Distributed energy resources (DER) Volt var optimization (VVO) Bad data detection (BDD) Malicious attacks
MAJUMDAR, A. ... et al, 2017. Centralized volt-var optimization strategy considering malicious attack on distributed energy resources control. IEEE Transactions on Sustainable Energy, doi:10.1109/TSTE.2017.2706965.
The adoption of information and communication technology (ICT) based centralized volt-var control (VVC) leads to an optimal operation of a distribution feeder. However, it also poses a challenge that an adversary can tamper with the metered data and thus can render the VVC action ineffective. Distribution system state estimation (DSSE) acts as a backbone of centralized VVC. Distributed energy resources (DER) injection measurements constitute leverage measurements from a DSSE point of view. This paper proposes two solutions as a volt var optimization-distribution system state estimation (VVO-DSSE) malicious attack mitigating strategy when the DER injection measurements are compromised. The first solution is based on local voltage regulation controller set-points. The other solution effectively employs historical data or forecast information. The concept is based on a cumulant based probabilistic optimal power flow with the objective of minimizing the expectation of total power losses. The effectiveness of the approach is performed on the 95-bus UK generic distribution system (UKGDS) and validated against Monte Carlo simulations.
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This work has been supported by the Engineering and Physical Sciences Research Council (EPSRC) UK through the PV2025-Potential Costs and Benefits of Photovoltaics for UK-Infrastructure and Society (EP/K02227X/1).