Table 3 Safety requirements
From: An integrated testbed for locally monitoring SCADA systems in smart grids
Safety requirement | Explanation |
|---|---|
\(\forall L_{i} \in \mathcal {L}~~ \forall M_{h} \in L_{i}.M M_{h}.V \in [0.9 L_{i}.V_{ref}; 1.1 L_{i}.V_{ref}]\) | Voltage on all lines stays between the boundaries of the reference voltage value ±10% |
\( \forall L_{i} \in \mathcal {L}~~ \forall M \in L_{i}.M M_{h}.I \leq L_{i}.I_{max}\) | Current in a power line does not exceed its maximum allowed current |
\(\sum _{\mathcal {P}^{G}}{P_{i}^{G}} + \sum _{\mathcal {P}^{C}}{P_{j}^{C}} = 0\) | Power produced by the sources equals the power consumed by the loads |
Interlocks (defined based on topology), e.g., Si.st || Sj.st=1 | Some switches cannot be opened simultaneously for safety reasons |