using the Atan-Sinc Optimization Algorithm
Optimal Placement and Sizing of PV Systems and D-STATCOMs in Medium-Voltage Distribution Networks Using the Atan-Sinc Optimization Algorithm Open
The integration of photovoltaic (PV) systems and D-STATCOMs in medium-voltage distribution networks offers significant potential for enhancing voltage profiles, minimizing power losses, and improving overall system efficiency. This paper i…
View article: Optimizing economic and operational performance in AC microgrids: An intelligent energy management strategy for BESS using the Generalized Normal Distribution Optimizer
Optimizing economic and operational performance in AC microgrids: An intelligent energy management strategy for BESS using the Generalized Normal Distribution Optimizer Open
View article: Equivalencia entre diseño de control óptimo inverso y el control basado en pasividad por asignación de interconexión y amortiguamiento para convertidores electrónicos con modelo bilineal
Equivalencia entre diseño de control óptimo inverso y el control basado en pasividad por asignación de interconexión y amortiguamiento para convertidores electrónicos con modelo bilineal Open
Este trabajo presenta un análisis comparativo entre el diseño de control óptimo inverso (IOC) y el enfoque de control basado en pasividad por asignación de interconexión y amortiguamiento (IDA-PBC) aplicado a convertidores electrónicos de …
View article: MI-Convex Approximation for the Optimal Siting and Sizing of PVs and D-STATCOMs in Distribution Networks to Minimize Investment and Operating Costs
MI-Convex Approximation for the Optimal Siting and Sizing of PVs and D-STATCOMs in Distribution Networks to Minimize Investment and Operating Costs Open
The optimal integration of photovoltaic (PV) systems and distribution static synchronous compensators (D-STATCOMs) in electrical distribution networks is important to reduce their operating costs, improve their voltage profiles, and enhanc…
View article: Characterization of Demand Profiles for Medium-Voltage Substations in Bogotá Using a Python Interface
Characterization of Demand Profiles for Medium-Voltage Substations in Bogotá Using a Python Interface Open
This document presents a comprehensive methodology for analyzing operational demand forecast data from XM’s website using a Python script executed in Google Colaboratory (Colab). The script is designed to process text files containing fore…
View article: Intelligent Active and Reactive Power Management for Wind-Based Distributed Generation in Microgrids via Advanced Metaheuristic Optimization
Intelligent Active and Reactive Power Management for Wind-Based Distributed Generation in Microgrids via Advanced Metaheuristic Optimization Open
This research evaluates the performance of six metaheuristic algorithms in the active and reactive power management of wind turbines (WTs) integrated into an AC microgrid (MG). The population-based genetic algorithm (PGA) is proposed as th…
View article: Numerical methods for evolutionary problems in partial differential equations and control
Numerical methods for evolutionary problems in partial differential equations and control Open
In this paper we implement the finite element method for parabolic problems with dominant transport terms. The formulation of the linear system of equations coming from a partial differential equation takes its form from the weakening of t…
View article: Optimized conductor selection and phase balancing in unbalanced distribution networks: Economic optimization via the vortex search algorithm
Optimized conductor selection and phase balancing in unbalanced distribution networks: Economic optimization via the vortex search algorithm Open
The inherent characteristics of unbalanced three-phase distribution networks can have negative technical and financial effects. In this vein, optimal conductor size selection and phase balancing are among the most common strategies for imp…
View article: Integration of Distributed Energy Resources in Unbalanced Networks Using a Generalized Normal Distribution Optimizer
Integration of Distributed Energy Resources in Unbalanced Networks Using a Generalized Normal Distribution Optimizer Open
This article proposes an optimization methodology to address the joint placement as well as the capacity design of PV units and D-STATCOMs within unbalanced three-phase distribution systems. The proposed model adopts a mixed-integer nonlin…
View article: A Mixed-Integer Convex Optimization Framework for Cost-Effective Conductor Selection in Radial Distribution Networks While Considering Load and Renewable Variations
A Mixed-Integer Convex Optimization Framework for Cost-Effective Conductor Selection in Radial Distribution Networks While Considering Load and Renewable Variations Open
The optimal selection of conductors (OCS) in radial distribution networks is a critical aspect of system planning, directly impacting both investment costs and energy losses. This paper proposed a mixed-integer convex (MI-Convex) optimizat…
View article: Shunt active power filter using model predictive control with stability guarantee
Shunt active power filter using model predictive control with stability guarantee Open
This paper presents a model predictive control (MPC) strategy to solve an optimization problem based on system state and control variables, subject to constraints imposed by the control objective. The cost function exhibits convex characte…
View article: A Decoupled PI Design for a Second-Order Model of a Magnetic Levitation System
A Decoupled PI Design for a Second-Order Model of a Magnetic Levitation System Open
This paper presents a decoupled control strategy for stabilizing a second-order magnetic levitation system (MLS) based on a nonlinear feedback linearization approach combined with a proportional-integral (PI) controller. The proposed metho…
View article: A Family of Newton and Quasi-Newton Methods for Power Flow Analysis in Bipolar Direct Current Networks with Constant Power Loads
A Family of Newton and Quasi-Newton Methods for Power Flow Analysis in Bipolar Direct Current Networks with Constant Power Loads Open
This paper presents a comprehensive study on the formulation and solution of the power flow problem in bipolar direct current (DC) distribution networks with unbalanced constant power loads. Using the nodal voltage method, a unified nonlin…
View article: Simultaneous Feeder Routing and Conductor Selection in Rural Distribution Networks Using an Exact MINLP Approach
Simultaneous Feeder Routing and Conductor Selection in Rural Distribution Networks Using an Exact MINLP Approach Open
This article addresses the optimal network expansion problem in rural distribution systems using a mixed-integer nonlinear programming (MINLP) model that simultaneously performs route selection and conductor sizing in radial distribution s…
View article: Intelligent operation of photovoltaic generators in isolated AC microgrids to reduce costs and improve operating conditions
Intelligent operation of photovoltaic generators in isolated AC microgrids to reduce costs and improve operating conditions Open
This paper addresses the challenges associated with optimizing the operation of photovoltaic distributed generators in isolated electrical microgrids. With the aim of reducing energy production and system maintenance costs and improving th…
View article: Optimized Integration of Photovoltaic Generators and DSTATCOM Devices in Distribution Networks Using Metaheuristic Algorithms
Optimized Integration of Photovoltaic Generators and DSTATCOM Devices in Distribution Networks Using Metaheuristic Algorithms Open