Carol,
Yes, that would be the correct approach. The inverter that is built in to Type194 takes the DC power directly from the array and converts it to AC. You would want a charge controller (regulator) that charged the battery with DC power and only after that converted to AC power with an inverter.
Best,
David
On 2/24/2011 09:28, Pascual, Carol wrote:Hello,
I would like to simulate a PV system with energy storage and I think that I can´t use the type 194b PV-Inverter. I have to use the type 194 then a regulator-inverter (type 48d) and finally the battery (type 47c). Am I right?
Thanks in advance,
Carol
De: David Bradley [mailto:bradley@tess-inc.com]
Enviado el: 12 March 2010 18:51
Para: Dimas Firmanda Al Riza
CC: Maria Victoria Cambronero Vazquez; trnsys-users@cae.wisc.edu
Asunto: Re: [TRNSYS-users] batteries models
Dimas,
I am not sure that changing the cell voltage is valid. I think that the Shepherd model assumes a certain shape to the battery's charge / discharge curve that is inherent to lead acid batteries and not as valid to other battery types. Someone please correct me if I am wrong about that.
Best,
David
Dimas Firmanda Al Riza wrote:Dear David and Maria,
I'm also doing simulation that required different type of battery from the existing battery type available in TRNSYS library,
I need to simulate 12V battery bank, that consist of 4 @12V 100Ah battery. Type 47b in TRNSYS library have a default voltage value of 2,5V each cell, Can I simply change this value? or do I need to make some other modification for this component?
David, I'd like to read the paper you've offered to maria, would you send me also?
Thank you very much
-dimas-
ME Student
UTPOn Sat, Mar 13, 2010 at 12:18 AM, David Bradley <bradley@tess-inc.com> wrote:
Maria,
You are correct that the battery models in TRNSYS are for lead-acid cells. I was directed to a paper some years ago that suggested a method for modeling lithium-ion batteries. The method comes down to curve fitting the data that you get from a manufacturer's catalog into a few polynomials. I had a hard time following the some parts of the paper and never got a chance to implement the model but it seemed to me as though the method could be extended to other battery types. I'll forward you the paper in a separate email. If anyone else has seen some modeling research in this area, I'd be quite interested in hearing about it to improve on the existing battery models.
Best,
David
Maria Victoria Cambronero Vazquez wrote:Hi,
I´d need to know if there is a model of Li-Ion Battery or if I´m able to characterize any kind of battery using an existing type (in spite of being lead-acid battery).
Thank you very much!
Maria
Este mensaje se dirige exclusivamente a su destinatario, y puede contener información confidencial sometida a secreto profesional, o cuya divulgación esté legalmente prohibida. Cualquier opinión en él contenida es exclusiva de su autor y no representa necesariamente la opinión de la empresa. Si ha recibido este mensaje por error, le rogamos nos lo comunique de forma inmediata por esta misma vía y proceda a su eliminación, así como a la de cualquier documento adjunto al mismo. El correo electrónico vía Internet no es seguro y no se puede garantizar que no haya errores ya que puede ser interceptado, modificado, perdido o destruido, o contener virus. Cualquier persona que se ponga en contacto con nosotros por correo electrónico se considerará que asume estos riesgos.This e-mail is addressed exclusively to the recipient and may contain privileged information under a professional confidential agreement or it may be against the law to disclose its contents. Any opinion contained in it belongs exclusively to his/her author and does not necessarily reflect the company’s view. If you receive this e-mail in error, please let us know immediately (by return e-mail) and proceed to its destruction, as well as any document attached to it. The sending of e-mails through the Internet is not safe and, therefore, error-free communications cannot be guaranteed, as they can be intercepted, changed, misled or destroyed or they might contain a virus. Any user contacting us through e-mails shall be understood to be assuming these risks.
_______________________________________________TRNSYS-users mailing listTRNSYS-users@cae.wisc.eduhttps://www-old.cae.wisc.edu/mailman/listinfo/trnsys-users
--***********************************************************************Thermal Energy System Specialists (TESS), LLCDavid BRADLEY 22 N. Carroll Street - Suite 370Partner Madison, WI 53703USAP: +1.608.274.2577F: +1.608.278.1475E-mail: bradley@tess-inc.comWeb Pages: http://www.tess-inc.com and http://www.trnsys.com***********************************************************************
_______________________________________________
TRNSYS-users mailing list
TRNSYS-users@cae.wisc.edu
https://www-old.cae.wisc.edu/mailman/listinfo/trnsys-users
_______________________________________________TRNSYS-users mailing listTRNSYS-users@cae.wisc.eduhttps://www-old.cae.wisc.edu/mailman/listinfo/trnsys-users
--***********************************************************************Thermal Energy System Specialists (TESS), LLCDavid BRADLEY 22 N. Carroll Street - Suite 370Partner Madison, WI 53703USAP: +1.608.274.2577F: +1.608.278.1475E-mail: bradley@tess-inc.comWeb Pages: http://www.tess-inc.com and http://www.trnsys.com***********************************************************************https://mailman.cae.wisc.edu/listinfo/trnsys-users_______________________________________________ TRNSYS-users mailing list TRNSYS-users@cae.wisc.edu
-- *************************** David BRADLEY Principal Thermal Energy Systems Specialists, LLC 22 North Carroll Street - suite 370 Madison, WI 53703 USA P:+1.608.274.2577 F:+1.608.278.1475 d.bradley@tess-inc.comhttp://www.trnsys.com
_______________________________________________
TRNSYS-users mailing list
TRNSYS-users@cae.wisc.edu
https://mailman.cae.wisc.edu/listinfo/trnsys-users