Links

From Mozda Converter

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*[http://www.mozda.net/projects/windmill/ Mozda Windmill page]: contains all files about windmill projects. e.g. [http://www.mozda.net/projects/windmill/windmill-control-schematic.pdf schematic] of the electrical system( very useful!) and [http://floatingsun.net/udai/files/siteassess.pdf presentation] full of pics on the various renewable energy R&D in India. Covers Mozda, Bilgaon, ARTI and others.
*[http://www.mozda.net/projects/windmill/ Mozda Windmill page]: contains all files about windmill projects. e.g. [http://www.mozda.net/projects/windmill/windmill-control-schematic.pdf schematic] of the electrical system( very useful!) and [http://floatingsun.net/udai/files/siteassess.pdf presentation] full of pics on the various renewable energy R&D in India. Covers Mozda, Bilgaon, ARTI and others.
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*[http://mozda.net/projects/ledlamps/LEDlightingforCUDenverPLACES.pdf Mozda LED lighting] presentation.
*[http://www.ecozen.com Rashron]: maker of pedal power bikes & electric assist kits in India.
*[http://www.ecozen.com Rashron]: maker of pedal power bikes & electric assist kits in India.
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=== Human Torque speed curve ===
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[http://users.frii.com/katana/biketext.html Amazing website] which contains Torque Speed curve for bicycle riders!
===Axial Flux Generators===
===Axial Flux Generators===
*Hugh Piggots [http://www.scoraigwind.com/axialplans/index.htm Axial flux windmill plans].
*Hugh Piggots [http://www.scoraigwind.com/axialplans/index.htm Axial flux windmill plans].
*Axial flux generator for [http://www.gulland.ca/homenergy/lindabike.htm pedal power]. michael is using '''this''' design.
*Axial flux generator for [http://www.gulland.ca/homenergy/lindabike.htm pedal power]. michael is using '''this''' design.
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*Good Page on [http://www.stardrivedevice.com/over-unity2.html Fundamental formulas for generator design].
===UIUC Converter Design===
===UIUC Converter Design===
*UIUC design: Design files of UIUC guys in pdf format, uploaded on udai website. [http://floatingsun.net/udai/files/project3_proposal.pdf proposal], [http://floatingsun.net/udai/files/project3_presentation.pdf presentation], [http://floatingsun.net/udai/files/project3_appendix.pdf appendix], [http://floatingsun.net/udai/files/project3_final_paper.pdf final report], [http://floatingsun.net/udai/files/project3_design_review.pdf design review].  
*UIUC design: Design files of UIUC guys in pdf format, uploaded on udai website. [http://floatingsun.net/udai/files/project3_proposal.pdf proposal], [http://floatingsun.net/udai/files/project3_presentation.pdf presentation], [http://floatingsun.net/udai/files/project3_appendix.pdf appendix], [http://floatingsun.net/udai/files/project3_final_paper.pdf final report], [http://floatingsun.net/udai/files/project3_design_review.pdf design review].  
Appendix has all the circuits & schematics, is thus most important document for study.
Appendix has all the circuits & schematics, is thus most important document for study.
 +
*Datasheets
 +
for main powerelectronics: [http://www.datasheet4u.com/download.php?id=496860 Mosfet], [http://www.onsemi.com/pub/Collateral/MR750-D.PDF MR752 diode], [http://www.st.com/stonline/books/pdf/docs/11644.pdf Schottky diode], [http://www.micrometals.com/pcparts/torcore4.html T106-26 Toroidal Inductor], [http://www.bussmann.com/library/bifs/2000.PDF fuses ABC-6 & ABC-15],
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for PWM control components: [http://www.ortodoxism.ro/datasheets/texasinstruments/tl598.pdf TL598 PWM controller], [http://www.datasheets.org.uk/datasheet.php?article=2331182 MIC4427 MosFET driver], [http://www.fairchildsemi.com/ds/TL%2FTL431A.pdf TL431 shunt regulator]
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*Modeling
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[http://www.cadence.com/products/si_pk_bd/downloads/pspice_models/index.aspx Pspice models] of power electronic components from various vendors! (thanks to Abhijit!)
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, and Fairchild Power Mosfet libraries [http://www.cadence.com/downloads/orcad/files/pspice_models/fairchild.olb this] and
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[http://www.cadence.com/downloads/orcad/files/pspice_models/fairchild.lib this].
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[https://ec.irf.com/v6/en/US/adirect/ir?cmd=advFrame&pathIndex=0&queryPageKey=1557&advisorCmd=continue&startstate=page_Parametric%20Search%20DC-DC&startstate=answer_Parametric%20Search%20DC-DC_DC-DC%20Primary%20Side%20MOSFETs Other Mosfets available with International Rectifiers]
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===Tim Nolan's design===
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*[http://timnolan.com/ Tim Nolan], an electronics hobbyist, has designed a custom [http://timnolan.com/ppt/ppt.htm MPPT controller]. (Maximum Power Tracking Controller) Though built for low voltages right now, can be modified for increased voltage. It is very cheap yet sophisticated, and can boost solar array power by 30% Michael say, it should cost around 50$
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*[http://www.redrok.com/electron.htm redrok.com Electronic Projects]: The other site that Michael wrote about in his most recent e-mail. It has descriptions and links to various electronic circuits and many of which are applicable to power generation. Th peak power tracker project suggests a very simple circuit to do MPPT, and my turn out to be cheaper than Nolan's circuit.
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*A [http://www.redrok.com/neat.htm#mppt good survey] of MPPT patents.
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===[http://www.tunecharger.com/index-182612.htm Tunecharger] converter===
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*patented & designed by Jean-Michel Cour. He has graciously allowed noncommercial replication of tunecharger. Extensive documentation is available [http://www.tunecharger.com/download-26417.htm here] and [http://www.tunecharger.com/download-28017.htm here].
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*Right now designed as a 20W battery charger, from any nonlinear source. (wind+solar+pedal+hydel) and any battery (6-18V). It can also charge from source at lower voltage than sinks.
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*It is based on boost converter architect, with clever MPPT implementation. Thus it can track max power point.
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*Initial parts cost seems dirt cheap! Basic ckt parts cost <40$
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*An active [http://tech.groups.yahoo.com/group/TuneCharger/ yahoogroup] of hobbyists is tweaking, replicating, furthering the tunecharger.
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*Tested for all above sources & batteries.
===Other converters===
===Other converters===
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*Other commercial charge controllers apart from Outback. [http://www.beselfreliant.com/marketplace/products/2004Catalog/36-39%20Charge%20Controllers.pdf link] It also explains what is '''MPPT'''. Maximum Power point tracking.
*Other commercial charge controllers apart from Outback. [http://www.beselfreliant.com/marketplace/products/2004Catalog/36-39%20Charge%20Controllers.pdf link] It also explains what is '''MPPT'''. Maximum Power point tracking.
*[http://store.solar-electric.com/sb2000.html Blue Sky MPPT charge controller]. a cheaper 200$ controller.
*[http://store.solar-electric.com/sb2000.html Blue Sky MPPT charge controller]. a cheaper 200$ controller.
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*[http://timnolan.com/ Tim Nolan], an electronics hobbyist, has designed a custom [http://timnolan.com/ppt/ppt.htm MPPT controller]. I am not sure about its relevence to pedal power right now, but is very cheap, and can boost solar array power by 30% Michael say, i should cost around 50$
 
