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Elektronika daya kuliah ke 1
Elektronika Daya discusses power electronics, which is the field that studies the use of electronic technology in converting electric power. Power electronics is needed because most electrical devices work inefficiently or cannot function using the available power sources. It also discusses various power electronic applications in power generation, transmission, distribution, transportation, industries, and home appliances. Some current challenges mentioned are voltage regulator modules for microprocessors and renewable energy power generation systems.
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Elektronika daya kuliah ke 1
- 1. Elektronika Daya PekikArgo Dahono
- 2. Elektronika Daya Disiplin ilmuyang mempelajari penggunaan teknologi elektronika dalam konversi energi (daya) elektrik. Mengapa energi (daya) elektrik perlu dikonversikan? • Hampir semua peralatan listrik bekerja kurang efisien atau tidak bisa bekerja pada sumber energi (daya) elektrik yang tersedia. • Banyak pembangkit energi (daya) elektrik nonkonvensional mempunyai bentuk yang tidak kompatibel dengan sumber energi (daya) elektrik lainnya.
- 3. Konverter Daya Daya masukan Daya keluaran Konverterdaya Beban Pengukuran Pengukuran Pengendali Acuan
- 4. Konverter Sinyal danDaya Konverter Sinyal Konverter Daya Sinyal masuk Sinyal keluar Daya masuk Daya keluar Daya masuk Sinyal masuk
- 5. Regulator tegangan R1 Rv Io Vi Io Vi R2 Vo Ro Vo Ro
- 6. Switching Regulator Ts Ii Vi Io Vo TON 0 Vi Vo Load Io 0 Ii 0 TON Vo = Vi Ts
- 7. Advantages and Disadvantagesof Switching Regulator Advantages: • High efficient and small size • Reliable Disadvantages: • The control is more complicated • EMC problems
- 8. Linear and SwitchingPower Supplies Io 220 V/ 50 Hz Vo Io • 220 V/ 50 Hz Load Vo •
- 9. Advantages and Disadvantagesof Switching Power Supplies Advantages: • High efficient and small size • DC filter capacitor is working at high voltage (Energy stored is high) • The reactive component requirements are small. Disadvantages: • Control is more complicated • EMC problems
- 10. Power Supply Comparison Power Density Efficiency Linear Power <0.12 W/cm3 <40% Supply SMPS 6W/cm3 >95%
- 11. Variable Speed PumpingSystem Pipe characteristic 2 Head/Press ure Pipe characteristic 1 H2 H1 Pump characteristic 1 H3 Pump characteristic 2 Q2 Q1 Flow
- 12. Klasifikasi Konverter Daya • Konverter DC-ke-DC (Chopper) • Konverter AC-ke-DC (Penyearah) • Konverter DC-ke-AC (Inverter) • Konverter AC-ke-AC (Cycloconverter/Matrix)
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- 14. Power Electronic Applications in Power Generation • Excitation system • Automatic Voltage Regulator • Variable Speed Power Generation (Hydro, Wind, Microturbine gas) • Power Conditioners for Renewable Power Generation (Fuel cells, solar cells) • Energy Storage
- 15. Excitation System inBrushless AC Generator D1 D3 D5 Rotor D2 D4 D6 Stator Exciter Main generator
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- 17. Power Electronic Applicationsin Power Transmission • High-Voltage Direct Current Transmission • Static VAR Compensators • Series Compensation • Phase Shifters • Dynamic Braking • Flexible AC Transmission System • High-Speed Circuit Breakers
- 18. Static VAR Compensator • Improving power factor • Reducing voltage drop and losses • Increasing maximum power transfer • Improving damping factor
- 19. HVDC Transmission System DC Line AC System AC System Converter Converter Two - terminals dc system • Asynchronous links • Suitable for long distance transmission and underground cable transmission • Improving damping factor
- 20. Power Electronic Applicationsin Power Distribution • Static VAR Compensators • Power Conditioners • Active Filters • Unified Power Conditioners • Dynamic Voltage Restorers • High-Speed Circuit Breakers • Light High-Voltage Direct-Current Distribution • Power conditioners for distributed power generation
