An active synchronous detection method (ASDM) is presented to detect deception attacks on inverter controllers in microgrids without impeding system operations. First, microgrid control center generates specified small probing signals and inject them into controllers. The output signals are then obtained and compared with pre-determined values to locate infracted controller components. Test results show that ASDM can quickly and precisely detect various deception attacks in microgrids.
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Li et al. (2016) studied this question.