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Inverters
 

Inverters

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inverters

inverters

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    Inverters Inverters Presentation Transcript

    • Inverter (Konverter DC – AC) Pekik Argo Dahono
    • Penggunaan Inverter
      • Pengendalian motor ac
      • UPS
      • Catu daya ac
      • Ballast elektronik
      • Microwave heating
      • Static VAR generators
      • FACTS (Flexible AC Transmission System)
      • Filter daya aktif
      • Penyearah
    • Variable Speed Drives
    • Uninterruptibe AC Power Supplies
    • Basic Concepts
    • Properties of Ideal Inverters
      • DC input is free of ripple
      • AC output is sinusoidal or has a controllable waveshape
    • Klasifikasi Inverter
      • 1) Menurut jumlah fasa
      • - satu-fasa
      • - banyak fasa
      • 2) Menurut sumber dc:
      • - sumber tegangan
      • - sumber arus
      • 3) Menurut metoda komutasi:
      • - komutasi paksa
      • - komutasi natural
      • 4) Menurut metoda pengaturan gelombang ac:
      • - gelombang persegi
      • - pulse amplitude modulation (PAM)
      • - pulse width modulation (PWM)
      • 5) Menurut jumlah level gelombang keluaran:
      • - dua level
      • - banyak level
    • Inverter Satu-Fasa
    • Inverter Center-Tap
    • Inverter Center-Tap
    • Inverter Center-Tap
    • Analisis Tegangan Output Inverter Center-Tap
    • Inverter Center-Tap
      • Sederhana
      • Komponen minimum
      • Harus pakai trafo
      • Cocok untuk daya rendah (< 1 kW)
      • Cocok untuk tegangan dc yang rendah
      • Pengaturan tegangan dilakukan dengan menggunakan trafo ferroresonance.
    • Half-Bridge Inverter
    • Analisis Tegangan Output Inverter Half-Bridge
    • Inverter Thyristor
    • Inverter Thyristor
    • Inverter Full-Bridge
    • Inverter Full-Bridge
    • Inverter Tiga-Fasa
    • Inverter Tiga-Fasa
    • Inverter Tiga-Fasa
    • Simulation
    • Simulated Result
    • Teknik PWM
      • Sampling Based PWM:
      • Natural sampling (Carrier Based)
      • Regular sampling
      • 2. Programmed PWM:
      • Eliminated Harmonics
      • Minimum Harmonics
    • Teknik PWM If f c /f r integer, the technique is called synchronous otherwise asynchronous
    • Regular Sampling
    • Simulation
    • Simulation Results
    • Analisis Tegangan Keluaran nverter PWM Satu-Fasa
    • Simulation result under nonsinusoidal reference
    • Analisis Tegangan keluaran
      • Maximum peak output voltage is E d /2. This value is less than the fundamental component of square-wave output voltage.
      • The output current waveform is almost sinusoidal when the switching frequency is high.
      • Because the switching frequency is high, the switching losses are also high.
    • Analisis Riak
    • Analisis Riak
    • Programmed PWM
    • Teknik PWM Untuk Inverter Satu-Fasa Full-Bridge
    • Three-Phase PWM Inverter
    • Teknik PWM Inverter Tiga-Fasa
    • Simulation
    • Simulation Results
    • Teknik PWM Inverter Tiga-Fasa
    • Teknik PWM Inverter Tiga-Fasa
    • Simulation Result
    • Switching Function Concept
    • Current-Type Inverters Current-Type Inverter Voltage-Type Inverter
    • Autosequential Commutation Current-Source Inverters
    • Current-Source Inverter with Individual Commutation
    • Current-Source Inverter with Fourth-Leg Commutation
    • Duality Between Voltage-Type and Current-Type Inverters
    • Duality Between Voltage-Type and Current-Type Inverters
    • Current-Type Inverters
    • Current-Type Inverters
      • At present, voltage-type inverters are more popular than current-type inverters.
      • Current-type inverters are commonly used as PWM rectifiers.
      • Advances on superconductor will increase the use of current-type inverters.
      • At present, several manufacturers introduce reverse-blocking devices on one module.
      • Current-type inverters are introduced for medium voltage ac drives because the input and output currents are almost sinusoidal, inherently four-quadrants, and short-circuit proof.
    • Space-Vector PWM
    • Space Vector PWM
    • Space Vector PWM
    • Two-Level Inverters
      • High-voltage applications need high-voltage switching devices.
      • Series connection of switching devices are difficult to control.
      • Output waveforms can only be improved at the expense of switching losses.
      • High-voltage applications may need bulky and expensive transformers.
    • Diode clamped multilevel inverters Three-level inverter Five-level inverter
    • Flying capacitor inverters Three level inverters Five level
    • Cascade connection of single-phase inverters Three level inverter Five level inverter