Dr.J Srinivas Rao

@anurag.ac.in

Research Associate
Anurag Engineering College



              

https://researchid.co/janigasrinivasrao

RESEARCH, TEACHING, or OTHER INTERESTS

Electrical and Electronic Engineering, Electrical and Electronic Engineering

11

Scopus Publications

109

Scholar Citations

6

Scholar h-index

5

Scholar i10-index

Scopus Publications


  • Comparison of Control Techniques & Modeling of 15-level cross H Bridge Multilevel Inverter
    Suresh Kumar Tummala, Sameera Shaik, D. Srinivasa Rao, Srinivas Rao J, Ibrahim H. Al-Kharsan, and Dharmendra Kumar
    EDP Sciences
    This paper presents the simulation of a 15-level cross-H bridge multilevel inverter using control techniques like sinusoidal pulse width modulation and third harmonic injection pulse width modulation. This paper aims to enhance output voltage level using fewer switches and to decrease total harmonic distortion by improving overall efficiency. Compared to other inverter topologies cross H bridge topology uses a lesser number of switches and dc voltages. Analysis and simulation of 15-level cross H bridge MLI are performed and presented.

  • Bibliography analysis of Multilevel Inverters (2021-2022)
    Srinivas Rao Janiga, Suresh Kumar Tummala, Ibrahim H. Al-Kharsan, and Ruby Faizan
    EDP Sciences
    This article presents bibliography of multilevel inverters from 2021-2022. The list of journal papers relating to multilevel inverters is included. The bibliography includes papers from 2021-2022.

  • Comparative Exploration of 19-level and 21-level Cascaded H- Bridge MLI with Cross H-Bridge MLI
    Srinivas Rao J., Tummala Suresh Kumar, Hassan Mohmmed Al-Jawahry, and Manisha Saini
    EDP Sciences
    Present days renewable energy sources based grids are developing which needs inverters to convert power from DC to AC. 2-level inverters were used for this purpose to overcome the drawbacks of 2-level inverters multilevel inverters are developed. Because of the combination of numerous devices in a series structure, multilevel inverters provide outstanding solutions to high voltage, high power applications. With the use of suitable simulations and mathematical analysis, this paper compares the performance of 19 and 21-level cascaded H-Bridges with cross H-Bridge MLI. Total Harmonic Distortion levels, switching device count, and inverter output voltage and current are all compared. The primary issues brought up in this study are limitations of a number of switching devices that can support high voltage in the inverter. The benefit of this research is that it identifies the right inverter that can be utilised for real-time applications by taking the variables into account. The count of switching devices, output voltage, current, and harmonic distortion, among other factors. The Matlab/Simulink Platform is used to validate the analysis.

  • Comparative analysis of PWM techniques for 15-level cross-connected H bridge inverter
    J. Srinivas Rao, Suresh Kumar Tummala, and Narasimha Raju Kuthuri
    Springer Science and Business Media LLC

  • Single stage switching operation of 9-level cascaded H-bridge multilevel inverter
    J. Srinivas Rao, Suresh Kumar Tummala, and G. Chandra Babu
    IEEE
    To increase the power capability and quality multilevel inverters are extensively used. The maintenance and switch stress of two stage switched capacitor module is high. So, this drawback can overcome by using single stage switching operation. In 9-level cascaded h-bridge multilevel inverter by using single stage switching operation, the number of switches is less and using only one source. Proposed topology gives high efficiency, faster response and high-power density compared to two stage switched capacitor module. The simulation is performed in MATLAB/SIMULINK environment.

  • 7-Level Semi Cross Switched Multilevel Inverter Fed Induction Motor Drive
    Srinivas Rao Janiga and Suresh Kumar Tummala
    EDP Sciences
    Multilevel inverters have more prominent features than 2-level inverter due to various advantages like voltage quality, low EMI etc. The semi cross switched multilevel converter topology need less number of semiconductor switches compared to cascaded H-bridge multilevel inverter, and can be implemented to any number of voltage levels. The operating modes of 7-level semi cross switched multi level inverter are discussed. Three phase seven level inverter fed induction motor is implemented in MATLAB/SIMULINK.

  • Comparative investigation of 15 level and 17 level cascaded h-bridge mli with cross h-bridge mli fed permanent magnet synchronous motor
    J. Srinivas Rao, Suresh Kumar Tummala, and Narasimha Raju Kuthuri
    Institute of Advanced Engineering and Science
    Multilevel inverters offers eminent solutions to high voltage high power applications due to the association of several devices in a series configuration. In this paper, a comparative investigation of both 15 and 17 level cascaded h-bridge multi level inverter with cross h-bridge fed permanent magnet synchronous motor are presented by appropriate simulations and mathematical analysis. Comparative analysis includes Inverter output voltage and current, number of switching devices, stator current and speed of PMSM and total harmonic distortion levels. Limitation of several switching devices, which can afford high voltage in the inverter is the major problems raised in this study. The advantage of this analysis is to figure out the appropriate inverter that can be used for real time application by considering the factors via. Harmonic distortion, output voltage, current, number of switching devices etc. Validation of the analysis is processed through matlab/simulink platform.

