All Stories

  1. Enhanced Control Strategy Based on Virtual Impedance Loops to Achieve the Sharing of Imbalance and Harmonic in 3-Phase 4-Wire Isolated Microgrids

    Article • IEEE Transactions on Power Delivery, August 2022, Institute of Electrical & Electronics Engineers (IEEE)

    PhD Helmo Kelis Morales Paredes

  2. Conservative Power Theory for Harmonic Voltage Responsibility Assignment

    Article • IEEE Latin America Transactions, March 2022, Institute of Electrical & Electronics Engineers (IEEE)

    PhD Helmo Kelis Morales Paredes

  3. Vector Control Applied to Mitigate the Electromagnetic Torque Ripple in Doubly Fed Induction Generator

    Article • IEEE Transactions on Energy Conversion, December 2021, Institute of Electrical & Electronics Engineers (IEEE)

    PhD Helmo Kelis Morales Paredes

  4. Enhanced health index for power transformers diagnosis

    Article • Engineering Failure Analysis, April 2021, Elsevier

    PhD Helmo Kelis Morales Paredes

  5. Comparative analysis of techniques for the limitation of compensation currents in multifunctional grid-tied inverters

    Article • International Journal of Electrical Power & Energy Systems, March 2021, Elsevier

    PhD Helmo Kelis Morales Paredes

  6. Modeling and Control of a Single-Phase Grid-Connected Inverter with LCL Filter

    Article • IEEE Latin America Transactions, February 2021, Institute of Electrical & Electronics Engineers (IEEE)

    PhD Helmo Kelis Morales Paredes

  7. Adaptive Power Factor Regulation Under Asymmetrical and Non-Sinusoidal Grid Condition With Distributed Energy Resource

    Article • IEEE Access, January 2021, Institute of Electrical & Electronics Engineers (IEEE)

    PhD Helmo Kelis Morales Paredes

  8. CPT-Based Multi-Objective Strategy for Power Quality Enhancement in Three-Phase Three-Wire Systems Under Distorted and Unbalanced Voltage Conditions

    Article • IEEE Access, January 2021, Institute of Electrical & Electronics Engineers (IEEE)

    PhD Helmo Kelis Morales Paredes

  9. COMPENSATION OF OSCILLATING INSTANTANEOUS POWER IN MODERN MICROGRIDS BASED ON THE CONSERVATIVE POWER THEORY

    Article • Eletrônica de Potência, August 2020, Associacao Brasileira de Eletronica de Potencia SOBRAEP

    PhD Helmo Kelis Morales Paredes

  10. 3-Phase Multi-Functional Grid-Tied Inverter for Compensation of Oscillating Instantaneous Power

    Article • December 2019, Institute of Electrical & Electronics Engineers (IEEE)

    PhD Helmo Kelis Morales Paredes

  11. Disturbing Load Classification Based on the Grey Relational Analysis Method and Load Performance Index

    Article • Journal of Control Automation and Electrical Systems, September 2019, Springer Science + Business Media

    PhD Helmo Kelis Morales Paredes

  12. Selective Power Conditioning in Two-Phase Three-Wire Systems Based on the Conservative Power Theory

    Article • September 2019, Institute of Electrical & Electronics Engineers (IEEE)

    PhD Helmo Kelis Morales Paredes

  13. Direct Connection of Supercapacitor–Battery Hybrid Storage System to the Grid-Tied Photovoltaic System

    Article • IEEE Transactions on Sustainable Energy, July 2019, Institute of Electrical & Electronics Engineers (IEEE)

    PhD Helmo Kelis Morales Paredes

  14. Enhanced Dual-Spectrum Line Interpolated FFT with Four-Term Minimal Sidelobe Cosine Window for Real-Time Harmonic Estimation in Synchrophasor Smart-Grid Technology

    Article • Electronics, February 2019, MDPI AG

    Dr Marcelo G Simoes , PhD Helmo Kelis Morales Paredes

  15. Intelligent Expert System for Power Quality Improvement Under Distorted and Unbalanced Conditions in Three-Phase AC Microgrids

    Article • IEEE Transactions on Smart Grid, November 2018, Institute of Electrical & Electronics Engineers (IEEE)

    PhD Helmo Kelis Morales Paredes

  16. Centralized Control Center Implementation for Synergistic Operation of Distributed Multifunctional Single-Phase Grid-Tie Inverters in a Microgrid

