Title :
Observed voltage spikes on fielded photovoltaic arrays caused by startup and shutdown switching of inverters
Author :
Vangala, P. ; Ropp, M. ; Haggerty, K. ; Lynn, K. ; Wilson, W.
Author_Institution :
South Dakota State University, Brookings, USA, 57007
Abstract :
Investigators at South Dakota State University and the Florida Solar Energy Center installed a high-speed datalogger on a high-voltage PV series string as part of an experiment to quantify lightning-induced transients in PV arrays. However, during the measurement period, an unexpected result was observed: large voltage spikes appeared at the PV array terminals during the inverter´s morning start-up and evening shut-down procedures. This paper describes those observations, probable causes and effects, and mitigation options.
Keywords :
Inverters; Lightning; Optical arrays; Photovoltaic systems; Power electronics; Probes; Relays; Solar energy; Solar power generation; Voltage control;
Conference_Titel :
Photovoltaic Specialists Conference, 2008. PVSC '08. 33rd IEEE
Conference_Location :
San Diego, CA, USA
Print_ISBN :
978-1-4244-1640-0
Electronic_ISBN :
0160-8371
DOI :
10.1109/PVSC.2008.4922844