Title :
Voltage improvement and harmonic compensation in stand-alone inverter-based distributed generation using RS-HNSPWM
Author :
Khodsuz, Masume ; Sheikholeslami, Abdolreza
Author_Institution :
Dept. of Electr. & Comput. Eng., Noshirvani Babol Univ. of Technol., Babol, Iran
Abstract :
This paper presents a control scheme based on random switching hybrid nonsinusoidal PWM (RS-HNSPWM) in stand-alone inverter-based distributed generation source to regulate and produce a sinusoidal voltage at the point of common coupling (PCC). Due to the nonlinear currents, drown by the nonlinear loads, VPCC becomes nonsinusoidal. The proposed controller takes VPCC as an input and generates a nonsinusoidal reference waveform (Vref) for firing the full bridge inverter switches with RS-HNSPWM method. The simulation results show that the proposed control method has the features such as: the thermal equalization in switches, very low THD and decreasing harmonic components at the VPCC.
Keywords :
PWM invertors; distributed power generation; harmonic distortion; PCC; RS-HNSPWM inverter; THD; full bridge inverter switches; harmonic compensation; inverter-based distributed generation; nonlinear currents; nonlinear loads; nonsinusoidal reference waveform; point of common coupling; random switching hybrid nonsinusoidal PWM inverter; sinusoidal voltage; thermal equalization; voltage improvement; Distributed control; Distributed power generation; Impedance; Intelligent transportation systems; Power system harmonics; Pulse width modulation; Pulse width modulation inverters; Switches; Voltage control; Wind energy generation; Distributed generation (DG); harmonic; point of common coupling (PCC); random switching hybrid nonsinusoidal PWM (RS-HNSPWM);
Conference_Titel :
Power Electronics and Intelligent Transportation System (PEITS), 2009 2nd International Conference on
Conference_Location :
Shenzhen
Print_ISBN :
978-1-4244-4544-8
DOI :
10.1109/PEITS.2009.5406966