Qualification: 
Ph.D, M.E, BE
ilangok@am.amrita.edu

Dr. Ilango K. currently serves as Assistant Professor in the Department of Electrical and Electronics Engineering at Amrita School of Engineering, Amritapuri Campus. Dr. Ilango received his Ph.D. Degree in Electrical Engineering from Amrita Vishwa Vidyapeetham, Amrita School of Engineering, Amritapuri Campus in August 2016. He received his M.E. Degree in Power Systems from P. S. G. College of Technology, Anna University and obtained his B.E. Degree in Electrical and Electronics Engineering from Madurai Kamaraj University, Tamil Nadu. Since 2008, he is associated with Amrita School of Engineering, Amrita Vishwa Vidyappetham. He has been teaching 12 years for under graduate and post graduate courses and presently he is with Amrita School of Engineering ( Amritapuri Campus), Amrita Vishwa Vidyapeetham.

Dr . Ilango is an active member of IEEE and a life member of ISTE. His research interest includes, Renewable Energy Sources & Power Quality, Power Electronics Drives and Control, Energy Conservation & Management.

 

Publications

Publication Type: Conference Paper

Year of Publication Publication Type Title

2017

Conference Paper

S. Anoop, K. Ilango, Nandagopal, J. L., and Dr. Manjula G. Nair, “Load Side Management of an Automated Residential Building Powered by Renewable Energy Sources”, in 2017 IEEE International Conference on Signal Processing, Informatics, Communication and Energy Systems (SPICES), 2017.[Abstract]


As a solution to the emerging energy crisis and the environmental problems, renewable energy has to be utilised to the most. This paper deals with a residential building which is fully powered by renewable energy sources such as hydrogen fuel cell, IC engine and solar PV. Since the utility has no role in this scenario, the management of the system has to be done precisely, otherwise, it may lead to the entire system failure. The control and monitoring of the building's load, from a load point of view, by utilising weather data, load profile, source availability, etc. have been discussed in this paper. An automated building has been considered in this paper to ensure energy conservation and reliability. The proposed algorithm has been validated using MATLAB and C Programming.

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2017

Conference Paper

D. Aiswarya, K. Ilango, and Dr. Manjula G. Nair, “A Comparative Performance Analysis of PV Grid Interface STATCOM Control Algorithms”, in 2017 Innovations in Power and Advanced Computing Technologies (i-PACT), 2017.[Abstract]


Integration of non-dispatchable Renewable Energy Resources (RES) to the utility grid is one of the challenging issue faced by the power system engineers. The quality of power supplied to the customer, power system security and protection are few of the major issues that hinders the development of more efficient control logic in integration of renewable energy sources to the grid. The integration unit of RES with additional features can mitigate the power quality issues present in the grid such as current distortion, voltage distortion, current and voltage harmonics issues etc,. In this work a STATCOM unit is chosen as the interfacing unit with two different control algorithms to verify their performance in different modes of operation such as day time mode with real power sharing from RES to grid with power quality improvement and night time mode without real power sharing from RES to grid with power quality improvement. The proposed STATCOM interface unit PV system has been modeled and results are validates using MATLAB (2015) simulation platform.

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2017

Conference Paper

S. Anoop, K. Ilango, Nandagopal, J. L., and Dr. Manjula G. Nair, “Implementation of a Load Side Management Algorithm for an Islanded Microgrid Powered by Renewable Energy Sources”, in 2017 International Conference on Technological Advancements in Power and Energy ( TAP Energy), 2017.[Abstract]


The replacement of conventional energy sources, such as fossil fuels, by renewable energy sources is today's necessity due to the environmental issues and the depletion of fossil fuels. Renewable energy sources have to be encouraged more in power generation, which is the major consumer of fossil fuel. But a trade-off between the consumption and generation has to be considered for a sustainable, efficient and greener power system. This paper proposes the load side management of a stand alone residential building. Automation has included in the system to make the overall system an economical and efficient one. A load scheduling scheme has proposed based on the load profiles of the system. The overall load side management algorithm has been validated using simulation and hardware prototype model. MATLAB and C programming has been used for simulation and Atmega 2560 for hardware implementation

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2017

Conference Paper

M. K. Kumar, Kailas, T. S., K. Ilango, and Dr. Manjula G. Nair, “Fuzzy Control based Biogas IC Engine Generator System in a Residential Building”, in 2017 International Conference on Technological Advancements in Power and Energy ( TAP Energy), 2017.[Abstract]


Biogas is a fuel which has promising characteristic of replacing conventional fossil fuels. Because of this more and more ways of effectively utilizing biogas should be implemented. This paper proposes the simulation study of a biogas fed internal combustion engine that is capable of producing electricity by running a permanent magnet synchronous generator. The engine is being controlled to a set speed by a speed controller. For providing continuous supply of biogas a storage tank at the outlet of an anaerobic digester is proposed. The proposed storage tank will have monitoring mechanism so that whenever the tank is being depleted the IC engine is shut off and when there is sufficient concentration of biogas it will provide an availability indication. Together with this a supervisory controller will monitor the system and control of the PMSG generation into a dc bus through power electronic interface.

