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Department of Electrical and Electronic Engineering
University of Peradeniya
Department of Electrical and Electronic Engineering
University of Peradeniya

Industry Collaborations

  •   Project 1

Manufacturing of Smart Meters locally and introduce to Energy Sector in Sri Lanka.

  •   Description :

    Smart meters are the heart of the distribution system in smart grid. Smart meters are used to collect consumption data from end users as well as send feedback signals and control commands to the end user. A Research and Development(R&D) unit of Ceylon Electricity Board (CEB) has manufactured a smart meter to collect consumption data. Under this grant a team from Department of Electrical and Electronic Engineering (DEEE), University of Peradeniya (UoP) came to an agreement with CEB to analyze and improve the developed smart meter and associated Advanced Metering Infrastructure (AMI). The tasks were divided into three categories namely; Head End System Development coordinated by Dr. M.A.U.S. Navaratne;Wireless network and Communication coordinated by Dr. M.B. Dissanayake; AMI security coordinated by Dr. S.N. Karunarathna

  •   Funding : Ministry of Power and Renewable Energy

  •   Principal Investigator : Dr. M.A.U.S. Navaratne

  •   Other Investigators : Prof. K.M. Liyanage, Dr. M.B. Dissanayake, Dr. S.N. Karunarathna

  •   Collaborators : R&D unit, Ceylon Electricity Board (CEB)

  •   Duration : 1 year

  •   Research Assistants : Mr. Akila Herath, Mr. Sehan Samarakoon, Mr. Yasitha Karunasinghe.

  •   Project 2

Solution to Solar PV Power Intermittency.

  •   Description :

    Solar PV penetrated as a green solution to the ever-increasing power demand in many parts of the world. However, one must be mindful about its inherent limitations. Firstly, no power is generated in the absence of solar power. Hence the generation comes to standstill when dark arrives, and it has been established that the effective generation is limited to 3 to 4 hours a day. Secondly, the latter generation is ensured, provided no disturbances occur during that limited time. The disturbances come in the form of shading by clouds which reduces the incident light and hence the power generated. The Figure 1 shows a typical shading scenario of a Solar PV plant of 100 kW installed capacity. The generation profile fits into a bell shape. However, there are drastic drops which correspond to shading by clouds.

    The cloud condition depends on many factors such as the season of the year, local climatic conditions, wind condition, etc. From the electric grid point of view, it loses generation or experiences a reduction in generation whenever shading happens and is seen as a generation intermittency. This may not be a serious problem when the solar PV contribution to the network is in the order of 0.1% of the generation share and the rest of the network has sufficient spinning reserve. However, practically this is not necessarily the case all the time. Globally, solar PV is promoted as a greener means of mitigating the growing power demand and hence the global trend is that the generation share of the PV will be increased to reasonably high values as high as 20%. In this project, a Battery Supercapacitor Hybrid Energy Storage System (HESS) solution developed by the investigators at DEEE will be used to mitigate the intermittency problem in the solar PV systems irrespective of the installation capacity share.The HESS has the advantage that it has both high energy density and high-power density due to the co-existence of the battery and the supercapacitor respectively. The supercapacitor, though comes at a relatively high cost, solves the lifetime shortening issues of the battery due to discharges with high gradients.

  •   Funding : Ceylex Engineering Private Limited

  •   Principal Investigator : Prof. Lilantha Samaranayake

  •   Duration : 1 year

  •   Research Assistant : Eng. P.A.N.B. Pathirana

  •   Project 3

Battery swapping station for e-Wheelers.

  •   Description :

    The target of this project is to design and implement a complete eco system for the electrical vehicles, where the electrical vehicle owners can swap fully charged batteries by visiting a battery swapping station, once their EV battery state of charge is depleted. This project involves prototype mechanical system design, hardware implementation, implementation of the IoT platform to work with mobile devices to collect battery information, design of an optimization algorithm to maximize the profits earned in trading energy to the grid at the battery swapping station.

  •   Funding : LTL Holdings Private Limited

  •   Principal Investigator : Prof. Lilantha Samaranayake

  •   Other Investigators : Dr. Prabath Binduhewa, Prof. Janaka Ekanayake

  •   Duration : 1 year

  •   Research Assistant : Sachini Ekanayake, Oshada Sandaruwan.

  •   Status : Ongoing

  •   Project 4


  •   Description :

    As of today, Electric Vehicles (EVs) have become an attractive solution for the problem of air pollution in cities and the ever depleting petroleum sources. Almost all EVs have a battery, a power converter and an electric machine. When considering a conventional drive cycle of an electric vehicle, time periods of acceleration, braking and constant speeds can be observed. The highest power demand from the machine will occur during the acceleration and the power demand from the battery will be comparatively lower when the EV is running at a constant speed. In order to provide the high power required for acceleration, batteries with high capacity must be used, which also increases the weight of the vehicle while occupying a larger space.A solution has been designed, simulated and experimentally verified by using a supercapacitor bank along with the battery bank to provide power to the EV. The supercapacitor has been used to provide pulse power demand during acceleration and sink power spikes caused during regenerative braking operation, as it is a high power density and low energy density device. This allows the battery to cater the average power demand without current spikes. Thus a battery with smaller capacity can be used and also the life of the battery can be extended.

  •   Funding : LTL Holdings Private Limited.

