Review and Simulation of Fixed and Adaptive Hysteresis Current Control Considering Switching Losses and High-Frequency HarmonicsReportar como inadecuado




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Advances in Power ElectronicsVolume 2011 2011, Article ID 397872, 6 pages

Review Article

Department of Electrical Engineering, Islamic Azad University, Sari Branch, Sari, Iran

Department of Electrical Engineering, Babol University of Technology, Babol, Iran

Department of Electrical Engineering, K. N. Toosi University of Technology, Tehran, Iran

Received 1 February 2011; Accepted 2 May 2011

Academic Editor: Francesco Profumo

Copyright © 2011 Hani Vahedi et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Hysteresis Current Control HCC is widely used due to its simplicity in implementation, fast and accurate response. However, the main issue is its variable switching frequency which leads to extraswitching losses and injecting high-frequency harmonics into the system current. To solve this problem, adaptive hysteresis current control AHCC has been introduced which produces hysteresis bandwidth which instantaneously results in smoother and constant switching frequency. In this paper the instantaneous power theory is used to extract the harmonic components of system current. Then fixed-band hysteresis current control is explained. Because of fixed-band variable frequency disadvantages, the adaptive hysteresis current control is explained that leads to fixing the switching frequency and reducing the high-frequency components in source current waveform. Due to these advantages of AHCC, the switching frequency and switching losses will be diminished appropriately. Some simulations are done in MATLAB-Simulink. The Fourier Transform and THD results of source and load currents and the instantaneous switching frequency diagram are discussed to prove the efficiency of this method. The Fourier Transform and THD results of source and load currents are discussed to prove the validity of this method.





Autor: Hani Vahedi, Abdolreza Sheikholeslami, Mohammad Tavakoli Bina, and Mahmood Vahedi

Fuente: https://www.hindawi.com/



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