PV array reconfiguration during partial shading
The proposed approach is inspired by the Electrical Array Reconfiguration (EAR) applied to autonomous PV systems such as cars powered by solar energy and electric engines coupled to water pumps. The proposed ideas are based on the strategy that the maximum power point voltage has a small
Project Title
PV array reconfiguration during partial shading
Project Area of Specialization
Project Summary
The proposed approach is inspired by the Electrical Array Reconfiguration (EAR) applied to autonomous PV systems such as cars powered by solar energy and electric engines coupled to water pumps.
The proposed ideas are based on the strategy that the maximum power point voltage has a small
variation within a wide range of the irradiance on a PV module, and on the other hand, that the MPP current of a PV module can be considered nearly proportional to the irradiance value.
Thus to detect partial shading we will be using current as a tool by measuring the current through each panel using a current sensor ACS712 and then the data will be fed to a computer in the visual studio software which will give us the solar irradiance for each of the panel.
Then ‘sum subset problem’ algorithm will be used for the array reconfiguration according to which switching will be done.
The algorithm used here is “Sum Subset problem" which is based on dynamic programming.
Project Objectives
- Improve the energy extraction from PV array.
- Minimize the losses of partial shading.
- To build low cost EAR.
- To give effective solution by not using expensive MPPT inverter.
Project Implementation Method
PV array interfacing + Selection of sensors + Algorithm coding + Interfacing the sensors + Interface circuit of microcontroller.
Benefits of the Project
Our project will be able to extract the maximum power during partial shading. Current sensors are connected with each panel the measured current is then fed to the pc and the solar irradiance is calculated and displayed. Then it is determined which panel is shaded after which the algorithm is applied and the switching is done and the array is reconfigured
Technical Details of Final Deliverable
Our project will be able to extract the maximum power during partial shading. Current sensors are connected with each panel the measured current is then fed to the pc and the solar irradiance is calculated and displayed. Then it is determined which panel is shaded after which the algorithm is applied and the switching is done and the array is reconfigured
Final Deliverable of the Project
Core Industry
Other Industries
Core Technology
Other Technologies
Sustainable Development Goals
Required Resources
| Item Name | Type | No. of Units | Per Unit Cost (in Rs) | Total (in Rs) |
|---|---|---|---|---|
| PV panels | Equipment | 9 | 3000 | 27000 |
| relays | Equipment | 9 | 100 | 900 |
| I-V Tracer | Equipment | 1 | 5000 | 5000 |
| power supply | Equipment | 1 | 1500 | 1500 |
| current sensors | Equipment | 9 | 400 | 3600 |
| Total in (Rs) | 38000 |
If you need this project, please contact me on contact@adikhanofficial.com
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