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Optimal Distribution Planning: Meeting New Regulation Criteria for Reliability. LA Jorge, E Quaresma, F Mira 1 LAFM Ferreira, PMS Carvalho 2 SNC Grave, FFC Silva 3 LMF Barruncho 4 1 EDP Distribução Energia S.A. 2 Instituto Superior Técnico 3 Instituto de Optimização Aplicada
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Optimal Distribution Planning: Meeting New Regulation Criteria for Reliability LA Jorge, E Quaresma, F Mira 1 LAFM Ferreira, PMS Carvalho 2 SNC Grave, FFC Silva 3 LMF Barruncho 4 1 EDP Distribução Energia S.A. 2 Instituto Superior Técnico 3 Instituto de Optimização Aplicada 4 ITGeo, Grupo Edinfor S.A. Portugal
Optimal Planning Costs to minimize: Investment costs Energy losses costs Reliability costs What are the reliability costs? ENS costs (Traditional criteria) ENS costs + Interruption Penalties (New regulation criteria)
EDP Optimization Technologies Name: DPlan -- Distribution Planning Possible Objectives/Constraints: Arbitrarily complex objectives Realistic constraints Thorough evaluation. Algorithm: Lamarckian Evolutionary Hybrid Network max size: 30,000 Nodes
Optimization Results on Interruption Duration Traditional regulation criteria — customer outage time distribution for the optimal solution. New regulation criteria — customer outage time distribution for the optimal solution.
Optimization Results on Interruption Frequency Traditional regulation criteria — customer outage frequency distribution for the optimal solution. New regulation criteria — customer outage frequency distribution for the optimal solution.
Traditional vs. New Optimal Reliability The new regulation criteria reduces substantially both: Customer indices Customer over-time interruptions; Customer over-frequency interruptions. System indices System average interruption duration index (SAIDI) System average interruption frequency index (SAIFI)
Traditional vs. New Optimal Costs New regulation criteria leads to:An investment growth An important cutoff on penalties A reduction on ENS
Another Case New regulation criteria leads to:An investment growth A cutoff on penalties An increase on ENS
Conclusion New regulation criteria changes optimal network development Changes the system optimal investment and increases its costs Changes the system average quality of service may improve it, or not The company has network optimization technologies to meet new regulation criteria This is an ongoing process We are prepared to meet such criteria