Dr. Deepak Mishra

@imu.edu.in

Assistant Professor, Marine Engineering Department
Indian Maritime Univeristy Kolkata

Dr. Deepak Mishra


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https://researchid.co/deepak2010urs
Dr. Deepak Mishra received the Ph.D. degree from IIT(ISM) Dhanbad, India, in 2020. He is currently working as an Assistant Professor with the Department of Marine Engineering and Technology, Indian Maritime University Kolkata, India. His current field of interest includes condition monitoring of high-voltage power
equipment.

RESEARCH INTERESTS

High Voltage, power system,Condition monitoring of high voltage equipments
19

Scopus Publications

424

Scholar Citations

11

Scholar h-index

14

Scholar i10-index

Scopus Publications

  • Reliable Assessment of Oil-Paper Insulation Used in Power Transformer Using Concise Dielectric Response Measurement
    Deepak Mishra, Arijit Baral, Sivaji Chakravorti
    IEEE Transactions on Dielectrics and Electrical Insulation, 2023
    Oil-impregnated paper is usually the preferred choice of insulation in power transformers. The working life of any transformer depends on its insulation condition. The paper conductivity, moisture content, and dissipation factor of solid insulation are a few crucial parameters used to determine the insulation condition. The reliable estimation of such parameters for the diagnosis of solid insulation requires a complete profile of polarization current, which is time-consuming. Hence, utilities always prefer noninvasive and rapid techniques to predict insulation conditions and minimize shutdown time. The proposed technique is based on short-duration polarization current data. The present manuscript suggested a method that uses the initial decay rate (IDR) of recorded polarization current data to predict various performance parameters related to paper insulation. In order to show the effectiveness of the proposed method, the analysis is performed on the data measured from various in situ transformers.
  • Importance of Depolarization Current in the Diagnosis of Oil-Paper Insulation of Power Transformer
    Alok Kumar, Deepak Mishra, Arijit Baral
    IEEE Access, 2023
    Recently, Polarization Depolarization current (PDC) measurement is widely accepted time domain spectroscopy-based method for assessing the insulation condition. Various performance parameters like Dissipation factor (%tan $\\delta $ ), Paper Moisture (%pm), Dielectric Adsorption Ratio (DAR), Polarization index (PI) etc. can be estimated by analyzing the PDC data. During field measurement various factors influences the recorded PDC data. As per existing literature, presence of low frequency noise, effect of temperature variation and influence of residual charge are common during field measurement. These factors significantly affect recorded polarization current and hence estimated performance parameters. Hence, analysis using recorded polarization current data may provide misleading information regarding insulation condition. Under such practical situation where polarization current is affected by above mentioned factors that generally observed during field measurement, depolarization current should be used for analysis of insulation condition. The depolarization current does not influence by such external factors. The present work shows the importance of depolarization current where polarization current is influenced by external low frequency noise and residual charge. The analysis firstly applied on sample prepared in the laboratory and then on data collected from real life in-situ transformers. The results obtained from the analysis shows that the data obtained from depolarization current is more reliable.
  • A Novel and Fast Approach for Sensing Activation Energy for Reliable Health Assessment of Power Transformer
    D. Mishra, A. Baral, S. Chakravorti
    IEEE Sensors Journal, 2022
