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Please use this identifier to cite or link to this item: http://hdl.handle.net/2080/1219

Title: Hysteresis Controller and Delta Modulator- Two Viable Schemes for Current Controlled Voltage Source Inverter
Authors: Reddy, B V
Chitti Babu, B
Keywords: hysteresis current controller
delta modulator
voltage source inverter (VSI)
total harmonic distortion (THD)
pulse width modulation (PWM)
switching frequency
Issue Date: 2009
Citation: IEEE International Conference on Technical Postgraduates 2009,14-15/Dec/2009,Kuala Lumpur,Malaysia
Abstract: Current-controlled pulse width modulated voltage source inverters are most widely used in high performance AC drive systems, because they provides high dynamic response. This paper presents a comparative study between the hysteresis and delta modulated current controllers for three-phase voltage source inverter. The hysteresis controller provides excellent dynamic performance because it acts quickly. The integrator in the delta modulated PWM inverters acts as a low-pass filter for harmonics. Delta modulation technique have ability to optimize (harmonic minimization) pulse width modulated (PWM) inverter waveforms on-line without conventional optimization processes, like selective harmonic elimination or harmonic weighting techniques. A comparison has been made in terms of THD level at the three-phase load current, current error minimization and switching frequency. The simulation study has been carried out with the help of MATLAB Simulink environment and the performance ...
URI: http://hdl.handle.net/2080/1219
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