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2017

Conference Paper

D. Madathil, Pandi, V. R., K. Ilango, and Dr. Manjula G. Nair, “Differential Evolution based Energy Management System for Zero Net Energy Building”, in 2017 International Conference on Technological Advancements in Power and Energy ( TAP Energy), 2017.[Abstract]


Zero Net Energy Building (ZNEB) is a new concept trending in the recent years which focus on energy efficient technologies for the implementation of smart buildings. The building sector contributes largely towards the growing energy needs and increased carbon footprints. Hence ZNEBs are promoted around the world as they help maintain annual zero net energy in the building which means that the overall energy generated through renewable technologies is equal to the energy consumed. In this paper, a Differential Evolution (DE) algorithm based grid connected ZNEB is designed to minimize electrical energy cost in the residential building by optimally scheduling the loads. The paper also aims to obtain a modified DE for better solutions.

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2017

Conference Paper

R. Nair, Ravishankar, A. N., K. Ilango, Sai Shibu N. B., Deepthi, B., Sanampudi, N., Balaji Hariharan, and Mohan, R., “Community Development and Energy Equality: Experiences from Micro Hydro Implementation in a Tribal Settlement in India”, in IEEE Region 10 Humanitarian Technology Conference 2016, R10-HTC 2016 - Proceedings, 2017.[Abstract]


Rural development is one of the major focus in developing countries like India, since more than 70% of citizens live in rural village. Studies show that inequality in Energy access, often hindering the collective development initiatives in those villages. This paper describes the electrification project carried out in the village of Komalikudi, Idukki District, Kerala, India where 60 % of households were not connected to state power grid. As part of this study a detailed analysis of economic levels of the community and the requirements on education, healthcare, skill development, social business etc., has been developed. Based on these requirements, a feasibility study has been performed for different renewable energy options available in the locality. The study results based on resource availability, access to the area of deployment, availability of skilled workers, Energy awareness, and commitment are used to design a 5KW hydro based generation and distribution system which energy equality and subsequently community development. A pilot deployment has been operational and reciprocating this novel innovative model to other 101 villages is ongoing with Amrita Vishwa Vidyapeetham. © 2016 IEEE.

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2016

Conference Paper

M. Soman, Manitha P. V., and K. Ilango, “Design and control of a soft switching grid connecting inverter using PI controller”, in 2016 Biennial International Conference on Power and Energy Systems: Towards Sustainable Energy (PESTSE), 2016.[Abstract]


This paper describes control and design of a new single phase dc-ac converter with soft switching operation. This converter operates with soft switching under discontinuous mode of operation. A snubber capacitor is connected to the dc terminals of a full bridge converter configuration, because of this snubber capacitor an additional switch is required to disconnect it from the dc side. A new control approach is used for the implementation of the proposed grid connecting converter. The closed loop control is simulated using PSIM smart controller. Voltage signal which are control parameter responsible for real power exchange from the renewable energy source to grid are considered in the simulation. More »»

2014

Conference Paper

P. K. Kumar and K. Ilango, “Design of series active filter for power quality improvement”, in International Conference on Electronics,Communication and Computational Engineering (ICECCE), 2014 , Hosur, 2014.[Abstract]


The voltage quality is one of the major concerns for industrial and distribution consumers. In this work, a series active filter for voltage compensation has been verified using vectorial power theory for a three-phase system with non-linear load. The simulation has been designed using MATLAB/Simulink. The control scheme provides better unbalance voltage compensation and voltage regulation for three phase system with non-linear loads which operates in different conditions. The design and simulation of series active filter performance results were presented in this paper to show effectiveness of controller.

