Suchismita Roy
Verified @yahoo.co.in
Assistant Professor
RESEARCH INTERESTS
Renewable energy
Scopus Publications
- Technoeconomical Analysis of Grid Connected PV System Powered by Battery Implemented in Educational Institute
Suchismita Roy, Pradeep Kumar Sahu, Satyabrata Sahoo, Geetanjali Dei, Subhra Debdas
3rd IEEE International Conference on Industrial Electronics Developments and Applications Icidea 2025, 2025
The increase in energy demand and environmental pollution necessitates the integration of renewable energy sources with the grid. The hike of installation cost of the conventional photovoltaic cells causes to look for better optimized solutions to integrate the PV, energy storage devices and converters with the grid. In this paper the solar PV, energy storage devices are optimized and integrated with grid with reduced NPC (Net Present Cost) and COE (Cost of Energy) in HOMER PRO software to find out the most economically viable solution. Among all the configurations proposed, PV/Grid/Battery system emerges as the most economically viable solution. This system has an NPC of $4.906967 million, a COE of $0.09973, and an overall operating cost of $3.79433 million. The payback period of the above configuration is 7.2 years which is sufficient to recover all the capital cost. - Design and Analysis of Higher Order Sliding Mode Control for Grid Connected Shunt Active Filters with LCL Topology
Sushil Kumar Pati, Pradeep Kumar Sahu, Satyaranjan Jena, Suchismit Roy, Soubhagya Ranjan Prusty
3rd IEEE International Conference on Industrial Electronics Developments and Applications Icidea 2025, 2025 - Analysis of Isolated Bi-Directional CLLC DC-DC Converters for Fast Electric-Vehicle (EV) Battery Charging
Dhirendra Kumar Mallick, Sarat Chandra Swain, Pradeep Kumar Sahu, Satyaranjan Jena, Suchismita Roy, Ritesh Dash
3rd IEEE International Conference on Industrial Electronics Developments and Applications Icidea 2025, 2025
Bidirectional onboard chargers play a vital role in electric vehicles (EVs), contributing to smart grid applications by enabling functions such as peak load management and supporting grid stability through frequency and voltage regulation. However, traditional full-bridge dual-active bridge (FBDAB) resonant converters commonly used in these systems face considerable efficiency losses, particularly during reverse power flow and when operating away from their resonant frequency-a condition often caused by fluctuations in battery voltage. To overcome these challenges, this paper presents a bidirectional battery charger based on a CLLC resonant converter with efficient tracking mechanism. The converter's steady-state behavior is analyzed under both grid-to-vehicle (G2V) charging and vehicle-to-grid (V2G) discharging conditions. By maintaining the switching frequency close to the ideal resonant point, this design successfully lowers circulating currents in the resonant tank and transformer, decrease losses in MOSFETs, and limits the rate of current change in the diodes. Simulations comparing this approach to a FBDAB resonant converter with fixed DC demonstrate the enhanced efficiency and superior performance of the proposed system. - Flower Pollination Algorithm for Power Quality Enhancement in Smart Grids
Satyabrata Sahoo, Sarat Chandra Swain, Subhra Debdas, Suchismita Roy, Geetanjali Dei, Chitralekha Jena
3rd IEEE International Conference on Industrial Electronics Developments and Applications Icidea 2025, 2025
In modern power systems, maintaining power quality has become a critical challenge, especially with the implementation of smart grids. Active Power Filters (APFs) are widely used to address these issues due to their ability to rapidly filter distortions and provide immediate compensation. To manage both voltage supply disturbances and load current variations, the Unified Power Quality Conditioner (UPQC) is commonly employed. The UPQC integrates both shunt and series active power filters in a unified system, utilizing a shared dc link capacitor. Effective regulation of the dc link capacitor voltage is crucial for the optimal performance of the UPQC. A PI controller typically used for this purpose. This study focuses on optimizing the PI controller parameters of the shunt active filter in the UPQC using the Flower Pollination Algorithm (FPA) to enhance power quality. A MATLAB simulation model of a microgrid incorporating the UPQC was developed, and the results have been analyzed and discussed. - Optimizing the Design and Performance of Standalonehybrid Renewable Energy for an Academic Building
Hassaan Akhtar, Pradeep Kumar Sahu, Suchismita Roy
2024 IEEE 4th International Conference on Applied Electromagnetics Signal Processing and Communication Aespc 2024, 2024
