1 / 15

AVOIDED OPERATING COST IN THERMAL GENERATING SYSTEMS

AVOIDED OPERATING COST IN THERMAL GENERATING SYSTEMS. N. CHOWDHURY Power Systems Research Group University of Saskatchewan Saskatoon, Canada. Non-Utility Generation (NUG) Independent Power Producers Cogenerating Plants Type of NUGs Conventional Solar Biomass Wind.

erling
Download Presentation

AVOIDED OPERATING COST IN THERMAL GENERATING SYSTEMS

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. AVOIDED OPERATING COST IN THERMAL GENERATING SYSTEMS N. CHOWDHURY Power Systems Research Group University of Saskatchewan Saskatoon, Canada

  2. Non-Utility Generation (NUG) Independent Power Producers Cogenerating Plants Type of NUGs Conventional Solar Biomass Wind

  3. Non-Utility Generation (1) Dispatchable Utility maximizes savings (2) Non-dispatchable Utility is tied to the NUG schedule

  4. Firm Capacity Unit Commitment Capacity Credit Energy Credit Non-Firm Capacity Energy Credit

  5. Operating Cost Load Profile Operating Criteria (1) Deterministic (2) Probabilistic Optimum Loading Configuration

  6. Avoided Operating Cost Optimum operating Cost Without a NUG Optimum operating Cost With a NUG All cost figures are evaluated on the basis of optimum loading schedule of the generating units that satisfy all operating and reliability criteria.

  7. Generation Data For the IEEE - RTS

  8. Running Cost Parameters For the IEEE - RTS

  9. Load data for the IEEE-RTS

  10. 5900 5400 4900 4400 3900 3400 AOC($) 2900 2400 1900 1400 900 100 200 300 400 500 600 Cogeneration energy (MWh) NEL, NEL, EL, EL, POF=0.0027 POF=0 POF=0.0027 POF=0

  11. 375,500 375,000 374,500 374,000 373,500 373,000 372,500 372,000 371,500 371,000 370,500 100 200 300 400 500 600 Cogeneration energy (MWh) NEL NEL EL EL POF=0 POF=0.0027 POF=0 POF=0.0027

  12. 4667.80 3746.90 3746.85 4667.60 3746.80 4667.40 3746.75 4667.20 3746.70 AOC for NEL units ($) AOC for EL units ($) 3746.65 4667.00 3746.60 4666.80 3746.55 4666.60 3746.50 1 3 4 5 2 Number of units NEL EL

  13. 4650 3730 3710 4600 3690 4550 3670 3650 4500 AOC for NEL units($) AOC for EL units($) 3630 4450 3610 3590 4400 3570 4350 3550 0.01 0.02 0.03 0.04 0.05 Probability of failure NEL EL

  14. 373,000 372,800 372,600 372,400 372,200 Utility cost with NUG energy ($) 372,000 371,800 371,600 0.01 0.02 0.03 0.04 0.05 Probability of failure NEL EL

  15. Conclusions Avoided operating cost depends on the operating criterion. Optimum loading schedules should be utilized in the assessment of avoided operating cost. The technique illustrated in this paper is simple and straightforward. The technique can handle deterministic and probabilistic operating criteria with little difficulty.

More Related