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Author

Partha Sarathi Subudhi

Other affiliations: Aalborg University
Bio: Partha Sarathi Subudhi is an academic researcher from VIT University. The author has contributed to research in topics: Photovoltaic system & Total harmonic distortion. The author has an hindex of 4, co-authored 11 publications receiving 40 citations. Previous affiliations of Partha Sarathi Subudhi include Aalborg University.

Papers
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Journal ArticleDOI
TL;DR: Compensation circuit topologies, types of core for magnetic coupled inductors, different converters and controllers used for wireless power transfer (WPT) system, design aspects of an static wireless EV battery charging system along with its equivalent circuit analysis is presented.
Abstract: Abstract Electric vehicles (EV) are found to be a good alternative for the conventional internal combustion (IC) engine vehicles in transportation sector due to its various advantages. Now-a-days, wireless charging of EV battery is preferred among the various methods used for charging EV battery. In this paper, extensive review is carried out on various methods used for wireless charging of an EV battery. Different techniques used for transferring power in wireless mode to charge the EV battery are static EV charging technique and dynamic EV charging technique. Static wireless EV battery charging technique adopts inductive and capacitive method for transferring power whereas, dynamic wireless EV battery charging technique adopts only inductive method for transferring power. These techniques are discussed thoroughly in this paper and broad review is carried out with a focus on the compensation circuit topologies, types of core for magnetic coupled inductors, different converters and controllers used for wireless power transfer (WPT) system. Also, design aspects of an static wireless EV battery charging system along with its equivalent circuit analysis is presented in this paper. Challenges and future development in wireless charging of EV battery is also explained in this paper.

30 citations

Journal Article
TL;DR: In the proposed system, the hybrid converter is designed by replacing single switch of conventional boost converter by voltage source inverter (VSI), it has higher reliability in terms of power density and has inherent shoot-through protection during inverter operation.
Abstract: Power converters used in the existing smart home electric vehicle (EV) battery charging systems are capable of feeding only dc power. Whereas, this paper proposes the usage of hybrid converters in such systems as they are used for supplying power to both ac and dc loads simultaneously. Among various hybrid converter topologies, boost derived hybrid converter (BDHC) and quadratic boost derived hybrid converter (QBDHC) are analyzed in this paper. A photovoltaic (PV) array fed smart home system using BDHC and QBDHC is proposed to provide both dc power and ac power simultaneously and their performances were compared in this paper. The interfacing of multiple outputs is accomplished using time division multiplexing of power generated from PV array. In the proposed system, the hybrid converter is designed by replacing single switch of conventional boost converter by voltage source inverter (VSI). It has higher reliability in terms of power density and has inherent shoot-through protection during inverter operation. It is best suited for home applications which require support for both ac and dc loads. The system is designed, modeled and simulated using PSIM software and a laboratory prototype is developed and tested. Resemblance between the simulated and experimental results validates the efficaciousness of the proposed system.

16 citations

Journal ArticleDOI
TL;DR: Magnesium doped nickel ferrite spinel nanostructured were prepared using a microwave combustion method and structural characterization by XRD analyses confirmed that undoped NiFe2O4 showed a single phase cubic spinel structure as discussed by the authors .

9 citations

Proceedings ArticleDOI
22 Mar 2019
TL;DR: The proposed NLM scheme is found to facilitate a reduction in the total harmonic distortion (THD) at the ac output of the inverter to help the upcoming researchers for designing efficient MLI system.
Abstract: This paper proposes a nearest level modulation (NLM) scheme for a Cross-Connected Sources (CCS) based MLI topology. The proposed modulation scheme is found to facilitate a reduction in the total harmonic distortion (THD) at the ac output of the inverter. The modulation scheme employs low switching frequency to operate the MLI. The paper presents an explanatory description of the NLM scheme in order to help the upcoming researchers for designing efficient MLI system. Simulation has been implemented using the MATLAB/Simulink 2015b software package. The simulation results indicate a significant reduction in the voltage THD and current THD. Improvement in the other output parameters of the inverter such as rms voltage, rms current and output power is also seen.

7 citations


Cited by
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01 Jan 1992
TL;DR: In this paper, a multilevel commutation cell is introduced for high-voltage power conversion, which can be applied to either choppers or voltage-source inverters and generalized to any number of switches.
Abstract: The authors discuss high-voltage power conversion. Conventional series connection and three-level voltage source inverter techniques are reviewed and compared. A novel versatile multilevel commutation cell is introduced: it is shown that this topology is safer and more simple to control, and delivers purer output waveforms. The authors show how this technique can be applied to either choppers or voltage-source inverters and generalized to any number of switches.<>

1,202 citations

Journal ArticleDOI
TL;DR: To prove the superiority of the proposed optimization method in terms of accuracy and computation time, it is compared to two other optimization methods, namely original seagull optimization algorithm (SOA) and modified farmland fertility algorithm (MFFA), which are used in similar applications.

