Conference Papers

Permanent URI for this collectionhttps://idr.nitk.ac.in/handle/123456789/28506

Browse

Author: search.filters.author.Kishan, D.

Search Results

Now showing 1 - 10 of 26
  • No Thumbnail Available
    Item
    Analysis of Mutual Inductance between Asymmetrical Spiral Circular Coils of WIPTS for EV Battery Charging
    (Institute of Electrical and Electronics Engineers Inc., 2020) Kishan, D.; Vinod, M.
    Wireless Inductive Power Transfer System (WIPTS) for electric vehicle battery charging is an emerging technology. It enables electric power transmission without any physical connection between the transmitter coil (Tx) and receiver coil (Rx) over a certain distance. However, the power transfer capability between the wirelessly coupled inductive coils is greatly affected by mutual inductance (MI) between them. This paper presents a new analytical method based on Neumann's equation for computation of MI between the asymmetrical spiral circular coupled coils. The computed mutual inductances are validated with Finite Element Modeling (ANSYS MAXWELL) simulation results. The relative error between the analytical and FEM simulated results is negligible. © 2020 IEEE.
  • No Thumbnail Available
    Item
    Magnetic Coupling Characteristics of Spiral Square - Circular Coupled Coils for Wireless EV Battery Charging System
    (Institute of Electrical and Electronics Engineers Inc., 2020) Kishan, D.; Vinod, M.; Nagendrappa, N.
    Electric Vehicles (EVs) are gaining continuous interest due to higher efficiency than internal combustion engine vehicles, and environmentally friendly nature. Nowadays, most of the EV uses the conductive charging method to charge the battery. Besides that, wireless inductive charging technology for EV has recently received a great attention because of the advantages such as increased user convenience and safety. In this method of charging mutual inductance between the wireless inductive coils is the crucial factor. Hence, this paper describes the mutual inductance characteristics of the transmitter with spiral square - receiver with circular (i.e., interoperability spiral square and spiral circular of coils) at various vertical distances using FEM simulations. © 2020 IEEE.
  • No Thumbnail Available
    Item
    Design of Spiral Square Inductive Power Pads with Misalignment for Wireless Power Transfer System
    (Institute of Electrical and Electronics Engineers Inc., 2021) Vinod, M.; Kishan, D.; Nagendrappa, H.; Kannan, R.
    Wireless power transfer (WPT) can find the potential applications reaching from power transfer to low power appliances to high power electric vehicle battery charging and industrial systems applications. Inductive power pads are the key components for magnetic induction based WPT systems. Hence, this paper labels the analysis of magnetic coupling characteristics of spiral square inductive pads with various misalignments. In this process the inductive power pads are designed in FEM simulation. The modelling approach is presented to calculate the coupling coefficient, self and mutual inductance of spiral square inductive pads of WPT system and also presented the power and efficiency analysis of the system. © 2021 IEEE.
  • No Thumbnail Available
    Item
    Comparative Analysis of Symmetrical and Asymmetrical Phase Shift Control Strategy for Resonant Wireless Inductive Charging System
    (Institute of Electrical and Electronics Engineers Inc., 2021) Vinod, M.; Kishan, D.; Nagendrappa, H.; Dastagiri Reddy, B.D.
    This paper describes the operation and performance analysis of series/series resonant wireless inductive charging system with symmetrical phase shift (SPS) and asymmetrical phase shift (APS) control strategies. The H-bridge inverter switches of the resonant wireless inductive charging system (RWICS) are designed to operate with zero voltage switching. The comparison of the SPS, APS switching strategies are discussed in regulation of output voltage for different loading conditions and step change in the reference voltages. It is found that the system efficiency is higher with APS control strategy. Also, the variation in pulse-width angle required for controlling the output voltage is small for various loading conditions in APS compared to the SPS. The MATLAB/Simulink Simulation results confirmed that APS control strategy provides superior performance than SPS control for different loading and different output desired conditions. © 2021 IEEE.
  • No Thumbnail Available
    Item
    A Time-Frequency Transform based Fault Detection and Classification Methodology for Transmission Lines
    (Institute of Electrical and Electronics Engineers Inc., 2021) Ghatak, A.; Kishan, D.
    The inevitable events in power systems such as faults should be detected and resolved quickly to maintain system reliability. This paper proposes a Time-Frequency transform (wavelet transform) based fault detection and classification methodology using current signals. The Daubechies wavelet has been used to extract the features of the current signals. The proposed method detects a fault using the first level decomposition coefficients using wavelet transform, while the fault is classified by using the maximum values of the detail coefficients and logical analytical techniques. The proposed methodology is validated on a test model developed in the MATLAB Simulink environment. The performance of the proposed methodology has been verified under different fault configurations for different fault locations, resistances and inception times. The algorithm is also validated for a load change at the time of fault inception. The results show that the proposed methodology is accurate and reliable in fault detection and classification and can help in taking appropriate decisions to enhance the reliability of power system. © 2021 IEEE.
