Satish Kumar Ramoji
@nits.ac.in
Research Scholar|Electrical Engineering
National Institute of Technology Silchar, Assam
Scopus Publications
Scholar Citations
Scholar h-index
Scholar i10-index
Scopus Publications
Biswanath Dekaraja, Lalit C. Saikia, and Satish K. Ramoji
Wiley
Manoja Kumar Behera, Lalit Chandra Saikia, Satish Kumar Ramoji, Sanjeev Kumar Bhagat, and Biswanath Dekaraja
IEEE
The energy storage system (ESS) makes it easier to handle sporadic renewable energy sources (RESs). However, maintaining the power equilibrium between RES, loads, and ESS is crucial and requires effective control. The work presents a combined control method for an AC grid system that is powered by photovoltaics (PV) and battery and supercapacitor (SC) as hybrid energy storage (HES) to balance the power. The control makes use of the battery uncompensated power to boost the performance of the HES system. The PV-HES system makes sure that the critical loads always get power. The proposed approach enables rapid recovery of the DC-link voltage, all the while guaranteeing efficient distribution of power between the battery and the SC. A proportional integral controller that has been fine-tuned using the sparrow search algorithm is employed to manage the DC bus voltage effectively, leading to reduced fluctuations in the dynamic state and enhanced overall system stability. A smooth voltage source converter control is obtained without any major disruption. A range of operational scenarios, encompassing factors like fluctuations in PV generation and load demands, demonstrate the effectiveness of the proposed control strategy compared to conventional control methods. Simulation findings demonstrate that the proposed control maintains system stability under dynamic conditions.
Sanjeev Kumar Bhagat, Lalit Chandra Saikia, Manoja Kumar Behera, Satish Kumar Ramoji, Biswanath Dekaraja, and Getaneh Mesfin Meseret
IEEE
This article focuses on the automatic generation control (AGC) of a multi-area thermal system integrated with a wind turbine system (WTS). The effect of various tilt controllers such as tilt integral derivative (TID),TID with filter coefficient (N) (TIDN), integral minus tilt derivative (I-TD), and I-TD with filter coefficient (N) (I-TDN) on system dynamics have been investigated. The Mayfly Optimization Algorithm (MOA) is employed for the purpose of optimizing the controller gains and other parameters. Analysis revealed that the dynamic responses corresponding to proposed I-TDN controller outperformed others. Investigation also suggests that integration of the WTS into the system leads to improved dynamic responses. Sensitivity analysis for ascertain resilience of proposed controller suggest that the obtained optimum values of controller gain and other parameters at nominal conditions as being sufficiently robust for significant changes in loading conditions.
Satish Kumar Ramoji, Lalit Chandra Saikia, Biswanath Dekaraja, Manoja Kumar Behera, Getaneh Mesfin Meseret, and Sanjeev Kumar Bhagat
IEEE
The focus of this study is to implement a modified TID controller known as the Integral Double Derivative minus Tilt Controller (IDD-T), which is designed to diminish the voltage and frequency aberrations of two-area system in coordinated manner. The IDD-T controller parameters are fine-tuned by an optimization algorithm known as Harris Hawks Optimization (HHO). The behavior of IDD-T controller, which was developed using HHO technique, is analyzed in the context of a two-area system, where control Area-1 houses reheat thermal-hydro-solar thermal and control Area-2 includes reheat thermal-hydro-wind turbines. The reheat thermal plants are equipped with pertinent system nonlinearities. The two areas are interconnected by AC tie-lines and HVDC links. The transcendence of the suggested IDD-T controller is corroborated by contrasting its attainment by other controllers for example, TID and ID-T. The supremacy of HHO algorithm is verified by other optimization methods. The repercussion of AVR module proclaims substantial betterment in system dynamics. The simulation outcomes evince that suggested IDD-T controller based on HHO indicates augment in system dynamics under various aspects such as variation in system loading conditions and alteration in magnitude and place of perturbation.
