Introduction to Power Electronics, Powerpoint Slides | Power Electronics | ECE 320, Exams of Electrical and Electronics Engineering

Download Introduction to Power Electronics, Powerpoint Slides | Power Electronics | ECE 320 and more Exams Electrical and Electronics Engineering in PDF only on Docsity! F. Z. Peng: Slide 1August 1, 2004 Introduction to Power Electronics Fang Z. Peng Dept. of Electrical and Computer Engineering Michigan State University Phone: 517-432-3331, Fax: 517-353-1980 Email: fzpeng@egr.msu.edu F. Z. Peng: Slide 2August 1, 2004 Contents • Chapter 1: Introduction of Power Electronics • Chapter 2: Power Converter Basic Circuits and Operating Principles • Chapter 3: Control of Power Converters • Chapter 4: Power Converter System Control, Analysis, and Design • Chapter 5: Circuit Models and Simulation • Chapter 6: Power electronic systems and applications • Chapter 7: Automotive Applications: HEV and FC HEV System Configurations and Their Power Electronic Circuits • Chapter 8: Utility Applications: DG grid interconnection, Statcom, active filter, UPFC, and FACTS devices F. Z. Peng: Slide 5August 1, 2004 What is Power Electronics? Cont. Power Processor (PE Circuits) Raw power in Desired power out (V, I, P, F) To loads: Motor Utility line Computer Equipment ProcessControl Battery Fuel Cell Utility Solar Wind Capacitor/Inductor Dc or ac F. Z. Peng: Slide 6August 1, 2004 Multi-disciplinary Nature of Power Electronics Power Electronics Circuit theory Systems & Control theory Comm. & Signal processing Electronics DSP, FPGA Electromagnetics EMI Power systems Electric machine Simulation & computing Solid-state physics DSP Control Board F. Z. Peng: Slide 7August 1, 2004 Principle of Power Control Using Switch Vd RV RL iL Vd/RL iL 0 t Vd S DF LF RL vDF Vd vDF t TON TOFF T t Vd/RL iL • Current Control Using Variable Resistor • Current Control Using Switching Device F. Z. Peng: Slide 10August 1, 2004 Principle of AC-AC Converter (AC Power Controller) S Lo adv1 v2 V1 - AC Source V2 - AC Load S - AC Switch v1 S v2 ON OFF t t Resistor Load t Waveforms of AC Power Adjuster F. Z. Peng: Slide 11August 1, 2004 Principle of AC-AC Converter (Cycloconverter or Frequency Changer) V1 - AC Source V2 - AC Load S - AC Switch Waveforms of Cycloconverter Lo ad S1 S2 S4 S3 v1 v2 v1 S1, S4 S2, S3 v2 ON OFF Fundamental t t t t F. Z. Peng: Slide 12August 1, 2004 Principle of DC-AC Converter (Inverter) Voltage-Source Inverter Waveforms of Inverter Load S1 S2 S4 S3 vdc vac vdc S1, S4 S2, S3 vac ON OFF Fundamental t t t t t vac (PWM) F. Z. Peng: Slide 15August 1, 2004 Diode and Rectifier + v - i v i vac vac vO Lo ad iL vO ωtπ 2π iL F. Z. Peng: Slide 16August 1, 2004 Thyristor and Phase-Controlled Rectifier i + - v iG v i IG1=0IG2IG3 IG3>IG2>IG1 vac vac vO Lo ad iL vO iL π 2π ωt α F. Z. Peng: Slide 17August 1, 2004 Power Transistor and Inverter Load S1 S2 S4 S3 vdc vac t vac (PWM) RG RG0VGE1 VGE0 IGBT Gate Drive Circuit of IGBT F. Z. Peng: Slide 20August 1, 2004 Progress