    Article • IEEE Industrial Electronics Magazine, October 2018, Institute of Electrical & Electronics Engineers (IEEE)

    PhD Helmo Kelis Morales Paredes, Jose Pomilio

  17. Trends and Constraints on Brazilian Photovoltaic Industry: Energy Policies, Interconnection Codes, and Equipment Certification

    Article • IEEE Transactions on Industry Applications, September 2018, Institute of Electrical & Electronics Engineers (IEEE)

    PhD Helmo Kelis Morales Paredes

  18. Currents' physical components (CPC): Case studies in single phase systems

    Article • May 2018, Institute of Electrical & Electronics Engineers (IEEE)

    PhD Helmo Kelis Morales Paredes

  19. Currents' physical components (CPC): Case studies in three phase systems

    Article • May 2018, Institute of Electrical & Electronics Engineers (IEEE)

    PhD Helmo Kelis Morales Paredes

  20. Proposal and implementation of a low cost single phase power meter

    Article • May 2018, Institute of Electrical & Electronics Engineers (IEEE)

    PhD Helmo Kelis Morales Paredes

  21. Synergistic operation between battery energy storage and photovoltaic generator systems to assist management of microgrids

    Article • IET Generation Transmission & Distribution, April 2018, the Institution of Engineering and Technology (the IET)

    Dr Marcelo G Simoes , Jose Pomilio, Dr Tiago Davi Curi Busarello, PhD Helmo Kelis Morales Paredes

  22. Simplified Small-Signal Model for Output Voltage Control of Asymmetric Cascaded H-Bridge Multilevel Inverter

    Article • IEEE Transactions on Power Electronics, April 2018, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Marcelo G Simoes , Dr Tiago Davi Curi Busarello, PhD Helmo Kelis Morales Paredes, Jose Pomilio

  23. Power Quality Study and Analysis of Different Arc Welding Machines

    Article • Journal of Control Automation and Electrical Systems, January 2018, Springer Science + Business Media

    PhD Helmo Kelis Morales Paredes

  24. Evaluation of Pattern Recognition Algorithms for Applications on Power Factor Compensation

    Article • Journal of Control Automation and Electrical Systems, December 2017, Springer Science + Business Media

    PhD Helmo Kelis Morales Paredes

  25. Interactive android application for education in AC-to-DC converters

    Article • November 2017, Institute of Electrical & Electronics Engineers (IEEE)

    PhD Helmo Kelis Morales Paredes

  26. Low cost digital module for demonstration of modulation strategies in DC-to-AC converters

    Article • November 2017, Institute of Electrical & Electronics Engineers (IEEE)

    PhD Helmo Kelis Morales Paredes

  27. Experimental Evaluation of a CPT-Based Four-Leg Active Power Compensator for Distributed Generation

    Article • IEEE Journal of Emerging and Selected Topics in Power Electronics, June 2017, Institute of Electrical & Electronics Engineers (IEEE)

    PhD Helmo Kelis Morales Paredes

  28. Multifunctional operation of current controlled VSI based on the harmonic content of PCC voltage

    Article • April 2017, Institute of Electrical & Electronics Engineers (IEEE)

    PhD Helmo Kelis Morales Paredes, Jose Pomilio

  29. PV Microgeneration Perspective in Brazil: Approaching Interconnection Procedures and Equipment Certification

    Article • March 2017, Institute of Electrical & Electronics Engineers (IEEE)

    PhD Helmo Kelis Morales Paredes

  30. Optimized Compensation of Unwanted Current Terms by AC Power Converters Under Generic Voltage Conditions

    Article • IEEE Industrial Electronics Magazine, December 2016, Institute of Electrical & Electronics Engineers (IEEE)

    PhD Helmo Kelis Morales Paredes, Jose Pomilio

  31. Strategy for flexible operation of three-phase converters

    Article • December 2016, Institute of Electrical & Electronics Engineers (IEEE)

    PhD Helmo Kelis Morales Paredes, Jose Pomilio

  32. Making use of virtual instrumentation for the evaluation of Std-1459 and FBD method in three-phase four-wire circuits

    Article • November 2016, Institute of Electrical & Electronics Engineers (IEEE)

