Solar PV based Maximum Power Point Tracking Embedded DC Voltage Regulation Incorporating Battery Storage for Micro-grid Application

London Journal of Engineering Research
Volume | Issue | Compilation
Authored by Consalva Msigwa , NA
Classification: FOR code- 850505
Keywords: Maximum power point Tracking; Solar PV; DC- DC boost converter; voltage regulation; Duty cycle, Battery, Bi- directional buck- boost Converter.
Language: English

This work deals with reducing the voltage dip to improve the voltage on voltage regulator of solar photovoltaic for the microgrid. In the previous work, results show that voltage regulator managed to regulate dc voltage and maintaining the dc bus voltage at its reference value but there is voltage dip when step load changes and recovering time to response taken about 150msec. To reduce this response time battery energy storage have been incorporated with it. The battery energy storage has been used when stepping load changes or in case there is a mismatch between load demand and power generation in a microgrid. The capacity of the battery used is in less percentage of total installed capacity of the system which reduces the cost of the system. In this paper, Solar PV based Maximum Power Point Tracking (MPPT) provides voltage regulation and storage batteries have been integrated at common dc bus through bidirectional buck-boost Converter. The DC bus voltage was tested at varying solar insolation at constant  emperature. Simulation results using MATLAB/SIMULINK software shows that the response time of the DC bus voltage dip has been improved after step load changes. Incorporating the storage battery in Solar PV based maximum PowerPoint Tracking (MPPT) embedded voltage

               
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