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

Ms. Jayasree P. R. currently serves Asst Professor (Senior Grade) at the Department of Electrical and Electronics Engineering at Amrita School of Engineering, Amritapuri. Ms. Jayasree P. R. has completed  B.Tech. in EEE from Kerala University in the year 2006 and  M. Tech. in Guidance and Navigational Control from College of Engineering, Trivandrum, in the year 2011.​ 

She is is a life time member of ISTE.

ACHIEVEMENTS

  • Certificate of Excellence in the ISTE WORKSHOP on Solar Photo Voltaics, conducted by IIT, Bombay from 12th-22nd December  2011.

Publications

Publication Type: Conference Proceedings

Year of Publication Title

2018

K. R. Jayasree, A. Vivek, and Jayasree P. R., “Implementation of SRRT in Four Wheeled Mobile Robot”, International Conference on Soft Computing Systems ICSCS 2018: Soft Computing Systems. pp. 396-408, 2018.[Abstract]


A mobile robot shall efficiently plan a path from its starting point or current location to a desired target location. This is rather easy in a static environment. However, the operational environment of the robot is generally dynamic and as a result, it has many moving obstacles or a moving target. One or many, of these unpredictable moving obstacles may be encountered by the robot. The robot will have to decide how to proceed when there are obstructions in its path. How to make the mobile robot proceed in dynamic environment using SRRT technique in hardware is presented here. Using the proposed technique, the robot will modify its current plan when there is an obstruction due to an unknown obstacle and will move towards the target. The hardware model of four wheeled mobile robot and target are developed. The experimental platform is developed and control of the system is obtained using an Arduino UNO and Arduino Mega platforms.

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2014

N. M. M and Jayasree P. R., “Parallel Loaded-Resonant Converter for Battery Charging Application”, IEEE sponsored International Conference on Computation of Power, Energy, Information and Communication (ICCPEIC). 2014.

2014

B. P and Jayasree P. R., “Design and Simulation of Low Cost Boost-Half-Bridge Microinverter with Grid Connection”, IEEE sponsored International Conference on Computation of Power, Energy, Information and Communication (ICCPEIC). 2014.

Publication Type: Conference Paper

Year of Publication Title

2017

K. R. Jayasree, Jayasree P. R., and A. Vivek, “Smoothed RRT techniques for trajectory planning”, in 2017 International Conference on Technological Advancements in Power and Energy ( TAP Energy), Kollam, India, 2017.[Abstract]


Trajectory planning of a car-like mobile robot tracking a moving target by avoiding dynamic obstacles is developed using Smoothed Rapidly exploring Random Tree (RRT) and Smoothed Bidirectional RRT techniques. Case studies are done in dynamic and static environments. Kinematic model is considered for the mobile robot. The model of the system and the path planning algorithm including all case studies has been simulated for both RRT techniques. The performance comparison of both methods are done and the required results are obtained in MATLAB.

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2017

Jayasree P. R. and Alif, T., “Fuzzy Controlled Suturing Force Calculation in Minimally Invasive Robotic Surgery”, in 2017 IEEE International conference on Technological Advancements in Power and Energy(TAP Energy 2017), 2017.[Abstract]


In today’s world there is an increasing need to create artificial arms for different situations where human interaction is difficult or impossible. They may involve taking readings from an active volcano or diffusing a bomb. This study propose to build a robotic arm to control suturing speed in Minimally Invasive Robotic Surgery (MIRS) and suturing speed is controlled by information about variation of muscle thickness. The development of this arm is based on ATmega2560 platform along with a personal computer for image processing, which will all be interfaced with each other using serial communication. Finally, this prototype of the arm is expected to overcome the problem now present in MIRS.