Biswanath Dekaraja, Lalit Chandra Saikia, Satish Kumar Ramoji, Sanjeev Kumar Bhagawt, Monaja Kumar Behra, and Geetan Mesfin
IEEE
This article proposed a new secondary controller called (1 +IDF) for automatic generation control (AGC) of multiarea hybrid power systems (HPS) incorporating accurate HVDC (AHVDC) link having Phase-Lock-Loop (PLL) and supplementary power modulation controller (SPMC). The HPS consists of a reheat-thermal plant and realistic dish-Stirling solar thermal plant (RDSTS). The suggested controller gains are tuned by particle swarm optimization algorithm to obtain desired system dynamic responses. Simulation results exhibit the superiority of the proposed controller compared to PIDF in terms of settling time, and peak aberrations. The incorporation of RDSTS into every reheat-thermal area enhances system's performance. Investigation reveals that the performance of AGC degrades in presence of the AHVDC link compared to conventional HVDC and AC links. The accumulation of PLL and SPMC into parallel AC/AHVDC links improved the AGC performance.
Biswanath Dekaraja, Lalit Chandra Saikia, and Satish Kumar Ramoji
Springer Nature Singapore
Satish Kumar Ramoji, Lalit Chandra Saikia, and Biswanath Dekaraja
Springer Nature Singapore
Biswanath Dekaraja, Lalit Chandra Saikia, Satish Kumar Ramoji, Manoja Kumar Behera, Sanjeev Kumar Bhagat, Arinditi Saha, and Naladi Ram Babu
Springer Nature Singapore
Satish Kumar Ramoji, Lalit Chandra Saikia, Biswanath Dekaraja, Manoja Kumar Behera, Sanjeev Kumar Bhagat, Naladi Ram Babu, and Arindita Saha
Springer Nature Singapore
Arindita Saha, Lalit Chandra Saikia, Naladi Ram Babu, Sanjeev Kumar Bhagat, Manoja Kumar Behera, Satish Kumar Ramoji, and Biswanath Dekaraja
Springer Nature Singapore
Manoja Kumar Behera, Lalit Chandra Saikia, Satish Kumar Ramoji, Biswanath Dekaraja, Arindita Saha, Sanjeev Kumar Bhagat, and Naladi Ram Babu
Springer Nature Singapore
Satish Kumar Ramoji and Lalit Chandra Saikia
Informa UK Limited
This paper deals with unified method of voltage and frequency control of an interconnected three unequal-area systems with the Automatic Load Frequency Control (ALFC) and Automatic Voltage Regulato...
Satish Kumar Ramoji and Lalit Chandra Saikia
Informa UK Limited
This article presents an amalgamated pattern of automatic load frequency control (ALFC) and automatic voltage regulator (AVR) system in a three-area interconnected power system using the Fuzzy two-...
Satish Kumar Ramoji and Lalit Chandra Saikia
Wiley
Biswanath Dekaraja, Lalit Chandra Saikia, Satish Kumar Ramoji, Manoja Kumar Behera, Sanjeev Kumar Bhagat, and Getaneh Mesfin Meseret
IEEE
Satish Kumar Ramoji, Lalit Chandra Saikia, Biswanath Dekaraja, Manoja Kumar Behera, Getaneh Mesfin Meseret, and Sanjeev Kumar Bhagat
IEEE
This paper conveys impact of Thyristor-Controlled Series Capacitor (TCSC) and coalesced Energy Storage systems (ESs) on unified ALFC-AVR concept of a multi-unit based interrelated power system. Each thermal unit is equipped with nonlinearity constraints. Besides thermal units, Area-1 includes bio-diesel engine, Area-2 contains HDGT and Area-3 comprises Solar Thermal Power Plants (STPP). The two degree of freedom Tilt-Integral-Double Derivative (2DOF-TIDD) controller is implemented in both ALFC and AVR systems. The Harris Hawks Optimization (HHO) technique is used to optimize gains of all considered controllers. The 2DOF-TIDD controller is upheld to be distinguished relative to TID, TIDD controllers in comparison to all time-domain indices. The system dynamics is investigated in presence and absence of TCSC and ESs as well as without both of them. Finally, sensitivity analysis of proposed controller is analyzed to understand the sturdiness against different magnitudes of system loading, and various magnitudes of physical constraints.
