Title :
High performance DPC for PWM converters
Author :
Monfared, Mohammad ; Rastegar, Hasan ; Kojabadi, Hossein Madadi
Author_Institution :
Dept. of Electr. Eng., Amirkabir Univ. of Technol., Tehran, Iran
Abstract :
In this paper, direct power control (DPC) method for voltage source converters is described, then a high performance constant switching frequency DPC technique for three-phase pulse-width-modulated (PWM) converters is developed. Hysteresis comparators and switching table are replaced by a PWM modulator and the required converter voltage in each sampling period is directly calculated based on reference and measured values of reactive and active powers, system parameters, and the measured voltage of AC source. Then, the reference voltage is synthesized by the PWM block. In addition to a constant switching frequency, this method lets low sampling frequencies. Simulation results validate the superiority of the suggested DPC.
Keywords :
PWM power convertors; power control; voltage regulators; PWM converter; direct power control method; high performance constant switching frequency DPC technique; reference voltage synthesis; three-phase pulse width modulated converter; voltage source converter; Current control; Hysteresis; Power control; Pulse width modulation; Pulse width modulation converters; Reactive power control; Sampling methods; Switching converters; Switching frequency; Voltage control;
Conference_Titel :
Electrical and Electronics Engineering, 2009. ELECO 2009. International Conference on
Conference_Location :
Bursa
Print_ISBN :
978-1-4244-5106-7
Electronic_ISBN :
978-9944-89-818-8