  • No Thumbnail Available
    Item
    Current Source Isolated Bidirectional Series Resonant DC-DC Converter for Solar Power/Fuel Cell and Energy Storage Application
    (IEEE Computer Society, 2021) Bathala, K.; Kishan, D.; Nagendrappa, N.
    This paper presents the performance analysis of a current source isolated bidirectional DC-DC converter (CSIBDC) for PV and Fuel Cell (FC) applications. The proposed CSIBDC converter has been chosen to integrate solar power with energy storage systems. Since the solar power is intermittent in nature and it has no dispatch ability on its own, the proposed converter can enable small voltages available from PV to step up by operating in the boost conversion mode. The current source dual active bridge (DAB) converter topology is a good choice for battery charging and discharging applications due to its bidirectional power transfer capability. To achieve high power density with ZVS transition, the proposed dual active bridge converter is operated with phase shift control technique. In order to evaluate the performance of the proposed DAB converter the simulations are carried out using PSIM software. © 2021 IEEE.
  • No Thumbnail Available
    Item
    A Technological Research on Electric Vehicles Charging Approaches and Optimization Methods
    (Institute of Electrical and Electronics Engineers Inc., 2022) Vani, B.V.; Kishan, D.; Ahmad, M.W.; Hanumanthakari, S.; Reddy, B.N.K.
    In Present day various countries all throughout the world have taken on Electric Vehicles (EVs) to diminish air pollution and fuel consumption. In coming years, Electric Vehicles are bound to become crucial in the transport field. Subsequently, the charging approaches are in the same line. This paper presents an outline of the current and proposed EV charging approaches and optimization methods. Especially the various EV charging methods like battery exchange, conductive charging and wireless charging are presented. Next, some of the EV charging/discharging optimization methods are examined. On the basis of investigation, a few proposals are put forward for future research. © 2022 IEEE.
  • No Thumbnail Available
    Item
    Single-Phase Single Stage High Gain Six Switch Four-Port Converter
    (Institute of Electrical and Electronics Engineers Inc., 2022) Reddy, M.R.; Dastagiri Reddy, B.D.; Prabhakaran, P.; Kishan, D.
    This paper proposes a single-phase single-stage high gain six switch four-port (6S4P) converter with a novel modulation scheme. The four ports are 1) a low voltage DC port 2) a high voltage DC port, 3) AC port1 and 4) AC port2. For effective operation of the proposed converter, novel Rectified Inverse Level-shifted Sinusoidal Pulse Width Modulation (RILSPWM) and Phase-shifted Rectified Level-shifted Sinusoidal Pulse Width Modulation (PRLSPWM) schemes are proposed and employed. The proposed converter along with the modulation scheme achieves high voltage gain for both DC and AC ports, and also the ac ports are operated with different magnitudes and frequencies. Thus, improving the power density and reliability of the proposed converter with reduced cost. The performance of the proposed converter is evaluated in the MATLAB/Simulink environment, and the results are presented. © 2022 IEEE.
  • No Thumbnail Available
    Item
    Composite Control Design for In-Wheel Drive Electric Vehicle with Unknown Disturbances and Input Delay
    (Institute of Electrical and Electronics Engineers Inc., 2022) Chiliveri, V.R.; Kalpana, R.; Kishan, D.
    This paper focuses on lateral motion stability con-trol of an in-wheel drive electric vehicle while accounting for un-known external disturbances and input time delay. A predictive sliding mode control using super twisting techniques is designed to mitigate the consequences of input time delay, tracking inac-curacy, and chattering phenomenon. Further, to degrade the lumped disturbances, a disturbance observer (DOB) is empha-sized to estimate unknown disturbances and facilitate feedfor-ward compensation for control. Then, a composite control structure combining predictive super-twisting sliding mode control (STSMC) and DOB is proposed to realize precise tracking uti-lizing appropriate disturbance estimation. To prove the closed-loop stability, a Lyapunov function-based analysis is performed. Simulation is carried out in MATLAB/Simulink to validate the proposed control, and two critical maneuvers are presented to demonstrate its effectiveness. © 2022 IEEE.
  • No Thumbnail Available
    Item
    Improved Power Quality of Single Phase On-Board Charger with Wide Voltage Conversion Range
    (Institute of Electrical and Electronics Engineers Inc., 2023) Vinusha, B.; Kalpana, R.; Kishan, D.
    For electric vehicle applications, there is a persistent need for on-board chargers that are dependable, effective, compact, and lightweight. In this paper, a non-isolated two-switch buck boost (TSBB) topology is presented for a single-phase on-board charger, which can offer significantly improved performance over single-switch buck-boost converters as SEPIC, CUK, or fly back topologies or other two-switch buck-boost converters. The advantage of this on-board charger is that it can perform high input power quality over a wide output voltage conversion range. This paper presents an analysis of the various modes of the converter and small signal analysis of the converter to design the controller. To validate the effectiveness of the converter simulations results are presented with the help of MATLAB-Simulink. © 2023 IEEE.