Design of a MPPT Controller Along with a Reconfiguration Technique for a PV System under Partially Shaded Condition

A solar power plant is an integration of different electrical and electronic components comprising of power conditioners, measurement devices, power converters, transformers etc. It also includes a storage system of lead-acid batteries, ultra-capacitors etc. Sometimes these systems also have the facility of grid integration. Thus for the proper functioning of the entire power plant requires that all the equipments operate well within their operating limits like voltage, current, power, frequency. To ensure proper operation a well defined maintenance scheduling is required which includes monitoring of the safety limits and taking necessary actions. This paper focuses on the operation and maintenance of a grid connected solar power plant of 100 KW, 240V. A detailed analysis of the installed solar power plant is done on the basis of power generated and connected load in different operating months. Based on these analyses, basic load management method has been proposed for an economical operation. Battery storage system used along with this solar power plant is also studied and different maintenance requirements for its safe operation under different load conditions have also been discussed.