Bid Modification Attack in Smart Grid for Monetary Benefits

In the quest for reliability and automation, the entire smart grid operation and control depends on the communication infrastructure. This reliance on the information and communication technologies has also opened up possibilities of cyber intrusions. In this paper, a bid modification attack on the power exchange server is presented with the aim of gaining monetary benefits in the real-time power market. The attack is modelled for PJM 5 bus and IEEE 14 bus test system. The minimum number of load bids required to be changed for launching the attack is obtained and impacts on real time locational marginal prices (LMPs) are presented.