Qualification: 
M.E
a_anjanajain@blr.amrita.edu

Anjana Jain currently serves as Assistant Professor (Sr. Gr.) at the department of Electrical & Electronics, School of Engineering, Amrita Vishwa Vidyapeetham, Bengaluru campus. 

Publications

Publication Type: Book Chapter

Year of Publication Title

2020

H. Priya U., P., J., S., P. V. V. S., Dr. K. Deepa, and Anjana Jain, “Energy Conservation Strategy for DC Motor Load Applications”, in Recent Trends and Advances in Artificial Intelligence and Internet of Things, V. E. Balas, Kumar, R., and Srivastava, R., Eds. Cham: Springer International Publishing, 2020, pp. 177–186.[Abstract]


DC Electric motors convert nearly half of the worldwide electric energy into mechanical energy. In many industrial applications DC motor finds a good place for variable speed and versatile operations due to its easy controllability. This paper deals with the energy conservation for a separately excited DC motor by applying speed control technique. The experimental setup is established for the system and speed control is carried out through variable armature input voltage using firing angle control.

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Publication Type: Conference Paper

Year of Publication Title

2018

Anjana Jain and R. Saravanakumar, “Comparative Analysis of DSOGI-PLL amp; Adaptive Frequency Loop-PLL for Voltage and Frequency control of PMSG-BESS based Hybrid Standalone WECS”, in 2018 8th International Conference on Power and Energy Systems (ICPES), Colombo, Sri Lanka, Sri Lanka, 2018.[Abstract]


3-phase PLL (phase-locked-loop) are the key elements for frequency & phase estimation of a balanced/disturbance voltage of the power system subjected to disturbances. Accurate measurement of generator speed in wind energy conversion system (WECS) is the most crucial task and it is worsening in disturbed voltage states. A dual-second-order-generalized-integrator (DSOGI)-PLL based control for load side bidirectional voltage source converter (VSC) is discussed in this paper for standalone hybrid variable speed WECS comprising of permanent magnet synchronous generator (PMSG) and & battery energy storage system (BESS). DSOGI-PLL based control scheme is presented here for voltage and frequency control. A MATLAB/Simulink-model is prepared for the system under study and a detailed simulation is performed. The effectiveness of the controller under study is checked by comparing it with Adaptive frequency loop-PLL based controller for different working conditions; like variable wind velocity, load variation, load disturbances, and faults. It is concluded from the simulation study that DSOGI-PLL gives comparative better performance during transient like: fault and unbalanced/disturbed voltage conditions. DSOGI-PLL removes the harmonics and disturbances from the signal (dq-axis component generation) as compared to Adaptive frequency loop-PLL. Proposed controller provides excellent control for VSC. BESS is able to perform load balancing during variations in wind-velocity and load.

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2018

R. Saravanakumar and Anjana Jain, “Design of Complementary Sliding Mode Control for Variable Speed Wind Turbine”, in 2018 8th International Conference on Power and Energy Systems (ICPES), 2018.[Abstract]


The wind turbine efficiency increases by controlling the rotor speed to its optimal value. A nonlinear controller, which is robust towards uncertainties in the dynamic plant model and unknown disturbances, is designed for better capture of rotor speed. This paper focuses on an effective wind speed based complementary sliding mode controller (CSMC) designed for wind turbine. The main objective of the controller is to extract the maximum power from wind at region 2 (below rated wind speed) with minimum oscillation on the drive train. The controller stability is validated by Lyapunov function. The proposed and existing control algorithms are validated using a FAST 600kW model which is developed by NREL (National Renewable Energy Laboratory). The efficacy of the proposed controller is validated by comparing it with typical nonlinear controller such as sliding mode and integral sliding mode controller. A detailed simulation is performed for typical and proposed control strategies for different mean wind speed profiles. The simulations results shows that, complementary sliding mode controller gives better performance than typical control strategies.

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2017

S. Trivedi, Sharma, P., Chaitanya, R., Gopal, S., ,, Anjana Jain, and S., S., “Simulation study of Permanent Magnet Synchronous Generator (PMSG) connected to variable speed Wind Energy Conversion System (WECS)”, in International Conference on Trends in Electronics and Informatics (ICEI 2017), , 2017.

2016

A. Patel, Arya, S. Raj, and Anjana Jain, “Variable step Learning Based Control Algorithm for Power Quality in PMSG Based Power Generation System”, in IEEE International Conference PIICON 2016, Bikaner, India, 2016.[Abstract]


In this article, Power generation system model includes a turbine model of wind system, PMSG model, and a Simulink model of drive train. The generated power through the wind power plant is fed to three phase linear and non-linear load. The power electronics based shunt connected custom power devices are used to suppress the power quality problems at constant speed turbine. The objective of this paper is to compensate harmonic and reactive power due to non-linearity of loads and maintained rated voltage at the point of common interface (PCI). This shunt connected compensator as a DSTATCOM is controlled through variable step learning based adaptive control algorithm. The simulation waveforms show the satisfactory performance of PMSG System and the control algorithm.

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2016

V. E. Puranik, Arya, S. Raj, and Anjana Jain, “Comparative Study of Compensation Techniques of DVR with Composite Observer”, in Biennial International Conference on Power and Energy Systems: Towards Sustainable Energy (PESTSE) 2016, Bangalore, India, 2016.[Abstract]


Dynamic Voltage Restorer (DVR) is able to protect critical loads against source voltage power quality problems in effectively nature. In this paper, in phase control and minimal energy control technique has been discussed under balanced, unbalanced and distorted non-ideal ac mains. The algorithm based on composite observer has been proposed for both techniques. The three wire distribution system is simulated using MATLAB environments. The performance results are obtained under various supply voltage disturbances. After study, recorded observations are found satisfactory according to IEEE guidelines.

