Chun Kwong, Type94 can act as a PV panel that is directly connected to a load or it can act as a PV panel that is attached to a maximum power point tracker (MPPT). If your PV is directly connected to a load, then you set input 3 to that load voltage (which may be calculated by an equation or by another model). Type94 will iterate internally to find where its operating point is on the PV's current-voltage characteristic curve and will output the voltage as output 1. Typically this will be the same as the input voltage once convergence is reached. If your PV has an MPPT on it then you do not need to worry about setting the input voltage and you should only pay attention to outputs 4, 6, and 7. Kind regards, David a8304506@graduate.hku.hk wrote: Dear Trnsys users. I am going to simulate a PV system using the type94 component. However, I don't know the difference between the load voltage in input 3 and the array voltage in output 1. Can anyone advise? Thank you! Best Regards LEE, Chun Kwong Research assistant Division of Building Science and Technology City University of Hong Kong -- *********************************************************************** Thermal Energy System Specialists (TESS), LLC David BRADLEY 22 N. Carroll Street - Suite 370 Partner Madison, WI 53703 USA P: +1.608.274.2577 F: +1.608.278.1475 E-mail: bradley@tess-inc.com Web Pages: http://www.tess-inc.com and http://www.trnsys.com *********************************************************************** |