Sreelekshmi R. S. currently serves as Assistant Professor at the Department of Electrical and Electronics Engineering at Amrita School of Engineering, Amritapuri. She has completed M. Tech. in Power System.


Publication Type: Conference Paper

Year of Publication Title


P. T. Pillai, Sreelekshmi R.S., and Dr. Manjula G. Nair, “A PV panel model considering temperature and irradiance effect on panel resistances”, in 2017 International Conference on Technological Advancements in Power and Energy ( TAP Energy), 2017.[Abstract]

The global energy apetite is exponentially increasing at an alarming pace. The total demand cannot be fulfilled by the existing generating systems and hence dependence on renewable energy sources are predominant. Solar energy is a novel trend and could satisfy global apetite. Due to fluctuating operating condition MPP vary and MPPT algorithm are required. In this paper a novel MPPT methodology is introduced and simulated using MATLAB/SIMULINK.

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Sreelekshmi R.S., Ashok, A., and Dr. Manjula G. Nair, “A Fuzzy Logic Controller for Energy Management in a PV — Battery based Microgrid System”, in 2017 International Conference on Technological Advancements in Power and Energy ( TAP Energy), 2017.[Abstract]

For integrating renewable energy resources such as PV to a microgrid there requires an efficient energy management strategy due to the intermittent nature of renewable energy resources. An energy storage system such as battery storage system is always used along with PV as an auxiliary energy source. In this paper we propose a fuzzy based controller for the energy management in a PV-Battery based microgrid. Depending on the availability of PV power, Battery State of Charge(SoC), Load the fuzzy logic controller will take the decision and corresponding switching signals will be produced.

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Sreelekshmi R.S., Prasad, A., and Dr. Manjula G. Nair, “Control and operation of microgrid connected Hybrid Energy Storage System”, in 2016 International Conference on Energy Efficient Technologies for Sustainability, ICEETS 2016, 2016, pp. 356-360.[Abstract]

The high penetration of the Renewable Energy Sources (RES) can create stability, reliability and power quality problems in the main electrical grid due to their stochastic nature. Microgrids can be analysed as a solution capable of guaranteeing a controlled injection of energy generated by the renewable energy technologies. The use of storage system in a MG plays an essential role in order to ensure energy balance and in maintaining high power quality. Due to the technical limitations of the currently available storage systems, it is necessary to use more than one storage technology to satisfy the requirement of microgrid applications. In order to satisfy the above constraints, this paper proposes the association of a supercapacitor (SC) and a lithium ion battery in a Hybrid Energy Storage System (HESS). A novel control strategy is adopted for the control of the HESS. Hierarchical control is used for the control of the inverter in islanding and grid connected mode. Self synchronization control ensures smooth transition between islanded and grid connected modes. Simulation of the system is carried out in MATLAB/Simulink. More »»
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