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2015

Anjana Jain and B. Reddy, J., “Control of Doubly Fed Induction Generator Connected to Variable Speed Wind Turbine”, in IEEE International Conference on Technological Advancements in Power & Energy (TAP Energy) 2015, Kollam, India, 2015, pp. 500-505.[Abstract]


Proposed is a control strategy of voltage and frequency control for a doubly fed induction generator (DFIG) connected to variable speed wind turbines. The scheme is based on stator voltage vector represented in a rotating polar coordinate system. Modified direct voltage control strategy for rotor side converter is used. The control pulses for the rotor side converter are supplied by the hysteresis controller. Simulation and analysis of a 5HP grid connected variable speed DFIG based on wind power generation system is presented to demonstrate the system performance in different operating conditions. The operating conditions are based on the change in wind velocity.

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Publication Type: Journal Article

Year of Publication Title

2018

G. Deepthi, Anjana Jain, and Shankar, S., “Instantaneous Reactive Power Theorem (IRPT) based control of Doubly Fed Induction Generator (DFIG) connected to variable speed wind turbine”, Journal of Engg. and Applied Science, vol. 13, no. 8, pp. 6316-6323, 2018.[Abstract]


This research includes study of Doubly Fed Induction Generator (DFIG) connected to variable speed Wind Energy Conversion System (WECS). WECS connected to grid is composed of back-to-back PWM converters on the rotor side. Instantaneous Reactive Power Theorem (IRPT) based control technique is used for Rotor Side Converter (RSC) control and Direct Power Control (DPC) is used for Grid Side Converter (GSC) control. Proposed control strategy is used for voltage and frequency control of DFIG. IRPT helps in reactive power compensation, attaining unity power factor and reduction of harmonics. The developed system is validated using MATLAB/Simulink for different dynamic conditions.

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2018

Anjana Jain, R. Saravanakumar, Shankar, S., and Dr. Vanitha V., “Adaptive SRF-PLL Based Voltage and Frequency Control of Hybrid Standalone WECS with PMSG-BESS”, International Journal of Emerging Electric Power Systems, vol. 19, no. 6, 2018.[Abstract]


The variable-speed Permanent Magnet Synchronous Generator (PMSG) based Wind Energy Conversion System (WECS) attracts the maximum power from wind, but voltage-regulation and frequency-control of the system in standalone operation is a challenging task A modern-control-based-tracking of power from wind for its best utilization is proposed in this paper for standalone PMSG based hybrid-WECS comprising Battery Energy Storage System (BESS). An Adaptive Synchronous Reference Frame Phase-Locked-Loop (SRF-PLL) based control scheme for load side bi-directional voltage source converter (VSC) is presented for the system. MATLAB/Simulink model is developed for simulation study for the proposed system and the effectiveness of the controller for bi-directional-converter is discussed under different operating conditions: like variable wind-velocity, sudden load variation, and load unbalancing. Converter control scheme enhances the power smoothening, supply-load power-matching. Also it is able to regulate the active & reactive power from PMSG-BESS hybrid system with control of fluctuations in voltage & frequency with respect to varying operating conditions. Proposed controller successfully offers reactive-power-compensation, harmonics-reduction, and power-balancing. The proposed scheme is based on proportional & integral (PI) controller. Also system is experimentally validated in the laboratory-environment and results are presented here.

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2018

Anjana Jain, S., S., and Dr. Vanitha V., “Power generation using Permanent Magnet Synchronous Generator (PMSG) Based Variable Speed Wind Energy Conversion System (WECS): An Overview”, Journal of Green Engineering, vol. 7, no. 4, pp. 477–504, 2018.[Abstract]


In the recent time, Permanent-Magnet Synchronous-Generator (PMSG) based variable-speedWind-Energy Conversion-Systems (WECS) has become very attractive to many researchers. The research aim is to analyse different synchronous machine and compare them based on their maximum power generation. This paper reviews various aspects of PMSG such as topologies with controlled and uncontrolled rectifier, grid-connected and standalone mode of operation with various control methods of PMSG based WECS and recent optimization approaches. The performance analysis of PMSG can be enhanced by adopting a number of control mechanisms with the benefit of advanced optimization techniques. Acomparative analysis is carried out based on the techniques used and their corresponding advantages and drawbacks are discussed.

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2016

Anjana Jain, Vijay, C. Tejaswini, S., S., and S., G., “Comparative Analysis of Direct Power Control (DPC) and Direct Voltage Control (DVC) for Control of Doubly Fed Induction Generator (DFIG) Connected to a Variable Speed Wind Turbine”, International Journal of Control Theory and Applications (IJCTA), vol. 9, no. 18, pp. 8961-8971, 2016.[Abstract]


A relative study of two control strategies for the control of Doubly Fed Induction Generator (DFIG) attached to a variable speed wind turbine is carried out in this paper. Control1 uses direct power control (DPC) strategy which involves control of active and reactive power. The results indicate that active and reactive power follows the corresponding reference values at different operating conditions. In control2, the modified direct voltage control (DVC) scheme is used for control of RSC. The supply side converter is given with vector voltage control. The comparative analysis is carried out by using MATLAB/SIMULINK model of the system. Also THD analysis is done for the obtained results.

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