Loss-of-excitation protection and underexcitation controls correlation for synchronous generators in a real time digital simulator

Power Hardware-In-The-Loop Emulation of a Brushless Dc Motor

“…CHIL is used in the industry to test the control, communication or operation logic of controllers such as PLCs or intelligent electric devices (IEDs) such as protection relays. A typical example of the use of the CHIL testing method is during a factory acceptance test (FAT) where a secondary injection set is used to test the protective relaying control of a switchboard before being deployed on-site [6]- [8]. PHIL on the other hand is a relatively new concept.…”

Review of loss of excitation protection setting and coordination to the generator capacity curve

“…The loss of excitation in synchronous machines is a very active research topic, some new techniques, as the calculation of the internal voltage [3], adaptive Mho relays [4], setting-free relay [5] and other new developments [6]- [8].…”