Volume 11, Issue 3 (September 2015)                   IJEEE 2015, 11(3): 276-283 | Back to browse issues page

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heidarzad moghaddam H, salimi M. Applicability improvement and hysteresis current control method simplification in shunt active filters . IJEEE 2015; 11 (3) :276-283
URL: http://ijeee.iust.ac.ir/article-1-769-en.html
Applicability improvement and hysteresis current control method simplification in shunt active filters
H. Heidarzad moghaddam , M. Salimi
Abstract:   (5464 Views)

Hysteresis current control method is vastly used in PWM inverters because of simplicity in performance, fast control response and good ability in limiting peak current. However, switching frequency in hysteresis current control method with fixed bandwidth has large variation during a cycle and therefore causes non-optimal current ripple generation in output current. One of basic problems in implementing hysteresis current control is its variable switching frequency that causes sound noise and increase in inverter losses and also high frequency current components injection to the source current. In this paper, in addition to the calculation of variable hysteresis bandwidth equation that fixes frequency switching, also other problems can be solved by removing the derivative part. Here, a shunt active filter has been used for removing the current harmonic components generated by non-linear loads. Proposed method is simple to perform and reliable, and also has been simulated in MATHLAB software environment

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Keywords: Shunt Active Filter , Harmonic Spectrum , Hysteresis Bandwidth , Simplified Hysteresis Bandwidth , Optimized Hysteresis Bandwidth
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Type of Study: Research Paper | Subject: HVDC and FACTS
Received: 2015/03/08 | Revised: 2016/04/24 | Accepted: 2015/10/20
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