ECE4762011_Lect18

# ECE4762011_Lect18 - ECE 476 POWER SYSTEM ANALYSIS Lecture...

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Lecture 18 Markets, Fault Analysis Professor Tom Overbye Department of Electrical and Computer Engineering ECE 476 POWER SYSTEM ANALYSIS

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2 Announcements Be reading Chapter 7 HW 7 is 12.26, 12.28, 12.29, 7.1 due October 27 in class. Correct case for 12.29 was emailed out; demo of OPF during class US citizens and permanent residents should consider applying for a Grainger Power Engineering Awards. Due Nov 1. See http://energy.ece.illinois.edu/grainger.html for details. The Design Project, which is worth three regular homeworks, is assigned today; it is due on Nov 17 in class. It is Design Project 2 from Chapter 6 (fifth edition of course). For tower configuration assume a symmetric conductor spacing, with the distance in feet given by the following formula: (Last two digits of your EIN+50)/9. Example student A has an UIN of xxx65. Then his/her spacing is (65+50)/9 = 12.78 ft.
3 Why not pay as bid? Two options for paying market participants Pay as bid Pay last accepted offer What would be potential advantages/disadvantages of both? Talk about supply and demand curves, scarcity, withholding, market power

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4 In the News: Electricity Price Caps Texas (ERCOT) is considering raising the maximum wholesale price cap from \$3000/MWh to \$6000/MWh to encourage more electric supply. Average price in 2010 was \$40/MWh, down from \$86/Mwh in 2008. ERCOT is not subject to most federal regulations Source: Wall Street Journal, Oct 3, 2011
5 Market Experiments

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6 Fault Analysis The cause of electric power system faults is insulation breakdown This breakdown can be due to a variety of different factors lightning wires blowing together in the wind animals or plants coming in contact with the wires salt spray or pollution on insulators
7 Fault Types There are two main types of faults symmetric faults: system remains balanced; these faults are relatively rare, but are the easiest to analyze so we’ll consider them first. unsymmetric faults: system is no longer balanced; very

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## This note was uploaded on 11/17/2011 for the course ECE 476 taught by Professor Overbye,t during the Fall '08 term at University of Illinois, Urbana Champaign.

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ECE4762011_Lect18 - ECE 476 POWER SYSTEM ANALYSIS Lecture...

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