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Dear George,
Thank you very much for your information and very valuable reference. I will check it and try to correspondingly seek the solution for my own case. Kind Regards, Sunliang > From: gk@aua.gr > To: trnsys-users@lists.onebuilding.org > Date: Fri, 22 Aug 2014 15:35:47 +0300 > CC: trnsys-users@lists.onebuilding.org; hotline@transsolar.com > Subject: Re: [TRNSYS-users] Optimization at each time-step > > Dear Sunliang, > > In the past I came across the work of Brian Coffey. In his MSc thesis he prepared a platform where TRNSYS was run within TRNSYS in the same manner as I understand you want to do it. The first TRNSYS is used as the real-time optimization platform for a controller, and the second TRNSYS is used to simulate the building and the first runs inside the second. > Links for the MSc thesis, related publications and software can be found in the GENOPT site: > > http://simulationresearch.lbl.gov/GO/download.html > > Regards, > > George > ------------------------------------------------------------------- > Dr. George Kyriakarakos, Agricultural Engineer > MSc Energy Systems & Renewable Energy Sources, PhD. > Agricultural University of Athens, > Dept. of Natural Resources and Agricultural Engineering > Iera odos street, 75, Athens 11855, Greece > Tel. +30.210.5294046 (direct), Fax: +30.210.5294023 > Mobile +30.6942.046895 > e-mail: <gk@aua.gr> > -------------------------------------------------------------------- > > > ----- Original Message ----- > Από: SUNLIANG CAO <caosunliang@msn.com> > Ημερομηνία: Thursday, August 21, 2014 4:34 pm > Θέμα: [TRNSYS-users] Optimization at each time-step > Προς: "trnsys-users@lists.onebuilding.org" <trnsys-users@lists.onebuilding.org>, "hotline@Transsolar.com" <hotline@transsolar.com> > > > > Dear all, > > > > > > > > I have a question upon the optimization in > > TRNSYS at each time-step. > > > > > > > > As we know, currently, most of the > > optimization softwares, such as GenOpt, make the optimization for > > TRNSYS based > > on a series of "complete" TRNSYS simulation results. In other words, the > > optimization software calls TRNSYS, and TRNSYS will run the whole > > simulation (such > > as 1-year's simulation) and return back a result after the simulation > > completes > > > > > > > > > > > > However, in my case, I have to make the > > optimization for the control of an energy system in TRNSYS at each time-step. > > This means that, at the beginning of each time-step, I have to > > "virtually" run > > TRNSYS for the coming one time-step in the computer for many times > > (e.g. 100 > > times), and get an optimized parameter for the control of the energy system. > > Thereafter, TRNSYS "in real" run the simulation with the optimized > > control of > > the energy system for the coming one time-step. And this process will > > be > > conducted at each time-step. > > > > > > > > > > > > Another question relating to the above-mentioned > > question: how can I return to the beginning of one time-step in TRNSYS > > after the > > one time-step's simulation passes? For > > example, in a one-year's simulation, after running the simulation for > > 2968 > > hours, I would like to return to the beginning of the 2968th hour. How > > could I manage > > that in TRNSYS? Is there any way to create a type to force TRNSYS to > > return to > > the beginning of certain time-step? > > > > > > > > > > > > Thank you very much. > > > > > > > > > > > > Kind Regards, > > > > Sunliang > > > > > > _______________________________________________ > > TRNSYS-users mailing list > > TRNSYS-users@lists.onebuilding.org > > http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org > _______________________________________________ > TRNSYS-users mailing list > TRNSYS-users@lists.onebuilding.org > http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org |