Leposava Ristić
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View article: Deadbeat-based control for MMC-HVDC power systems
Deadbeat-based control for MMC-HVDC power systems Open
With the domination of modular multilevel converters (MMCs) interfaced power grids, especially for transmission of the wind generated energy, the control of such power electronic interfaced grids is of an utmost important for the proper op…
View article: Hardware-in-the-loop testing of brushless doubly fed reluctance generator under unbalanced grid voltage conditions
Hardware-in-the-loop testing of brushless doubly fed reluctance generator under unbalanced grid voltage conditions Open
An extended vector control method for the operation of a brushless doubly fed reluctance generator-based wind energy conversion system under unbalanced grid voltage conditions is proposed. The modified scheme has the capability to control …
View article: DFIG-Based WECS With Partial-Scale Converter: Efficiency, Cost, and Volume Comparison of SiC-Based and IGBT-Based Converter Solution
DFIG-Based WECS With Partial-Scale Converter: Efficiency, Cost, and Volume Comparison of SiC-Based and IGBT-Based Converter Solution Open
The green goals imposed by many countries and the increasing application of renewable energy systems are bringing power electronics to the center of attention. Of particular interest are the wide band-gap devices, as they offer important b…
View article: Encoderless Predictive Speed and Torque Control of an Induction Motor
Encoderless Predictive Speed and Torque Control of an Induction Motor Open
Recently, model predictive control (MPC) has gained popularity in the control of power converters and electric drives. In this paper, the advantages of two MPC strategies are combined, and a cascaded encoderless predictive speed and torque…
View article: Hardware-in-the-Loop Simulation of a Virtual Synchronous Motor
Hardware-in-the-Loop Simulation of a Virtual Synchronous Motor Open
In this paper, the operation of a three-phase active rectifier controlled as a virtual synchronous machine is presented and developed on a hardware-in-the-loop platform. The relevant rectifier control algorithm variables, such as grid curr…
View article: Enhancing Stability of Grid-Following Inverter for Renewables
Enhancing Stability of Grid-Following Inverter for Renewables Open
<p>The increasing penetration of wind and solar power sources in power networks has led to the need for advanced converters' control technologies to support the integration of these renewable energy sources into the grid. Inverters p…
View article: Improvement of two grid power factor control methods for matrix converter open‐end‐winding drive with common‐mode voltage elimination supplied by unbalanced grid
Improvement of two grid power factor control methods for matrix converter open‐end‐winding drive with common‐mode voltage elimination supplied by unbalanced grid Open
This paper investigates space‐vector‐modulation (SVM) technique that uses only rotating space vectors to drive a direct matrix converter (DMC) with zero common‐mode voltage (CMV). Two methods for controlling grid power factor have been pro…
View article: Efficiency and Performance Optimization of State-of-the-Art “Multi-Phase, -Level, -Cell, -Port, -Motor” Electrical Drives and Renewable Energy Systems
Efficiency and Performance Optimization of State-of-the-Art “Multi-Phase, -Level, -Cell, -Port, -Motor” Electrical Drives and Renewable Energy Systems Open
This Special Issue was intended to consolidate the most recent advances in the field of power electronics for electric drives and renewable energy sources [...]
View article: Dynamic Modeling and Control of BDFRG under Unbalanced Grid Conditions
Dynamic Modeling and Control of BDFRG under Unbalanced Grid Conditions Open
The Brushless Doubly-Fed Reluctance Generator (BDFRG) is a potential alternative to the Doubly Fed Induction Generator (DFIG) in wind power applications owing to its reasonable cost, competitive performance, and high reliability. In compar…
View article: Comparative Study of Classical and MPC Control for Single-Phase MMC Based on V-HIL Simulations
Comparative Study of Classical and MPC Control for Single-Phase MMC Based on V-HIL Simulations Open
The operation of single-phase Modular Multilevel Converter (MMC) is analyzed in the paper. A mathematical model of the converter is developed and described, based on which the structure and selection of parameters for Classical Control and…
View article: Analytical and Simulation Fair Comparison of Three Level Si IGBT Based NPC Topologies and Two Level SiC MOSFET Based Topology for High Speed Drives
Analytical and Simulation Fair Comparison of Three Level Si IGBT Based NPC Topologies and Two Level SiC MOSFET Based Topology for High Speed Drives Open
Wide bandgap (WBG) power devices such as silicon carbide (SiC) can viably supply high speed electrical drives, due to their capability to increase efficiency and reduce the size of the power converters. On the other hand, high frequency op…
View article: Speed Controlled Belt Conveyors: Drives and Mechanical Considerations
Speed Controlled Belt Conveyors: Drives and Mechanical Considerations Open
The paper presents variable speed belt conveyor system where the reference speed is changed in order to achieve improved energy efficiency of operation. The recorded measurements show that belt tension varies within the same limits as unde…