46 citations

Journal ArticleDOI
TL;DR: Simulation results prove that the proposed controllers provide reliable support in terms of frequency regulation to an industrial microgrid during contingencies and depict that by adding more electric vehicles in the fleet during the vehicle-to-grid mode, the frequency of an industrialmicrogrid can be improved to even better levels.
Abstract: After nearly a century with internal combustion engines dominating the transportation sector, it now appears that electric vehicles (EVs) are on the brink of enjoying rapid development due to numerous useful features they possess, such as less operational cost and reduced carbon emissions. EVs can act as load as well as source, by utilizing the technique known as Vehicle-to-Grid (or Grid-to-Vehicle technique if EVs are used as a load). This technique adds key features to an industrial microgrid in the form of primary frequency control and congestion management. In this paper, two controllers (grid regulation and charger controller) are proposed by considering different charging profiles, state of charge of electric vehicle batteries, and a varying number of electric vehicles in an electric vehicle fleet. These controllers provide bidirectional power flow, which can provide primary frequency control during different contingencies that an industrial microgrid may face during a 24-hour period. Simulation results prove that the proposed controllers provide reliable support in terms of frequency regulation to an industrial microgrid during contingencies. Furthermore, simulation results also depict that by adding more electric vehicles in the fleet during the vehicle-to-grid mode, the frequency of an industrial microgrid can be improved to even better levels. Different case studies in this article constitute an industrial microgrid with varied distributed energy resources (i.e. solar and wind farm), electric vehicles fleet, industrial and residential load along with diesel generator. These test cases are simulated and results are analyzed by using MATLAB/SIMULINK.

36 citations

Journal ArticleDOI
TL;DR: A new topology with a lower voltage rating component is proposed to improve the performance by remedying the mentioned disadvantages and the overall costs and complexity are greatly reduced, especially for higher voltage levels.
Abstract: For the applications related to the medium/high-power/voltage, Multilevel inverters (MLI) are widely accepted and commercially used. The performance of MLI compare to the conventional two-level inverters is significantly superior due to the insignificant amount of harmonic distortion, lower filter size, requirement of low voltage rating devices, lower electromagnetic interference, etc. However, there are a few disadvantages such as an increased number of components, a complex modulation and control strategy, and issues related to the voltage balancing of capacitors. The present paper proposes a new topology with a lower voltage rating component to improve the performance by remedying the mentioned disadvantages. Compared with existing inverter topologies, (especially higher levels), this topology requires fewer components, fewer dc sources, and gate drives. Further, voltage stress is also low. The overall costs and complexity are therefore greatly reduced, especially for higher voltage levels. The proposed topology has been compared with other similar topologies and the comparison proves the better structure of the proposed topology. To show the working of the proposed topology, a prototype has been developed and tested for a different operating condition with two different modulation techniques. All the results show the adequate performance of the inverter topology at the different real-time environment.

35 citations

Journal ArticleDOI
TL;DR: Compensation circuit topologies, types of core for magnetic coupled inductors, different converters and controllers used for wireless power transfer (WPT) system, design aspects of an static wireless EV battery charging system along with its equivalent circuit analysis is presented.
Abstract: Abstract Electric vehicles (EV) are found to be a good alternative for the conventional internal combustion (IC) engine vehicles in transportation sector due to its various advantages. Now-a-days, wireless charging of EV battery is preferred among the various methods used for charging EV battery. In this paper, extensive review is carried out on various methods used for wireless charging of an EV battery. Different techniques used for transferring power in wireless mode to charge the EV battery are static EV charging technique and dynamic EV charging technique. Static wireless EV battery charging technique adopts inductive and capacitive method for transferring power whereas, dynamic wireless EV battery charging technique adopts only inductive method for transferring power. These techniques are discussed thoroughly in this paper and broad review is carried out with a focus on the compensation circuit topologies, types of core for magnetic coupled inductors, different converters and controllers used for wireless power transfer (WPT) system. Also, design aspects of an static wireless EV battery charging system along with its equivalent circuit analysis is presented in this paper. Challenges and future development in wireless charging of EV battery is also explained in this paper.

30 citations