    Activation energy represents the average rate of interaction between aging by-products and cellulose. Activation energy is a crucial parameter that can be used to identify the remaining life of insulation in high voltage (HV) equipment. Existing noninvasive methods take a significantly longer time to sense activation energy for given insulation. This is primarily due to the volume of data required for such analysis, which generally takes significant time to measure. This work reports a noninvasive and effective approach to predict activation energy of oil–paper insulation using a dielectric response that is recorded for a very short span of time. The proposed method requires polarization current data sensed for a few seconds (15–20 s) to operate. The initial decay rate (DR) of the sensed data is found to be sensitive to the activation energy. This feature of the initial DR is utilized to sense the value of activation energy within a short duration. The proposed technique utilizes the current sensor (present within an electrometer) more efficiently. This facilitates the measurement of a highly accurate polarization profile and ensures reliable activation energy estimation. The proposed methodology has been successfully applied to data collected from a few real-life transformers. Reported results show that the suggested method provides satisfactory results with good accuracy.
  • Prediction of Insulation Sensitive Parameters of Power Transformer Using Detrended Fluctuation Analysis Based Method
    Saurabh Dutta, Jagriti Dey, Deepak Mishra, Arijit Baral, Sivaji Chakravorti
    IEEE Transactions on Power Delivery, 2022
    Utilities prefer to perform a condition-based assessment of power transformer insulation in the least possible shutdown time. It is essential to estimate the values of various insulation condition sensitive performance parameters with higher accuracy. In the present work, a technique for the estimation of performance parameters, moisture content of paper, dissipation factor of the entire oil-paper insulation, paper conductivity, and activation energy is proposed. The evaluation of these parameters using reported techniques requires complete measurement of polarization and depolarization current profile, which requires around 20000 s of measurement time. The present method uses a forecasted polarization current profile obtained from 600 s of measured polarization current data. Detrended Fluctuation Analysis is applied to the forecasted polarization current data obtained from various in-service power transformers to obtain a suitable parameter. It is shown that this parameter maintains well-defined relationships with parameters; moisture content of paper, dissipation factor of oil-paper insulation, paper conductivity, and activation energy. The proposed technique is beneficial for utilities as it eliminates the requirement of measuring depolarization current and return voltage measurement for estimating activation energy.
  • A Novel Method to Predict Severity of Thermal Aging and Degree of Polymerization for Reliable Diagnosis of Dry-Type Insulation
    S. Mishra, A. Baral, D. Mishra, S. Chakravorti
    IEEE Transactions on Dielectrics and Electrical Insulation, 2022
    The effect of thermal aging on Nomex-paper-based vacuum pressure impregnation (VPI) insulation is reported in this article. The frequency-dependent dielectric loss of Nomex-paper-based VPI dry insulation is affected after significant thermal aging. This variation in dielectric loss of the insulation maintains a good correlation with the duration of thermal aging. A new parameter sensitive to the severity of thermal aging is also introduced. To identify the parameter, the excitation voltage waveform and the corresponding insulation response at a given frequency are required. Determining the parameter does not require denoising of recorded waveforms, reducing the overall computational burden. Based on the newly introduced parameter, a cost-effective method is proposed to predict the dielectric loss and degree of polymerization (DP) in a thermally aged VPI-type dry insulation. The proposed method employs the intermediate frequency range and hence does not require time-consuming low-frequency measurements.
