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Today's Topics:
  1. Re: TRNSYS-users Digest, Vol 157, Issue 7 (David BRADLEY)
---------- Forwarded message ----------
From:Â David BRADLEY <d.bradley@tess-inc.com>
To:Â "TRNSYS users mailing list at OneBuilding.org" <trnsys-users@lists.onebuilding.org>
Cc:Â Amit Verma <amitverma758@gmail.com>
Bcc:Â
Date:Â Tue, 9 Jan 2018 10:59:15 -0600
Subject:Â Re: [TRNSYS-users] TRNSYS-users Digest, Vol 157, Issue 7
Amit,
 I am not clear as to whether you are asking for an explanation of the equation V = max(0,time-10) or whether you are asking about the format of the characteristic of a photovoltaic's I-V curve.
 If it is the first case then the max(:,:) function returns the maximum of two arguments. TIME is a built-in variable. The equation sets a variable (V) to the maximum of zero or the present simulation time minus 10.
 If you want to know about the characteristic curve of a PV I would recommend reading the 04-MathematicalReference manual section about the PV Type that you are using.
kind regards,
 David
On 01/09/2018 07:23, Amit Verma via TRNSYS-users wrote:
Hello Everyone !!!
Can anyone describe how to write Eqn for I-V Curve in Photovoltaic i.e V=max (0,time-10)
RegardsAmit Verma
On Tue, Jan 9, 2018 at 2:03 PM, <trnsys-users-request@lists.onebuilding.org > wrote:
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Today's Topics:
  1. Re: curve of WTG (MACIAS VICENTE, SERGIO)
---------- Forwarded message ----------
From:Â "MACIAS VICENTE, SERGIO" <SMACIAS@external.gamesacorp.com >
To:Â "'David BRADLEY'" <d.bradley@tess-inc.com>, "TRNSYS users mailing list at OneBuilding.org" <trnsys-users@lists.onebuilding.org >
Cc:Â
Bcc:Â
Date:Â Tue, 9 Jan 2018 08:33:50 +0000
Subject:Â Re: [TRNSYS-users] curve of WTG
Hello,
Thank you very much. The fault was that.Â
Best regards.
Â
Sergio MacÃas Vicente
Offgrid Technical
Siemens Gamesa Offgrid
Gamesa Corporación Tecnológica
Â
De: David BRADLEY [mailto:d.bradley@tess-inc.com
]
Enviado el: viernes, 22 de diciembre de 2017 18:55
Para: MACIAS VICENTE, SERGIO; TRNSYS users mailing list at OneBuilding.org
Asunto: Re: [TRNSYS-users] curve of WTGÂ
Sergio,
 I suggested the distributor route because this forum is (supposedly) for users to help users whereas the distributors are (hopefully) more likely to respond to tech support questions like yours.
I did look at the project you sent. The wind turbine is internally controlled so that if the wind speed exceeds the rated wind speed (specified in the data file) the rotors change pitch to shed wind so that the turbine is not damaged. When the incident wind speed exceeds rated wind speed the turbine will produce its rated power.
kind regards,
 David
Â
Â
On 12/20/2017 01:50, MACIAS VICENTE, SERGIO wrote:
Hello,
I attach all the files. Surely someone can help me. It is a simple example to verify that the behavior of the wind turbine is correct.Â
Thank you.
Â
Best regards.
Â
Sergio MacÃas Vicente
Offgrid Technical
Siemens Gamesa Offgrid
Gamesa Corporación Tecnológica
Â
De: David BRADLEY [mailto:d.bradley@tess-inc.com
]
Enviado el: martes, 19 de diciembre de 2017 21:19
Para: TRNSYS users mailing list at OneBuilding.org
CC: MACIAS VICENTE, SERGIO
Asunto: Re: [TRNSYS-users] curve of WTGÂ
Sergio,
 I would recommend that you send your project to your distributor so that they can determine why the turbine is giving less power than expected.
 The distributor will need to have your project (*.tpf file) and the wind turbine data file that you are using as well as any other files needed in order to run the simulation.
kind regards,
 David
Â
Â
On 12/19/2017 09:47, MACIAS VICENTE, SERGIO via TRNSYS-users wrote:
Hello, my name is Sergio.
I have a question. I have the curve of a wind turbine as in the image. The behavior is not correct, since at 25 m / s they produce 95 kW. Can you insert a curve in the next way?Â
Thanks.
Â
Best regards.
Â
Â
Â
Sergio MacÃas Vicente
Offgrid Technical
Siemens Gamesa Offgrid
Gamesa Corporación Tecnológica
Â
Crta. Pozaldez km.1
47400 Medina del Campo
Spain
Â
smacias@external.gamesacorp.co
m Â
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--***************************David BRADLEYPrincipalThermal Energy Systems Specialists, LLC22 North Carroll Street - suite 370Madison, WIÂ 53703 USAÂP:+1.608.274.2577F:+1.608.278.1475d.bradley@tess-inc.comÂhttp://www.tess-inc.comhttp://www.trnsys.com
--***************************David BRADLEYPrincipalThermal Energy Systems Specialists, LLC22 North Carroll Street - suite 370Madison, WIÂ 53703 USAÂP:+1.608.274.2577F:+1.608.278.1475d.bradley@tess-inc.comÂhttp://www.tess-inc.comhttp://www.trnsys.com
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-- *************************** 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.com http://www.tess-inc.com http://www.trnsys.com
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