===Learning sites===
===Learning sites===
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Power electronics & converter links
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*Free [http://electronics-lab.com/downloads/schematic/013/ Pspice student version]
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*Circuit design [http://www.smps.us/tools.html softwares] and [http://www.smps.us/power-supply.html Tutorial]. It also has many excellent [http://www.smps.us/references.html Power electronics books & handbooks].
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*Great [http://www.smps.us/smpsdesign.html SMPS design site] with link on [http://www.powerdesigners.com/InfoWeb/design_center/articles/DC-DC/converter.shtm DCDC converters]
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*[http://dave.uta.edu/dillon/pspice/index.php Pspice tutorials]
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*DC-DC converter manual [http://www.google.com/url?sa=t&ct=res&cd=1&url=http%3A%2F%2Fwww.jaycar.com.au%2Fimages_uploaded%2Fdcdcconv.pdf&ei=0PF9RfznKIW6gAPg-OngBQ&usg=__xNH4mXcwchf7L8n7dfW14iRuqH8=&sig2=P1EDv6J1MSTzRPOjlai5Aw DC Converters-a primer]
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* A buck converter design [http://focus.ti.com/download/aap/utilities/buck.xls excel sheet].
===Misc===
===Misc===
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*Good [http://www.intersil.com/data/an/an126.pdf tutorial] on battery charging & detecting EOC (end of charge).
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*Two popular battery management ICs, suggested by Michael. Old [http://focus.ti.com/docs/prod/folders/print/uc3906.html UC3906] & new TI controller [http://focus.ti.com/docs/prod/folders/print/bq2031.html BQ2031]. It can sense the voltage level of the battery and apply the appropriate charging algorithm.
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*[http://www.buchmann.ca/toc.asp Battery basics] everyone should know :-) A detailed, easy to read guide. Also a [http://www.buchmann.ca/faq.asp FAQ]
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*[http://en.wikipedia.org/wiki/SEPIC_converter SEPIC converter]. This is non-inverting buck boost converter, giving largest flexibility with i/p, o/p voltages.

