Sajeeb Saha, M.I. Saleem, Tushar Kanti Roy
Monir Morshed, Md. Imran Hassan, Tushar Kanti Roy, Muhammad Shahin Uddin et al.
In this paper, a highly sensitive gas sensor based on the microstructure core and cladding photonic crystal fiber (PCF) is presented over the wavelength range from 1.3 to 2.2 μm, which is advantageous for sensor fabrication. The guiding properties of the proposed structure are dependent o...
Naruttam Kumar Roy, Sayemul Islam, Amit Kumer Podder, Tushar Kanti Roy et al.
By replacing conventional generation units with renewable energy sources (RESs), the power system gains an alternate source of future power generation and a better environmental platform. RESs, on the other hand, are unable to provide the required power demand due to poor inertia responses and low-f...
Md. Rashidul Islam, Jakir Hasan, Md. Rezaur Rahman Shipon, Mohammad Ashraf Hossain Sadi et al.
Doubly fed induction generators (DFIGs) are vulnerable to grid related electrical faults. Standards require DFIGs to be disconnected from the grid unless augmented with a fault ride through (FRT) capability. A fault current limiter (FCL) can enhance the overall stability of wind farms and allow them...
Tushar Kanti Roy, M. A. H. Pramanik, Subarto Kumar Ghosh
Conventional power generation is undergoing a dramatic upheaval, and renewable-based microgrids are playing an important part in this energy sector revolution. An integral terminal sliding mode controller based on a double-power reaching law control strategy for solar photovoltaic and battery-based ...
Subarto Kumar Ghosh, Tushar Kanti Roy, M. A. H. Pramanik, M. A. Mahmud
Abstract In this paper, a nonlinear decentralized double‐integral sliding mode controller (DI‐SMC) is designed along with an energy management system (EMS) for the DC microgrid (DCMG). This DCMG includes having a hybrid energy storage system (HESS) that incorporates a battery energy storage system (...
Subarto Kumar Ghosh, Tushar Kanti Roy, M. A. H. Pramanik, Ajay Krishno Sarkar et al.
In this work, a control strategy is developed for different components in DC microgrids where set points for all controllers are determined from an energy management system (EMS). The proposed EMS-based control scheme is developed for DC microgrids with solar photovoltaic (PV) systems as the primary...
M.I. Saleem, Sajeeb Saha, Tushar Kanti Roy, Subarto Kumar Ghosh
Abstract The integration of the renewable energy sources (RESs) into the power grid, drives a significant transformation in the conventional power generation landscape. This transition from traditional synchronous generators to inverter based RESs introduces unique challenges in maintaining the grid...
Tushar Kanti Roy, Subarto Kumar Ghosh, Sajeeb Saha
Abstract In this paper, a Backstepping Global Integral Terminal Sliding Mode Controller (BGITSMC) with the view to enhancing the dynamic stability of a hybrid AC/DC microgrid has been presented. The proposed approach controls the switching signals of the inverter, interlinking the DC-bus with the AC...
Tushar Kanti Roy, Subarto Kumar Ghosh, Sajeeb Saha
In this paper, a terminal sliding mode backstepping controller (TSMBC) has been proposed for various components of a hybrid AC/DC microgrid (HADMG) to enhance its dynamic stability. The proposed control technique is employed to generate switching control signals for converters, which serve as the pr...
Tushar Kanti Roy, M. A. Mahmud
Abstract A fault current compensation technique is proposed in this paper for resonant grounded power distribution systems in bushfire prone areas. Arc suppression devices with residual current compensation inverters are used to compensate fault currents due to single line‐to‐ground faults in order ...
Tushar Kanti Roy, M. A. Mahmud, Subarto Kumar Ghosh, M. A. H. Pramanik et al.
This paper presents an adaptive sliding model controller for rapid earth fault current limiters (REFCLs) in resonant grounded power distribution networks to mitigate the impacts of powerline bushfires by compensating the fault current along with the faulty phase voltage. The powerline bushfire mitig...
Farzana Akter, Tushar Kanti Roy, Md. Shofiqul Islam, Abdulhameed F. Alkhateeb et al.
This paper proposes a robust nonlinear controller for a proton exchange membrane fuel cell coupled with a DC-DC boost converter. The key feature is to maintain the desired reference output voltage despite significant disturbances while improving transient stability. In order to do this, a nonlinear ...
Tushar Kanti Roy, M. A. Mahmud, A. B. M. Nasiruzzaman, M. A. Barik et al.
Abstract This paper presents an approach to design a non‐singular fast terminal sliding model controller for residual current compensation inverters in compensated distribution networks to compensate the fault current due to most commonly occurred single line‐to‐ground faults. The main control objec...
Md. Rashidul Islam, Md. Najmul Huda, Jakir Hasan, Mohammad Ashraf Hossain Sadi et al.
High penetration of Doubly Fed Induction Generator (DFIG) into existing power grid can attribute complex issues as they are very sensitive to the grid faults. In addition, Fault Ride Through (FRT) is one of the main requirements of the grid code for integrating Wind Farms (WFs) into the power grid. ...
Zubaer Alam, Tushar Kanti Roy, Subarto Kumar Ghosh, M. A. Mahmud
This article proposes a new composite scheme to design a robust voltage controller for dc–dc buck converters in which the composite structure combines the recursive backstepping approach with an integral terminal sliding mode controller (ITSMC). In this work, the proposed ITSMC is designed to overco...
Tushar Kanti Roy, Liton Chandra Paul, M. I. Sarkar, M. F. Pervej et al.
A nonlinear adaptive controller for controlling the desired velocity of DC motors driven by DC-DC buck converters is proposed in this paper. The proposed controller is designed recursively based on the control Lyapunov function (CLF) to assure the desired control performance under varying the load t...
Tushar Kanti Roy, Monir Morshed
Digital filter plays an important role in the advanced era of communication system. Digital filters basically provide high attenuation to the unwanted ones and offer very low or ideally zero attenuation to desired signal components when its impulse response is adjusted as per requirement. But the de...
Tushar Kanti Roy, Monir Morshed, F. K. Tumpa, M. F. Pervej
A robust adaptive backstepping technique is proposed in this paper to solve the speed-tracking problem of a series DC motor for improving transient response. The parameters of DC motor are considered as unknown and the external disturbances are incorporated into the dynamical model. The proposed con...
Tushar Kanti Roy, M. A. Mahmud, M. A. Barik, A. B. M. Nasiruzzaman et al.
This article presents a nonlinear backstepping control scheme for rapid earth fault current limiters (REFCLs) in resonant grounded power distribution systems to mitigate the severity of powerline bushfires. The main feature of the proposed control scheme is that it quickly eliminates both active and...