Papers by Ranjan kumar Jena
Periodica polytechnica. Electrical engineering and computer science, Apr 3, 2024
In this paper, an adaptive hierarchical fractional-order sliding mode controller (AHFSMC) for a m... more In this paper, an adaptive hierarchical fractional-order sliding mode controller (AHFSMC) for a multi-terminal Voltage Source Converter (VSC) based High Voltage Direct Current (HVDC) Integrated with a wind farm (WF) system is designed. Multi-terminal VSC-HVDC (MtVDC) connected to wind farms has received several attentions in the power sector because of its numerous benefits. The effectiveness of MtVDC, on the other hand, is dependent on the control scheme used. To achieve this goal, a hierarchical sliding mode control method by fractional-order calculus is used. The controller parameters are adjusted according to a suitable adaptation method to enhance the proposed controller's robustness compared to the system uncertainties coefficient. An appropriate Lyapunov-based approach is used to achieve the adaptation rule. This paper discusses a scheme to design additional controllers in MtVDC systems to damp electromechanical oscillations, one of several features of HVDC presently under active study. Numerical simulations validate the proposed control strategy's feasibility and efficiency. This novel approach is employed for the upgrading of system stability with the dynamic properties of the MtVDC in a variety of operative conditions.
International journal of electrical & electronics research, Nov 19, 2023
To keep the energy balance and power quality in check, a proper controller must be made for all t... more To keep the energy balance and power quality in check, a proper controller must be made for all the parts of the microgrid to work together. The sizing of the microgrid is done by considering the distributed generators and their connected ACDC loads. The performance of DC will obtain according to the state of charge condition of the battery bank. So it is essential to operate the battery bank by observing the state of the charge condition. To maintain the voltage stability of the system the PLC (programmable logic controller) best switching controller is designed to operate the battery bank according to the distributed generators' demand. The main objective of the present work is to enhance the power conversion efficiency and maintain voltage stability during essential conditions which are fulfilled by the Battery storage and its controller. It must provide effective voltage support in a fault condition.
Turkish Journal of Electrical Engineering and Computer Sciences, Mar 1, 2023
The tailpipe emissions caused by vehicles using internal combustion engines are a significant sou... more The tailpipe emissions caused by vehicles using internal combustion engines are a significant source of air pollution. To reduce the health hazards caused by air pollution, advanced countries are now adopting the use of electric vehicles (EVs). Due to the advancement of electric vehicles, research and development efforts are being made to improve the performance of EV motors. With a nominal reference stator flux, the classical induction motor drive generates significant flux, torque ripple, and current harmonics. In this work, a teamwork optimization algorithm (TOA)-based optimal stator flux strategy is suggested for torque ripple reduction applied in a classical direct torque-controlled induction motor drive. The suggested algorithm's responsiveness is investigated under various steady-state and dynamic operating conditions. The proposed DTC-IM drive's simulation results are compared to those of the classical and fuzzy DTC-IM drives. The proposed system has been evaluated and found to reduce torque ripple, flux ripple, current harmonics, and total energy consumption by the motor. Further, a comparative simulation study of the above methods at different standard drive cycles is presented. Experimental verification of the proposed algorithm using OPAL-RT is presented. The results represent the superiority of the proposed algorithm compared to the classical DTC and fuzzy DTC IM drives. The torque ripple reduction approach described in this study can also be applied to all induction motors, not only those for electric vehicles or hybrid electric vehicles (HEVs).
International journal of computer science and informatics, Jul 1, 2012
When using wireless sensor networks for real-time data transmission, some critical points should ... more When using wireless sensor networks for real-time data transmission, some critical points should be considered. Restricted computational power, memory limitations, narrow bandwidth and energy supplied present strong limits in sensor nodes. Therefore, maximizing network lifetime and minimizing energy consumption are always optimization goals. To reduce the energy consumption of the sensor network during image transmission, an energy efficient image compression scheme is proposed. The image compression scheme reduces the required memory. To address the above mentioned concerns, in this paper we describe an approach of image transmission in WSNs , taking advantage of JPEG2000 still image compression standard and using MATLAB . These features were achieved using techniques: the Discrete Wavelet Transform (DWT), and Embedded Block Coding with Optimized Truncation (EBCOT). Performance of the proposed image compression scheme is investigated with respect to image quality and energy consumption. Simulation results are presented and show that the proposed scheme optimizes network lifetime and reduces significantly the amount of required memory by analyzing the functional influence of each parameter of this distributed image compression algorithm.
