ALOK SHRIVASTAV - Academia.edu (original) (raw)

Papers by ALOK SHRIVASTAV

Research Square (Research Square), Apr 4, 2024

This paper focuses one dimensional-convolution neural networks (1D-CNN) with a snappy adaptive ar... more This paper focuses one dimensional-convolution neural networks (1D-CNN) with a snappy adaptive architecture to prevent fault removal complications and categorization into a computational analytics system by introducing a fast and consistent algorithm for fault identification, categorization, and instructions for transmission networks. The proposed algorithm can be implemented directly to source data, eliminating the need for a separate removal step and leading in a more powerful protected approach. The proposed approach related to the 3-phase voltages and currents at the relay position within the electric power line framework is considered as feedback for the recommended 1D-CNN algorithm. In order to provide the training and test statistics for the anticipated 1D-CNN approach, a 133 kV grid connected line is simulated using MATLAB/SIMULINK software. The suggested algorithm's test precision is contrasted with two additional neural and fuzzy neural network (FNN) standard techniques. The numerical outcomes of the test show that, in comparison to other conventional methods under several fault situations, the suggested diagnostic device is fast and efficient for categorizing and controlling the discrepancy of transmission line fault with greater accuracy.

Microsystem technologies, Jan 29, 2024

Microsystem Technologies, Dec 4, 2023

Microsystem technologies, Apr 18, 2024

A design tool with appropriate characteristics must be available to support the power management ... more A design tool with appropriate characteristics must be available to support the power management process. A major role of the battery is the Charge State (SOC) or simply the power of the battery measured using the original voltage value. A photovoltaic panel with a 12V DC voltage of 650W is used in this process. The approach is simulation/modeling which aims to improve battery charging process and controlling the power flow using sliding mode controller to enhance the performance. The goal is to research the energy and power loss of a smart battery-buffered load controller (BBSL) when used for the primary frequency controls on demand (PFC). Firstly, the depletion of battery energy arising from the PFC charging and discharge methods is evaluated. This research analyses the influence of PFC droop properties and dead-bands on the energy loss in a Lithium ion battery, by simulation measurements using a single stage BBSL. The model represents a nonlinear current-dependent resistance to the total voltage decrease of the battery. The energy loss simulated as the energy lost in this resistance is thus measured. HPSO-algorithm used in this analysis is one of the photovoltaic models used in photovoltaic systems, with maximum power, and with optimal conditions. The results showed that the battery charging simulation increased by 0.05% every 30 minutes. Furthermore, the simulation validation using Matlab/Simulink is carried out with data in accordance with the prototype design, at an efficiency of 88.4%.

International Journal of Power Electronics and Drive Systems, Jun 1, 2016

The paper deals with the design methodology of high voltage high power alternators driven by stea... more The paper deals with the design methodology of high voltage high power alternators driven by steam turbines. These alternators run at a high speed of 3000 rpm in most part of the world (at 3600 rpm in USA) and are of cylindrical pole construction. The design procedure suggested in the textbooks of design does not well-suit for large alternators of modern time. Modern high power alternators are designed with a low value of SCR to reduce the size, inertia and cost of the rotor. The diameter is limited by the consideration of centrifugal stresses. The no.of stator slots are determined by the no. of turns. The ventilating circuit has to be designed for hydrogen as coolant and in addition with water flowing through hollow conductors, if required. The data for the design variables and the design constraints are quite different from those for small power ratings. The materials to be chosen must be of very high quality. The computer programme has been chalked out and the case-study has been conducted keeping all these points in view.

Microsystem Technologies-micro-and Nanosystems-information Storage and Processing Systems, Sep 13, 2022

IntechOpen eBooks, Jun 25, 2021

Recently, there have been significant technological approaches for the bulk power grid. The custo... more Recently, there have been significant technological approaches for the bulk power grid. The customer demand is associated with conventional grid coupled large central generating stations through a high voltage transmission to a distribution system. