Publications
11 journal articles and 5 conference papers on power systems, fault current limiters and renewable energy integration.
Journal articles
- 2024
Transient performance improvement of DFIG‐based wind farm by H‐bridge fault current limiter
Md. Arafat Hossain, Jakir Hasan, Arghya Das Upadhay, Md. Yah-Ya Ul Haque, Md. Rashidul Islam
Applied Research, Volume 3, Issue 3
Despite the unique advantages a doubly fed induction generator (DFIG) offers to the grid-integrated renewable energy systems, they have a limitation of being susceptible to grid fault as their stator windings are directly connected to the grid. The fault current limiters (FCLs) provide a sustainable solution by enhancing the fault ride-through capability and thus it improve the transient performance of a DFIG. In this work, a multi-inductor-based H-bridge fault current limiter (HBFCL) is proposed to augment the transient performance of a DFIG. The operational efficacy of the HBFCL is evaluated through the administration of both symmetrical and asymmetrical fault scenarios. The effectiveness of the HBFCL is further investigated by comparing the performance of the HBFCL with that of the bridge-type series dynamic braking resistor (BSDBR). Both the graphical and numerical interpretations of the simulation result assert that the HBFCL improves the transient performance of a DFIG-based wind farm and outweighs the performance of the BSDBR in all aspects.
- 2022
Double integral sliding mode controller based bridge-type flux-coupling non-superconducting fault current limiter to protect DFIG-based multi-machine power system under transient-state
Md. Rashidul Islam, Md Arafat Hossain, Jakir Hasan, Tushar Kanti Roy, Mohammad Ashraf Hossain Sadi
International Journal of Electrical Power & Energy Systems, Vol. 142, Part A
This paper proposes a double-integral sliding mode controller (DISMC) based bridge-type flux-coupling non-superconducting fault current limiter (BFC-NSFCL) to enhance the fault ride-through (FRT) capability of a DFIG-based wind farm connected to a multi-machine power system. At first, a complete modeling of the BFC-NSFCL is derived to understand its behavior during the normal and fault period more accurately. Then, the DISMC is designed based on that dynamic model obeying the double-integral theory, along with the single-integral sliding mode controller (SISMC) and non-integral sliding mode controller (NISMC) for comparison purpose. Finally, the performance of the DISMC in controlling the BFC-NSFCL has been analyzed and verified by comparing with that of the SISMC and the NISMC. The DISMC removes the chattering problems induced by the traditional SMCs and improves the transient performance by reducing the overshoot and steady-state error by implementing double-integral action. All the graphical and mathematical analyzes favor the DISMC based BFC-NSFCL under symmetrical and unsymmetrical fault (both temporary and permanent) scenarios.
- 2022
Protecting DFIG‐based multi‐machine power system under transient‐state by nonlinear adaptive backstepping controller‐based capacitive BFCL
Md Arafat Hossain, Md Rashidul Islam, Md Yah‐Ya Ul Haque, Jakir Hasan, Tushar Kanti Roy, Mohammad Ashraf Hossain Sadi
IET Generation, Transmission & Distribution, Volume 16, Issue 22
The invention of doubly-fed induction generator (DFIG) brings the wind energy one step ahead as renewable power generation. But the performance of the grid-connected DFIGs are greatly affected by grid disturbances as their stator windings are interfaced to the grid directly. Different fault current limiters are capable of improving fault ride through capability during short circuit faults. Nonlinear controller based fault current limiters (FCLs) are superior to deal with the nonlinearity of the power systems. This paper proposes a nonlinear adaptive backstepping controller (ABSC) based capacitive bridge-type FCL (CBFCL) to enhance the fault ride through capability of a DFIG-based wind farm connected to a multi-machine power system. At first, a complete modelling of the CBFCL is derived to understand its behaviour during the normal and fault period more accurately. Then, the ABSC is designed based on that dynamic model, along with the backstepping controller (BSC) and sliding mode controller (SMC) for comparison purpose. Finally, the performance of the ABSC to control the CBFCL has been analysed and verified by comparing with that of the BSC and the sliding mode controller. All the graphical and mathematical analyses favour the ABSC based CBFCL under symmetrical and asymmetrical fault (both temporary and permanent) scenarios.
- 2021
A capacitive bridge-type superconducting fault current limiter to improve the transient performance of DFIG/PV/SG-based hybrid power system
Jakir Hasan, Md. Rashidul Islam, Md. Rabiul Islam, Abbas Z. Kouzani, M. A. Parvez Mahmud
IEEE Transactions on Applied Superconductivity, Vol. 31, No. 8
This paper proposes a capacitive bridge-type superconducting fault current limiter (CB-SFCL) to address the most concerning issue with the grid connected hybrid power system by improving the transient performance. The hybrid system incorporates a doubly fed induction generator (DFIG) based wind farm, a solar photovoltaic (PV) system and a synchronous generator (SG) based power system. The CB-SFCL incorporates a high temperature superconductor (HTS) along with a power capacitor to provide adequate reactive power support before and after the fault. The capacitor is kept inactive during normal operation by a control circuit to ensure seamless operation. During fault, the capacitor gets connected in series with the HTS and suppress the fault current. The performance of the CB-SFCL is investigated by proper graphical and mathematical analyses and conclusions are obtained by comparing them with that of the conventional bridge-type superconducting fault current limiter (BSFCL) and the capacitive bridge-type fault current limiter (CBFCL). The analyses support the theoretical superiority of the CB-SFCL over the BSFCL and the CBFCL by a satisfying margin.
- 2021
Low-voltage ride through capability augmentation of DFIG-based wind farms using series-parallel resonance-type fault current limiter
Md. Yah-Ya Ul Haque, Jakir Hasan, Md. Rashidul Islam, Md. Rabiul Islam
Wind (MDPI), Vol. 1, No. 1
The introduction of doubly fed induction generators (DFIGs) has facilitated the utilization of wind energy to a great extent and constituted distributed generation (DG) systems in remote places. Therefore, long transmission lines are required to interconnect with the utility grid and, consequently, different short-circuit faults interrupt this transmission. Use of different fault current limiters (FCLs) minimizes the effect of faults and allows normal operation with minimum interruption in power flow. In this study, a series-parallel resonance-type fault current limiter (SPRFCL) is presented for enhancing the low-voltage ride-through (LVRT) capability of DFIG-based wind farms. The SPRFCL preserves the nominal voltage and power quality within the permissible limit during normal operation and during disturbances irrespective of the type of fault. The effectiveness of the proposed SPRFCL is validated by simulating both symmetrical and asymmetrical faults. Alongside the SPRFCL, two state-of-the-art FCLs—the parallel resonance-type fault current limiter (PRFCL) and the capacitive bridge-type fault current limiter (CBFCL)—are considered to investigate and compare the relative performances. Several graphical and numerical studies assure the efficacy of the proposed SPRFCL in wind farm application in multiple aspect. Moreover, the stunning total harmonic distortion (THD) values with the proposed technique signifies the excellency over its competitors. Additionally, the sub-synchronous resonance (SSR) analysis confirms the supremacy of SPRFCL for series compensated lines.
- 2021
Nonlinear backstepping controller design for bridge-type fault current limiter to enhance the transient performance of hybrid power systems
Md. Rashidul Islam, Arghya Das Upadhay, Tushar Kanti Roy, Jakir Hasan, M. A. Parvez Mahmud
International Transactions on Electrical Energy Systems (Wiley), Vol. 31, No. 11
A nonlinear backstepping control scheme is proposed in this work for a bridge type fault current limiter (BFCL) in a hybrid power system for enhancing its transient performance. The hybrid power system has the provision to supply AC loads connected to the main grid and local DC loads. The DC-side of that system is coupled with AC-side through a bidirectional converter having power exchange capability between both AC- and DC-sides. The AC-side is coupled with the main grid through transmission lines and the BFCL is placed on the transmission line, where the faults are considered, as the transmission line is the most vulnerable point. The dynamical model of the BFCL is used to design the nonlinear backstepping controller (BSC) where the control input is derived in a way that it can ensure as well as enhance the transient performance of that hybrid power system. Lyapunov stability theory is used to theoretically demonstrate the stability of the BFCL using the proposed BSC. Theoretical findings guarantee the system stability, and simulation studies clearly indicate the superiority of the proposed BSC based BFCL (BSC-BFCL), both graphically and numerically over an existing nonlinear sliding mode controller (SMC) for the BFCL (SMC-BFCL), for symmetrical and unsymmetrical fault scenarios (both temporary and permanent type). In addition, percentage overshoot and settling time analyses suggest the lesser deviation of system responses during transients from their ideal values and quicker stability, respectively. Moreover, the astonishing total harmonic distortion (THD) values with the proposed technique signify the excellency over its competitors in every aspect.
- 2021
Transient performance augmentation of DFIG based wind farms by nonlinear control of flux-coupling-type superconducting fault current limiter
Md. Rashidul Islam, Jakir Hasan, Md. Rabiul Islam, Abbas Z. Kouzani, M. A. Parvez Mahmud
IEEE Transactions on Applied Superconductivity, Vol. 31, No. 8
Any fault related to grid is a matter of great concern for doubly fed induction generator (DFIG) based power system as DFIG's stator windings are connected to the grid directly. To augment the transient performance of the DFIGs, superconducting fault current limiter (SFCL) is a certified device. To boost the performance of a flux-coupling-type SFCL (FC-SFCL) by ensuing the adaptive use of fault current limiting impedance based on fault severity, rather involving the full impedance unnecessarily, a nonlinear controller (NC) for FC-SFCL (NC-FC-SFCL) is presented in this paper. Reason behind choosing a straightforward NC for this work is to have simple implementation capability with the full flavor of a nonlinear controller. Effectiveness of the NC-FC-SFCL is compared with conventionally controlled FC-SFCL for various fault scenarios. Simulation results suggest that, NC-FC-SFCL can improve the overall fault ride through (FRT) capability which is verified both graphically and numerically. Additionally, this effective use of the fault current limiting impedance guarantees better transient sub-synchronous resonance (SSR) performance, and exhibits better total harmonic distortion responses.
- 2021
Negative imaginary theory-based proportional resonant controller for voltage control of three-phase islanded microgrid
Md. Yah-Ya Ul Haque, Jakir Hasan, Md. Rashidul Islam, Md. Rafiqul Islam Sheikh
Journal of Control, Automation and Electrical Systems (Springer), Vol. 32, No. 1
This paper demonstrates the design of robust proportional resonant (PR) controller using negative imaginary (NI) theorem for voltage control of three-phase islanded microgrid (MG) application. While operating MG as the islanded mode, different types of random and unknown load dynamics affect the MG. These loads eventually deteriorate the proper execution of MG-inducing disturbances in voltage and current. Therefore, to improve the performance of the three-phase MG, a simple, second-order controller is designed with the combination of NI theory and PR (NI–PR) controller. This controller is capable of providing higher level of damping as well as excellent stability properties. The stability and effectiveness of this controller are examined through imposing uncertainties, in terms of several load dynamics as well as different fault conditions. The comparison with respect to linear quadratic regulator and model predictive controller also ascertains the robustness of the designed controller. The NI–PR controller and the system are simulated in MATLAB/SIMULINK platform.
- 2020
Performance improvement of DFIG-based wind farms using NARMA-L2 controlled bridge-type flux coupling non-superconducting fault current limiter
Md. Rashidul Islam, Jakir Hasan, Md. Mahmudul Hasan, Md. Najmul Huda, Mohammad Ashraf Hossain Sadi, Ahmed AbuHussein
IET Generation, Transmission & Distribution, Vol. 14, No. 26
Doubly-fed induction generators (DFIGs) have drawn prominent interest in the field of wind power generation, but they are vulnerable to grid faults. Grid codes mandate DFIGs to employ a sort of fault ride-through (FRT) technique during faults. Fault current limiters (FCLs) always help to augment the FRT capability of DFIGs and a non-linear controller boosts their performances. In this study, a non-linear auto-regressive moving average-L2 (NARMA-L2) controller-based bridge-type flux coupling non-superconducting FCL (BFC-NSFCL) is proposed to enhance the FRT capability of the wind farm. The authors analysed the performance of the proposed NARMA-L2-based BFC-NSFCL (NL2-BFC-NSFCL) against that of the conventionally used series dynamic braking resistor (SDBR), bridge-type FCL (BFCL), and proportional–integral (PI) controller-based BFC-NSFCL (PI-BFC-NSFCL). They tested the performance of the NL2-BFC-NSFCL through multiple temporary and permanent fault scenarios and carried out the mathematical and graphical analysis in MATLAB/Simulink platform. They found that the proposed NL2-BFC-NSFCL's performance surpasses the performances of the SDBR, the BFCL, and the PI-BFC-NSFCL. Moreover, the NL2-BFC-NSFCL has faster system recovery capability after the occurrence of any fault than other competitors.
- 2020
Neuro fuzzy logic controlled parallel resonance type fault current limiter to improve the fault ride through capability of DFIG based wind farm
Md. Rashidul Islam, Jakir Hasan, Md. Rezaur Rahman Shipon, Mohammad Ashraf Hossain Sadi, Ahmed Abuhussein, Tushar Kanti Roy
IEEE Access, Vol. 8
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 to maintain grid-code requirements. In this paper, a neuro fuzzy logic controlled parallel resonance type fault current limiter (NFLC-PRFCL) is proposed to enhance the FRT capability of the DFIG based wind farm. Theoretical and graphical analysis of the proposed method are carried out by MATLAB/Simulink software. The performance of the NFLC-PRFCL is compared with other documented FCL devices, e.g., the bridge type fault current limiter (BFCL) and the series dynamic braking resistor (SDBR). The performance of the NFLC-PRFCL is also compared with that of the existing fuzzy logic controlled parallel resonance fault current limiter (FLC-PRFCL). From the simulation results, it is found that the NFLC-PRFCL outperforms its competitors and enables the DFIG to maintain a near-seamless performance during various fault events.
- 2020
Fault ride through capability improvement of DFIG based wind farm using nonlinear controller based bridge-type flux coupling non-superconducting fault current limiter
Md. Rashidul Islam, Md. Najmul Huda, Jakir Hasan, Mohammad Ashraf Hossain Sadi, Ahmed AbuHussein, Tushar Kanti Roy, M. A. Parvez Mahmud
Energies (MDPI), Vol. 13, No. 7
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. In this work, to enhance the FRT capability of the DFIG based WFs, a Bridge-Type Flux Coupling Non-Superconducting Fault Current Limiter (BFC-NSFCL) is proposed. The effectiveness of the proposed BFC-NSFCL is evaluated through performance comparison with that of the Bridge-Type Fault Current Limiter (BFCL) and Series Dynamic Braking Resistor (SDBR). Moreover, a dynamic nonlinear controller is also proposed for controlling the operation of the BFC-NSFCL. Extensive simulations are carried out in the MATLAB/SIMULINK environment for both symmetrical and unsymmetrical temporary as well as permanent faults. Based on the simulation results and different numerical analysis, it is found that the proposed nonlinear controller based BFC-NSFCL is very effective in enhancing the FRT capability of the WF. Also, the BFC-NSFCL outperforms the conventional BFCL and SDBR by maintaining a near-seamless performance during various grid fault situations.
Conference papers
- 2020
Implementation of capacitive bridge-type superconducting fault current limiter to improve the FRT capability of DFIG based wind generator
Jakir Hasan, Md. Rashidul Islam, Md. Rabiul Islam, Abbas Z. Kouzani, M. A. Parvez Mahmud
Proceedings 2020 IEEE International Conference on Applied Superconductivity and Electromagnetic Devices (ASEMD), China
This paper proposes a nonlinear control-based flux coupling superconducting fault current limiter (NC-FC-SFCL) to enhance the transient performances of doubly fed induction generator (DFIG) based wind power system. This nonlinear control helps to utilize the fault limiting impedance of flux coupling superconducting fault current limiter (FC-SFCL) adaptively which suits the nonlinear dynamics of the power system more appropriately. This proposed NC-FC-SFCL's efficacy is compared with conventionally controlled FC-SFCL and it is found that the NC-FC-SFCL is superior in each aspect than the FC-SFCL.
- 2020
Optimized Use of Flux Coupling Superconducting Fault Current Limiter to Improve the Performance of DFIG Based Wind Power Generation System
Md. Rashidul Islam, Jakir Hasan, Md. Rabiul Islam, Abbas Z. Kouzani, M. A. Parvez Mahmud
Proceedings 2020 IEEE International Conference on Applied Superconductivity and Electromagnetic Devices (ASEMD), China
This paper proposes a nonlinear control-based flux coupling superconducting fault current limiter (NC-FC-SFCL) to enhance the transient performances of doubly fed induction generator (DFIG) based wind power system. This nonlinear control helps to utilize the fault limiting impedance of flux coupling superconducting fault current limiter (FC-SFCL) adaptively which suits the nonlinear dynamics of the power system more appropriately. This proposed NC-FC-SFCL's efficacy is compared with conventionally controlled FC-SFCL and it is found that the NC-FC-SFCL is superior in each aspect than the FC-SFCL.
