Pristupačnost
- Show CROSBI records
- Awards and acknowledgments
- Biography
- Teaching
- Research areas
- Professional memberships
- Personal data
- List of select projects
- Past employments
Sensorless Flying Start of Synchronous Reluctance Drive Based on Opposite Voltage Vector Pulses
Thermal Modelling of Multi-Layer Inverter PCB DC Link Using Orthogonal Current Excitation and Scaling Laws in 3D FEA
Model Predictive Control with Variable Switching Time Instants for Synchronous Reluctance Machines Using Stator Current Gradients
Voltage Sensorless Synchronization of a Grid-Side Converter Based on a Discontinuous Operating Mode and a Sliding Mode Observer
Fixed Switching Frequency Direct Model Predictive Control of Synchronous Reluctance Machines Based on Stator Flux Gradients
Flying Start of a Synchronous Reluctance Machine Based on Opposite Active Voltage Pulses
Flying Start of a Synchronous Reluctance Machine Based on Opposite Active Voltage Pulses
Harmonic distortions of currents and voltages of the Central Wastewater Treatment Plant of the City of Zagreb
Flying Start of a Synchronous Reluctance Machine Based on Opposite Active Voltage Pulses
Simulation of the operation of a permanent magnet synchronous generator on a power converter based on a saturated model
Framework for Sensorless Control and Flying Start of a Permanent Magnet Generator Based on a Sliding Mode Observer
Reduction of current harmonic distortions using an active filter
Sizing of Supercapacitor-based Energy Storage System for Elevator Applications
Design Challenges of Bidirectional Interleaved DC-DC Converter for Energy Storage Systems in Elevator Applications
Sensorless Synchronization Method For a Grid-Side Converter With an LCL Filter Based On a Sliding Mode Observer and Discontinuous Operating Mode
Supercapacitor-Based Energy Storage in Elevators to Improve Energy Efficiency of Buildings
DC/DC Converter Topologies for Elevator Energy Storage Systems Based on Supercapacitors
Effect of Harmonics on Ferroresonance in Low Voltage Power Factor Correction System—A Case Study
Sliding Mode Observers Combined with Locked Loop Techniques for Sensorless Vector Controlled Synchronous Reluctance Machines
Regenerative Energy Potential of Roped Elevator Systems - A Case Study
Electric Power Quantities in the Presence of Harmonics - A Case Study
Analysis of Regenerative Cycles and Energy Efficiency of Regenerative Elevators
Functional testing of electrical energy measurement system in Selk d.d.
Harmonic distortion analysis for TS6 transformer station of the plant Vetropack Straža d.d.
Overview of the permitted levels of current and voltage harmonic distortion in the medium voltage network in the Republic of Croatia
Harmonic distortions in transformer stations TS Kuljani and TS Uncani I
Current and voltage harmonic analysis in Kanuf Insulation plant after installation of active filter
Flying Start and Continuous Operation of a Permanent Magnet Wind Generator Based on Discontinuous Currents, Discrete Second-Order Sliding-Mode Observer and Phase-Locked Loop
Reactive power in nonlinear electrical networks
Permanent Magnet Generator q-axis Inductance Adaptation Using High-Frequency Signal Injection
Current and voltage harmonic analysis in Kanuf Insulation plant
Interior Permanent Magnet Wind Generator Torque Estimation Considering Low-Pass Filter Phase Shift Compensation
Flying Start of a Permanent Magnet Wind Power Generator Based on a Discontinuous Converter Operation Mode and a Phase-Locked Loop
Flying start and sensorless control of permanent magnet wind power generator using induced voltage measurement and phase-locked loop
Practical Approach for Parameter Determinations of Interior Permanent Magnet Generator
Torque Control of a Wind Power Permanent Magnet Generator in a Flux Weakening Region
The "Vera Johanides" Young Scientist Award, Croatian Academy of Engineering, 2022.
Biography
Luka Pravica was born in Osijek, Croatia, in 1988. He received the B.Sc., M.Sc. and Ph.D. degrees in Electrical Engineering from the University of Zagreb, Croatia, in 2010, 2012 and 2022, respectively. From 2012 to 2016, he was Electrical Drives Specialist with the Danieli Systec, Croatia, for which he commissioned seven hot rolling mills and three induction heating plants. He is working Faculty of Electrical Engineering and Computing, University of Zagreb since 2016 where currently he is working as an Assistant professor in the Department of Electric Machines, Drives and Automation. His research interests focus on power electronics, electric drive control, and industrial automation. He is member of the IEEE, and vice president of the Industry Applications Chapter of the IEEE Croatia Section.
