Title :
Power loss analysis for single phase grid-connected PV inverters
Author :
Nge, Chee Lim ; Midtgård, Ole-Morten ; Norum, Lars ; Sætre, Tor Oskar
Author_Institution :
Fac. of Eng. & Sci., Univ. of Agder, Grimstad, Norway
Abstract :
This paper presents a method for power loss analysis applied on single-phase grid-connected PV inverter. The often neglected current ripple effects are included in power device switching and conduction losses. The relationships amongst component losses, output inductance, switching frequency and dc-link voltage are investigated. It is shown that current ripple effect is important to power loss analysis due to varying irradiation. The closed form solutions of component losses are proposed and verified with SPICE simulation results.
Keywords :
SPICE; invertors; photovoltaic power systems; power grids; SPICE simulation; component losses; conduction losses; dc-link voltage; output inductance; power device switching; power loss analysis; single phase grid-connected PV inverters; switching frequency; Inductance; Inductors; Inverters; Power engineering and energy; Power harmonic filters; Power systems; Thermal loading; Topology; Uninterruptible power systems; Voltage;
Conference_Titel :
Telecommunications Energy Conference, 2009. INTELEC 2009. 31st International
Conference_Location :
Incheon
Print_ISBN :
978-1-4244-2490-0
Electronic_ISBN :
978-1-4244-2491-7
DOI :
10.1109/INTLEC.2009.5352038