The research focuses on developing an optimal standalone Hybrid Renewable Energy System (HRES) for an academic building to efficiently fulfill its energy demands. Various configurations were assessed using criteria like Net Present Cost (NPC), operating cost, and Cost of Energy (COE) to determine the most economically viable and environmentally sustainable solution. Configurations evaluated include PV-DG-Li-ion battery, PV-WT-DG-Li-ion battery, PV-Li-ion battery, WT-DG-Li-ion battery, and a sole DG system. HOMER PRO software was utilized to optimize the design of these hybrid energy systems. The findings indicate that the PV-WT-DG-Li-ion battery configuration emits approximately 30,632 kg/year of CO2, significantly less than the conventional DG systemwhich emits 763,082 kg/year. Consequently, the study concludes that the PV-WT-DG-Li-ion battery configuration represents the most environmentally friendly and economically feasible solution among the considered options. - Power Quality Analysis in Microgrid Using Unified Power Quality Conditioner and Particle Swarm Optimization
Satyabrata Sahoo, Sarat Chandra Swain, Ritesh Dash, Suchismita Roy, Geetanjali Dei
2024 IEEE 1st International Conference on Green Industrial Electronics and Sustainable Technologies Giest 2024, 2024
Power quality challenges have emerged as a significant concern in the implementation of smart grid systems. Active power filters (APFs) are commonly employed to tackle these issues due to their rapid filtering capabilities and ability to provide instantaneous compensation. To address problems related to voltage irregularities and load current disturbances, the Unified Power Quality Conditioner (UPQC) has been introduced within microgrid environments. Maintaining precise control over the DC link capacitor voltage is essential to ensure the UPQC delivers optimal performance. Typically, a PI controller is utilized to maintain and regulate the voltage across the DC link capacitor. The various methods for determining PI control parameters are Ziegler-Nichols Method, Pole Placement Method, Frequency Response Methods, Optimization Techniques, State-Space Methods etc. This study presents the integration of a UPQC equipped with a Particle Swarm Optimization-based PI controller alongside renewable energy sources such as wind and solar photovoltaic systems to improve power quality. A microgrid simulation model incorporating the UPQC is developed using MATLAB 2022A, and the results are thoroughly analyzed and discussed. " - Technoeconomic Analysis of a Hybrid Energy System for an Academic Building
Suchismita Roy, Pradeep Kumar Sahu
Engineering Technology and Applied Science Research, 2023
This work is mainly based on the optimal design of a standalone Hybrid Renewable Energy System (HRES) consisting of PV/diesel/battery systems, implemented in an academic building. Different hybrid system configurations such as PV-diesel generator-battery, diesel generator-battery, and PV-diesel generator are compared based on Net Present Cost (NPC) and Cost Of Energy (COE) to find out the best economically viable and environmentally friendly solution. Li-ion and lead-acid batteries were taken into consideration, and the optimization was done in HOMER PRO software. The PV-DG-Li-ion battery configuration emits approximately 2825387kg/year CO2 whereas the conventional DG system emits 4565074kg/year. It is concluded that the PV-DG-Li-ion battery configuration provides the cleanest and most environment-friendly and techno-economically feasible solution. - Simulation of Three Phase Bidirectional 10kW Charger for Electric Vehicle with G2V/V2G Mode
Adwait Anand Dash, Samita Rani Pani, Suchismita Roy, Banishree Misra
2023 International Conference in Advances in Power Signal and Information Technology Apsit 2023, 2023
Electric vehicles (EV) are the most demanding and need of hour technology based on sustainability and charging infrastructure is the vital part of EV ecosystem. Bidirectional charger supports flow of power in both directions resulting in Grid to Vehicle (G2V) and Vehicle to Grid (V2G) modes of operation which result in maximum utilization of power when in need. Here the simulation study of bidirectional charging system using Simulink/Matlab with rated power of 10kW is proposed. The system uses IGBT based inverter bridge and MOSFET based bidirectional buck boost converter. The front end converter controller block used to maintain 800V dc across dc bus and inverter control and buck boost converter controller block used to control battery charging/discharging current. This model purpose is to charge the EV battery from grid and discharge the EV battery to the grid which is also proof of two way power exchange in EVs. Battery considered for this study is lithium ion with capacity of 300Ah. - Analysis and control strategy of standalone PV system with various reference frames
