Commenced in January 2007
Frequency: Monthly
Edition: International
Paper Count: 2

Hysteresis Current Controller Related Publications

2 Fuzzy Logic Controller Based Shunt Active Filter with Different MFs for Current Harmonics Elimination

Authors: Gaurav Kumar, Suresh Mikkili, Shreyash Sinai Kunde, Siddhang Tendulkar, Shiv Prakash Gupta

Abstract:

One of the major power quality concerns in modern times is the problem of current harmonics. The current harmonics is caused due to the increase in non-linear loads which is largely dominated by power electronics devices. The Shunt active filtering is one of the best solutions for mitigating current harmonics. This paper describes a fuzzy logic controller based (FLC) based three Phase Shunt active Filter to achieve low current harmonic distortion (THD) and Reactive power compensation. The performance of fuzzy logic controller is analysed under both balanced sinusoidal and unbalanced sinusoidal source condition. The above controller serves the purpose of maintaining DC Capacitor Voltage constant. The proposed shunt active filter uses hysteresis current controller for current control of IGBT based PWM inverter. The simulation results of model in Simulink MATLAB reveals satisfying results.

Keywords: Fuzzy Logic Controller, shunt active filter, current harmonics, Hysteresis Current Controller

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1 Optimal Switching Strategies for Tracking of Currents of Voltage Source Converters

Authors: M. A. Sadrnia, R. Oloomi

Abstract:

This paper proposes a new optimal feedback controller for voltage source converters VSC's, for current regulated voltage source converters, which allows compensate the harmonics of current produced by nonlinear loads and load reactive power. The aim of the present paper is to describe a novel switching signal generation technique called optimal controller which guarantees that the injected currents follow the reference currents determined by the compensation strategy, with the smallest possible tracking error and fixed switching frequency. It is compared with well-known hysteresis current controller HCC. The validity of presented method and its comparison with HCC is studied through simulation results.

Keywords: voltage source converter, Hysteresis Current Controller, Optimal Controller, Switching pattern

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