  •   Principle Investigator : Prof. Lilantha Samaranayake

  •   Other Investigators : Prof. Janaka Ekanayake

  •   Duration : 1 year

  •   Research Assistant : Eshan Karunaratne, Anjana Wijesekara, Sachini Ekanayake

  •   Publications : Simulation of a Three-Port Bi-Directional Converter for an Electric Vehicle Application," E. Karunarathne, L. Samaranayake, P. Binduhewa and J. Ekanayake, 2019 14th Conference on Industrial and Information Systems (ICIIS), Kandy, Sri Lanka, 2019, pp. 220-225, doi: 10.1109/ICIIS47346.2019.9063324.

  •   Status : Completed

  •   Project 5

Design of a Robotic Solution for Lead Tinning Process in Electronic Circuit Manufacturing.

  •   Description :

    Lead tinning is one of the crucial parts of manufacturing electronic components such as inductors and instrumentation transformers. Currently it is done manually exposing the worker to lead fumes which is carcinogenic. In this project, it is intended to develop an industrial robot manipulator to replace the manual labour. This project is carried out on the MATLAB / SIMULINK realization of the PUMA 560 robot manipulator for position control. The focus of the work is on 1. robot manipulator analysis, 2. design of individual joint controllers, and 3. analyze the controller performance in the SIMULINK environment.

    The controller can handle each joint individually without affecting the rest of the joints as expected. The developed model is able to reach any point within the work cell in 3D space when the reference coordinates of the end arm tool and its yaw, pitch and roll angles of it are provided.

  •   Funding : GPV Lanka Private Limited

  •   Principle Investigator : Dr. Lilantha Samaranayake

  •   Duration : 6 months

  •   Research Assistant : Shanaka Gunasekara.

  •   Status : Completed

  •   Project 6

Design of an Automated Pin Insertion Machine for Electronic Component Manufacturing.

  •   Description :

    Metal pins are used to connect the electronic components such as inductor coils and windings of the instrument transformers to the rest of the circuit. At the stage of manufacturing such electronic components, it is mandatory to insert the metal connector pins to the plastic holder of the inductor coil or the instrumentation transformer in the correct orientation and to the correct depth. At present it is done manually with low productivity. With the intention of increasing the productivity and also the quality of the work, an automated machine is being designed, which will be manufactured locally.

  •   Funding : GPV Lanka Private Limited

  •   Principal Investigator : Prof. Lilantha Samaranayake

  •   Other Investigators : Dr. Prabath Binduhewa, Prof. Janaka Ekanayake

  •   Duration : 4 Months

  •   Research Assistants : Manuka Suriyage

  •   Status : On going

  •   Project 7

Smart Distribution Transformer for Voltage Regulation and Frequency Support.

  •   Description : A smart transformer capable of active voltage regulation along with CVR based frequency control is being developed. Further, a LV distribution management will be developed to aid the management decisions.

  •   Funding : AHEAD Project, RIC grant

  •   Principal Investigator : Prof. J.B. Ekanayake

  •   Other Investigators : Dr. P.J. Binduhewa, Dr. S.G. Abeyratne, Dr.Lilantha Samaranayake.

  •   Collaborators : LTL Transformers (Pvt) Limited

  •   Duration : 2 years

  •   Research Assistants : Indoopa Manamperi, Anjana Wijesekera, Lasanthika Dissawa, Upul Bokaregoda, Udaya Senanayake.

  •   Project 8

Study on Grid Operation with Distributed Generation.

  •   Description : The Scope of this research is to propose grid/distribution system operation strategies to ensure acceptable reliability by reviewing the existing grid and distribution codes. Furthermore, the objectives of the research can be stated as follows :
  • Review the existing grid and distribution codes and recommend changes to suit a future with 40% or more intermittent sources in the grid.

  • Review viability of the possible grid investments that may be required to meet the ambitious Renewable Energy (80%) targets.

  • Propose grid /distribution system operation strategies to ensure acceptable reliability.

  •   Funding : Public Utilities Commission of Sri Lanka (PUCSL)

  •   Investigators : Dr. P.J Binduhewa

  •   Duration : Nov 2020 to August 2021

  •   Research Assistant : Nadeeshan Gunawardhane.

  •   Project 9

Grid Integration Limit for Intermittent Sources.

  •   Description : This research focuses on integrating intermittent sources into the Sri Lankan electrical grid. More precisely the integration of large-scale wind and solar energy integrated into the transmission network or primary distribution network of the Sri Lankan grid. The research focuses on finding :
  • Grid absorption limits for intermittent sources with and without curtailment during 2020-2040 in Sri Lanka.

  • Interventions/ improvements required in the grid (grid code, etc) to increase the absorption limit, that are economically viable considering decreasing cost trend of intermittent sources.

  •   Funding : Public Utilities Commission of Sri Lanka (PUCSL)

  •   Principal Investigator : Dr. M.A.U.S. Navarathne

  •   Other Investigators : Mr. Akila Herath

  •   Collaborators : Mr. Kanchana Siriwardana, Mr. Krishananth Shivanesarajah.

  •   Duration : Nov 2020 to Oct 2021

  •   Research Assistant : Anushika Lakmini.

  •   Project 10

Fast charger for Electric Vehicles.

  •   Research Area : Power Electronics

  •   Funding : CodeGen International (Pvt) Ltd

  •   Principal Investigator : Prof.S.G.Abeyratne

  •   Duration : 2 years

  •   Research Assistant : Lahiru Sandaruwan.

  •   Publications : B. L. L. Sandaruwan, S. G. Abeyratne and R. T. T. De Silva, "Voltage-Mode-Current-Control Concept for Current-Source- Inverters in Grid Integration," PCIM Europe 2019; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, Nuremberg, Germany, 2019, pp. 1-6.
  •   Status : On going



Where we are

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