Classical Control for Unequal DC Sources Five-Level Inverter-Based SHE Technique

Mahrous Ahmed, Essam Hendawi, Basem Alamri, Mosleh Alharthi, Farhan Salem, Mohamed Orabi, Saad Mekhilef and Sherif Ghoneim
Additional contact information
Mahrous Ahmed: Electrical Engineering Department, College of Engineering, Taif University, Taif 21974, Saudi Arabia
Essam Hendawi: Electrical Engineering Department, College of Engineering, Taif University, Taif 21974, Saudi Arabia
Basem Alamri: Electrical Engineering Department, College of Engineering, Taif University, Taif 21974, Saudi Arabia
Mosleh Alharthi: Electrical Engineering Department, College of Engineering, Taif University, Taif 21974, Saudi Arabia
Farhan Salem: Electrical Engineering Department, College of Engineering, Taif University, Taif 21974, Saudi Arabia
Mohamed Orabi: APEARC, Faculty of Engineering, Aswan University, Aswan 81542, Egypt
Saad Mekhilef: Department of Electrical Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia
Sherif Ghoneim: Electrical Engineering Department, College of Engineering, Taif University, Taif 21974, Saudi Arabia

Energies, 2020, vol. 13, issue 18, 1-15

Abstract: This study proposes a classical control algorithm for solving the transcendental set of equations for the unequal DC sources of five-level multilevel inverters (MLIs). Such sources can be generated from renewable energy sources. Two DC sources with different values are used to produce an output voltage with five levels. Then, a set of two transcendental equations is formulated with two targeted functions to control the fundamental component and cancel the stipulated single harmonic order. The proposed solution uses a simple classical proportional control with two loops to generate two switching angles. The first switching angle is assigned with an initial value, whereas the second one is calculated from the inner loop. The outer loop is used to cancel the specified harmonic by sending the error signal to the proposed proportional control that tunes the switching angles. The proposed algorithm is easy, fast, and accurate, and has a wide-range solution in terms of modulation index ( MI ) and input DC source ratio ( x = V 1 V 2 ≤ 1 ). The proposed algorithm is tested for a wide range of MI and x to verify its feasibility. Moreover, several simulation and laboratory tests are presented to further validate the applicability of the proposed approach.

Keywords: DC–AC power conversion; multilevel inverters (MLIs); renewable energy sources; selective harmonic elimination (SHE); total harmonic distortion; unequal DC sources (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/1996-1073/13/18/4715/pdf (application/pdf)
https://www.mdpi.com/1996-1073/13/18/4715/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:13:y:2020:i:18:p:4715-:d:411495

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().