Problem Statement
- The conventional PV model can only have either current or voltage as input.
- The PV emulator has instability problem when using the conventional PV model.
- The PV model with resistance input is suitable for PV emulator since it can eliminate the instability problem. However, this model is mathematically not exist.
- The PV model with resistance input can be created using the conventional PV model using the Look-Up Table (LUT) method, but it require a lot of data. It is also not flexible since PV model is 4 dimensional (irradiance, temperature, resistance, current) which require more data to ensure model accuracy.
Solution
- Proposed a mathematical Current-Resistance (I-R) PV model.
- It does not require a lot of memory and it is highly stable.
- Since the proposed PV model cannot be solved using the standard Newton-Raphson Method, the Binary Search Method is used.