  • Performance Evaluation : Anti-windup Two-loop PID Controller for Rotary Single Inverted Pendulum
    Sandeep Pandey, Prakash Dwivedi, Deepak Mishra
    2021 IEEE 8th Uttar Pradesh Section International Conference on Electrical Electronics and Computer Engineering Upcon 2021, 2021
    In this paper, two loop Anti-windup PID controller is designed for Set-point tracking of Rotating arm and balancing vertical position of Pendulum of Rotary Single Inverted Pendulum. Controller ((feedback)) gains are obtained via pole placement and tuned by using the LQR technique. Comparative analysis of observer based pole placement controller, LQR and two-loop Anti-windup PID controller are experimentally illustrated. Steady-state error persists during the operation of two loop PD controller. In order to reduce this steady state error, integral term is added in controller. Due to violation of voltage constraints, an undesirable phenomena known as integral windup occurs. To overcome integral windup, Anti-windup technique (conditional integration) is used with two loop PID controller. Experimental result shows that proposed two loop Anti-windup PID controller gives better set-point tracking and a minimum steady-state error as compared to other controllers.
  • Estimation of de-trapped charge for diagnosis of transformer insulation using short-duration polarisation current employing detrended fluctuation analysis
    Saurabh Dutta, Deepak Mishra, Arijit Baral, Sivaji Chakravorti
    High Voltage, 2020
    Researchers have shown that the value of charge carriers, de-trapped from the oil–paper interface of power transformer insulation, is useful in carrying out the diagnosis. However, the evaluation of the de-trapped charge requires the analysis of polarisation–depolarisation currents. Being an off-line time-consuming process, the measurement and analysis of polarisation and depolarisation current (PDC) data are not practically advantageous. The study presents a detrended fluctuation analysis-based technique to estimate the magnitude of normalised de-trapped charge using the polarisation current measured for a short duration. Using the proposed technique, the requirement of measuring the complete PDC data, for diagnosis purposes, can be eliminated. Further, the technique also eliminates the requirement of depolarisation current which in turn facilitates a reduction in equipment shutdown time. The applicability of the proposed technique is tested on the data obtained from several real-life power transformers.
  • Investigation related to performance parameter estimation of power transformer insulation using interfacial charge
    D. Mishra, R. Verma, A. Baral, S. Chakravorti
    IEEE Transactions on Dielectrics and Electrical Insulation, 2020
    In the present paper, geometric capacitance is used as a normalization factor instead of DC insulation resistance. The results suggest geometric capacitance is more efficient in reducing geometry effect on the DC-trapped charge. The influence of normalizing deep charge using DC insulation resistance and geometric capacitance and their effect on estimating various insulation sensitive parameters are compared in this paper.
  • Condition Assessment of Power Transformer Insulation Using Short-Duration Time-Domain Dielectric Spectroscopy Measurement Data
    Deepak Mishra, Arijit Baral, Nasirul Haque, Sivaji Chakravorti
    IEEE Transactions on Instrumentation and Measurement, 2020
