SIMULATION OF PHOTO VOLTAIC CELL USING NEWTON-RAPHSON METHOD
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This document describes a numerical simulation of a photovoltaic (PV) cell using the Newton-Raphson method. It discusses using a two-diode model to describe the electrical behavior of a solar cell and adapting this model to include breakdown behavior at high negative voltages. It then presents the equivalent circuit of a PV cell and describes simulating the cell's behavior by setting a function f(V,I) equal to zero and iteratively solving for the current I using the Newton-Raphson method until the change in successive iteration values is less than a small value E.
SIMULATION OF PHOTO VOLTAIC CELL USING NEWTON-RAPHSON METHOD
- 1. PRASHANT SRIVASTAV B.TECH ELECTRICAL & ELECTRONICS ENGINEERING ( THIRD SEMESTER ) ROORKEE COLLEGE OF ENGINEERING
- 2. NUMERICAL SIMULATION OF PV CELL USING NEWTON – RAPHSON METHOD INTRODUCTION – ➢ For the description of the electrical behavior of a solar cell during generating operation the two diodes model is commonly used. ➢ For cells which are driven in the negative voltage range another model is necessary, which describes the breakdown region at high negative voltages. ➢ This model can be adapted to the two diodes model and offers optimal conditions for the description of the solar cell characteristics.
- 3. EQUIVALENT CIRCUIT OF PV CELL
- 4. SIMULATION OF PV CELL f ( V,I ) = 0 , where, V = given voltage I = current & I expected to be a single root Starting With The Following Iteration, I0 Is Initial Value : I1 = I0 – f ( V,I0) f’(V, I0) ➢ The iteration stops if a suitable condition is met. In the case above the absolute difference of two succeeding values of the iteration is used: ➢ | Ii+1 – Ii| < E
- 5. DERIVATIVE OF PV CELL EQUATION
- 6. V-I CHARACTERISTICS OF AN UNILLUMINATED PV CELL
- 7. Thanks! God & All of you.