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2014

Conference Paper

K. Rakhi, K. Ilango, Manjunath, H. V., and Dr. Manjula G. Nair, “Simulation Analysis of Half Bridge Series Parallel Resonant Converter Based Battery Charger for Photovoltaic System”, in IEEE-International Conference on Power and Energy Systems: Towards Sustainable Energy Systems (PESTSE2014), Amrita School of Engineering, Bangaluru, 2014.[Abstract]


An innovative application of half-bridge series-parallel resonant converter (HBSPRC) for photovoltaic system and secondary battery interface is explained in this paper. This converter is designed for eliminating both low and high-frequency current ripples on the battery. This will helps to maximize battery life. The switching frequency greater than that of resonance frequency is preferred for operation, because the power switches turn on at zero current and zero voltage; thus, the freewheeling diodes need not have very fast reverse-recovery characteristics. Moreover the proposed battery charger circuit has a few components. To enhance the overall efficiency of the system energy conversion loss is to be minimized and the performance of the power converters depends upon the control method adopted. In this present work, Fuzzy logic based voltage controller and PI voltage controller have been designed, modeled and simulated in MATLAB/simulink platform and results are presented. © 2014 IEEE.

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2014

Conference Paper

Ma Aiswarya, K. Ilango, Manitha P. V., and Dr. Manjula G. Nair, “Simulation Analysis of Modified DC Bus Voltage Control Algorithm for Power Quality Improvement on Distributed Generation Systems”, in IEEE-International Conference on Power and Energy Systems: Towards Sustainable Energy Systems (PESTSE2014), Amrita School of Engineering, Bangaluru, 2014.[Abstract]


This paper presents a control strategy for shunt active filter interface for distributed generation scheme without degrading the power quality in the grid. The control strategy used enhances the performance of shunt active filter by sharing active power being generated from distributed generation to grid as well as load in addition to regular functions such as current harmonic elimination, reactive power compensation, power factor correction. The modified control algorithm is designed and analyzed for non-linear load using MATLAB/Simulink. The simulation results shows good performance of controller for power quality improvement of distributed generation system interfaced through shunt active filter. © 2014 IEEE.

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2012

Conference Paper

K. Ilango, Manitha P. V., and Dr. Manjula G. Nair, “An Enhanced Controller for Shunt Active Filter Interfacing Renewable Energy Source and Grid”, in Sustainable Energy Technologies (ICSET), 2012 IEEE Third International Conference on, 2012.[Abstract]


Develoving efficient interfacing technologies to interconnect renewable energy sources with grid is a promising research area in renewable energy related applications. The interfacing unit becomes crucial as renewable energy sources when directly connected to grid, can inject harmonic components that may deteriorate the quality of power. This paper proposes a mechanism to use shunt active filter as an interface between renewable energy sources and grid with a modified and efficient control scheme. The shunt active filter with this modified controller controls the real power supplied by the grid (source) in addition to its usual functions such as reactive power compensation, power factor correction and harmonic elimination. Performance of the modified Icosφ controller is compared with that of IRPT control algorithm. Two nonlinear loads are considered here namely AC voltage controller as soft starter for induction motor and a diode bridge rectifier feeding resistive load. Simulation of proposed system proves the effectiveness of using a shunt active filter as the interfacing unit for grid integrated renewable energy systems.

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2012

Conference Paper

K. Ilango, Manitha P. V., and Dr. Manjula G. Nair, “An Enhanced Controller for Shunt Active Filter Interfacing Renewable Energy Source and Grid”, in India International Conference on Power Electronics, IICPE2012, IEEE 5th India International Conference on Power Electronics, Kathmandu, 2012, pp. 305-310.[Abstract]


Developing efficient interfacing technologies to interconnect renewable energy sources with grid is a promising research area in renewable energy related applications. The interfacing unit becomes crucial as renewable energy sources when directly connected to grid, can inject harmonic components that may deteriorate the quality of power. This paper proposes a mechanism to use shunt active filter as an interface between renewable energy sources and grid with a modified and efficient control scheme. The shunt active filter with this modified controller controls the real power supplied by the grid (source) in addition to its usual functions such as reactive power compensation, power factor correction and harmonic elimination. Performance of the modified IcosΦ controller is compared with that of IRPT control algorithm. Two nonlinear loads are considered here namely AC voltage controller as soft starter for induction motor and a diode bridge rectifier feeding resistive load. Simulation of proposed system proves the effectiveness of using a shunt active filter as the interfacing unit for grid integrated renewable energy systems. ©2012 IEEE.

