Exploiting Reliable Power from Independent PV-Battery Systems by Combining Improved INC with Power Management Circuitry

In distributed power generation systems, the two fundamental issues are generation capacity and sustainability. Recently, these challenges have been greatly impacted by lighting loads. DC-fed LED lighting offers a superior approach. The traditional grid requires a rectifier, which comes at a high cost and lower efficiency to obtain DC outputs. To address these issues, this research work presents a dependable Independent PV-Battery (IPVB) systems fed LED load that uses a Power Management Algorithm (PMA) with Maximum Power Point Tracking (MPPT). Employing the different step size- Improved INC method significantly reduces the undesired fluctuations at MPP caused by the traditional Incremental Conductance (INC) technique. With a controlled DC voltage bus of 36 V, the non - isolated dc bilateral converter in the PMA serves as a charge controller that chooses the batteries charging and discharging phase based on the battery's level of capacity, solar irradiance power, and converters output power. Through simulations, the efficiency of three MPPT and PMA has indeed been examined.