Simulink model pv array mdl
Dating > Simulink model pv array mdl
Download links: → Simulink model pv array mdl → Simulink model pv array mdl
Description A 100-kW PV array is connected to a 25-kV grid via a DC-DC boost converter and a three-phase three-level Voltage Source Converter VSC. The default value is 0. An optimization function determines this parameter to fit the module data. C Defines variation of Isc as a function of temperature. If it is there then let me know. The default value is 40. The default value is 0.
Description The PV Array block implements an array of photovoltaic PV modules. The array is built of strings of modules connected in parallel, each string consisting of modules connected in series. This block allows you to model preset PV modules from the National Renewable Energy Laboratory NREL System Advisor Model Jan. The PV Array block is a five parameter model using a current source IL light-generated current , diode I0 and nI parameters , series resistance Rs, and shunt resistance Rsh to represent the irradiance- and temperature-dependent I-V characteristics of the modules. Parallel strings Number of strings of series-connected modules that are connected in parallel. The default value is 40. Series-connected modules per string Number of PV modules connected in series in each string. The default value is 10. Module Select User-defined or a preset PV module from the NREL System Advisory Model database. Over 10,000 modules are listed from main manufacturers, sorted in alphabetical order. When you select a module, this data from the NREL database updates when you apply your changes: Ncell, Voc, Isc, Vmp, Imp maximum power, as well as temperature coefficients of Voc and Isc. The function computes the five corresponding model parameters IL, I0, nI, Rsh, Rs using an optimization function and displays them on the right side of the dialog box. When you select User-defined, you can enter your own specifications for the module data Ncell, Voc, Isc, Vmp, Imp, and temperature coefficients of Voc and Isc. When you apply the changes, the function computes the five model parameters. The default value is 1Soltech 1STH-215-P. Maximum Power W Power obtained at maximum power point Vmp, Imp. The default value is 213. Cells per module Ncell Number of cells per module. The default value is 60. Open circuit voltage Voc V Voltage obtained when array terminals are left open. The default value is 36. Short-circuit current Isc A Current obtained when array terminals are short circuited. The default value is 7. Voltage at maximum power point Vmp V Voltage at maximum power point. The default value is 29 V. Current at maximum power point Imp A Current at maximum power point. The default value is 7. C Defines variation of Voc as a function of temperature. The default value is -0. C Defines variation of Isc as a function of temperature. The default value is 0. Display I-V and P-V characteristics of... To display the I-V and P-V characteristics of one module or of the whole array, for variable irradiance or for variable temperatures, select an option: one module 25 deg. Enter a vector of temperatures in degrees C. Light-generated current IL A Current for one module under STC, flowing out of the controllable current source that models the light-generated current. An optimization function determines this parameter to fit the module data. The default value is 7. Diode saturation current I0 A Saturation current of the diode modeling the PV array for one module under STC. An optimization function determines this parameter to fit the module data. The default value is 2. Diode ideality factor Ideality factor of the diode modeling the PV array. An optimization function determines this parameter to fit the module data. The default value is 0. Shunt resistance Rsh ohms Shunt resistance of the model for one module under STC. An optimization function determines this parameter to fit the module data. The default value is 313. Series resistance Rs ohms Series resistance of the model for one module under STC. An optimization function determines this parameter to fit the module data. The default value is 0. Break algebraic loop in internal model By default this parameter is not selected. You then get an algebraic loop in the internal diode model, both in a continuous model or in a discrete model. If you use the block in a discrete system using large sample times, this algebraic loop is required to get an iterative, accurate solution for the highly nonlinear diode characteristics. For example, the PV array connected to an average model of power electronic converter runs with a sample time as large as 50e-6 sec, and Simulink ® can solve the algebraic loop. When the PV array block is connected to a detailed power electronic converter where real switches are simulated, you need to specify a small sample time to get accurate resolution in PWM pulse generation for example, 1e-6 sec with a 5 kHz PWM inverter. In this case, to speed up simulation, select this parameter to break the algebraic loop. When the model is discrete, break the algebraic loop by using a one-simulation-step time delay. This approach can cause numerical oscillations if the sample time is too large. When the model is continuous, break the algebraic loop by using a first-order filter. The Time constant s parameter then becomes visible. When the model uses an algebraic loop i. The Measurement Filter Time constant s parameter then becomes visible. Time constant s The filter time constant is visible in a continuous model only when Break algebraic loop in internal model is selected. The default value is 1e-6 sec. Measurement Filter Time constant s The measurement filter time constant is visible in both discrete and continuous model when Break algebraic loop in internal model is not selected. The default value is 5e-5 sec.
Last updated