Torque Quality Improvement in Induction Motor for Electric Vehicle Application Based on Teamwork Optimization
Advances in Electrical and Electronic Engineering
The low frequency electromechanical oscillations (LFEOs) in electric power system are because of ... more The low frequency electromechanical oscillations (LFEOs) in electric power system are because of weaker inter-ties, uncertainties, various faults and disturbances. These LFEOs (0.2-3 Hz.) are less in magnitude and are responsible for lower power transfer, increased losses and also threaten the stability of power system. An adaptive interval type-2 fuzzy sliding mode controlled power system stabilizer (AIT2FSMC-PSS) is presented to neutralize the LFEOs and enhance stability under uncertainties and external disturbances. The AIT2FSMC is a hybridization of type-2 fuzzy logic system (T2FLS) with conventional SMC to lower the chattering effect, enhance the robustness of reaching phase and improve system’s performance. Here, T2FLS is used for estimating the unknown functions of SMC. A robust sliding surface is presented to keep the system in the desired plane and remain stable under disturbance conditions. A modified control law is proposed for selecting the control parameters and Lyapuno...
Detection and Classification of Voltage Sag Causes Based on S-Transform and Extreme Learning Machine
Lecture notes in electrical engineering, 2020
This manuscript presents a method based on S-transform (ST) and extreme learning machine (ELM) to... more This manuscript presents a method based on S-transform (ST) and extreme learning machine (ELM) to identify the causes of voltage sag. Exact recognition of voltage sag causes (VSCs) can help decrease the problems initiated due to voltage dip in electric power system. ST is a well-known time–frequency analysis technique. Initially, the extracted voltage signals are pre-processed through ST and several statistical features are extracted, which are later applied as inputs to ELM classifier for voltage sag cause detection. Here, three significant causes are simulated for voltage sag in MATLAB/Simulink, like (i) single-phase and three-phase fault, (ii) starting of induction motor and (iii) energization of transformer. The performance of the proposed technique is compared with other existing voltage sag cause classification techniques. The classification results indicate the ability of the proposed technique for detection and classification of VSCs more accurately.
International journal of engineering & technology, May 31, 2018
DG Grid interfaced system has been focused through this paper. The objective is to improve power ... more DG Grid interfaced system has been focused through this paper. The objective is to improve power quality of the grid, which was polluted by various means. The improvement of power quality of the micro grid includes uses of a specially designed DG, BESS and Power Quality conditioner. The system consists of a two-stage power conversion. Solar PV supplies power for both DC and AC loads. Manufacturer datasheet is used for modeling the PV panel. In order to keep the BUS voltage stable a BESS is joined to DC BUS through power electronic converter, which is used to absorb the excess power whenever production is high and deliver power to the load on low production. The system continues to supply the local loads, incase of grid discontinuity. Thus it eliminates threats of islanding. This paper also focuses on control and stability of DC bus voltage and energy management scheme. The project uses Matlab/Simulink platform for efficient verification. For power quality improvement of Micro Grid it uses 3leg inverter, which is coupled with SPV and MPPT with Battery storage, which is used as compensator for the whole system. For prevention to reduce voltage current and power flow between DG and Grid, it is necessary to have an optimum control. Through the adjustment of power circulation between shunt paired DG ensures current voltage and power on micro grid. +ve,-ve and Zero sequence components of currents and voltage can be adjusted by the suggested methodology in Grid tied DG system. The said PQC have multiple uses. Firstly as a power converter and secondly as a shunt APF for harmonic compensation on voltage, current and power (both active and reactive) for both balanced and unbalanced loads in the Grid tied DG system. It also cares for the neutral conductor. Either individually or in grid connected mode all the above objectives can be achieved. For the entire Grid, it is realized that after compensation three phase four wired un-balance loads looks as balanced linear resistive load for the Grid. All these task significantly replicated on MATLAB/Simulink. After compensation the total harmonic distortion on input voltage and current reduced drastically. IEEE519 in the range of 5% suitably accepts it.
