Qualification: 
M.Tech, B-Tech
bharathkr@am.amrita.edu

Bharath K. R. currently serves as Assistant Professor at the Department of Electrical and Electronics Engineering at Amrita School of Engineering, Amritapuri. Bharath K. R. has completed  B. Tech. in  EEE  from Amrita School of Engineering, Amritapuri in the year  2012 and  M. Tech. in Embedded Systems Design from National Institute of Electronics and Information Technology, Calicut in the year 2014.

Publications

Publication Type: Conference Paper

Year of Publication Title

2018

H. Choutapalli, Bharath K. R., and Dr. P. Kanakasabapathy, “A Review on Advanced MPPT methods for SPV system under Partial Shaded Conditions”, in 2018 International Conference on Control, Power, Communication and Computing Technologies (ICCPCCT), 2018.

2018

Bharath K. R., Kodoth, R., and Dr. P. Kanakasabapathy, “Application of Supercapacitor on a Droop-Controlled DC Microgrid for Surge Power Requirement”, in 2018 International Conference on Control, Power, Communication and Computing Technologies (ICCPCCT), 2018.

2017

Bharath K. R., Sivaraman, G., Harivishnu, B., and Haridas, M. P., “Design and implementation of electric speed booster and kinetic energy recovery system for electric vehicle”, in 2017 International Conference on Technological Advancements in Power and Energy ( TAP Energy), Kollam, India, 2017.[Abstract]


Electric vehicle is one of the major technological innovations of this century which has already shown immense potential to change the course of human transportation system. This paper focuses mainly on the design and implementation of an electric speed booster which includes an ultra-capacitor bank, a regeneration system, a solar charging system and a traction system. In this paper, an ultra-capacitor bank is charged through both regeneration as well as the solar charging system to act as a surge power source for speed boosting. Necessary converters and rectifiers have been employed for conversion of the energy for charging the capacitor bank. The ultra-capacitor bank has been connected in conjunction with a battery bank, both of which are used to support the DC bus that electrically drives the drive train. A toggle switch is employed for initiating speed boost mechanism in the vehicle. The system operates such that the ultra-capacitor-battery combination works as a range extender when speed boost is switched off and as a speed booster when it is switched on. Such a system has shown to further improve the efficiency and performance of the system. Performance analysis is carried out and results are provided in the later section of this paper.

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2017

Bharath K. R., Student, A. D., and Dr. P. Kanakasabapathy, “A simulation study on modified droop control for improved voltage regulation in DC microgrid”, in 2017 International Conference on Intelligent Computing, Instrumentation and Control Technologies (ICICICT), Kannur, India, 2017.[Abstract]


In a standalone DC microgrid connected with multiple renewable resources and storage elements, parallel dc-dc converters are more commonly used as interfacing unit between renewable energy sources and load. Current is shared between various power converters which are connected in parallel fashion to maintain a stable DC voltage in the grid. In order to ensure better load sharing in DC microgrid applications, droop control technique is more commonly used. But this control technique cannot ensure a decent level of voltage regulation. In order to address this problem, an improvisation is made in the conventional droop control strategy to obtain a better voltage regulation. This in turn improves the reliability of the system under various conditions. Proposed control technique is simulated and results are provided in this paper.

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2016

Bharath K. R. and Dr. P. Kanakasabapathy, “Implementation of enhanced perturb and observe maximum power point tracking algorithm to overcome partial shading losses”, in 2016 International Conference on Energy Efficient Technologies for Sustainability, ICEETS 2016, 2016, pp. 62-67.[Abstract]


Maximum power point tracking is a method to trap maximum available power from a solar panel. Many algorithms have been developed based on the characteristics of solar panel in order to utilize maximum available power. But these algorithms do not consider local maxima and minima in the solar panel characteristics caused due to shading. In this paper an enhanced version of Perturb and Observe maximum power point tracking algorithm is explained which also considers local maxima and minima caused by shading and makes the solar panel to work at its peak maxima. This helps in improving the overall efficiency of the system. Algorithm is implemented on 50W solar panel using ATMega 8 microcontroller and a boost converter. More »»

2011

Rajesh Kannan Megalingam, Krishnan, A., Bharath K. R., and Nair, A. K., “Advanced digital smart meter for dynamic billing, tamper detection and consumer awareness”, in ICECT 2011 - 2011 3rd International Conference on Electronics Computer Technology, Kanyakumari, 2011, vol. 4, pp. 389-393.[Abstract]


Developing countries are struggling to meet the electric power demands of fast expanding economies. Added to this is the poor infrastructure which has not kept pace with the increasing demand. Quality of supply too is gaining in importance. Poor metering and billing has rendered huge losses for utilities. Tampering and fraud is also rampant. Introducing Advanced Metering Infrastructure will go a long way in mitigating many of these problems. This paper details the development of Advanced Metering Infrastructure incorporating features to monitor supply parameters and perform functions like real time billing and alerts against overvoltage and overcurrent. The proposed meter is to utilize the capabilities of ADE7758 IC as well as microcontrollers such as ATMega16. © 2011 IEEE. More »»

Publication Type: Journal Article

Year of Publication Title

2018

Bharath K. R., H, C., and Dr. P. Kanakasabapathy, “Control of bidirectional DC-DC converter in renewable based DC microgrid with improved voltage stability”, International Journal of Renewable Energy Research-IJRER, vol. 8, 2018.[Abstract]


Providing a stable voltage at the nominal level according to universally accepted standards is a primary concern of any public electricity network. In a renewable energy fed power electronic based DC microgrid system, renewable sources can have fluctuating power characteristics due to various environmental factors. In such an environment, chances of voltage instability are highly probable due to varying power nature of renewable sources and loads connected. In this paper, a bidirectional converter connected with a battery storage is controlled based on the voltage of the microgrid in order to tackle the aforementioned problem. A selector based control algorithm in conjunction with a proportional-integral controller is used to trigger the bidirectional converter. Proposed control technique is simulated in a 60V DC microgrid and results are provided.

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