Getaneh Mesfin Meseret, Lalit Chandra Saikia, Manoja Kumar Behera, Satish Kumar Ramoji, Biswanath Dekaraja, and Sanjeev Kumar Bhagat
IEEE
This paper examines the load frequency regulation of a hydrothermal system with three uneven areas that are combined with a wind energy source in each area. A new integrated controller known as Fuzzy proportional derivative with filter (Fuzzy-PDF) has been modeled. The Skill Optimization Algorithm (SOA), an optimization algorithm, is used to optimize proportional derivative with filter (PDF) gains as well as the inputs-output scaling factors of the Fuzzy logic controller. The effect of incorporating the high voltage direct current (HVDC) tie-line in parallel with the Alternative current (AC) tie-line on the dynamic response of this system is evaluated. It reveals that on the present model with the AC-HVDC tie-line the dynamic response is improved. The simulation results show that the Fuzzy-PDF controller integrated with a wind energy source outperforms PDF alone. Sensitivity investigations have demonstrated that SOA-optimized Fuzzy-PDF controller parameters are robust to different loading conditions.
Manoja Kumar Behera, Lalit Chandra Saikia, Satish Kumar Ramoji, Sanjeev Kumar Bhagat, Biswanath Dekaraja, and Getaneh Mesfin Meseret
IEEE
Solar photovoltaic (SPV) power is highly intermittent as its power generation is highly affected by atmospheric variation. Thus, high penetration of SPV into the distribution network severely threatens grid stability. Therefore, the need for ancillary compensation support is increasingly important. However, the additional converter arrangement for compensation incurs extra costs. In this article, a sparrow search algorithm tuned anti-windup fractional order proportional integral (AWFOPI) controller for a three-phase grid-tied SPV-distribution static compensation system (DSTATCOM). During the daytime, active load demand is intended to be met by the system configuration powered by SPV equipped with the proposed control approach. And also provide reactive load demand such that UPF operation with the grid is always ensured. After satisfying load needs, excess SPV power is pumped into the grid. The system functions as DSTATCOM, supporting the grid reactive power needs throughout the night when SPV power is unavailable. This controller is tested in Matlab via a series of simulated experiments. The simulation results show that the proposed controls operate effectively under unfavourable scenarios.
S. K. Bhagat, L. C. Saikia, G. M. Meseret, M. K. Behera, S. K. Ramoji, N. R. Babu, and B. Dekaraja
IEEE
This article presents the effect of a precise wind turbine system (PWTS) and accurate model of HVDC link on multi-area AGC systems. The proposed system comprises one thermal and PWTS unit in all the areas. A novel secondary controller known as tilt-integral-double derivative (TIDD) has been developed. In order to fine-tune the controller and other variables, the bird swarm algorithm (BSA) has been used effectively. The comparison of system dynamics responses with PID, TID, and TIDD controller concluded that the system with TIDD outperformed. The study of PWTS integration on system dynamics concluded that PWTS improves the system’s dynamic performance. Moreover, the integration AHVDC link with AC tie-line revealed significantly improved in dynamics responses. Further, the sensitivity analysis has been performed to test the proposed TIDD controller’s robustness under different loading conditions.
Biswanath Dekaraja, Lalit Chandra Saikia, and Satish Kumar Ramoji
IEEE
This article presents a novel fractional-order (FO) cascade controller named FO tilt-derivative with filter cascaded to FO proportional-derivative with filter (CFOTDN-FOPDN) controller for unified automatic load frequency control study considering automatic voltage regulator loop. The considered system includes hydro and dish-Stirling solar thermal system in area-1 and area-2 consists of thermal and solar thermal power plant. Pertinent physical constraints are provided to the thermal and hydro units. The communication time delay (CTD) among load dispatch center and location of the power generation unit is considered. The optimization method named artificial flora algorithm is utilized to accomplish superlative solution. Investigations reveal that the proposed controller outperforms the PIDN and TIDN controllers. Analysis reflects that the higher value of CTD degrades the system performance. Moreover, the system performance improves with the higher value of the solar insolation. Lastly, the sensitivity analysis divulges the AFA optimized controller parameters are more robust against wide variations of system loading.