Suchismita Roy, Pradeep Kumar Sahu, Satyaranjan Jena
Open Engineering, 2022
Renewable energy sources like solar power are the more convenient source of renewable energy. Nowadays, increasing the energy demand may create many disturbances in power system distribution. To overcome the necessity of power demand, all are focusing on generation of more energy from clean technologies with increased development in power distribution systems using the renewable energy sources. This work aims to propose a standalone PV system with an LCL filter, with two cascaded feedback control loops with an appropriate controller for three reference frame. This work concerns the topology for three reference frames such as synchronous, standalone, and natural reference frames with the respective controllers (PI and PR). The topology contains two cascaded feedback control loops such as DC-link voltage control loop (PI) cascaded with the internal current loop (PI and PR). These commonly used controllers are implemented in various well-known reference frames for the PV system and their steady-state performance is also evaluated in terms of total harmonic distortion. Finally, the simulation results from a two-stage 5.5 kW, 440 V (L–L), three-phase standalone PV system are provided to confirm the theoretical analysis and effectiveness of the control schemes. - Feedback Current Control Techniques for a Single-Phase Grid-Connected Photovoltaic System
Suchismita Roy, Pradeep Kumar Sahu, Satyaranjan Jena, Amiya Kumar Naik
2nd Odisha International Conference on Electrical Power Engineering Communication and Computing Technology Odicon 2022, 2022
The modeling and control of 1-Φ grid-tied voltage source inverter is discussed in this paper for solar photovoltaic (PV) applications. The grid-connected inverters are commonly used to inject the current from the PV system to the utility grid. Generally, the grid-connected inverters are operated with the pulse width modulation technique which results harmonics in grid-current. A third-order LCL filter is used to eliminate these harmonics. However, the use of LCL filter leads the high complexity of the overall system and affects its stability. In order to maintain unity power factor and power quality of the grid-current, a proper current controller is highly essentials for a grid-tied PV system. A review on the single-loop grid-current control techniques for the inverter is discussed here by taking current feedback from grid-side inductor and inverter side inductor. Commonly used proportional-integral (PI) controllers are used in both the cases. In this paper, the step-by-step design procedures of the grid-current loop and its comparison in terms of its steady state performance are discussed. The steady state performances of both the controllers are evaluated on the basis of total harmonic distortion (THD). Finally, the best possible current control scheme is suggested by using experimental results. - Current Control Structures for Grid-Connected Photovoltaic System
Suchismita Roy, Pradeep Kumar Sahu, Satyaranjan Jena, Rudranarayana Senapati
Proceedings 2022 IEEE 2nd International Symposium on Sustainable Energy Signal Processing and Cyber Security Isssc 2022, 2022 - Design and Control of Single-Phase Solar PV Inverter with MPPT Algorithm
Raj Laxmi, Pradeep Kumar Sahu, Satyaranjan Jena, Anuj Kumar Achrya, Srinibasa Padhy, Suchismita Roy
IEEE 2nd International Conference on Applied Electromagnetics Signal Processing and Communication Aespc 2021 Proceedings, 2021 - Parameter Estimation for three core Underground Cable
Suman Khandual, Sanhita Mishra, Suchismita Roy, Chitralekha Jena, Anand
2020 National Conference on Emerging Trends on Sustainable Technology and Engineering Applications Ncetstea 2020, 2020 - Modeling and control of DC/AC converters for photovoltaic grid-Tie micro-inverter application
Suchismita Roy, Pradeep Kumar Sahu, Satyaranjan Jena, Anuja Kumar Acharya
Materials Today Proceedings, 2019 - Effect of change in DG position on parameters of a five bus power system during an islanding situation
Manaskant Mishra, P.C. Panda, S.C. Swain, S. Roy
Proceedings of the International Conference on Power Energy Control and Transmission Systems Icpects 2018, 2018 - Effect of length of transmission line on power system parameters during islanding for different load cases
Manaskant Mishra, P. C. Panda, S. C. Swain, S. Roy
Proceedings of the 2nd International Conference on Communication and Electronics Systems Icces 2017, 2017