Teaching
University undergraduate
- Fundamentals of Power Electronics (Lecturers, Laboratory exercises, Lecturers, Laboratory exercises, Lecturers, Laboratory exercises)
- Fundamentals of Power Electronics (Lecturers, Lecturers)
- Project E (Lecturers)
- Fundamentals of Electric Machine Control (Laboratory exercises)
University graduate
- Control of Electric Machines (Lecturer in charge, Laboratory exercises)
- Control of Power Converters (Lecturers)
- Electronic Power Converters (Lecturers, Laboratory exercises)
- Master Project (Lecturers)
- Laboratory of Electrical Engineering Systems and Technology 2 (Laboratory exercises)
- Microprocessor Based Control of Electric Machines (Laboratory exercises)
Competences
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Control systems
Power generation control Closed loop systems Control design Control engineering Microcontrollers Servosystems Phase locked loops Nonlinear control systems Open loop systems PI control Sensorless control Sliding mode control -
Education
Electrical engineering education Industrial training Vocational training -
IEEE organization
IEEE Conference activities IEEE Student activities -
Industrial electronics
Process control Continuous production -
Industry applications
Steel industry Motor drives Variable speed drives Electric machines AC machines Generators Permanent magnet machines Rotating machines -
Power electronics
AC-AC converters DC-AC power converters Power conversion AC-AC converters DC-AC power converters Pulse width modulation converters Voltage-source converters -
Power engineering and energy
Wave power Wind energy Wind energy generation Industrial power systems Power system harmonics Power harmonic filters -
Systems engineering and theory
Variable structure systems -
Circuits and systems
Active filters Harmonic filters
Professional memberships
- IEEE Young Professionals
- IEEE Membership
- IEEE Industrial Electronics Society
- IEEE Industry Applications Society
-
HRO CIGRÉ
Personal data
List of select projects
Researcher, Development of a smart modular elevator drive system for increasing the energy efficiency of a building (EULIFT), 1.10.2020. – 1.4.2023., European Regional Development Fund, project leader: Izv. prof. dr. sc. Martina Kutija
Researcher, Innovative solution for cyber security management of industrial plant and process automation systems (cyberAUT), 17.8.2020. – 17.8.2023., European Regional Development Fund, project leader: Prof. dr. sc. Damir Sumina
Researcher, System development for optimizing electricity consumption in data centers (ENEDAT), 17.8.2020. – 17.8.2023., European Regional Development Fund, project leader: Prof. dr. sc. Igor Erceg
Researcher, Development of technology for connecting components of control electrical cabinets using laminated conductors (LAMCAB), 1.6.2020. – 1.6.2023., European Regional Development Fundj, project leader: Prof. dr. sc. Igor Erceg
Researcher, Synchronous reluctance generators for micro hydropower plants (HYDREL), 1.11.2018. –31.10.2022., Croatian Science Foundation, project leader: Prod. dr. sc. Stjepan Stipetić
Researcher, Development of Advanced Sensorless Control of Permanent Magnet Generator for Improving Energy Efficiency (PMGEFC)“, 1.9.2014. – 30.4.2018., Croatian Science Foundation, project leader: Prof. dr. sc. Damir Sumina
Past employments
After completing his graduate studies, Luka Pravica worked from 2012 to 2016 at Danieli Systec Ltd. as a specialist in electric drives, where he was responsible for commissioning electric drive systems and adjusting VFD parameters according to process requirements. Through the commissioning of numerous factories and production lines, he gained extensive professional experience, which he used to develop a new application for Gefran VFD and to improve both the hardware and software design of Gefran drives. His work in the industry provided him with expert technical knowledge, enabling him to successfully address numerous challenges in the design and implementation of new factories and production lines. He participated in the correction and execution of electric drive projects and independently commissioned a total of seven new factories and production lines for manufacturing long steel products of small, medium, and large cross-sections, reinforced steel bars, steel wire, and iron melting facilities for semi-finished products. Starting in 2014, he was part of the Power Systems team at Danieli Automation, where he conducted power quality analysis studies, enhanced existing drives, and contributed to the development and implementation of steel induction heating systems. He was involved in project corrections and execution in electrical engineering, and independently commissioned three new steel induction heating systems with capacities of 20 MW, 10 MW, and 6 MW, during which he developed a final software solution for the water cooling system and power controller for the induction heaters.