Study on fault of grid tied DG — A novel method for improvement of power quality under unbalanced voltage condition
Various power quality issues can be mitigated by the introduction of power quality conditioner wh... more Various power quality issues can be mitigated by the introduction of power quality conditioner which shows a spectacular performance for grid tied DG system. This paper studied on various power quality issue, unbalance voltage and current distribution with several fault. Adding different adjusting commands which defines the system like existing reference current harmonic current relation with other system parameters, power wavering etc. are taken into account for achieving quality power and maximal gain. It the solo task of the controller to guide the entire system controlling current to generate the triggering signal for CCVSI. All the system parameter like Grid, DG, Controller, MPPT, fault etc. are extensively simulated under MATLAB/SIMULINK platform it is observe that all linear and non-linear load appears as balance load for entire grid. Specifically the faulty unit should isolated from the cascaded system by using sophisticated relays and CBs without affecting the entire system. It is also observed that this novel control strategy satisfactorily mitigate power quality issues without driving the system towards unstable phase. The converters used in this paper have multiple use like active power injector, reactive power compensator harmonic suppressor, power quality conditioner etc. all these task can be extracted either independently or can be performed together. After compensation the source current and source voltage THD value comes below 5% which is suited by IEEE 519 standard
Variational mode decomposition <scp>‐</scp> subspace‐K‐nearest neighbour based islanding detection in distributed generation system
International Transactions on Electrical Energy Systems, Apr 26, 2021
Investigate, Analyze, and Design of Real-Time Problems in the Domain of Power Electronics and Energy Using MATLAB: Review and Application
Advances in sustainability science and technology, Nov 17, 2020
Variational mode decomposition ‐ subspace‐K‐nearest neighbour based islanding detection in distributed generation system
International Transactions on Electrical Energy Systems, 2021
Study on fault of grid tied DG — A novel method for improvement of power quality under unbalanced voltage condition
2017 4th International Conference on Advanced Computing and Communication Systems (ICACCS), 2017
Various power quality issues can be mitigated by the introduction of power quality conditioner wh... more Various power quality issues can be mitigated by the introduction of power quality conditioner which shows a spectacular performance for grid tied DG system. This paper studied on various power quality issue, unbalance voltage and current distribution with several fault. Adding different adjusting commands which defines the system like existing reference current harmonic current relation with other system parameters, power wavering etc. are taken into account for achieving quality power and maximal gain. It the solo task of the controller to guide the entire system controlling current to generate the triggering signal for CCVSI. All the system parameter like Grid, DG, Controller, MPPT, fault etc. are extensively simulated under MATLAB/SIMULINK platform it is observe that all linear and non-linear load appears as balance load for entire grid. Specifically the faulty unit should isolated from the cascaded system by using sophisticated relays and CBs without affecting the entire system...
Power quality enhancement of micro-grid using DG and power quality conditioner
2017 Second International Conference on Electrical, Computer and Communication Technologies (ICECCT), 2017
This paper focus on specially designed DG based Power Quality Conditioner for Micro Grid applicat... more This paper focus on specially designed DG based Power Quality Conditioner for Micro Grid applications. Three leg inverter coupled with solar PV with MPPT used as Compensator can be used for distinct DGs in the micro grid for power quality improvement of the entire system. Optimum control can be achieved to avoid detraction for voltage, current and Power flowing between Grid and DG. By adjusting power distribution among shunt connected DG for ensuring Voltage and current balance inside micro grid, the said topology able to compensate unwanted Zero sequence, positive sequence and negative sequence components of voltage, current inside the entire Grid system. The Power Quality conditioner and DG inverter have dual use for this particular purpose. Primarily used as power converter for injecting power created from DG to Grid, secondly performed as parallel Active Power Filter for compensating harmonics, unbalanced voltage, current, active and reactive power demand for the balance and unb...
Detection and Classification of Voltage Sag Causes Based on S-Transform and Extreme Learning Machine
This manuscript presents a method based on S-transform (ST) and extreme learning machine (ELM) to... more This manuscript presents a method based on S-transform (ST) and extreme learning machine (ELM) to identify the causes of voltage sag. Exact recognition of voltage sag causes (VSCs) can help decrease the problems initiated due to voltage dip in electric power system. ST is a well-known time–frequency analysis technique. Initially, the extracted voltage signals are pre-processed through ST and several statistical features are extracted, which are later applied as inputs to ELM classifier for voltage sag cause detection. Here, three significant causes are simulated for voltage sag in MATLAB/Simulink, like (i) single-phase and three-phase fault, (ii) starting of induction motor and (iii) energization of transformer. The performance of the proposed technique is compared with other existing voltage sag cause classification techniques. The classification results indicate the ability of the proposed technique for detection and classification of VSCs more accurately.
