Power Systems - Electrical and Computer Engineering
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Power Systems - Electrical and Computer Engineering
line. Generator. Load. Feeder. Step up. Transformer n Balanced Coverage of. Topics u Changing Landscape and. Resources u
First Course on
Power Systems
• What topics should be included? • What has changed from electrical engineering education in the past? • What is inspiring new student interest? • How are we addressing the need? Bruce Wollenberg
1
How is electric power produced? n
n
n
Students have not had a “machines” course Most students have not had a thermodynamics course Most students do not know how electric power is produced
2
What does “three phase” mean? n
n
n
Most introductory circuit analysis courses do not teach three phase Most do not cover AC power adequately Reactive power? Transformers?
3
What is “The Grid”
4
How do we make connections at 345kV? n n n
What’s so special about circuit breakers? Why also have disconnect switches? Why do we raise and lower voltage?
5
What can go wrong? n
n
Fault analysis using symmetrical components Protection with relays
6
Why are students so excited about renewables?
7
Wind Generation n
How do we generate at 60 Hz from variable speed wind?
8
What can go wrong with wind generation?
9
Will we need more transmission? You betcha!
Green Power Express
10
n Balanced Coverage of Topics u u u u
Step up Transformer
Changing Landscape andGenerator Resources Apparatus in Generation & Delivery of Power Analysis and Operation Fault Protection
The abov e simulation is w ith D1=0.75/wsyn and K1=0.001/w syn w ith timeconstants Tg1,Ts1 in seconds
14
Lab using PowerWorld
15
Lab using EMTP/PSCAD
16
Topics Included n
Changing Landscape, Distributed generation (DG)
n
Energy Sources, Renewables, Environmental Consequences
n
Synchronous generators
n
AC Transmission Lines and Cables; HVDC Lines
n
Power Flow
n
Power Electronics based FACTS Controllers
n
Types of loads; Power Quality
n
Voltage Stability
n
Transient Stability
n
Interconnected Systems
n
Short-Circuit Faults, Relays, Circuit Breakers
n
Switching Transients, Surge Arresters
17
Power Systems Lab – free to download: CD with 18 Video Clips
Lab Manual - Experiments 1.
Visit to a Local Substation/Generating Plant
2.
Familiarization with PSCAD/EMTDC
3.
Obtaining Parameters of a 345 kV Transmission Line and Modeling it in PSCAD/EMTDC
4.
Power Flow using MATLAB and PowerWorld
5.
Including Transformers in Power Flow using PowerWorld and Confirmation by MATLAB
1. 2. 3. 4. 5. 6. 7.
9.
8. Including an HVDC Transmission Line for Power 9. 10. Flow Calculations in PowerWorld and Modeling of 11. Thyristor Converters in PSCAD/EMTDC 12. 13. Power Quality 14. 15. Synchronous Generators 16. 17. Voltage Regulation 18.
10.
Transient Stability using MATLAB
11.
AGC using Simulink and Economic Dispatch using PowerWorld
12.
Transmission Line Short Circuit Faults using MATLAB and PowerWorld, and Overloading of Transmission Lines using PowerWorld
13.
Switching Over-Voltages and Modeling of Surge Arresters using PSCAD/EMTDC
6.
7. 8.
Installation of PowerWorld and PSCAD-EMTDC Familiarization with using PSCAD-EMTDC Obtaining Parameters of Transmission Line using PSCAD/EMTDC Simulating a Transmission Line in a Power System using PSCAD/EMTDC Power Flow using PowerWorld Power Flow using MATLAB Including Off-Nominal Turns-Ratio and Phase-Shifting Transformers in Power Flow using PowerWorld Including an HVDC Transmission Line for Power Flow in PowerWorld Modeling of Thyristor Converters in PSCAD-EMTDC Power Quality Calculations using PSCAD-EMTDC Modeling of Synchronous Generators using PSCAD-EMTDC Voltage Regulation by Thyristor Controlled Reactors (TCR) using EMTDC Thyristor Controlled Series Capacitors (TCSC) using PSCAD-EMTDC Transient Stability using MATLAB AGC using Simulink Transmission Line Short Circuit Faults using PowerWorld Tripping of Transmission Lines due to Overloads using PowerWorld Switching Over-Voltages and Modeling of Surge Arresters using EMTDC
