power factor correction power factor correction design
play

POWER FACTOR CORRECTION POWER FACTOR CORRECTION Design - PowerPoint PPT Presentation

Jul 31, 2023 •202 likes •447 views

POWER FACTOR CORRECTION POWER FACTOR CORRECTION Design considerations for optimizing performance & cost of continuous mode boost PFC circuits by Supratim Basu,Tore.M.Undeland All rectified ac sine wave voltages with capacitive filtering

  1. POWER FACTOR CORRECTION POWER FACTOR CORRECTION Design considerations for optimizing performance & cost of continuous mode boost PFC circuits by Supratim Basu,Tore.M.Undeland

  2. All rectified ac sine wave voltages with capacitive filtering draw high amplitude discontinuous current pulses rich in harmonics , causing: � Low input power factor � High circulating currents

  3. There are many approaches to mitigate this problem : � Passive and Active power factor correction � Passive and Active filtering of network � Accepting non-sinusoidal voltage / current in the system.

  5. Passive Power Factor Correction � Simple inductive input filter � Inductor stores energy to maintain conduction throughout half cycle � Hence reduces harmonic distortation and improves power factor � But size, weight and cost limits it’s application upto 200W

  6. Active high frequency power factor correction � Makes load behave like a resistor � Near unity load power factor � Load generating negligible harmonics

  7. Types of active PFC circuits with Boost converter topologies � Hard switched � Soft switched using ZVT � Discontinuous Conduction mode (DCM) � Critical Conduction mode (CRM) � Continuous Conduction mode (CCM)

  8. Block Diagram of an active PFC Circuit of CCM Boost converter

  9. Mosfet & Diode switching waveforms showing switching losses

  10. Switching loss reduction strategies � RCD Snubber Circuits � Magnetic Snubber Circuits � Power Switch types - IGBT or MOSFET � Boost Diode Options � SiC Schottky Diodes � Single Package Series connected diodes � PFC specific single diodes

  11. RCD Snubber Circuits

  12. Magnetic Snubber Circuit

  13. Comparison of recovery time of various diodes

  14. Comparision of RECOVERY TIME and COST of various diodes Typical Part Cost in Diode Type Rating Recovery Supplier Number USD time Sic Schottky SDT12S60 12A, 600V Zero Infineon 7.69 Single package series DSEE 808CC 10A, 600V 30ns IXYS 2.46 connected Single package STTH806TTI 8A, 600V 30ns ST Micro 1.82 series connected PFC Specific 1SL9R1560P2 15A, 600V 25ns Fairchild 1.42 PFC Specific 15ETX06 15A, 600V 18ns IR 1.03

  15. Experimental Results Single Package SiC Schottky PFC Specific Diode Series Connected Diodes Diode Input AC Voltage 85 – 264V 85 – 264V 85 – 264V (RMS) Switching 100kHz 100kHz 100kHz Frequency Input Power (W) 652 1076 653 1078 642 1049 Output Power (W) 600 1006 598 998 597 1001 Efficiency 0.92 0.935 0.915 0.925 0.93 0.954

  16. Effect of Diode Recovery Current on the Switching Current at turn-on The switch turn-on peak current was the lowest for the SiC Schottky Diode and highest for the Single Package Series Diode

  17. Effect of Diode recovery current on Mosfet drain current with a SiC Diode

  18. Effect of Diode recovery current on Mosfet drain current with a PFC specific diode

  19. Effect of Diode recovery current on Mosfet drain current with a single package series connected diode

  20. Conducted EMI generated by the PFC board was measured separately for each of the three diode types: Measurements were made at 90V AC input, 600W output load with � a 3mH common mode EMI filter connected at the input circuit � Low freq part of conducted emission spectrum ( 150kHz - 1 MHz) is almost unaffected by different diode types � High freq part of conducted emission spectrum ( 1 MHz - 30MHz) is affected by diode behavior � SDT12S60 SiC Schottky diode generates lower noise � Increased EMI caused by STTH806TTI single package series connected diodes is only about 4dB µ V