    PhD Helmo Kelis Morales Paredes

  33. Control of Single-Phase Power Converters Connected to Low-Voltage Distorted Power Systems With Variable Compensation Objectives

    Article • IEEE Transactions on Power Electronics, March 2016, Institute of Electrical & Electronics Engineers (IEEE)

    PhD Helmo Kelis Morales Paredes, Jose Pomilio

  34. Flexible active compensation based on load conformity factors applied to non-sinusoidal and asymmetrical voltage conditions

    Article • IET Power Electronics, February 2016, the Institution of Engineering and Technology (the IET)

    Mr Danilo Iglesias Brandao, PhD Helmo Kelis Morales Paredes

  35. Applying conservative power theory for analyzing three-phase X-ray machine impact on distribution systems

    Article • Electric Power Systems Research, December 2015, Elsevier

    PhD Helmo Kelis Morales Paredes

  36. Strategy For Dynamic Saturation Of The Capacity Of Multifunctional Power Converters Connected To Utility Grid

    Article • Eletrônica de Potência, November 2015, Associacao Brasileira de Eletronica de Potencia SOBRAEP

    PhD Helmo Kelis Morales Paredes, Jose Pomilio

  37. About power factor and THDi in the smart micro-grid scenario

    Article • November 2015, Institute of Electrical & Electronics Engineers (IEEE)

    PhD Helmo Kelis Morales Paredes, Jose Pomilio

  38. Adaptive saturation system for grid-tied inverters in low voltage residential micro-grids

    Article • June 2015, Institute of Electrical & Electronics Engineers (IEEE)

    PhD Helmo Kelis Morales Paredes, Jose Pomilio

  39. Methodology for defining effective power factor compensation in three-phase systems

    Article • June 2015, Institute of Electrical & Electronics Engineers (IEEE)

    PhD Helmo Kelis Morales Paredes

  40. Optimized compensation based on linear programming applied to distributed electronic power processors

    Article • June 2015, Institute of Electrical & Electronics Engineers (IEEE)

    PhD Helmo Kelis Morales Paredes, Jose Pomilio

  41. Multifunctional Current Reference Generation Strategy for Grid-tied Power Electronic Converter

    Article • PRZEGLĄD ELEKTROTECHNICZNY, March 2015, Wydawnictwo SIGMA-NOT, sp. z.o.o.

    PhD Helmo Kelis Morales Paredes, Jose Pomilio

  42. Multi-task control strategy for grid-tied inverters based on conservative power theory

    Article • IET Renewable Power Generation, March 2015, the Institution of Engineering and Technology (the IET)

    Mr Danilo Iglesias Brandao, PhD Helmo Kelis Morales Paredes

  43. Electrical modelling and power quality analysis of three-phase X-ray apparatus

    Article • June 2014, Institute of Electrical & Electronics Engineers (IEEE)

    PhD Helmo Kelis Morales Paredes

  44. Electrical modelling and power quality analysis of three-phase induction furnace

    Article • May 2014, Institute of Electrical & Electronics Engineers (IEEE)

    PhD Helmo Kelis Morales Paredes

  45. Load Characterization and Revenue Metering Under Non-Sinusoidal and Asymmetrical Operation

    Article • IEEE Transactions on Instrumentation and Measurement, February 2014, Institute of Electrical & Electronics Engineers (IEEE)

    PhD Helmo Kelis Morales Paredes

  46. Flexible operation of grid-tied single-phase power converter

    Article • October 2013, Institute of Electrical & Electronics Engineers (IEEE)

    PhD Helmo Kelis Morales Paredes, Jose Pomilio

  47. Inverter control strategy for DG systems based on the Conservative power theory

    Article • September 2013, Institute of Electrical & Electronics Engineers (IEEE)

    PhD Helmo Kelis Morales Paredes

  48. Design of static VAr compensator using a general reactive energy definition

    Article • June 2013, Institute of Electrical & Electronics Engineers (IEEE)

    PhD Helmo Kelis Morales Paredes, Jose Pomilio

  49. Load analyser using conservative power theory

    Article • June 2013, Institute of Electrical & Electronics Engineers (IEEE)

    PhD Helmo Kelis Morales Paredes

  50. Decoupled Reference Generator for Shunt Active Filters Using the Conservative Power Theory

    Article • Journal of Control Automation and Electrical Systems, May 2013, Springer Science + Business Media

