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OPSC CIMExcel Software Inc. Slide 1

Optimal Power System Control (OPSC). for improved system stability, optimal AGC performance, and improved tie-line control, in interconnected or island operating mode (continental, area, sub-area). Nuclear. Wind. Hydroelectric. Fossil. Biomass/Solid Waste/Cogeneration.

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OPSC CIMExcel Software Inc. Slide 1

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  1. Optimal Power System Control (OPSC) • for improved system stability, optimal AGC performance, and improved tie-line control, • in interconnected or island operating mode (continental, area, sub-area). Nuclear Wind Hydroelectric Fossil Biomass/Solid Waste/Cogeneration Combined Cycle Gas Turbine OPSCCIMExcel Software Inc. Slide 1

  2. Power System Dynamics Model • The ith area is connected to the jth area by the kth tie-line (m areas and n tie-lines). • Mi d/dt ∆ωi= Gi - D0i - Di ∆ωi - Ei • ∆ωi = ωi- ωset • Ei= ∑k Tk( kth tie-line connected to the ith area ) • get Mi and Di from a major disturbance. • Tie-line Power Flows: • A*S= G - D0where A* is the inter-area connection matrix (m x n). • S= A-1(G - D0) where A is a square matrix (decomposition - idle or non-scheduled tie-line flows). • τ d/dtT= S- T CIMExcel Software Inc. Slide 2

  3. OPSC – Discrete-time Model Reference Control for AGC P1set(j) Optimal AGC Load Allocation OPSC Algorithm Eset net export (inter-area contracts) + PS(j) PAGC(j) APPC power mode Piset(j) Pi(j) ωG set - Pmset(j) ωG(j) pu power setpoints for participating units Enet export(j) l = m+n Filter - Sampler Filter - Sampler • Spinning Reserve • Optimization Modes • uniform • weighted • efficiency • weighted-efficiency ~ 10 seconds ∑ Pl(k) l = m+1 ωG(t) Enet export(t) Filter - Sampler Pm+1(k) Realtime Demand, Import, Export ISO Realtime Economic Load Allocation pu power for non-participating units Pl(k) Pm+n(k) ~ 5 minutes ISO Realtime Pricing Time-of-day Scheduling and Spinning Reserve OPSC CIMExcel Software Inc. Slide 3

  4. Optimal AGC Load Allocation – NERC Sub-Area OPSC CIMExcel Software Inc. Slide 4

  5. OPSC Discrete-time Model Reference Control - AGC Off OPSC CIMExcel Software Inc. Slide 5

  6. OPSC Discrete-time Model Reference Control - AGC On • (Hydroelectric on AGC – participating units in efficiency optimization mode) OPSC CIMExcel Software Inc. Slide 6

  7. Optimal AGC Load Allocation – Efficiency Mode OPSC CIMExcel Software Inc. Slide 7

  8. OPSC Discrete-time Model Reference Control - AGC On - Export Trip / Recovery OPSC CIMExcel Software Inc. Slide 8

  9. OPSC Discrete-time Model Reference Control - AGC On - Import Trip / Recovery OPSC CIMExcel Software Inc. Slide 9

  10. Optimal Power System Control – NERC Areas • Tie-lines CIMExcel Software Inc. Slide 10

  11. Optimal Power System Control Tie-line and Area Export Schedule CIMExcel Software Inc. Slide 11

  12. Optimal Power System Control – NERC Areas CIMExcel Software Inc. Slide 12

  13. Optimal Power System Control – NERC Tie-lines CIMExcel Software Inc. Slide 13

  14. Advanced Power Plant Control (APPC) • for improved stability and improved AGC performance in interconnected or island operating mode • using continuous and discrete time non-linear model reference control technology. Nuclear Hydroelectric Wind • Steam Turbine Governor • Boiler Pressure and Mass • Reactor Power • PWR, BWR, Areva, CANDU, ACR • Hydraulic Turbine Governor • (Kaplan) Pitch Optimization • Multi-Turbine Optimization • Blade Pitch • Multi-Turbine Optimization Biomass/Solid Waste/Cogeneration Combined Cycle Gas Turbine Fossil • Steam Turbine Governor • Boiler Pressure and Mass • Superheater Temperature • Combustion Control • Burner Management • Steam Turbine Governor • Boiler Pressure and Mass • Multi-Fuel Combustion • Multi-Valve Turbine Flow • Multi-Steam Header • Cogeneration Optimization • Steam Turbine Governor • Boiler Pressure and Mass • Combustor Control • Combined Power CIMExcel Software Inc. Slide 14

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