- 2020
Enhancement of FRT Capability of DFIG Based Wind Farm by a Hybrid Superconducting Fault Current Limiter With Bias Magnetic Field
Md Rashidul Islam, Dhrubo Das Abir, Md Rabiul Islam, Jakir Hasan, Md Najmul Huda, Kashem M Muttaqi, Danny Sutanto
2020 IEEE International Conference on Power Electronics, Smart Grid and Renewable Energy (PESGRE2020), India
Doubly fed induction generators (DFIGs) have some enthralling features which made them one of the most popular choices in power system. However, any kind of system abnormalities will directly affect the DFIGs as their stator windings are directly linked to the grid. To comply with the grid code, every DFIG based wind farms are required to ride through the fault keeping the healthy part of the system undisturbed. So, fault ride through (FRT) capability improvement is a mandatory requirement for every DFIG based wind farms. Superconducting fault current limiters (SFCLs) have been popular for decades in this regard. In this paper, a new hybrid superconducting fault current limiter (HSFCL) with bias magnetic field is put forth. The HSFCL is designed by combining a double split reactor with a high temperature superconducting (HTS) magnet which is non-inductive. For the validation, its performance has been compared with that of bridge-type fault current limiter (BFCL) and series dynamic braking resistor (SDBR). MATLAB/Simulink environment is used to perform the simulations. It has been found that, the proposed HSFCL outperforms both BFCL and SDBR.
- 2019
Fault ride through capability improvement of DFIG based wind farms using active power controlled bridge type fault current limiter
Md Rashidul Islam, Jakir Hasan, Md Najmul Huda, Mohammad Ashraf Hossain Sadi
Proceedings 2019 North American Power Symposium (NAPS), USA
Doubly fed induction generators (DFIGs) provide some intriguing features which made them one of the most popular choices in power system. However, since the stator windings of a DFIG are attached to the grid, they are severely affected by faults. To comply with the grid code, a DFIG must stay connected to the grid during faults for a stable operation of the power system. Hence, the requirement of fault ride through (FRT) capability improvement is mandatory for every DFIG based wind farms. Bridge type fault current limiters (BFCLs) are one of the newest additions to solve the issues with FRT capability. There are several existing schemes to control a BFCL. However, no attempt had been taken to use the active power of the DFIG for controlling the BFCL. In this paper, a new control scheme using the active power of the system is proposed. Later, the system responses for different control schemes have been compared. Simulations have been carried out in Matlab/Simulink environment. It has been found that, the proposed control of BFCL using active power provides better FRT capability improvement than other existing schemes.
- 2019
Fault ride through capability enhancement of DFIG based wind farm using advanced converter topology
Md Rashidul Islam, Md Najmul Huda, Md Mahmudul Hasan, Jakir Hasan, Dhrubo Das Abir
2019 International Conference on Computer, Communication, Chemical, Materials and Electronic Engineering (IC4ME2), Bangladesh
In last few years, the most accepted and prominent choice in wind farm technology is Doubly Fed Induction Generators (DFIGs). But it is vulnerable to faults, especially which relate to grid, as its stator winding is directly attached to the grid. For uninterrupted supply of power, the DFIG requires to be connected to the grid during the faults according to the grid code. Hence, improving the Fault Ride Through (FRT) capability is one of the major concerns to ensure the stable operation of DFIG based wind farms. This paper is focused on the performance of various converter-inverter topologies for transient stability analysis of DFIG. Thus far, two level and three level neutral point clamped converter-inverter topologies have been implemented in FRT analysis. However, the analysis has not yet been performed for the two newly introduced advanced topologies i.e. flying capacitor and Zsource model. Simulations had been executed using PSCAD/EMTDC simulation platform. The effect of different converter-inverter topologies on the terminal voltage and the DC-link voltage were demonstrated and compared. Simulation results show that flying capacitor model outperforms all the other converter-inverter topologies by all aspects.