Power Electronics Introduction
PPoowweerr EElleeccttrroonniiccss Introduction
PEREC Outline 1. What is power electronics? The history Ⅲl. Applications MV. a simple example V. About this course 2
Power E l ect r o n cs i 2 Outline Outline I. What is power electronics? What is power electronics? II. The history The history III. Applications Applications IV. A simple example A simple example V. About this course About this course
PEREC I. What is power electronics? 1)Definition 2)Relation with information electronics 3The interdisciplinary nature 4)Position and significance in the human society 3
Power Electron cs i 3 I. What is power electronics? What is power electronics? 1) Definition Definition 2) Relation with information electronics Relation with information electronics 3) The interdisciplinary nature The interdisciplinary nature 4) Position and significance in the human society Position and significance in the human society
PEREC 1)Definition ◆ Power electronics is the electronics applied to conversion and control of electric power Range of power scale milliwatts(mW)-+megawatts(MW)-+gigawatts(GW) 4 A more exact explanation The primary task of power electronics is to process and control the flow of electric energy by supplying voltages and currents in a form that is optimally suited for user loads
Power Electron cs i 4 Power Electronics Power Electronics: A more exact explanation A more exact explanation: is the electronics applied to conversion and control of electric power. Range of power scale : Range of power scale : milliwatts(mW) megawatts(MW) gigawatts(GW) 1) Definition Definition The primary task of power electronics is to process and control the flow of electric energy by supplying voltages and currents in a form that is optimally suited for user loads
PEREC Conversion of electric power Electric t other names for electric Power Power Power nput output power converter∷ Converter Power converter Converter Control -Switching converter input Power electronic circuit Power electronic converter TWo types of electric power Changeable properties in conversion DC(Direct Current) Magnitude AC(Alternating Current) Frequency, magnitude number ot phases 5
Power Electron cs i 5 Conversion of electric Conversion of electric power Other names for electric Other names for electric power converter: power converter: -Power converter -Converter -Switching converter -Power electronic circuit -Power electronic converter Electric Power Converter Power output Power input Control Control input Frequency, magnitude, Frequency, magnitude, number of phases number of phases AC (Alternating Current) AC (Alternating Current) DC(Direct Current) DC(Direct Current) Magnitude Magnitude Changeable properties in Changeable properties in conversion conversion Two types of electric power Two types of electric power