    Utilities prefer noninvasive methods for assessing the condition of power transformer insulation. Analysis of polarization–depolarization current (PDC) is one such popular method. One such analysis involves the estimation of trapped charge released from the interfacial region of oil–paper insulation. The literature shows that such charges can be reliably used for the diagnosis of transformer insulation. However, such analysis requires a complete profile of PDC. PDC measurement (an offline technique) takes a large amount of time (several hours) to complete. The magnitude of PDC data for a larger value of time is also sensitive to changes in environmental conditions and field noise as its magnitude is low. Hence, a reliable estimation of detrapped charge may require numerous PDC measurements. This situation is not convenient for utilities as it prolongs shut down time. In this article, a method has been proposed which is capable of estimating detrapping charge using PDC data measured for a short span of time. The proposed method is tested on data collected from several real-life in-service transformers.
  • De-noising of time-domain spectroscopy data for reliable assessment of power transformer insulation
    Deepak Mishra, Arijit Baral, Sivaji Chakravorti
    Iet Generation Transmission and Distribution, 2020
    Polarisation-depolarisation current (PDC) measurement and its analysis is a popular technique for assessing the condition of transformer insulation. Owing to the low magnitude of PDC, recording noise-free PDC data from in-situ power transformers is a challenge. Once the relaxation current data get affected by noise, it becomes difficult to formulate insulation model (as recorded data loses its characteristic shape). This further makes the data difficult to analyse and predict insulation condition. In this study, two de-noising techniques are discussed (one is based on Wavelet Transform while the other is based on Stockwell Transform) for eliminating low-frequency non-stationary noise from recorded PDC data. Comparison between these two techniques suggests de-noising using Stockwell Transform is advantageous over wavelet analysis. The proposed methodology is first tested on data recorded from the sample prepared in the laboratory and then on data measured from real-life in-service power transformer.
  • New approach to design D-flip flop and two bit down counter using optical micro-ring resonator for high speed data processing
    N. Verma, D. Mishra
    SN Applied Sciences, 2020
  • A Method to Predict Degree of Polymerization Value of Oil-paper Insulation Using Interfacial Charge
    Vijeta Singh, Deepak Mishra, Arijit Baral, Sivaji Chakravorti
    2019 8th International Conference on Power Systems Transition Towards Sustainable Smart and Flexible Grids Icps 2019, 2019
  • Estimation of paper conductivity from short duration polarisation–depolarisation current for diagnosis of power transformer
    Deepak Mishra, Nasirul Haque, Arijit Baral, Sivaji Chakravorti
    Iet Science Measurement and Technology, 2019
  • Influence of temperature on interfacial charge of power transformer insulation
    Saurabh Dutta, Deepak Mishra, Nasirul Haque, Arpan Kumar Pradhan, Arijit Baral, Sivaji Chakravorti
    Iet Science Measurement and Technology, 2019
  • Use of interfacial charge for diagnosis and activation energy prediction of oil-paper insulation used in power transformer
    Deepak Mishra, Saurabh Dutta, Arijit Baral, Nasirul Haque, Sivaji Chakravorti
    IEEE Transactions on Power Delivery, 2019
  • Reduction of time domain insulation response measurement duration for fast and effective diagnosis of power transformer
    D. Mishra, A. K. Pradhan, A. Baral, S. Chakravorti
    IEEE Transactions on Dielectrics and Electrical Insulation, 2018
  • Compensating the effect of residual dipole energy on dielectric response for effective diagnosis of power transformer insulation
    Deepak Mishra, Arijit Baral, Sivaji Chakravorti
    Iet Science Measurement and Technology, 2018
  • Effect of charge accumulated at oil-paper interface on parameters considered for power transformer insulation diagnosis
    Deepak Mishra, Nasirul Haque, Arijit Baral, Sivaji Chakravorti
    Iet Science Measurement and Technology, 2018
  • Assessment of interfacial charge accumulation in oil-paper interface in transformer insulation from polarization-depolarization current measurements
    D. Mishra, N. Haque, A. Baral, S. Chakravorti
    IEEE Transactions on Dielectrics and Electrical Insulation, 2017

