Module-3a ECEN 613 Rectifier & Inverter Circuits...Single Phase Diode Rectifier – Power factor correction & Harmonic reduction techniques 1. Series resonant L-C (60Hz) tuned filter

Dr. Prasad Enjeti, Department of Electrical & Computer Engineering, Texas A&M University

http://www.ece.tamu.edu/People/bios/benjetip.htmlECEN 613Rectifiers & Inverters

ECEN 613

Rectifier & Inverter Circuits

Professor: Dr. P. Enjeti with Michael T. DanielRm. 024, WEBEmail: [email protected]

[email protected]

Textbook: Power Electronics – Converters, Applications & Design (Third edition), by: Ned Mohan et al., John Wiley

COURSE WEBPAGE: http://eCampus.tamu.edu

Module-3a

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http://Enjeti.tamu.eduECEN 613Rectifiers & Inverters

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Chapter 18 Utility Interface



Various Loads Supplied by the Utility Source

• PCC is the point of common coupling



Single Phase Diode Rectifier – Power factor correction & Harmonic reduction techniques

1. Series resonant L-C (60Hz) tuned filter

2. Parallel resonant L-C (180 Hz) tuned filter

3. Use of nonlinear inductors & capacitors

4. Active PFC – boost scheme



Single Phase Diode Rectifier – Power factor correction & Harmonic reduction techniques – Passive techniques

Series resonant L-C

Parallel resonant L-C

• Lf and Cf resonant frequency is 60Hz

• Component size and weight

• Voltage of inductor and capacitor is an issue

• Lf and Cf resonant frequency is 180Hz

• Component size and weight is of concern

• Rating of inductor and capacitor is an issue



Single Phase Diode Rectifier – Power factor correction & Harmonic reduction techniques – Passive techniques

Use of nonlinear inductors & capacitors

Disadvantages:

DC-DC

Converter

I. Takahashi etal, Application of nonlinear impedance of diodes and capacitors or inductors, IEEE IAS Annual meeting, pp 757-762, 1993



Single Phase Diode Rectifier – Power factor correction & Harmonic reduction techniques – Active Boost PFC Approach – Operating principle



Single Phase Diode Rectifier – Power factor correction & Harmonic reduction techniques – Active Boost PFC Approach – Capacitor Design



Active Boost PFC – Analysis – Continuous conduction – Inductor Design



Active Boost PFC – Analysis – Continuous conduction –

Design a single phase pf corrected boost pfc for the following

specifications:

Output power P = 1000W

Input voltage = 120V, 60Hz rms

Output voltage = 200V with voltage ripple of 2%

Assume a switching frequency of 100kHz and 2% ripple current

in inductor.



Active Boost PFC – Analysis – Continuous conduction –

Design a single phase pf corrected boost pfc for the following

specifications:

Output power P = 1000W

Input voltage = 120V, 60Hz rms

Output voltage = 200V with voltage ripple of 2%

Assume a switching frequency of 100kHz and 2% ripple current

in inductor.



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TI-Application notes of boost PFC

Documents

Module-3a ECEN 613 Rectifier & Inverter Circuits...Single Phase Diode Rectifier – Power factor correction & Harmonic reduction techniques 1. Series resonant L-C (60Hz) tuned filter