Title :
Design and implementation of Three Phase Three Level Shunt Active Power Filter for harmonic reduction
Author :
Sundaram, Elango ; Venugopal, Manikandan
Author_Institution :
Electr. & Electron. Eng. Dept., Coimbatore Inst. of Technol., Coimbatore, India
Abstract :
This paper presents simulation and hardware implementation of Three Phase Three Level Shunt Active Power Filter to mitigate the supply current harmonics and inject the required reactive power to non-linear loads. The standard operating principle of shunt active filter is to inject current harmonics into the point of common coupling. This scheme consists of three phase three level diode clamped multilevel inverter which can be used to reduce the source current harmonics. The proposed pulse width modulation (PWM) scheme generates the inverter leg switching times, from the sampled reference phase voltage amplitudes and centres the switching times for the middle vectors, in a sampling interval, as in the case of conventional space vector PWM (SVPWM). Effectiveness of the system is verified by the experimental results obtained from the prototype model.
Keywords :
active filters; invertors; power filters; power system harmonics; reactive power; common coupling point; harmonic reduction; inverter leg switching times; nonlinear loads; pulse width modulation scheme; reactive power; reference phase voltage amplitudes; source current harmonics; space vector PWM; supply current harmonics; three phase three level diode clamped multilevel inverter; three phase three level shunt active power filter; Active filters; Harmonic analysis; Inverters; Power filters; Power harmonic filters; Reactive power; Voltage control; Harminics; Multilevel Inverter; Nonlinear loads; SVPWM; Shunt Active Power Filter;
Conference_Titel :
Industrial Electronics Society, IECON 2014 - 40th Annual Conference of the IEEE
DOI :
10.1109/IECON.2014.7048681