  • Fifteen level cross H bridge multilevel inverter fed PMSM
    B. Yogeswara Reddy*, , J. Srinivas Rao, Dr. T. Suresh Kumar, Nagarjuna, , , and
    Blue Eyes Intelligence Engineering and Sciences Engineering and Sciences Publication - BEIESP
    Modeling and simulation of fifteen level cross H bridge multilevel(ML) inverter fed three-phase PMSM presented in this paper. In order to overcome the setbacks of an inverter via switching losses and harmonic disturbance, Cross H bridge MLI topology is developed. The number of switches and DC voltages considered in this model are much inferior to other inverter topologies. The topology presented in the paper has better output and lower harmonic distortion (THD). Also, Permanent Magnet Synchronous Motor (PMSM) have significant advantages over other drives. Analysis and Simulations of 5, 9 and 15 level cross H bridge MLI were performed and presented.

  • Novel switching design structure for three phase 21-level multilevel inverter fed BLDC drive application
    Srinivas Rao Janiga, P. Srinivasa Varma, and T. Suresh Kumar
    Institute of Advanced Engineering and Science
    Multilevel Inverters offers eminent solutions to high voltage high power applications due to the association of several devices in a series configuration. This is moderate because of getting superior quality voltage waveform when using multilevel inverters as compared to form two-level inverters. Most of the problems raised in this study are the restriction of many switching devices, which can afford high voltage are preferred in the inverter. Here, a novel multilevel inverter topology with no transformers, less number of switching devices and gate drive circuits are proposed. The proposed inverter topologies can valid more voltage levels with favorable advantages such as less number of switching devices and gate driving circuits and also reduce to humble size, agreeable voltage profile. In this paper multilevel converter fed BLDC drive with different voltage levels and simulation analysis is presented. The validity of the proposed three-phase 21-level multilevel inverter fed to BLDC motor drive scheme is verified through Matlab/Simulink Platform.

  • Sensorless speed control of Brushless DC Motor using fuzzy controller
    J. Srinivas Rao, G. Ravi Kumar, and O. Chandra Sekhar
    IEEE
    This paper proposes a fuzzy controlled integrated speed - Sensorless approach for the speed control of Brushless DC Motor (BLDCM). This speed sensorless approach employs a load observer to estimate the disturbed load torque, and thus develops a speed sensorless algorithm. For the load observer, the inputs are mechanical rotor inertia constant and the friction coefficient, which are estimated using the recursive least-square rule. Thus this approach is insensitive to motor parameter variations and integrated drift problem. The proposed algorithm is simple when compared to extended Kalman filter in estimating the speed. A comparison is made among fuzzy controller, modified model reference adaptive control and PI controller. It is found that the fuzzy controller has superior performance over other two controllers. The proposed scheme is simulated using MATLAB/Simulink.

RECENT SCHOLAR PUBLICATIONS

  • 49-Level Cross Switched Cascade Multilevel Inverter Fed Induction Motor Drive
    JS Rao, SK Tummala
    International Journal of Integrated Engineering 16 (2), 82-92 2024

  • Comparison of Control Techniques & Modeling of 15-level cross H Bridge Multilevel Inverter
    SK Tummala, S Shaik, DS Rao, IH Al-Kharsan, D Kumar
    E3S Web of Conferences 391, 01174 2023

  • Comparative Exploration of 19-level and 21-level Cascaded H-Bridge MLI with Cross H-Bridge MLI
    TS Kumar, HM Al-Jawahry, M Saini
    E3S Web of Conferences 391, 01172 2023

  • Bibliography analysis of Multilevel Inverters (2021-2022)
    SR Janiga, SK Tummala, IH Al-Kharsan, R Faizan
    E3S Web of Conferences 391, 01173 2023

  • Single stage switching operation of 9-level cascaded H-bridge multilevel inverter
    JS Rao, SK Tummala, GC Babu
    2022 IEEE 2nd International Conference on Sustainable Energy and Future 2022

  • Comparative analysis of PWM techniques for 15-level cross-connected H bridge inverter
    JS Rao, SK Tummala, NR Kuthuri
    Nanotechnology for environmental engineering 7 (2), 393-403 2022

