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Power Systems Simulation Laboratory

This simulation-based laboratory complements Introduction to Power Systems with practical studies in transmission-line modeling, power flow, transformers, HVDC, power quality, synchronous generators, voltage regulation, transient stability, economic dispatch, faults, protection, and switching over-voltages.

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Objectives
  • Build and analyze electric-power-system models using MATLAB and Simulink, PowerWorld Simulator, and PSCAD/EMTDC.
  • Calculate transmission-line parameters and evaluate power flow, bus voltages, transformer controls, and HVDC transmission.
  • Investigate power quality, synchronous-generator behavior, voltage regulation, and reactive-power compensation.
  • Simulate transient stability, automatic generation control, economic dispatch, and reliability planning.
  • Analyze short-circuit faults, transmission-line loading, relay settings, switching over-voltages, and surge-arrester protection.
Experiments
1 Experiment 1: Visit to a Local Substation
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Description: Observe substation or generating-station apparatus firsthand and learn how major components contribute to power-system operation and protection.

2 Experiment 2: Introduction to PSCAD/EMTDC
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Description: Learn the PSCAD/EMTDC modeling and plotting environment while investigating reactive power and power factor in single-phase and three-phase circuits.

3 Experiment 3: Transmission Line and Modeling
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Description: Calculate the electrical parameters of a 345-kV transmission line and construct its simulation model in PSCAD/EMTDC.

4 Experiment 4: Power Flow
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Description: Perform power-flow calculations for a small network using MATLAB and PowerWorld Simulator and compare the resulting operating points.

5 Experiment 5: Transformers in Power Flow
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Description: Study how transformer tap changers and phase shifters influence network power flow and bus voltages.

6 Experiment 6: HVDC Transmission in Power Flow
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Description: Add an HVDC transmission line to a power-flow case, examine its system effects, and explore the operation of 12-pulse thyristor converters.

7 Experiment 7: Power Quality
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Description: Investigate current harmonics produced by a power-electronics interface and evaluate waveform distortion using total harmonic distortion.

8 Experiment 8: Synchronous Generators
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Description: Simulate a sudden short circuit and examine its effect on the electrical output and dynamic response of a synchronous generator.

9 Experiment 9: Voltage Regulation
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Description: Evaluate how real and reactive power affect bus voltages and investigate the operation of a thyristor-controlled reactor.

10 Experiment 10: Transient Stability
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Description: Simulate the rotor-angle transient stability of a three-bus power system following a disturbance.

11 Experiment 10A: Making a Power System Reliable
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Description: Use PowerWorld editing and analysis tools to plan and modify a power system so that it continues to operate reliably under specified contingencies.

12 Experiment 11: AGC and Economic Dispatch
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Description: Study the dynamic interaction of two control areas with Simulink and solve an economic-dispatch problem with PowerWorld Simulator.

13 Experiment 12: Short-Circuit Faults and Transmission-Line Overloading
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Description: Analyze short-circuit faults and overloaded transmission lines using MATLAB and PowerWorld Simulator.

14 Experiment 12A: Fault Analysis with Relay Settings
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Description: Calculate power-system fault currents and use the results to determine appropriate protective-relay settings.

15 Experiment 13: Switching Over-Voltages and Surge Arresters
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Description: Use PSCAD/EMTDC to simulate switching over-voltages and evaluate how zinc-oxide surge arresters limit equipment voltage stress.

Software

MATLAB and Simulink

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PowerWorld Simulator demo

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PSCAD Free Edition

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