PV Module Modeling - Battery Modeling - Engineering Assignment Help

Assignment Task

Your task is to complete the system-level power management design for a remote weather monitoring station. The cabling resistance is modeled by Rc = 0.75 . The daily irradiance and ambient temperature profile. You may assume that all PV modules are identical and experience the same irradiance at all times. The load, which consists of a combination of sensors, processing units and communication devices, is activated periodically and has the 24-hour power profile shown in Fig. 3. There are two dc-dc converters in the system. Dc-dc converter #1 performs MPPT and charge-control on the battery, while dc-dc converter #2 regulates the load voltage, Vload, to 48 VDC. The efficiency of the dc-dc converters versus the normalized output power,. The rated output power of each converter, Pmax, is based on your specific design. The datasheet for the PV module to be used in this work and the data are posted on the course website.

Part A: PV Module Modeling
Build an electrical model of the PV module in MATLAB/simulink based on the datasheet information and the model discussed in class. Generate the same I/V curves as the datasheet to verify the accuracy of your model versus irradiance and module temperature. Document your results. For proper comparison you should directly overlap your simulation results with the datasheet curves. N.B: You are not allowed to use any built-in (or online) simulink models for PV/batteries.
 

Part B: Battery Modeling
The battery cell datasheet is provided on the web-site. Create a basic electrical model of the full battery to be included in the system model. Verify that simulated discharge curves of the cell match with the datasheet.
 

Part C: System-Level Simulation
1. Create a complete model of the system in Simulink such that you can perform a transient simulation based on the provided data. The dc-dc converter #1 should automatically turn off to avoid over- charging the battery. The system must take the irradiance and ambient temperature data as inputs while computing all voltages and currents in Fig. 1. You should use a first-order thermal model of the PV module to obtain the cell temperature. The modeling and design procedure will be discussed in class in detail.

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