REAL TIME CALCULATION OF SHEM ANGLES BY METAHEURISTIC ALGORITHMS FOR VARIABLE FREQUENCY MOTOR DRIVES

Download

REAL TIME CALCULATION OF SHEM ANGLES BY METAHEURISTIC ALGORITHMS FOR VARIABLE FREQUENCY MOTOR DRIVES.pdf

Date

2021-9-23

Author

NALÇACI, Gamze

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

579
views

379
downloads

Harris hawks optimization (HHO) has been used to optimize a voltage source inverter's selective harmonic elimination method (SHEM) for light rail transportation. The primary goal of SHEM's pulse-width modulation strategy is to eliminate low-order harmonics by solving nonlinear equations while maintaining the required magnitude of the fundamental component. When applied to a two-level, three-phase inverter, the HHO algorithm aims to solve the associated nonlinear equations with a high degree of accuracy and probability of convergence, outperforming particle swarm optimization (PSO), grey wolf optimization (GWO), and whale optimization algorithms (WOA). SHEM simulations using MATLAB / Simulink are performed on a 125 kW traction motor drive platform for various SHEM angles in order to compare its performance to SHEM using SPWM and SVM techniques. Experiments conducted on a laboratory-scale physical simulator of a light rail transportation system revealed remarkable findings regarding the effect of the DC link voltage magnitude on the performance of the associated traction motor drive. In light of the various fundamental frequency operations, and the operating DC link voltages, a general assessment of the SHEM has been made in light of its application to a light rail traction motor drive. Additionally, the calculated SHEM switching angles using PSO, WOA, GWO, and HHO in compute unified device architecture (CUDA) are compared on two graphics processing units (GPUs), with the results indicating that HHO calculates faster than the other metaheuristic methods for real-time applications.

Subject Keywords

Gerçek zamanlı hesaplama, metasezgisel algoritmalar, motor sürücüler, seçmeli harmonik eliminasyonu, grafik işleme ünitesi

URI

https://hdl.handle.net/11511/94217

Collections

Graduate School of Natural and Applied Sciences, Thesis

Suggestions

OpenMETU
Core

Selective Harmonic Elimination for Variable Frequency Traction Motor Drives Using Harris Hawks Optimization Nalçacı, Gamze; Yildirim, Dogan; ÇADIRCI, IŞIK; Ermiş, Muammer (2022-07-01) In this article, Harris hawks' optimization (HHO) for selective harmonic elimination method (SHEM) of a voltage source inverter has been applied to a traction motor drive for light rail transportation. The main objective of SHEM's pulsewidth modulation (PWM) strategy is to remove the low-order harmonics by solving nonlinear equations while satisfying the required fundamental component's magnitude. The HHO applied in this article to a two-level, three-phase inverter aims at solving the associated nonlinear e...
Exponential Smoothing of Multiple Reference Frame Components With GPUs for Real-Time Detection of Time-Varying Harmonics and Interharmonics of EAF Currents Balouji, Ebrahim; Salor, Ozgul; Ermiş, Muammer (2018-11-01) In this research work, a multiple synchronous reference frame (MSRF)-based analysis method, used together with exponential smoothing (ES) to accurately obtain the time-varying harmonics and interharmonics of electric arc furnace (EAF) currents, is proposed. The proposed method has been implemented on NVIDIA Geforce GTX 960 graphics card for the parallel processing of all harmonics and interharmonics so that real-time processing of the EAF currents obtained from a measurement point of the electricity transmi...
Direct Calculation of Entropy Generation by Solving Reynolds-Averaged Entropy Transport Equation in an Air-Cooled Turbine Cascade Orhan, Omer Emre; Uzol, Oğuz (2012-06-15) This paper presents an implementation of directly solving Reynolds-Averaged Entropy Transport equation as a part of the CFD solution to predict entropy generation rates in a two-dimensional turbine blade stator section. The Reynolds Averaged Entropy Transport and the necessary modeling. equations are implemented to a commercial CFD solver as a User Defined Scalar (UDS). The results are compared with those obtained by post-processing the temperature and velocity fields obtained by solving full Navier-Stokes ...
Dynamic Model of a Three-Phase Full-Bridge Inverter-Fed Switched Reluctance Motor for Optimization Purposes Ilea, Dan; Radulescu, Mircea M.; Gillon, Frederic; Brochet, Pascal (2011-09-10) A Permeance Netvvork Analysis (PNA) of the dynamic behavior of a three phase Switched Reluctance Motor fed from a full-bridge inverter is presented. The non-linear effects due to global and local saturation are taken into consideration as well as the mutual coupling between phases. All permeances in the magnetic circuit are analytically computed in order to reduce the overall computation time in view of a future integration with an optimization process. The switching technique is also integrated within the ...
Optimum geometry for torque ripple minimization of switched reluctance motors Sahin, F; Ertan, HB; Leblebicioğlu, Mehmet Kemal (Emerald, 1995-12-01) This paper briefly describes an approach to determine the optimum magnetic circuit parameters to minimize low speed torque ripple for switched reluctance (SR) motors. For prediction of the torque ripple, normalized data obtained from field solution and a neural network approach is used. Comparison of experimental results with computations illustrates the accuracy of the method. The optimization method is briefly described and some results are presented.

Citation Formats

G. NALÇACI, “REAL TIME CALCULATION OF SHEM ANGLES BY METAHEURISTIC ALGORITHMS FOR VARIABLE FREQUENCY MOTOR DRIVES,” Ph.D. - Doctoral Program, Middle East Technical University, 2021.