Current revision as of 08:05, 24 September 2007

Contents

Mozda & Rashron

  • Mozda: Mozda collective's website
  • Mozda Windmill page: contains all files about windmill projects. e.g. schematic of the electrical system( very useful!) and presentation full of pics on the various renewable energy R&D in India. Covers Mozda, Bilgaon, ARTI and others.
  • Mozda LED lighting presentation.
  • Rashron: maker of pedal power bikes & electric assist kits in India.

Human Torque speed curve

Amazing website which contains Torque Speed curve for bicycle riders!

Axial Flux Generators

UIUC Converter Design

Appendix has all the circuits & schematics, is thus most important document for study.

  • Datasheets

for main powerelectronics: Mosfet, MR752 diode, Schottky diode, T106-26 Toroidal Inductor, fuses ABC-6 & ABC-15, for PWM control components: TL598 PWM controller, MIC4427 MosFET driver, TL431 shunt regulator

  • Modeling

Pspice models of power electronic components from various vendors! (thanks to Abhijit!) , and Fairchild Power Mosfet libraries this and this. Other Mosfets available with International Rectifiers

Tim Nolan's design

  • Tim Nolan, an electronics hobbyist, has designed a custom MPPT controller. (Maximum Power Tracking Controller) Though built for low voltages right now, can be modified for increased voltage. It is very cheap yet sophisticated, and can boost solar array power by 30% Michael say, it should cost around 50$
  • redrok.com Electronic Projects: The other site that Michael wrote about in his most recent e-mail. It has descriptions and links to various electronic circuits and many of which are applicable to power generation. Th peak power tracker project suggests a very simple circuit to do MPPT, and my turn out to be cheaper than Nolan's circuit.
  • A good survey of MPPT patents.

Tunecharger converter

  • patented & designed by Jean-Michel Cour. He has graciously allowed noncommercial replication of tunecharger. Extensive documentation is available here and here.
  • Right now designed as a 20W battery charger, from any nonlinear source. (wind+solar+pedal+hydel) and any battery (6-18V). It can also charge from source at lower voltage than sinks.
  • It is based on boost converter architect, with clever MPPT implementation. Thus it can track max power point.
  • Initial parts cost seems dirt cheap! Basic ckt parts cost <40$
  • An active yahoogroup of hobbyists is tweaking, replicating, furthering the tunecharger.
  • Tested for all above sources & batteries.

Other converters

  • Outback converter MX60 superb 98% efficiencies, 150VDC max input voltage,variable stepdown capability. Its data sheet is here. It has way too many features, hence is costly.
  • Other commercial charge controllers apart from Outback. link It also explains what is MPPT. Maximum Power point tracking.
  • Blue Sky MPPT charge controller. a cheaper 200$ controller.

Learning sites

Misc

  • Good tutorial on battery charging & detecting EOC (end of charge).
  • Two popular battery management ICs, suggested by Michael. Old UC3906 & new TI controller BQ2031. It can sense the voltage level of the battery and apply the appropriate charging algorithm.
  • Battery basics everyone should know :-) A detailed, easy to read guide. Also a FAQ
  • SEPIC converter. This is non-inverting buck boost converter, giving largest flexibility with i/p, o/p voltages.
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