RECENT SCHOLAR PUBLICATIONS

  • The future of global Ramsar wetlands under intensifying precipitation extremes: Arid regions as emerging hotspots
    D Mishra, NN Kumar, S Singh, MK Goyal
    Environmental Impact Assessment Review 118, 108275 , 2026
    2026
    Citations: 2
  • A non-invasive measurement-based modeling for assessing power transformer aging and reliability
    D Mishra, V Chopra, D Mishraa, A Baral
    Measurement, 120968 , 2026
    2026
  • Selective Functionalization of 1-substituted-3-arylquinoxalin-2 (1 H)-ones via C–H activation
    P Kumar, S Dutta, D Mishra, N Kumar
    RSC Advances 16 (19), 17005-17020 , 2026
    2026
    Citations: 1
  • Short-Duration Current Analysis for Predictive Aging Estimation in Power Transformer Insulation
    D Mishra, A Baral, S Chakravorti
    IEEE Transactions on Power Delivery , 2025
    2025
  • An efficient and fast nondestructive testing method for estimating DP value of oil–paper insulation
    D Mishra, A Baral, S Chakravorti
    IEEE Transactions on Plasma Science , 2025
    2025
    Citations: 1
  • Spatial differentiation of proteome in cervical cancer tissues using Imaging Mass Spectrometry
    A Baliyan, I Mohapatra, S Paul, AA Safiriyu, SK Mondal, D Mishra, ...
    bioRxiv, 2025.04. 12.648495 , 2025
    2025
  • Compensating the Impact of Residual Energy on Time Domain Dielectric Response Using Time-Varying Model
    CM Banerjee, D Mishra, A Baral, S Chakravorti
    IEEE Sensors Journal , 2025
    2025
  • Selective functionalization of 2-phenyl-4H-benzo [d][1, 3] oxazin-4-ones via C–H activation
    P Kumar, S Dutta, D Batra, D Mishra, D Kumar, G Bhalla, BK Singh
    Tetrahedron 173, 134466 , 2025
    2025
    Citations: 3
  • Investigation of the Quenching Factor for Silicon and Germanium Using Molecular Dynamics Simulations
    D Mishra, L Singh, ST Lin, HTK Wong, V Singh
    The DAE-BRNS High Energy Physics (HEP) Symposium, 1505-1508 , 2024
    2024
  • HVDC Submarine Cable: A Perspective towards Accomplishing UN’s SDGs for Indian Marine Ecology
    S Parveen, D Mishra, D Mishra
    Climate Crisis and Sustainable Solutions: Strategies for Adaptation … , 2024
    2024
  • A Time-Efficient and Innovative Method to Determine the DP Value of Power Transformer Insulation
    D Mishra, S Parveen, A Baral, S Chakravorti
    2024 IEEE 7th International Conference on Condition Assessment Techniques in … , 2024
    2024
  • Visual Cryptography Technique for Enhancing the Security and Contrastness of Image Transaction
    S Kumari, S Pandey, D Mishra
    2024 5th International Conference on Smart Electronics and Communication … , 2024
    2024
    Citations: 1
  • Reliable sensing of insulation sensitive performance parameters using time domain-based measurement at different temperatures
    D Mishra, S Parveen, A Baral, S Chakravorti
    IEEE Sensors Journal 23 (20), 25411-25419 , 2023
    2023
    Citations: 4
  • A nonlinear regression-based approach to assess transformer insulation condition using dielectric response recorded for short duration
    D Mishra, A Baral, S Chakravorti
    IEEE Transactions on Instrumentation and Measurement 72, 1-9 , 2023
    2023
    Citations: 7
  • Importance of depolarization current in the diagnosis of oil-paper insulation of power transformer
    A Kumar, D Mishra, A Baral
    IEEE Access 11, 56858-56864 , 2023
    2023
    Citations: 11
  • Reliable assessment of oil-paper insulation used in power transformer using concise dielectric response measurement
    D Mishra, A Baral, S Chakravorti
    IEEE Transactions on Dielectrics and Electrical Insulation 30 (3), 1255-1264 , 2023
    2023
    Citations: 20
  • A xanthene-based probe with dual reaction sites enables fluorescence turn-on detection of thiophenol in an aqueous medium
    B Priya, N Kumar, D Mishra
    New Journal of Chemistry 47 (6), 2942-2948 , 2023
    2023
    Citations: 5
  • Analysis of thermal behaviour of a microprocessor using simulation and experiment
    N Das, S Mondal, D Mishra
    Indian Maritime University, Kolkata Campus , 2023
    2023
  • Sensorless field oriented control of AC induction motor using PI, PD & PID controllers
    NJ Antony, D Mishra, S Parveen
    2022 IEEE North Karnataka Subsection Flagship International Conference … , 2022
    2022
    Citations: 7
  • A novel and fast approach for sensing activation energy for reliable health assessment of power transformer
    D Mishra, A Baral, S Chakravorti
    IEEE Sensors Journal 22 (21), 21145-21152 , 2022
    2022
    Citations: 3