Investigate, Analyze, and Design of Real-Time Problems in the Domain of Power Electronics and Energy Using MATLAB: Review and Application
MODWT-XGBoost based smart energy solution for fault detection and classification in a smart microgrid
Applied Energy, 2021
Abstract Electrical power being the key driver for any technology driven development, an intellig... more Abstract Electrical power being the key driver for any technology driven development, an intelligent technology enabled smart grid which ensures reliable, environment-friendly and power quality certainly provides the necessary fillip to the urban intelligence. This study introduces a novel differential approach of microgrid fault detection and classification as a smart grid enabler. The proposed microgrid protection scheme (MPS) involves an initial phase of pre-processing through anti-aliasing and filtering out of noise of the retrieved system parameters. This is followed by feature extraction process using Maximal Overlap Discrete Wavelet Transform (MODWT) with an abstract wavelet family of mother wavelet ‘FejerKorovkin’ and three level of decomposition. The differential energy calculated for both three-phase current and its zero-sequence current component at each of the decomposition level of MODWT finally serves as input to an Extreme Gradient Boost (XGBoost) based machine learning model to achieve incipient fault detection and classification. The combination of MODWT and XGBoost as an intelligent MPS working upon a pre-processed de-noised system signals, hitherto untried as per the knowledge of the authors, is tested using standard IEC microgrid test model under varied topological configurations, operational modes, fault conditions, etc. The simulation results, so extensively obtained, prove the effectiveness and robustness of the proposed approach of MPS. The MPS is additionally verified on an IEEE 13 bus microgrid model to reinforce the clam of efficiency.
International Journal of Computer and Communication Technology, 2013
Energy constraint is an important issue in wireless sensor networks. This paper proposes a distri... more Energy constraint is an important issue in wireless sensor networks. This paper proposes a distributed energy optimization method for target tracking applications. Sensor nodes are clustered by maximum entropy clustering. Then, the sensing field is divided for parallel sensor deployment optimization. For each cluster, the coverage and energy metrices are calculated by grid exclusion algorithm and Dijkstra’s algorithm, respectively. Cluster heads perform parallel particle swarm optimization to maximize the coverage metric and minimize the energy metric. Particle filter is improved by combing the radial basis function network, which constructs the process model. Thus, the target position is predicted by the improved particle filter. Dynamic awakening and optimal sensing scheme are then discussed in dynamic energy management mechanism. A group of sensor nodes which are located in the vicinity of the target will be awakened up and have the opportunity to report their data. The selection...
International Journal of Engineering & Technology, 2018
DG Grid interfaced system has been focused through this paper. The objective is to improve power ... more DG Grid interfaced system has been focused through this paper. The objective is to improve power quality of the grid, which was polluted by various means. The improvement of power quality of the micro grid includes uses of a specially designed DG, BESS and Power Quality conditioner. The system consists of a two-stage power conversion. Solar PV supplies power for both DC and AC loads. Manufacturer datasheet is used for modeling the PV panel. In order to keep the BUS voltage stable a BESS is joined to DC BUS through power electronic converter, which is used to absorb the excess power whenever production is high and deliver power to the load on low production. The system continues to supply the local loads, incase of grid discontinuity. Thus it eliminates threats of islanding. This paper also focuses on control and stability of DC bus voltage and energy management scheme. The project uses Matlab/Simulink platform for efficient verification. For power quality improvement of Micro Grid i...
INTERNATIONAL JOURNAL OF ELECTRICAL ENGINEERING & TECHNOLOGY, 2019
A hybrid microgrid is composed of combination of the AC and DC grid which are interlined with bid... more A hybrid microgrid is composed of combination of the AC and DC grid which are interlined with bidirectional converter. To avoid the multiple conversion and more reliable the proposed hybrid microgrid is designed by taking diesel generators, Photovoltaic cell, induction generators and battery bank. It is connected to the utility grid in normal operating mode. During fault condition, it should disconnect and shift into island operation mode. This paper proposes a standalone hybrid generation system, fed by induction generator which is run with a battery banks, solar power, and storage battery. Hybrid microgrid is an excellent solution for electrification of remote rural areas where the grid extension is very difficult and not economical. Practically it has been seen that most of the isolated grid is powered by the diesel generation system, such systems has several problems like high cost fuel with extra transportation cost and making more pollution to the environment .To make pollution free environment ,an eco-friendly hybrid microgrid system has designed. It maintains the power quality in steady state condition. During this transient condition, the voltage and frequency of the microgrid may change rapidly due to low inertia present in microgrid. Therefore, local voltage and frequency control is one of the major challenges in islanded condition. To achieve this particle swarm optimization (PSO) algorithm is implemented in the proposed microgrid which is verified by MATLAB Simulink
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Papers by Ranjan kumar Jena