Solar panel I-V characteristics in Power Electronics - Mini Project: Build & Apply

Solar Panel I-V Characteristics

📖 Scenario: You are working with a solar panel system and want to understand how the current and voltage relate under different sunlight conditions.

🎯 Goal: Build a simple data model representing the current-voltage (I-V) characteristics of a solar panel and analyze it to find the maximum power point.

📋 What You'll Learn

Create a dictionary with voltage (V) as keys and current (I) as values representing the solar panel I-V data points.

Add a variable to store the maximum voltage value from the data.

Calculate the power at each voltage point and store it in a new dictionary.

Find the voltage and current at which the power is maximum.

💡 Why This Matters

🌍 Real World

Understanding solar panel I-V characteristics helps in designing and optimizing solar energy systems for homes and industries.

💼 Career

Knowledge of solar panel performance data is essential for renewable energy engineers, technicians, and system designers.

1

Create the I-V data dictionary

Create a dictionary called iv_data with these exact voltage-current pairs: 0: 5.0, 5: 4.8, 10: 4.5, 15: 4.0, 20: 3.2, 25: 2.0, 30: 0.5.

Power Electronics

# Create the iv_data dictionary with voltage-current pairs
# Your code here

Need a hint?

Use a Python dictionary with voltage as keys and current as values.

2

Add maximum voltage variable

Create a variable called max_voltage and set it to the maximum key value in the iv_data dictionary.

Power Electronics

iv_data = {0: 5.0, 5: 4.8, 10: 4.5, 15: 4.0, 20: 3.2, 25: 2.0, 30: 0.5}
# Create max_voltage variable with the highest voltage key
# Your code here

Need a hint?

Use the max() function on the dictionary keys.

3

Calculate power at each voltage

Create a dictionary called power_data that stores power values calculated by multiplying voltage and current for each voltage in iv_data using a dictionary comprehension.

Power Electronics

iv_data = {0: 5.0, 5: 4.8, 10: 4.5, 15: 4.0, 20: 3.2, 25: 2.0, 30: 0.5}
max_voltage = max(iv_data.keys())
# Create power_data dictionary with voltage: power pairs
# Your code here

Need a hint?

Use a dictionary comprehension to multiply voltage and current for each pair.

4

Find maximum power point

Create variables max_power_voltage and max_power_current that store the voltage and current at which the power is maximum in power_data.

Power Electronics

iv_data = {0: 5.0, 5: 4.8, 10: 4.5, 15: 4.0, 20: 3.2, 25: 2.0, 30: 0.5}
max_voltage = max(iv_data.keys())
power_data = {v: v * i for v, i in iv_data.items()}
# Find voltage and current at maximum power
# Your code here

Need a hint?

Use the max() function with key=power_data.get to find the voltage with maximum power.