  21. Low frequency conducted emission Single package series connected diode SiC Diode Single package series connected diode SiC Diode PFC Specific Diode PFC Specific Diode

  22. High frequency conducted emission SiC Diode SiC Diode Single package series connected diode Single package series connected diode PFC Specific Diode PFC Specific Diode

  23. OPTIMIZING PERFORMANCE BY DESIGN - A SUMMARY Power levels < 200W - Critical conduction mode PFC may be considered � Power levels > 200W - Hard switched CCM PFC is preferred � Power levels < 1000W & sw. freq of 100kHz - PFC specific is the best choice � Power levels > 1000W & sw. freq > 100kHz - Higher initial costs of SiC � Schottky diodes are justified Higher efficiency or higher sw. freq - ZVT resonant mode boost converter � may be considered Power levels < 600W - Older generation Mosfets like IRF460N(IR) could reduce � costs w/o affecting performance significantly

Recommend

PVMD Delft University of Technology Learning objectives 1. Voltage issues 2. Power, frequency

PVMD Delft University of Technology Learning objectives 1. Voltage issues 2. Power, frequency

Power, frequency and harmonic issues Ravi Vasudevan PVMD Delft University of Technology Learning objectives 1. Voltage issues 2. Power, frequency and harmonics issues Power output fluctuation Power factor correction Frequency

220 views • 11 slides
MPIG Minimum Practice Income Guarantee (aka Correction factor) What is the MPIG? Difference

MPIG Minimum Practice Income Guarantee (aka Correction factor) What is the MPIG? Difference

MPIG Minimum Practice Income Guarantee (aka Correction factor) What is the MPIG? Difference in funding between pre-2003 and 2004 contracts. Egton Surgery MPIG = 70 000pa Danby Surgery MPIG = 60 000pa Total MPIG for Esk

537 views • 7 slides
Annular Form Factor Film Capacitors Optimized for Short Pulse Power IEEE Power Modulator

Annular Form Factor Film Capacitors Optimized for Short Pulse Power IEEE Power Modulator

Annular Form Factor Film Capacitors Optimized for Short Pulse Power IEEE Power Modulator Conference Washington D.C. May 15, 2006 Presented by: Mr. Terry Hosking V.P. Engineering SBE Inc. Acrylate Coated Film vs. SBEs Patented Pulse

377 views • 20 slides
SCET approach to power-enhanced QED correction in B s + (M. Beneke, C. Bobeth, R.

SCET approach to power-enhanced QED correction in B s + (M. Beneke, C. Bobeth, R.

SCET approach to power-enhanced QED correction in B s + (M. Beneke, C. Bobeth, R. Szafron, Phys. Rev. Lett. 120, 011801) Robert Szafron Technische Universit at M unchen SCET Workshop 19-22 March 2018 Amsterdam Robert

1.01k views • 35 slides
Eight Truths about Correction from the Book of Proverbs 3 1. The right attitude to correction

Eight Truths about Correction from the Book of Proverbs 3 1. The right attitude to correction

10/15/2020 1 W ISDOM : L IVING S UCCESSFULLY IN A T REACHEROUS W ORLD Accepting Correction 2 1 10/15/2020 Eight Truths about Correction from the Book of Proverbs 3 1. The right attitude to correction begins with the acknowledgement of

659 views • 18 slides
1 Low-power Techniques Power-aware Architecture Designs Physical (CMOS) level Utilize low-power

1 Low-power Techniques Power-aware Architecture Designs Physical (CMOS) level Utilize low-power

Importance of Low-power Designs Cost factor for high-end systems High-end systems Lecture 24: Power-efficient Cooling and package cost &gt; 40 W: 1 W $1 Designs Air-cooled techniques: reaching limits Electricity bill

311 views • 4 slides
Practical Interpretation With a quantitative factor, like power in the etch-rate example, typically

Practical Interpretation With a quantitative factor, like power in the etch-rate example, typically