    PhD Helmo Kelis Morales Paredes

  51. Application of Conservative Power Theory to load and line characterization and revenue metering

    Article • September 2012, Institute of Electrical & Electronics Engineers (IEEE)

    PhD Helmo Kelis Morales Paredes

  52. Shunt Active Compensation Based On The Conservative Power Theory

    Article • Eletrônica de Potência, February 2012, Associacao Brasileira de Eletronica de Potencia SOBRAEP

    PhD Helmo Kelis Morales Paredes

  53. Selection of Voltage Referential from the Power Quality and Apparent Power Points of View

    Article • September 2011, IntechOpen

    PhD Helmo Kelis Morales Paredes

  54. Accountability in Smart Microgrids Based on Conservative Power Theory

    Article • IEEE Transactions on Instrumentation and Measurement, September 2011, Institute of Electrical & Electronics Engineers (IEEE)

    PhD Helmo Kelis Morales Paredes

  55. Shunt active compensation based on the Conservative Power Theory current's decomposition

    Article • September 2011, Institute of Electrical & Electronics Engineers (IEEE)

    PhD Helmo Kelis Morales Paredes

  56. Conservative Power Theory, a Framework to Approach Control and Accountability Issues in Smart Microgrids

    Article • IEEE Transactions on Power Electronics, March 2011, Institute of Electrical & Electronics Engineers (IEEE)

    PhD Helmo Kelis Morales Paredes

  57. Accountability and revenue metering in smart micro-grids

    Article • September 2010, Institute of Electrical & Electronics Engineers (IEEE)

    PhD Helmo Kelis Morales Paredes

  58. Application of Conservative Power Theory to cooperative control of distributed compensators in smart grids

    Article • June 2010, Institute of Electrical & Electronics Engineers (IEEE)

    PhD Helmo Kelis Morales Paredes

  59. Conservative Power Theory, sequence components and accountability in smart grids

    Article • June 2010, Institute of Electrical & Electronics Engineers (IEEE)

    PhD Helmo Kelis Morales Paredes

  60. Possible shunt compensation strategies based on Conservative Power Theory

    Article • June 2010, Institute of Electrical & Electronics Engineers (IEEE)

    PhD Helmo Kelis Morales Paredes

  61. Three-phase four-wire circuits interpretation by means of different power theories

    Article • June 2010, Institute of Electrical & Electronics Engineers (IEEE)

    PhD Helmo Kelis Morales Paredes

  62. Critical Evaluation Of Fbd, Pq And Cpt Current Decompositions For Four-wire Circuits

    Article • Eletrônica de Potência, November 2009, Associacao Brasileira de Eletronica de Potencia SOBRAEP

    PhD Helmo Kelis Morales Paredes

  63. Conservative power theory discussion and evaluation by means of virtual instrumentation

    Article • September 2009, Institute of Electrical & Electronics Engineers (IEEE)

    PhD Helmo Kelis Morales Paredes

  64. Critical evaluation of FBD, PQ and CPT current decompositions for four-wire circuits

    Article • September 2009, Institute of Electrical & Electronics Engineers (IEEE)

    PhD Helmo Kelis Morales Paredes

  65. Harmonic, reactive and unbalance compensation by means of CPT framework

    Article • September 2009, Institute of Electrical & Electronics Engineers (IEEE)

    PhD Helmo Kelis Morales Paredes

  66. A comparative analysis of FBD, PQ and CPT current decompositions — Part I: Three-phase, three-wire systems

    Article • June 2009, Institute of Electrical & Electronics Engineers (IEEE)

    PhD Helmo Kelis Morales Paredes

  67. A comparative analysis of FBD, PQ and CPT current decompositions — Part II: Three-phase four-wire systems

    Article • June 2009, Institute of Electrical & Electronics Engineers (IEEE)

    PhD Helmo Kelis Morales Paredes

  68. Selective current compensators based on the Conservative Power Theory

    Article • June 2009, Institute of Electrical & Electronics Engineers (IEEE)

    PhD Helmo Kelis Morales Paredes

  69. The Influence of Voltage Referential in Power Quality Indices Evaluation

    Article • IEEE Latin America Transactions, March 2008, Institute of Electrical & Electronics Engineers (IEEE)

    PhD Helmo Kelis Morales Paredes