Manoja Kumar Behera, Lalit Chandra Saikia, Satish Kumar Ramoji, Biswanath Dekaraja, and Sanjeev Kumar Bhagat
IEEE
An active current detection technique (ACDT) for a three-phase grid integrated photovoltaic system is presented in this research. As a result of using the triangle character function for component extraction, the suggested control reduces the overall computing load. This demonstrates the efficacy of the proposed ACDT under a range of operating situations. Control algorithm design also provides desired voltage regulation, decreasing peak overshoot during transient conditions. This will also aid in the rapid and precise regulation of grid current concerning the reference current. Further, the fractional-order controller is adopted for DC-link voltage stabilization during transient dynamics of the system. The suggested control algorithm successfully maintains a constant power flow to meet the load requirement. Finally, simulation experiments were conducted in the Matlab Simulink in order to validate the proposed controller ability. The simulation result shows proposed control performs well subject to system perturbation.
Sanjeev Kumar Bhagat, Lalit Chandra Saikia, Naladi Ram Babu, Biswanath Dekaraja, Satish Kumar Ramoji, Manoja Kumar Behera, and Sumana Das
IEEE
This paper deals with the effect of various FACTS devices and HVDC links on multi-area power systems. Area-1, 2, and 3 incorporated hydro-thermal and wind turbine systems (WTS) as generating units. A contemporary controller called 2DOF-TIDN has been adopted for three area AGC systems, and BSA is successfully utilized to get the optimum values of controller parameters. The comparison of system dynamics with 2DOF-TIDN, PID and TID, revealed that the system with 2DOF-TIDN provides better dynamics. Moreover, analysis of system dynamics with and without WTS shows that the system has better dynamics with WTS. Further, incorporating HVDC link in parallel to AC tie-line revealed system dynamics drastically improved. Furthermore, the study of various FACTS devices integration on three area AGC system showed that, when the system is provided with GCSC, the system exhibits better dynamics than TCPS and SSSC
Biswanath Dekaraja, Lalit Chandra Saikia, Satish Kumar Ramoji, Monoja Kumar Behera, and Sanjeev Kumar Bhagat
IEEE
This article discusses a study on the impact of high voltage DC (HVDC) link and redox flow battery (RFB) on the system dynamics of the three area hydrothermal system incorporating geothermal plants in the automatic load frequency control (ALFC) studies by considering automatic voltage regulator (AVR) loop. A novel cascaded fuzzy PD (FPD) and tilt-integral-derivative (TID), CFPD-TID controller is proposed in combined ALFC-AVR studies and optimized controller gains and other parameters using an artificial flora algorithm. Comparative analysis exhibited that the proposed CFPD-TID controller provided better system performance compared to the TID, cascade PD and TID (CPD-TID) controllers in terms of maximum overshoots, undershoots, and settling times. The peak deviation and number of oscillations are reduced when the RFB is included in all control areas of the investigated system. The system dynamics performance improved after connecting the HVDC link in parallel with the AC tie-line between area1 and area2. Moreover, the system dynamics responses are drastically enhanced when all the AC tie-lines are replaced by the HVDC links. Sensitivity analysis is performed to validate the suggested controller's resilience against a wide range of system loading variations.
Satish Kumar Ramoji, Lalit Chandra Saikia, Biswanath Dekaraja, Manoja Kumar Behera, and Sanjeev Kumar Bhagat
IEEE
This article discusses the repercussions of Superconducting Magnetic Energy Storage (SMES) system and High Voltage DC link in amalgamated Automatic Load Frequency Control (ALFC) and Automatic Voltage Regulator (AVR) pattern of a multi-area multi-unit interconnected power system. Reheat thermal and hydro plants are included in each area, as well as a heavy duty gas turbine plant in Area 1 and 2, and a geo thermal plant in Area 3. In thermal plants, the appropriate amount of GRC and GDB is mounted, whereas in hydro plants, the appropriate amount of only GRC is mounted. The two degrees of freedom fractional Integral minus Tilt-Derivative filter (2DOF FOI-TDF) controller is observed such as controllers of ALFC and AVR systems. With the Harris Hawks Optimization (HHO) method, the preeminent controller values’ are found. Apropos all time-domain indices, the proposed 2DOF FOI-TDF controller is proven to be superior to FOI, TIDF controllers. Similarly, the system dynamics are explored in order to analyze the repercussions of SMES and HVDC links separately. Finally, sensitivity assessments are carried out with various magnitudes of system loading, demonstrating the proposed controller's robustness.
Sanjeev Kumar Bhagat, Lalit Chandra Saikia, Naladi Ram Babu, Satish Kumar Ramoji, Deka Raja, and Manoja Kumar Behera
Elsevier BV