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2012

Conference Paper

K. Ilango, Ram, S., and Dr. Manjula G. Nair, “A hybrid photovoltaic-battery powered DC-DC converter with high conversion ratio and reduced switch stress”, in IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES 2012), Central Power Research Institute (CPRI), Bengaluru, 2012.[Abstract]


In this paper, a new hybrid photovoltaic-battery powered DC-DC converter topology is proposed. The proposed topology is realized by cascading buck-boost converter with high step-up converter. High voltage conversion ratio has been achieved using hybrid switched capacitor technique. This proposed topology limits the voltage stress across the semiconductor devices to half of the output voltage. A 400W hybrid photovoltaic-battery powered system with 220V DC output is designed and simulation results have been verified using MATLAB/SIMULINK. More »»

2012

Conference Paper

K. Ilango, Bhargav, A., Trivikram, A., Kavya, P. S., Mounika, G., and Dr. Manjula G. Nair, “Performance Comparison of Shunt Active Filter Interfacing Algorithm for Renewable Energy Sources”, in IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES 2012), Central Power Research Institute (CPRI), Bengaluru, 2012.[Abstract]


The renewable energy source interfacing with grid is the major issue in the electric utility side. The various types of grid interfacing converter topology have been proposed by researchers to improve quality of power and efficiency of the system. This paper focuses the shunt active filter interface for the renewable energy source with an efficient modified IcosΦ algorithm for controlling the grid /source side power flow and renewable energy power with linear static loads. The proposed shunt active filter interfacing algorithm is compared with the well known algorithm of Instantaneous Reactive Power Theory (IRPT) with modifications for reactive power compensation and real power control from the renewable energy source. The performance of the both the algorithms have been simulated and tested in MATLAB/Simulink. More »»

2010

Conference Paper

R. Mayuri, Sinnou, N. R., and K. Ilango, “Eddy current loss modelling in transformer iron losses operated by PWM inverter”, in 2010 Joint International Conference on Power Electronics, Drives and Energy Systems, PEDES 2010 and 2010 Power India, New Delhi, 2010.[Abstract]


Pulse width-modulated (PWM) inverters are used more and more to operate electrical machines and to interface renewable energy systems with the utility grid. However, there are abundant high-frequency harmonics in the output voltage of a PWM inverter, which increase the iron losses and result in derating of the machine or transformer connected to them. Predicting the iron losses caused by the PWM supply is critical for the design of electrical machines and transformers operated by PWM inverters. These losses are primarily attributed to eddy-current loss caused by the PWM supply. In this paper, after analyzing the harmonic components of PWM inverter voltage, the effects of different parameters of PWM switching on the eddy-current loss has been derived. The iron loss modelled with the proposed analytical methods on a three-phase transformer and is compared with the results of finite element analysis. This paper presents detailed equations for the prediction of iron loss. These equations can be directly applied in the design and control of PWM converters and electric motors to improve energy efficiency and reduction in total harmonic distortion in electrical machines and transformers operated by PWM converters. More »»

2009

Conference Paper

M. K., K. Ilango, K.S., A. K., and K.S., J., “Novel Approach of Autonomous power generation scheme using Self-Excited Induction Generator”, in First International Conference on Energy Engineering and Eco-balance (ICEEE-2009), Mulshi Institute of Technology and Research, Mulshi, Pune, 2009.

2006

Conference Paper

B. P. and K. Ilango, “Enhancing Rural Electricity through Renewable Hybrid Energy Systems”, in National conference on Advanced Technologies in Electrical and Electronics Intelligence ATEEI-2006, Park College of Engineering and Technology, Coimbatore, 2006.

2006

Conference Paper

K. Ilango and A., R., “Energy Conservation in Energy Efficient Motor Incorporating Variable frequency Drive”, in 2 nd National conference on Cutting Edge Technologies in Power Conversion and Industrial Drives,PCID-2006 , Bannari Amman Institute of Technology ,Sathyamangalam, 2006.

2006

Conference Paper

K. Ilango, R., K., and B., A., “Renewable Energy - Electricity Policies and Market Performance”, in International conference on Global Business and Policy Modelling(GBPM-2006), Adaikala Matha Institute of Management, Vallam, Thanjavur, 2006.

Publication Type: Conference Proceedings

Year of Publication Publication Type Title

2016

Conference Proceedings

D. R, K. Ilango, S, D., and Dr. Manjula G. Nair, “Tariff Based Fuzzy Logic Controller for Active Power Sharing between Micro-grid to Grid with Improved Power Quality”, IEEE International Conference on Energy Efficient Technologies for Sustainability (ICEETS), Nagarcovil. Nagarcovil, pp. 406-409, 2016.

2016

Conference Proceedings

P. Somarajan, K. Ilango, and G, P., “An Intelligent Controller to Regulate the Speed of Hybrid Stepper Motor”, International Conference on Advancements in Automation, Robotics and Sensing (ICAARS 2016), Coimbatore. Coimbatore, pp. 1-6, 2016.