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2017

K. R. Jayasree, Jayasree P. R., and A. Vivek, “Dynamic target tracking using a four wheeled mobile robot with optimal path planning technique”, in 2017 International Conference on Circuit ,Power and Computing Technologies (ICCPCT), Kollam, India, 2017.[Abstract]


A car-like robot that tracks a moving target by following smoothed Rapidly exploring Random Tree (RRT) path planning technique is developed. Mobile robot can track the target by avoiding obstacles on its path. Moving target can also be efficiently tracked by the robot. Case studies are done in dynamic situations. Kinematic model is considered for the mobile robot and the velocity with which the left and right wheels of the car moves are observed using simulation. The model of the system and the path planning algorithm including all case studies has been simulated and the required results are obtained.

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2017

V. V. Nair, Jayasree P. R., and G. Parvathy, “Robust control of helicopter with suspended load”, in 2017 International Conference on Circuit ,Power and Computing Technologies (ICCPCT), Kollam, India, 2017.[Abstract]


A helicopter's vertical takeoff and landing as well as its ability to hover, make it ideal for carrying a suspended load, which facilitates several applications in military and in places that are inaccessible by humans. This paper considers a helicopter having a suspended load that leads to the degradation of the helicopter control due to the increase in work load, which in worst case may lead to instability or a serious accident. This work proposes an H-infinity controller for a helicopter-slung load system in hovering condition. The controller used in this paper robustly stabilizes the helicopter even in the presence of load oscillations. This work shows sufficient control action that must be given by the helicopter in order to reduce the load swing and the results also show in the response on the effect of load swing with and without the controller.

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2017

R. Koshy and Jayasree P. R., “Comparative study of H-infinity and sliding mode control for a manipulator with oscillatory-base”, in 2017 International Conference on Circuit ,Power and Computing Technologies (ICCPCT), Kollam, India, 2017.[Abstract]


Oscillatory base manipulator can be concerned as an example of many mechanical models mounted on vessels or oceanic structures. The problem with the system is how to control the attitude of two links and position of end effector in the presence of external disturbance. To tackle these problems two robust controllers have been used i.e.; H-infinity and sliding mode controller. In order to evaluate the performance of these controllers, simulations are conducted for both attitude control and position control. In addition, the two controllers are compared to find the best out of it. The obtained results demonstrate that the sliding mode controller is more effective and is superior to the H-infinity controller.

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2017

M. L. Anand and Jayasree P. R., “Damping based anti-swing compensated fuzzy-PID controller for the overhead crane”, in 2017 International Conference on Circuit ,Power and Computing Technologies (ICCPCT), Kollam, India, 2017.[Abstract]


Overhead cranes are most commonly used in the industries for the transportation of machineries and other payloads. The main objective is to make the loaded trolley position to the target region in minimum time with reduced payload swing. Usually this task is too hard in practical aspect because overhead crane is an under actuated system. In a normal overhead crane system energy of the system is damped as time goes on increasing, such damping can be improved by converging parameters related to the swing. In this paper a new method of nonlinear intelligent controller with antiswing compensation is discussed. A fuzzy PID controller is used for the position tracking and swing control is investigated based on an improved anti-swing signal derived from a swing related storage function. Proposed control is compared with linear controller and closed loop Lyapunov controller and shows improved response.

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2017

T. Alif and Jayasree P. R., “A case study on needle selection and fuzzy-based control for suturing force calculation in Minimally Invasive Robotic Surgery”, in 2017 International Conference on Circuit ,Power and Computing Technologies (ICCPCT), 2017.[Abstract]


Based on the long-term goal, robots are playing an important role in Minimally Invasive Robotic Surgery (MIRS) where they displace the limits and increase both accuracy and precision which a human cannot achieve. In minimal invasive robotic surgery, the operation is performed by a surgical robot controlled by a human (surgeon) near to the surgical robot through a control system. In the surgical operation room, surgeon and assistant must create an environment for which the robot will get optimal freedom of motion. Inappropriate suturing speed may tear off muscles, leading to internal bleeding and organ damages, which extends the operation time. This paper introduces a method to identify the strength of muscles during suturing task itself and based on muscle strength, a fuzzy-based control system controls the torque applied by the end effector, for better suturing without any muscle damages. Analysis of diagnostic sonographic images is used for finding strength variations of muscles. Sonographic imaging probe is attached to one of the robotic arms which is inserted into the surgical area of the human body through the specified port for getting a clear vision of the entire operating region. Suturing needle selection plays an important role in MIRS. Improper selection of needle leads to multiple regrasps to complete the operation. Muscle strength identification and puncturing force calculation are done using MATLAB.