- 21. Active Filter is AC source Ls if ih es Harmonic Active source filter
- 22. Power Electronic Applicationsin Transportation Industries • High-Speed Trains • Electric vehicles • Elevators • Airplanes • Ships • Unmanned vehicles
- 23. PWM Inverter forElectric Traction Pantograph PWM Inverter Traction Motors
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- 26. Power Electronic Applicationsin Industries • Rolling mills • Variable speed pump systems • Cement kilns • Rolling ball mills • Robotics • Electrolysis
- 27. Variable Speed Drives Smoothing inductor AC Motor AC source 3φ Smoothing capacitor vout Controlled Square - wave rectifier inverter AC Motor AC source 3φ Smoothing capacitor vout Uncontrolled PWM inverter rectifier
- 28. Power Electronic Applicationsin Home Appliances • Microwave heating • Air conditioners • Refrigerators • Toasters • Cookers • Vacuum cleaners • Wash machines
- 29. Power Electronic Applicationsin Information Industries • DC power supplies • Distributed power supplies • Power conditioners • Uninterruptible power supplies • Battery chargers • Voltage Regulator Modules
- 30. Is power electronicsnew technology? Power electronics have been developed since the beginning of 20th century when mercury arc and vacuum tubes technology was emerged. Power conversion has been known for a long time by using a combination of electrical machinery. Power electronics development has grown very fast since the introduction of thyristor or SCR (Semiconductor controlled rectifier) in nineteen fifties.
- 31. Interdiciplinary nature ofpower electronics Control Circuit Signal theory theory processing Electronics Power Solid - state Power Electronics systems physics Computer Electric machines Electromagnetics
- 32. Current Challenges • Voltage regulator modules for microprocessors • Embedded inverter for motor drives • Intelligent power ICs • Flexible AC power transmission systems • Custom power distribution system • Unified power conditioners • Renewable energy power generation system
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- 34. Matriks saklar S1 S3 Vi u v Load S2 S4
- 35. Penyearah tak terkendali Vi S1 S3 S1 Vi u v S2 Load S3 S2 S4 S4 v uv
- 36. Penyearah terkendali Vi S1 S1 S3 S2 Vi u v Load S3 S4 S2 S4 v uv
- 37. AC regulator Vi S1 S3 S1 Vi u v S2 Load S3 S2 S4 S4 v uv
- 38. Phase-Controlled AC-AC Cycloconverter S1 S3 + ei Beban vo S2 S4
- 39. Konverter DC-ke-DC Vi S1 S3 S1 Vi u v S2 Load S3 S2 S4 S4 v uv
- 40. Inverter PWM Vi S1 S3 S1 S2 Vi u v Load S3 S4 S2 S4 v uv
- 41. Understanding Power ElectronicCircuits • Consider all power semiconductor switches as ideal switches • Ideal switches have no voltage drop, no leakage current, and transition times are zero. • Practical considerations are given in detailed design. • Background on signal electronics is useful to understand power electronics.
- 42. Tugas Kelompok I • Sebutkan peralatan rumah-tangga yang menggunakan teknologi elektronika daya. Jelaskan peran rangkaian elektronika daya pada peralatan ini (salah satu). • Sebutkan peralatan kantor yang menggunakan elektronika daya pada peralatan kantor (salah satu). • Jelaskan prinsip mobil hibrida. Jelaskan mengapa mobil hibrida lebih efisien dibanding mobil konvensional. • “Saving energy by using more electricity” merupakan salah satu jargon untuk menghemat energi saat ini. Jelaskan maksudnya. • “Power electronics for peace environment” merupakan salah satu jargon para ahli elektronika daya. Jelaskan maksudnya. • Apa keuntungan transmisi daya arus searah dibanding transmisi daya arus bolak-balik. Sebutkan contoh penerapan transmisi daya arus searah di dunia. • FACTS (Flexible Transmission AC Systems) merupakan contoh penerapan elektronika daya dalam transmisi daya arus bolak-balik. Jelaskan maksudnya.