ST 516 Experimental Statistics for Engineers II Practical Interpretation With a quantitative factor, like power in the etch-rate example, typically use regression modeling: y = 0 + 1 x + or perhaps y = 0 + 1 x + 2 x 2 + . With

640 views • 22 slides
Large power factor improvement in a thermoelectric oxide using liquid electrolytes Jorge

Large power factor improvement in a thermoelectric oxide using liquid electrolytes Jorge

Conference on Modern Concepts and New Materials for Thermoelectricity - Trieste, 12 March 2019 Large power factor improvement in a thermoelectric oxide using liquid electrolytes Jorge Garca-Caadas, Lourdes Mrquez-Garca, Braulio

523 views • 21 slides
Certainty Factor certainty factor CF (is the certainty factor in the hypothesis H due to

Certainty Factor certainty factor CF (is the certainty factor in the hypothesis H due to

Certainty Factor certainty factor CF (is the certainty factor in the hypothesis H due to evidence E) ranges between -1 (denial of the hypothesis H) and +1 (confirmation of H) allows the ranking of hypotheses difference between

280 views • 5 slides
Similarity and Correction of Strings and Trees : Towards a Correction of XML Documents Agata

Similarity and Correction of Strings and Trees : Towards a Correction of XML Documents Agata

Similarity and Correction of Strings and Trees : Towards a Correction of XML Documents Agata SAVARY Universit-Franois Rabelais de Tours, Campus de Blois, Laboratoire dInformatique Seminarium IPIPAN, 24 kwietnia, 2006 String-to-string

516 views • 33 slides
INTENSIVE CORRECTION ORDERS AND COMMUNITY CORRECTION ORDERS AS ALTERNATIVES TO IMPRISONMENT

INTENSIVE CORRECTION ORDERS AND COMMUNITY CORRECTION ORDERS AS ALTERNATIVES TO IMPRISONMENT

INTENSIVE CORRECTION ORDERS AND COMMUNITY CORRECTION ORDERS AS ALTERNATIVES TO IMPRISONMENT Queensland Supreme Court August 2018 Professor Lorana Bartels School of Law and Justice University of Canberra THE LEGISLATIVE FRAMEWORK THE

434 views • 22 slides
Designed Experiments, One Factor with Two levels The simplest experimental design problem is where

Designed Experiments, One Factor with Two levels The simplest experimental design problem is where

ST 370 Probability and Statistics for Engineers Designed Experiments, One Factor with Two levels The simplest experimental design problem is where only a single factor is being studied. When the factor has only two levels, interpreting the data

554 views • 22 slides
Razor and ReCycle A M E E N A K E L Razor Razor Motivation Power Todays designs

Razor and ReCycle A M E E N A K E L Razor Razor Motivation Power Todays designs

Razor and ReCycle A M E E N A K E L Razor Razor Motivation Power Todays designs are extremely power hungry Power now a limiting factor Performance cannot be sacrificed (overall) to save on power Both situations must

1.08k views • 32 slides
Spelling Correction and the Noisy Channel The Spelling

Spelling Correction and the Noisy Channel The Spelling

Spelling Correction and the Noisy Channel The Spelling Correction Task Applications for spelling correction Word processing Phones Web search 2 Spelling Tasks Spelling

1.36k views • 51 slides
Kansas City Power &amp; Light Company EMS Reliability The Human Factor Alan Kloster IT Real

Kansas City Power &amp; Light Company EMS Reliability The Human Factor Alan Kloster IT Real

Kansas City Power &amp; Light Company EMS Reliability The Human Factor Alan Kloster IT Real Time Systems Manager Customer Overview More than 830,800 customers Service Territory Stable Regulated Customer Base Residences

127 views • 9 slides
Rating Factor 1 Review Rating Factor 1 Capacity of the Applicant 1 Rating Factor Review 2

Rating Factor 1 Review Rating Factor 1 Capacity of the Applicant 1 Rating Factor Review 2

Fiscal Year (FY) 2020 Indian Housing Block Grant (IHBG) Competitive Grant Application Review Training Rating Factor 1 Review Rating Factor 1 Capacity of the Applicant 1 Rating Factor Review 2 This module will introduce all Rating Factors

576 views • 25 slides
Real Application of Factor Investing in SA Ann Sebastian STANLIB FACTOR INVESTING WHAT IS IT?