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2016

Jayasree P. R., Prasad, V., and Sruthy V., “Active Power Sharing and Reactive Power Compensation in a grid tied photovoltaic system”, in International Conference on Processing of Materials, Minerals and Energy, 2016.[Abstract]


In the present scenario of energy crisis, researches on non-conventional energy sources have grown appreciably. The electrical energy derived from the PV panel is considered as the most useful natural resources. This paper deals with the operation and control of a grid interfaced PV system. Inverter control is achieved by using adaptive hysteresis current control scheme. The proposed inverter control technique interfaces renewable energy source and the AC bus of micro grid. It provides the possibility of injecting power from the renewable sources and favours reactive power compensation. The resulting controller is simulated in MATLAB/SIMULINK and results are analyzed. More »»

2016

V. Prasad, Jayasree P. R., and V, S., “Hysteresis Current Controller for a micro-grid application”, in 2016 International Conference on Energy Efficient Technologies for Sustainability (ICEETS), 2016.[Abstract]


Researches related to non-conventional energy sources have grown significantly in the present scenario. The electrical energy from the PV panel is considered as one of the most useful natural resources. This paper deals with the operation and control of a grid connected PV system with a nonlinear load. A utility grid connection is provided in order to replenish energy levels in case of power shortage from the renewable energy sources. Hysteresis Current Controller is employed for the inverter control. The proposed inverter control technique interfaces renewable energy sources and the AC bus of micro grid. It offers the possibility to inject power from the renewable sources and also improves the power quality in the same micro grid. Simulation results show the effectiveness of the proposed inverter control technique in improving the power quality of the system. More »»

2016

Jayasree P. R., Sathyan, J., and MK, S., “Sliding Mode Control of Coupled Inductor Buck Converter”, in International Conference on Circuit, Power and Computing Technologies [ICCPCT] , 2016.[Abstract]


In this paper, a DC-DC coupled inductor buck converter is controlled by a more advantageous sliding mode control. The converter is modelled by deriving its dynamic model. The robust performance of the designed sliding mode controller for the coupled inductor buck converter is analyzed.The simulation of the coupled inductor buck converter with the designed controller is done by using MATLAB and the various results are presented. More »»

2013

S. Mohan, Jayasree P. R., Ravi, S., Prasad, R., and Vijayakumar, V., “Economically viable conversion of a pedal powered bicycle into an electric bike”, in 2013 International Conference on Electrical Machines and Systems (ICEMS), 2013.[Abstract]


There is an increased demand for electric bike in the market. This is due to the fact that the user is looking for increased comfort and also reduced price in present day scenario. So E-bikes are an extremely efficient and cost effective method to cater to all the needs of the consumer. Instead of investing money in a brand new model of bicycle, it is also effective to covert an existing model of pedal powered bicycle into an electrically powered one, which would be just as efficient as the new design, hence catering to all the needs and requirements of the consumer. The control of the E-bike is done by using chopper control and in turn by using an ATMEGA-32 microcontroller to regulate the analog input from the throttle. The motor drive used for the model would be a DC series motor. Hence the model of the electric bike would be simple in design as well as efficient. More »»

Publication Type: Journal Article

Year of Publication Title

2015

Jayasree P. R., Krishnan, A., Menon, A. S., Paul, M., and Rajin, R., “Renewable energy integration”, International Journal of Applied Engineering Research, vol. 10, pp. 332-337, 2015.[Abstract]


The integration of renewable energy sources and its effective management using two distributed generation sources (PV panel and ecofriendly generator) and one energy storage device (battery bank), capable of supplying dc loads, is proposed. It’s composed of a main DC bus. This paper elaborates the simulation and control of DC-DC converter for the solar panel and bi-directional converter for the battery and the overall integrated circuit. © Research India Publications.

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