Title :
An improved approach to reduce harmonics in the utility interface of wind, photovoltaic and fuel cell power systems
Author :
El-Tamaly, Ali M. ; Enjeti, P.N. ; El-Tamaly, H.H.
Author_Institution :
Power Electron. & Power Quality Lab., Texas A&M Univ., College Station, TX, USA
fDate :
6/22/1905 12:00:00 AM
Abstract :
In this paper, an improved approach to reduce harmonics in the utility interface of wind, photovoltaic and fuel cells power systems is presented. The approach is based on circulating third harmonic current injection to reduce utility line current harmonics in SCR converters. In this paper, a new injected current shape is computed from analysis to achieve sinusoidal utility line currents. A controllable single switch boost converter connected in shunt is employed to circulate the new injected current shape. A method to implement the proposed approach under varying load conditions is shown. Analysis, design, limitations, simulation and experimental result are presented
Keywords :
electricity supply industry; fuel cell power plants; harmonic distortion; harmonics suppression; photovoltaic power systems; power conversion harmonics; power system interconnection; thyristor convertors; wind power plants; SCR converters; circulating third harmonic current injection; controllable single-switch boost converter; fuel cells power systems; photovoltaic power systems; sinusoidal utility line currents; utility interface harmonics reduction; utility line current harmonics; varying load conditions; wind power systems; Computational modeling; Fuel cells; Photovoltaic systems; Power system analysis computing; Power system harmonics; Shape control; Solar power generation; Switches; Switching converters; Thyristors;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 2000. APEC 2000. Fifteenth Annual IEEE
Conference_Location :
New Orleans, LA
Print_ISBN :
0-7803-5864-3
DOI :
10.1109/APEC.2000.822819
