Principle of current monitoring of photovoltaic panels

What is photovoltaic system monitoring?

This chapter provides the rationale behind photovoltaic (PV) system monitoring, its purpose, the necessity of proper measuring, and the frequency required to produce meaningful results. The need for system monitoring comprises three groups: user feedback, performance verification, and system evaluation.

What is a PV Monitoring System?

The monitoring system collects the required data in a PV system and transmits it to the control center that lets users evaluate and control the system to decrease maintenance costs, monitor the performance indicators of power generation, and keep track of fault events. In recent years, different PV monitoring systems have been presented.

Can a monitoring system predict the energy generation of a PV system?

Spataru et al. presented a monitoring system that accurately predicts the energy generation of the PV system. This approach monitors PV array conditions applying the Sandia Implemented Model. Normal operation is introduced using the predicted output energy of the PV array by the implemented model.

Can remote monitoring systems be implemented in PV systems?

If the sensors and wireless communication technologies are selected and calibrated appropriately, remote monitoring systems can be implemented in PV systems from large-scale plants to small-scale stand-alone systems.

What parameters are measured in a PV Monitoring System?

The parameters measured in each PV monitoring system may vary. Although current, voltage, temperature, and radiation are the most frequently measured data, some systems measure different parameters. Three types of parameters are used to monitor PV systems: electrical data, environmental data, and real-time device operation data.

Why is monitoring and control important for PV systems?

The monitoring and control are essential to supervise the performance of PV systems in order to prevent electrical failures and malfunctions [ 4 ].