  • 7-Level Semi Cross Switched Multilevel Inverter Fed Induction Motor Drive
    SR Janiga, SK Tummala
    E3S Web of Conferences 184, 01075 2020

  • Comparative investigation of 15 Level and 17 level cascaded h-bridge MLI with cross h-bridge MLI fed permanent magnet synchronous motor
    JS Rao, SK Tummala, NR Kuthuri
    Indonesian Journal of Electrical Engineering and Computer Science 21 (2 2020

  • Speed control of an induction motor fed by an inverter using dSPACE controller
    S Janiga, SN Syed, SK Tummala, SV Pinni
    E3S Web of Conferences 87, 01002 2019

  • Fifteen levels cross H bridge multilevel inverter fed PMSM
    BY Reddy, JS Rao, SK Tummala, A Nagarjuna
    International Journal of Innovative Technology and Exploring Engineering, 8 2019

  • Novel switching design structure for three phase 21-level multilevel inverter fed BLDC drive application
    JS Rao, PS Varma, TS Kumar
    International Journal of Power Electronics and Drive System (IJPEDS) 9 (3 2018

  • Sensorless speed control of Brushless DC Motor using fuzzy controller
    JS Rao, GR Kumar, OC Sekhar
    2016 International Conference on Electrical, Electronics, and Optimization 2016

  • Simulation of sensorless speed control of induction motor using APFO technique
    T Raghu, JS Rao, SC Sekhar
    International Journal of Computer and Electrical Engineering 4 (4), 440 2012

  • SEPIC Converter based-Drive for Unipolar BLDC Motor
    T Raghu, SC Sekhar, JS Rao
    International Journal of Electrical and Computer Engineering (IJECE) 2 (2 2012

  • A Novel Three Phase Multi-String Multilevel Inverter Topology Applied to Induction Machine Drive
    R Ravi, JS Rao

  • Power Quality Improvement Features for a distributed generation system using 3 LEG-3 Wire Grid Interface Inverter
    K Shivashanker, JS Rao, SC Shekar

MOST CITED SCHOLAR PUBLICATIONS

  • Comparative investigation of 15 Level and 17 level cascaded h-bridge MLI with cross h-bridge MLI fed permanent magnet synchronous motor
    JS Rao, SK Tummala, NR Kuthuri
    Indonesian Journal of Electrical Engineering and Computer Science 21 (2 2020
    Citations: 25

  • SEPIC Converter based-Drive for Unipolar BLDC Motor
    T Raghu, SC Sekhar, JS Rao
    International Journal of Electrical and Computer Engineering (IJECE) 2 (2 2012
    Citations: 19

  • Fifteen levels cross H bridge multilevel inverter fed PMSM
    BY Reddy, JS Rao, SK Tummala, A Nagarjuna
    International Journal of Innovative Technology and Exploring Engineering, 8 2019
    Citations: 16

  • Novel switching design structure for three phase 21-level multilevel inverter fed BLDC drive application
    JS Rao, PS Varma, TS Kumar
    International Journal of Power Electronics and Drive System (IJPEDS) 9 (3 2018
    Citations: 16

  • Simulation of sensorless speed control of induction motor using APFO technique
    T Raghu, JS Rao, SC Sekhar
    International Journal of Computer and Electrical Engineering 4 (4), 440 2012
    Citations: 12

  • Sensorless speed control of Brushless DC Motor using fuzzy controller
    JS Rao, GR Kumar, OC Sekhar
    2016 International Conference on Electrical, Electronics, and Optimization 2016
    Citations: 8

  • Comparative Exploration of 19-level and 21-level Cascaded H-Bridge MLI with Cross H-Bridge MLI
    TS Kumar, HM Al-Jawahry, M Saini
    E3S Web of Conferences 391, 01172 2023
    Citations: 5

  • Speed control of an induction motor fed by an inverter using dSPACE controller
    S Janiga, SN Syed, SK Tummala, SV Pinni
    E3S Web of Conferences 87, 01002 2019
    Citations: 4

  • Comparative analysis of PWM techniques for 15-level cross-connected H bridge inverter
    JS Rao, SK Tummala, NR Kuthuri
    Nanotechnology for environmental engineering 7 (2), 393-403 2022
    Citations: 2

  • Comparison of Control Techniques & Modeling of 15-level cross H Bridge Multilevel Inverter
    SK Tummala, S Shaik, DS Rao, IH Al-Kharsan, D Kumar
    E3S Web of Conferences 391, 01174 2023
    Citations: 1

  • 7-Level Semi Cross Switched Multilevel Inverter Fed Induction Motor Drive
    SR Janiga, SK Tummala
    E3S Web of Conferences 184, 01075 2020
    Citations: 1