MOST CITED SCHOLAR PUBLICATIONS

  • Assessment of interfacial charge accumulation in oil-paper interface in transformer insulation from polarization-depolarization current measurements
    D Mishra, N Haque, A Baral, S Chakravorti
    IEEE Transactions on dielectrics and electrical insulation 24 (3), 1665-1673 , 2017
    2017
    Citations: 91
  • Condition assessment of power transformer insulation using short-duration time-domain dielectric spectroscopy measurement data
    D Mishra, A Baral, N Haque, S Chakravorti
    IEEE Transactions on Instrumentation and Measurement 69 (7), 4404-4411 , 2019
    2019
    Citations: 46
  • Use of interfacial charge for diagnosis and activation energy prediction of oil-paper insulation used in power transformer
    D Mishra, S Dutta, A Baral, N Haque, S Chakravorti
    IEEE Transactions on Power Delivery 34 (4), 1332-1340 , 2019
    2019
    Citations: 32
  • Reduction of time domain insulation response measurement duration for fast and effective diagnosis of power transformer
    D Mishra, AK Pradhan, A Baral, S Chakravorti
    IEEE Transactions on Dielectrics and Electrical Insulation 25 (5), 1932-1940 , 2018
    2018
    Citations: 31
  • Effect of charge accumulated at oil–paper interface on parameters considered for power transformer insulation diagnosis
    D Mishra, N Haque, A Baral, S Chakravorti
    IET Science, Measurement & Technology 12 (3), 411-417 , 2018
    2018
    Citations: 27
  • Estimation of de‐trapped charge for diagnosis of transformer insulation using short‐duration polarisation current employing detrended fluctuation analysis
    S Dutta, D Mishra, A Baral, S Chakravorti
    High Voltage 5 (5), 636-641 , 2020
    2020
    Citations: 21
  • Reliable assessment of oil-paper insulation used in power transformer using concise dielectric response measurement
    D Mishra, A Baral, S Chakravorti
    IEEE Transactions on Dielectrics and Electrical Insulation 30 (3), 1255-1264 , 2023
    2023
    Citations: 20
  • A novel method to predict severity of thermal aging and degree of polymerization for reliable diagnosis of dry-type insulation
    S Mishra, A Baral, D Mishra, S Chakravorti
    IEEE Transactions on Dielectrics and Electrical Insulation 29 (2), 631-640 , 2022
    2022
    Citations: 16
  • New approach to design D-flip flop and two bit down counter using optical micro-ring resonator for high speed data processing
    N Verma, D Mishra
    SN Applied Sciences 2, 1–13 , 2020
    2020
    Citations: 15
  • Prediction of insulation sensitive parameters of power transformer using detrended fluctuation analysis based method
    S Dutta, J Dey, D Mishra, A Baral, S Chakravorti
    IEEE Transactions on Power Delivery 37 (3), 1963-1973 , 2021
    2021
    Citations: 14
  • Compensating the effect of residual dipole energy on dielectric response for effective diagnosis of power transformer insulation
    D Mishra, A Baral, S Chakravorti
    IET Science, Measurement & Technology 12 (3), 314-322 , 2018
    2018
    Citations: 14
  • Importance of depolarization current in the diagnosis of oil-paper insulation of power transformer
    A Kumar, D Mishra, A Baral
    IEEE Access 11, 56858-56864 , 2023
    2023
    Citations: 11
  • De‐noising of time‐domain spectroscopy data for reliable assessment of power transformer insulation
    D Mishra, A Baral, S Chakravorti
    IET Generation, Transmission & Distribution 14 (8), 1500-1507 , 2020
    2020
    Citations: 11
  • Investigation related to performance parameter estimation of power transformer insulation using interfacial charge
    D Mishra, R Verma, A Baral, S Chakravorti
    IEEE Transactions on Dielectrics and Electrical Insulation 27 (4), 1247-1255 , 2020
    2020
    Citations: 10
  • A nonlinear regression-based approach to assess transformer insulation condition using dielectric response recorded for short duration
    D Mishra, A Baral, S Chakravorti
    IEEE Transactions on Instrumentation and Measurement 72, 1-9 , 2023
    2023
    Citations: 7
  • Sensorless field oriented control of AC induction motor using PI, PD & PID controllers
    NJ Antony, D Mishra, S Parveen
    2022 IEEE North Karnataka Subsection Flagship International Conference … , 2022
    2022
    Citations: 7
  • Estimation of paper conductivity from short duration polarisation–depolarisation current for diagnosis of power transformer
    D Mishra, N Haque, A Baral, S Chakravorti
    IET Science, Measurement & Technology 13 (8), 1178-1185 , 2019
    2019
    Citations: 7
  • Influence of temperature on interfacial charge of power transformer insulation
    S Dutta, D Mishra, N Haque, AK Pradhan, A Baral, S Chakravorti
    IET Science, Measurement & Technology 13 (7), 1059-1067 , 2019
    2019
    Citations: 6
  • A xanthene-based probe with dual reaction sites enables fluorescence turn-on detection of thiophenol in an aqueous medium
    B Priya, N Kumar, D Mishra
    New Journal of Chemistry 47 (6), 2942-2948 , 2023
    2023
    Citations: 5
  • Effect of charge accumulated at oil-paper interface on parameters considered for power transformer insulation diagnosis (vol 12, pg 411, 2017)
    D Mishra, N Haque, A Baral
    IET SCIENCE MEASUREMENT & TECHNOLOGY 12 (7), 937-937 , 2018
    2018
    Citations: 5