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Electrical Engineering - ELEN 655

Advanced Modeling in Energy Conversion

• Describe the various types of ac machines.
• Describe the various types of dc machines.
• Discuss how an ac generator is different than an ac motor. (loss diagrams)
• Describe the construction characteristics of a stator (armature).
• Describe the construction characteristics of a rotor (field winding).
• Discuss the equivalent circuit of an ac induction motor.
• Calculate slip for an induction motor.
• Calculate the synchronous frequency for an ac machine.
• Calculate slip frequency for an induction motor.
• Discuss the parameters considered in determining NEMA design classes.
• Use the voltage and current equations for an ideal transformer
• Calculate secondary side impedances referred to the primary side.
• Discuss the model for a transformer with all effects included.
• Calculate the active and reactive power losses for a transformer.
• Calculate transformer efficiency.
• Calculate voltage regulation for a transformer.
• Calculate autotransformer power ratings
• Determine transformer impedances from test data.
• Calculate transformer performance under open circuit conditions.
• Calculate transformer performance under short circuit conditions.
• Determine the line to line turns ratios for the three phase connections.
• Determine the power ratings for three phase transformers.
• Determine the amount of phase shift for the three phase connections.
• Discuss the equivalent circuit for the armature of an ac generator.
• Understand how internal voltage is related to the field current in a generator.
• Use active & reactive power equations when the power angle is known.
• Describe over-excited, under-excited, and normally excited operation.
• Discuss increasing power output when a generator serves a load.
• Calculate generator outputs when connected to an “infinite bus.”
• Calculate generator short circuit currents for various faults.
• Discuss generator and interconnected system models.
• Calculate motor parameters using test data during open circuit conditions.
• Calculate motor parameters using test data during short circuit conditions..
• Discuss motor operating regions to deliver maximum torque.
• Identify issues of concern in motor selection and application.
• Describe issues of concern in choosing generators for power systems
• Understand how the global climate change issue is influencing energy decisions.
• Discuss the advantages & disadvantages of using coal power plants.
• Discuss the advantages & disadvantages of using nuclear power.
• Discuss the advantages & disadvantages of using natural gas.
• Discuss the advantages & disadvantages of oil fired power plants.
• Discuss the advantages & disadvantages of renewable technology.
• Discuss the advantages & disadvantages of distributed generation.
• Calculate the total flux in a ferromagnetic core.
• Use the equations for rotational motion and linear motion.
• Discuss how magnetic circuits are analogous to electric circuits.
• Calculate the flux density associated with a given magnetic field.
• Understand the basic assumptions in performing stability analyses.
• Calculate machine steady state stability.
• Calculate machine transient and dynamic stability.
• Apply the National Electrical Code and the National Electrical Safety Code
• Describe the structure of the U.S. power grid.