2012

Conference Proceedings

K. Ilango, .A, B., .A, T., .P.S, K., .G, M., and Dr. Manjula G. Nair, “Power Quality Improvement Using STATCOM with Renewable Energy Sources”, IEEE -5th India International Conference on Power Electronics, (IICPE 2012), IEEE PELS – IES Delhi Chapter & IEEE PES-IAS Delhi Chapter. Delhi Technological University, Delhi, 2012.

Publication Type: Journal Article

Year of Publication Publication Type Title

2014

Journal Article

C. Harikrishn Teja and K. Ilango, “Power Quality Improvement of Three Phase Four Wire System using Modified UPQC Topology”, Advanced Research in Electrical and Electronic Engineering, vol. 1, 5 vol., pp. 15-21, 2014.[Abstract]


Unified Power Quality Conditioner is a versatile custom power device which mitigates voltage and current related Power Quality issues in distribution system. Modified UPQC topology dealt in this which uses a common DC link voltage for both series and shunt active filter, thus overcoming the need for capacitor voltage balancing in conventional UPQC topology. In this topology, interfacing inductor of shunt active filter is connected in series with a capacitor. The fourth leg of the VSI is connected to negative terminal of DC link and thus eliminates the requirement of fourth leg of VSI. Switching signals are generated using hysteresis band current controller and Icos ɸ algorithm for the operation of UPQC. The performance of modified UPQC topology with hysteresis band current controller and Icosɸ algorithm has been analyzed and comparison has been done using Matlab/simulink. More »»

2014

Journal Article

D. Madathil, K. Ilango, Dr. Manjula G. Nair, and V. S. Kirthika Devi, “Voltage Flicker Mitigation in Electric Arc Furnace using D-STATCOM”, International Journal of Power Electronics and Drive Systems (IJPEDS), vol. 5, pp. 211–218, 2014.[Abstract]


The major power quality issue of voltage flicker has resulted as a serious concern for the customers and heavy power companies. Voltage flicker is an impression of unsteadiness of visual sensation induced by a light source whose luminance fluctuates with time. This phenomenon is experienced when an Electric Arc Furnace (EAF) as load is connected to the power system. Flexible AC transmission devices (FACTS) devices were gradually utilized for voltage flicker reduction. In this paper the FACTS device of Distribution Static Synchronous Compensator (D-STATCOM) is used to serve the purpose of mitigating voltage flickering caused by electric arc furnace load, which is efficiently controlled by Icosɸ control algorithm. The model of electric arc furnace is considered as a current source controlled by a non linear resistance, which had been simulated and performance was analyzed using MATLAB/SIMULINK Software.

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2012

Journal Article

K. Ilango, Manitha P. V., and Nair, M. G., “Modified ICosФ Controller for Shunt Active Filter Interfacing Renewable Energy Source and Grid”, Elsevier- AASRI Procedia, vol. 2, pp. 62-68, 2012.[Abstract]


<p>The grid integrated renewable energy sources are becoming a common area of interest for power generation in the recent times. The design and development of efficient interfacing technologies to interconnect renewable energy sources with grid is catching a lot of attention among the researchers these days. The interfacing unit becomes crucial as renewable energy sources when directly connected to grid, can inject harmonic components that may deteriorate the quality of power. This paper proposes a mechanism to use shunt active filter as an interface between renewable energy sources and grid with a modified and efficient control scheme. The shunt active filter with this modified controller controls the real power supplied by the grid (source) in addition to its usual functions such as reactive power compensation, power factor correction and harmonic elimination. The non-linear load is diode bridge rectifier feeding resistive load and the unbalanced load also introduced to verify the controller performance. The simulation of the proposed system under both balanced and unbalanced load conditions have been done and the obtained results prove the effectiveness of using a shunt active filter as the interfacing unit for grid integrated renewable energy system.</p>

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2012

Journal Article

K. Ilango, Bhargav, A., Trivikram, A., Kavya, P. S., Mounika, G., Vivek, N., and Nair, M. G., “STATCOM Interface for Renewable Energy Sources with Power Quality Improvement”, Elsevier- AASRI Procedia, vol. 2, pp. 69 - 74, 2012.[Abstract]


<p>The increasing hitches related to environmental issues have forced researchers to look out for safe and efficient methods of power generation, which consequentially calls for the renewable energy sources, out of which wind energy is recognized as the most rapidly growing technically viable and cost-efficient renewable source for power generation. Implementation of renewable energy source needs extensive usage of power electronics based utility interfaces to effectively meet the İEEE\} 1547 renewable energy power quality standards. In this paper, a digital controller based on modified ‘IcosΦ’ algorithm has been developed for achieving an effective custom power device interface, with power sharing between the grid and renewable energy source, along with reactive power compensation and power factor correction on a dynamically varying linear load system.</p>

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