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SCED Penalty Factor . Resmi Surendran. Transmission Constraint Penalty Values. Maximum Shadow Price for Base Case: $5,000/MW Generic constraints : $5,000/MW Post Contingency 345 kV: $4,500/MW 138 kV: $3,500/MW 69 kV: $2,800/MW. Power Balance Penalty Curve.
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SCED Penalty Factor Resmi Surendran
Transmission Constraint Penalty Values Maximum Shadow Price for • Base Case: $5,000/MW • Generic constraints : $5,000/MW • Post Contingency • 345 kV: $4,500/MW • 138 kV: $3,500/MW • 69 kV: $2,800/MW
Power Balance Penalty Curve • equivalent to having extra capacity for meeting power balance violation at • (+/-) 3001 $/MWh for violated MW from 0MW to 9999.999MW, and • (+/-) 5000$/MWh for violated MW from 10000MW to 99999.999MW
Effects of Different Power Balance Penalty Curve • Scarcity Pricing • Effects on reliability due to dependence on regulation
Study • Parameters • Energy Offer Curves from LFC test date • W_N, N_H & Valley interfaces as competitive constraints • Generation pattern & transmission constraint flows at different load levels. • Monitor • Max/Min/Avg LMP & SPP • Amount of Power Balance violation & dependence on regulation
Shift Factor Cut off • SF cut off • during LFC test was 0.03 • for Nodal is 0.0001 • Effective SF cut off in Nodal => Offer Cost / Max Shadow Price • 0.03 SF => 1 MW generation will provide 0.03 MW relief or 33.33 MW of generation needed • to provide 1 MW relief • Will cost (1/SF) * offer cost • Max cost Market is willing to pay is the Max Shadow Price for the constraint