of Large VA Rated GTO '65 '95'90'85'80'75'70 0 3.0 2.0 1.0 Year Tu rn -o ff C ur re nt [k A ] '00 4.0 6.0 400V/5A 600V/200A 2.5kV/600A 2.5kV/1kA 2.5kV/2kA 4.5kV/2.5kA 4.5kV/2.7kA 5kV/2.5kA 6kV/2.5kA 6kV/3kA 4.5kV/3kA 5kV/4kA 6kV/6kA F. Z. Peng: Slide 21August 1, 2004 High-Voltage Power IC • 220V/1A one-chip 3-phase inverter IC • Smart power switching device module /Intelligent Power Module (IPM) • Power Electronics Building Block (PEBB) • etc. F. Z. Peng: Slide 22August 1, 2004 Chapter 1 What We have Learned: • What’s Power Electronics • How to use ideal switches to do power conversion • How to model and analyze PE circuits (basic principle) • Real switching devices (D, Thy, IGBT, MOSFET, GTO, IGCT, etc) • Snubber circuits for safer operation • Combinations of transistor(s) and diode(s) for – Bi-directional current and unidirectional voltage switches – Bi-directional current and bi-directional voltage switches (ac switch) F. Z. Peng: Slide 25August 1, 2004 Diode Rectifier (Cnt’d) VS LF VRRVL VS VL VR VS VL VRVRR D VS LF VLDF With Free-Wheeling Diode Full Bridge Rectifier F. Z. Peng: Slide 26August 1, 2004 Diode Rectifier (Cnt’d) VDC VS VSab VDC VR VSbc VSca F. Z. Peng: Slide 27August 1, 2004 Diode Rectifier (Cnt’d) VS VDC iSa iSa vSa VSab VDC VSbc VSca VSab VSbc VSca -VSab -VSbc -VSca F. Z. Peng: Slide 30August 1, 2004 Self-Commutated Power Converter - voltage-source inverter - S1 S2 S4 S3 vdc vac DF1 DF4 DF2 DF3 iac Vac DF1 S1, S4 S2, S3 DF4 DF2 DF3 DF1 DF4 iac Single Phase Full Bridge Inverter and Freewheeling Diode or Antiparallel Diode Rec.Mode Inv. Mode F. Z. Peng: Slide 31August 1, 2004 Self-Commutated Power Converter - current-source inverter - S1 S2 S4 S3 vac DB1 DB4DB2 DB3 iac Idc iac vac F. Z. Peng: Slide 32August 1, 2004 Dual Relationship of PE Circuits • Voltage-source • Voltage • Current • Parallel connection • Series connection • Inductive component • Capacitive component • Switch open • Switch close • Line-to-line voltage • Current-source • Current • Voltage • Series connection • Parallel connection • Capacitive component • Inductive component • Switch close • Switch open • Line /or phase current F. Z. Peng: Slide 35August 1, 2004 Voltage-Source Inverter (PWM) E E/2 E/2 Gap Gan Gbp Gcp GcnGbn Va Vc Vb Va=(Gap−Gan)E/2 Vb=(Gbp−Gbn)E/2 Vc=(Gcp−Gcn)E/2 Vn + - vab (PWM) F. Z. Peng: Slide 16August 15, 2005 DC/DC Converter a) Buck Converter Ein L C Eout + - D S iD iLiT Ein L C Eout + - D S iD iLiT Ein L C Eout + - D S iD iLiT i) Circuit ii) S on iii) S off v v v iv) waveforms gate of S offon Ton Toff T 0 iL iT iTiD iD 0 v EoutEin voltage current Eout = 0 ~ Ein F. Z. Peng: Slide 17August 15, 2005 DC/DC Converter b) Boost Converter Ein L C Eout + - D S iDiL iT v offon Ton Toff T 0 iL iT iTiD iD 0 v EinEout Ein L C Eout + - D S iDiL iT v Ein L C Eout + - D S iDiL iT v Eout = Ein ~ F. Z. Peng: Slide 37August 1, 2004 AC Switches: AC Power Regulator S Lo adv1 v2 F. Z. Peng: Slide 38August 1, 2004 AC Switches: Matrix Converter 3-Phase Load or Motor