Development Of Required Power Point Tracking Algorithm For Standalone Solar Photovoltaic Inverter
Parthasarathy Eswaran1,Vaidyanathan P. N2,  Akshay Vimal J3, R.Manikandan4, J.Prassanna5,  Ambeshwar Kumar6, Chris Sam Daniel W7

1Parthasarathy Eswaran*, SRM institute of engineering and technology, Chennai, (Tamil Nadu), India.
2Vaidyanathan P. N, SRM institute of engineering and technology, Chennai, (Tamil Nadu), India.
3Akshay Vimal J, SRM institute of engineering and technology, Chennai, (Tamil Nadu), India.
4R. Manikandan, SASTRA Deemed University, Thanjavur, (Tamil Nadu), India.
5J.Prassanna, VIT University, Chennai Campus, Tamil Nadu, (Tamil Nadu), India.
6Ambeshwar Kumar, SASTRA Deemed University, Thanjavur, (Tamil Nadu), India.
7Chris Sam Daniel W, SRM institute of engineering and technology, Chennai, (Tamil Nadu), India.

Manuscript received on 23 March 2019 | Revised Manuscript received on 30 March 2019 | Manuscript published on 30 March 2019 | PP: 1578-1582 | Volume-7 Issue-6, March 2019 | Retrieval Number: F2370037619/19©BEIESP
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Abstract: This work aims to design and develop a single-phase stand-alone solar inverter embedded with a novel Required Power Point Tracking algorithm (RPPT), whereas other work reports solar inverter using Maximum power point tracking (MPPT) algorithm. RPPT algorithm can be applied to grid tie / off grid inverter and also utilize the energy from the PV (Photo Voltaic) panel even in the presence and absence of the grid power. How the work is design using a single phase prototype model was developed to demonstrate the functionality of the proposed RPPT algorithm. Why we need to demonstrate this model because it uses two microcontrollers in which one will generate two-phase PWM switching signal and the other microcontroller for executing the RPPT and load shedding algorithm. This prototype is also uses the sub modules such as HBridge driver, single phase inverter step-up transformer and load driver relay module. The RPPT algorithm will continuously monitor the instantaneous power produced by PV module, and optimal power will be selected to deliver it to the load using load shedding algorithm. In the proposed design of stand-alone solar Pv inverter is shown in four level load, shedding algorithm was used to distribute the power to the load. The prototype model was tested with maximum load of 50W. The simulation and experimentation work was carried out and yields the desired performance. We observed that the RPPT algorithm works satisfactorily and the load shedding algorithm was optimally coordinating with the PRRT algorithm. The performance analysis of the proposed system provides better results as compared to the existing system.
Keywords: MPPT algorithm, RPPT algorithm, Standalone PV inverter, Off grid inverter, Load shedding algorithm.

Scope of the Article: Mobile App Design and Development