Performance Scrutiny of Two Control Schemes Based on DSM and HB in Active Power Filter
Author(s):
Abstract:
This paper presents a comparative analysis between two current control strategies, constant source power and generalized Fryze current, used in active power filter (APF) applications having three different modulation methods. The hysteresis band (HB) and first-order Delta-Sigma modulation (DSM) as well as the second-order DSM is applied. The study has been applied to a three-phase system with different rectifier as a load of power system. The power section of the active power filter is viewed as an analogue to digital converter (ADC), then as a result a three-phase shunt active filter modulator controller which uses Delta-Sigma analogue to digital converter is presented to improve modulator performance. Simulation results show that by using the first and second order Delta-Sigma control strategies, total harmonic distortion (THD) can be significantly decreased. Moreover, active filter based on the second-order DSM with constant source power has better performance and provides lower source current THD.
Language:
English
Published:
Journal of Operation and Automation in Power Engineering, Volume:2 Issue: 2, Summer - Autumn 2014
Pages:
103 to 112
https://www.magiran.com/p1344509
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