Title: PERFORMANCE EVALUATION OF ADJUSTABLE SPEED DRIVE USING HCC BASED SINGLE-PHASE HALF-BRIDGE APF
Abstract: In recent years with the development of power semiconductor technology power electronics based devices such as static var compensators (SVCs), adjustable speed drives (ASDs) and uninterruptible power supplies (UPSs) are widely employed in various applications. Because of their nonlinear V-I characteristics these devices draw current with harmonic content and reactive power from AC mains. Current harmonics drawn by nonlinear loads disturb the waveform of the voltage at the point of common coupling (PCC) and lead to the voltage harmonics that the other linear loads and sensitive electronic equipments have to deal with. Conventionally, to reduce harmonics passive LC filters and to improve power factor of the ac loads capacitor banks were used. However these solutions have the demerits of large size and weight, fixed compensation design, increased operating losses and risk of resonance occurrence. Among the active power filter configurations, shunt APF is the most important and most widely used in industrial processes. The main duty of a shunt APF is to inject into the system a compensating current (active filter current) so as to make the source current sinusoidal and in phase with the source voltage. This paper presents a hysteresis current-control (HCC) strategy for a single-phase half-bridge shunt active power filter. The half-bridge topology employs two switching devices and two capacitors connected in series. The proposed concept is verified by using matlab/simulink software and the corresponding results are presented.
Publication Year: 2014
Publication Date: 2014-10-27
Language: en
Type: article
Access and Citation
AI Researcher Chatbot
Get quick answers to your questions about the article from our AI researcher chatbot