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Int. to Electrical-Electronics Engineering

Int. to Electrical-Electronics Engineering. Asst. Prof. Dr. Alper ŞİŞMAN. Electrical Engineering. High Voltage Generation, transmission and distribution of electrical energy Electrical Machines Transformers AC/DC. Motors Step motors Actuators Electrical Wiring/ Lightning

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Int. to Electrical-Electronics Engineering

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  1. Int. to Electrical-Electronics Engineering Asst. Prof. Dr. Alper ŞİŞMAN

  2. Electrical Engineering • High Voltage • Generation, transmission and distribution of electrical energy • Electrical Machines • Transformers • AC/DC. Motors • Step motors • Actuators • Electrical Wiring/ Lightning • Power Electronics • Control / Automation • Electric Vehicles

  3. Electronics • Electrical circuits • Analog Circuits • Digital Circuits • Active/passive elements • Semiconductors • Diode • Bipolar junction Transistor (BJT) • Field effect Transtor (FET) • Signal processing • Analog and digital signal processing: Fourier transform, quantization, sampling • Speech processing, digital image processing, data compression • Filtering • Telecommunication • Biomedical Engineering

  4. High Voltage/ Electric generation • Electricity generation is the process of generating electrical power from other sources of primary energy. • Methods: Electromagnetic induction, Electrochemistry (Battery), photoelectric effect. • Electromag. Inductions: Nuclear, hydroelectric, fossil fuels, wind.

  5. Turbines: All turbines are driven by a fluid acting as an intermediate energy carrier. Many of the heat engines just mentioned are turbines. Other types of turbines can be driven by wind or falling water. • Turbines are usually driven by the following carriers: • Steam: Water is boiled by: • Nuclear fission, fossil fuels (Efficiency: %60). • Water, Wind. • Photovoltaic panels: convert sunlight directly to electricity (%40).

  6. Nuclear Power Plant

  7. Transmission and Distribuiton • High voltage AC transmission (<500 kv) • Losses • Sub transmission lines (~ 70-150 kV) • Economical reasons (HV equipment are expensive) • User level transmission (~32-3.3 kV) • Safety • Why AC Transmission? • HVDC power production is expensive • The transformers enables simple voltage level conversion in AC • HVDC transmission • Low Loss, skin effect (AC) • Synchronization problem of AC transmission • Longer transmission lines • Less environmental problems

  8. Load balancing • Three Phase, Why? • Principle of AC motor, Rotating Field • High quality AC-DC conversion

  9. Electrical Machines • Transformers & Applications • Voltage level conversion • Isolation • DC/AC motors, Generators • AC-DC Servo Motors • Step Motors • Angular Position Control

  10. Power Electronics • Rectifiers • AC-DC • Inverters/Converters • DC-DC (SMPS) • DC-AC • Chopper • AC-AC • Motor Drivers • H-Bridge

  11. Electronics • Electronics deals with electrical circuits that involve active electrical components such as vacuum tubes, transistors, diodes and integrated circuits, and associated passive interconnection technologies

  12. Electrical Circuits • What are analog&digital signals? • Analog circuits • Digital Circuits • ADC,DAC • Analog vs. Digital (Comparison)

  13. Signal Processing • Linear systems • Fourier transform • Time and frequency domain • Implulse function • Applications: • Filtering • Speech processing • İmage processing

  14. Telecommunication

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