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MOD_42_10v2 : Changes to the Single Ramp Up Rate and the Single Ramp Down Rate Calculation. Single Ramp Rate. MSP Software uses A single ramp rate based on time to ramp between min & max outputs Generator Units can specify: 5 ramp up rates over 4 ranges and 5 ramp down rates over 4 ranges.
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MOD_42_10v2 : Changes to the Single Ramp Up Rate and the Single Ramp Down Rate Calculation
Single Ramp Rate • MSP Software uses • A single ramp rate based on time to ramp between min & max outputs • Generator Units can specify: • 5 ramp up rates over 4 ranges and 5 ramp down rates over 4 ranges. • Dwell times describe output levels at which ramping must pause. RAMP DOWN RAMP UP Output (MW) Availability Slope = Single Ramp Up Rate Slope = Single Ramp Down Rate Min Stable Generation Dwell Times Time
MW RUR3 Ramp up Break Point RUR2 Ramp up Break Point RUR1 MINGEN Load up Break Point 2 Load up Break Point 1 Block Load Time SoakTime 2 Soak Time 1 Dwell Time 2 Dwell Time 1 LUR1 LUR2 LUR3 Single Ramp up Rate Real-Time Availability
MW RUR3 Ramp up Break Point RUR2 Ramp up Break Point RUR1 MINGEN Time Dwell Time 2 Dwell Time 1 Single Ramp up Rate Real-Time Availability Single Ramp up Rate
Single Ramp up Rate The Single Ramp up Rate calculation is: = (Max(Availability) – Min(Minimum Generation))/RampUpTime The Single Ramp Down Rate calculation is: = (Max(Availability) – Min(Minimum Generation))/RampDownTime
MW Real-Time Availability RDR3 Ramp Down Break Point 2 RDR2 Ramp Down Break Point 1 RDR1 MINGEN DLR2 Deloading Break Point DLR1 Time Dwell Time 2 Dwell Time 1 Single Ramp down Rate
MW Real-Time Availability (MAXGEN) RDR3 Ramp Down Break Point 2 RDR2 Ramp Down Break Point 1 RDR1 MINGEN Time Dwell Time 2 Dwell Time 1 Single Ramp down Rate Single Ramp down Rate
Single Ramp up Rate – proposed changes The Single Ramp up Rate calculation is: If max(AAuh) <= MinGenTOD then (MaxGenTOD – max(min(Minimum Stable Generation), MinGenTOD))) /RampUpTime else (max(AAuh) – max(min(Minimum Stable Generation), MinGenTOD))) /RampUpTime And similarly for the Single Ramp Down Rate.