Transformer based voltage sag generator to test renewable energy systems during grid faults in the laboratory




FREE-DOWNLOAD C Wessels, T Wehrend… – EPE Wind Energy Chapter …, 2010 –
A transformer based voltage sag generator to test renewable energy systems is presented. Design
considerations concerning overvoltages and overcurrents during switching action are
adressed. Mea- surement results of a 30 kW laboratory prototype testing a line side PWM