Real Application of Factor Investing in SA Ann Sebastian STANLIB FACTOR INVESTING WHAT IS IT?

Real Application of Factor Investing in SA Ann Sebastian STANLIB FACTOR INVESTING WHAT IS IT? A factor is a broad, persistent driver of long-term returns SA specific factors are Growth, Quality, Momentum, Analyst Sentiment and Valuation

667 views • 12 slides
Introduction to SVG &amp; AHF LIVELINE ELECTRONICS KOLKATA Confidential Document WHAT IS POWER

Introduction to SVG &amp; AHF LIVELINE ELECTRONICS KOLKATA Confidential Document WHAT IS POWER

Introduction to SVG &amp; AHF LIVELINE ELECTRONICS KOLKATA Confidential Document WHAT IS POWER FACTOR EVERYONE KNOWS Real Power (kW) is the power that actually powers the equipment and performs useful, productive work. It is also called

650 views • 26 slides
Using Timing-Error Detection and Correction for Transient-Error Tolerance and Adaptation to PVT

Using Timing-Error Detection and Correction for Transient-Error Tolerance and Adaptation to PVT

A Power-Efficient 32b ARM ISA Processor Using Timing-Error Detection and Correction for Transient-Error Tolerance and Adaptation to PVT Variation David Bull 1 , Shidhartha Das 1 , Karthik Shivashankar 1 , Ganesh Dasika 2 , Krisztian Flautner 1 ,

778 views • 41 slides
Quality factor Figure-of-merit for any oscillator Stored energy In the system Quality (or

Quality factor Figure-of-merit for any oscillator Stored energy In the system Quality (or

Quality factor Figure-of-merit for any oscillator Stored energy In the system Quality (or Q- ) factor Power dissipated per cycle P comes from imperfection in the system For copper (normal-conducting) cavities this

158 views • 12 slides
Load &amp; Resistance Factor Design New Bridge Design Method Load &amp; Resistance Factor

Load &amp; Resistance Factor Design New Bridge Design Method Load &amp; Resistance Factor

Load &amp; Resistance Factor Design New Bridge Design Method Load &amp; Resistance Factor Design Session Topics Brief History What is LRFD? Why LRFD? When? How? What to expect? Brief History AASHTO Subcommittee on

708 views • 37 slides
Wavefront compensation for deep tissue optical microscopy Full correction System correction 60

Wavefront compensation for deep tissue optical microscopy Full correction System correction 60

Wavefront compensation for deep tissue optical microscopy Full correction System correction 60 mW 300 mW vs. 5 m 5 m Depth = 800 micron Meng Cui Tang et.al. Proceedings of the National Academy of Sciences 109, 8434 8439 (2012). HHMI

698 views • 20 slides
ERROR DETECTON &amp; CORRECTION Error Detection EDC= Error Detection and Correction bits

ERROR DETECTON &amp; CORRECTION Error Detection EDC= Error Detection and Correction bits

ERROR DETECTON &amp; CORRECTION Error Detection EDC= Error Detection and Correction bits (redundancy) D = Data protected by error checking, may include header fields Error detection not 100% reliable! protocol may miss some errors,

320 views • 18 slides
PITCH CORRECTION PITCH CORRECTION THE PROBLEM Typically, musical systems reduce the

PITCH CORRECTION PITCH CORRECTION THE PROBLEM Typically, musical systems reduce the

BENJAMIN VILLALONGA CORREA PITCH CORRECTION PITCH CORRECTION THE PROBLEM Typically, musical systems reduce the continuous spectrum to a small set of allowed frequencies. Equal temperament: log of frequencies are equally spaced.

166 views • 14 slides

More recommend