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Mississippi State University Intro to Electrical & Computer Engineering

Schweitzer Engineering Laboratory, Inc. SEL Project. Mississippi State University Intro to Electrical & Computer Engineering P ower S ystem A pplication L aboratory (PSAL) September 25, 2003. Power = Utility. Motivation. Brief Overview of power engineering

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Mississippi State University Intro to Electrical & Computer Engineering

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  1. Schweitzer Engineering Laboratory, Inc. SEL Project Mississippi State University Intro to Electrical & Computer Engineering Power System Application Laboratory (PSAL) September 25, 2003

  2. Power = Utility Motivation • Brief Overview of power engineering • Show that power engineering relates to many areas of ECE • Show that power engineering has high tech applications of technology • Educate & Recruit ECE students in the area of power Power > Utility

  3. Our Society Requires Energy

  4. By 2020, U.S. Electricity Needs Will Increase by 44% Source: U.S. Department of Energy

  5. 50% of U.S. Electricity Supplied by Coal

  6. 20% of U.S. Electricity Supplied by Nuclear Energy

  7. 16% of U.S. Electricity Supplied by Natural Gas

  8. 7% of U.S. Electricity Supplied by Hydroelectric

  9. 3% of U.S. Electricity Supplied by Oil

  10. 2% of U.S. Electricity Supplied by Renewables

  11. The Main Interconnections of the U.S. Electric Power Grid

  12. Power Flow High Voltage Transmission Lines Transmission Substation Power Substation Power Plant

  13. Fundamentals of Energy Systems Power Transmission Power Distribution High Voltage Insulation Coordination in Electric Power Systems Power Systems Relaying and Controls For more information: Website: www.ece.msstate.com Undergraduate Power Related Courses:

  14. What is Protective Relaying? Protective Relaying is one of several features of the power system design that is concerned with minimizing damage to equipment and interruptions to service when electrical failures occur. • Primary Function: Cause the prompt removal of any element of a power system when it starts to operate in any abnormal manner • Secondary Function: Provide indication of the location and type of failure

  15. Types of Protective Relays • Electromechanical • Solid State • Digital (Microprocessor)

  16. Protective Relay Requirements • Measure Power System Voltage, Current, and Breaker Position • Detect Power System Fault • Short circuit via overcurrrent, current differential, impedance, undervoltage, etc. • Trip Breaker • Isolate fault portion of the power system • Communicate with Computer Systems • Communicate with Humans

  17. Protective Relay Requirements • Dependable • Always operates for power system faults in the zone of protection • Secure • Does not operate during normal power system conditions or for faults outside the zone of protection • Fast • Detects and clears faults in milliseconds • Accurate • << 5% error over a wide range of fault conditions

  18.  Generating Demonstrations and LaboratoriesUsing A Power Relaying Test System Noel N. Schulz, Haibin Wang, Yanfeng Gong, Nick Amann, & Derrick Cherry Mississippi State University Mike Collum, Schweitzer Engineering Labs (SEL) Allison Robinson, Mississippi School of Math & Science (MSMS)

  19. System Data Flow Diagram • All the Data flows are bi-directional • Use PC to change the setting or get results from Adaptive Multi-Channel Source (AMS) throughserial communication link • AMS & Relay interact via serial communication

  20. Check out… Demos Broken Relays

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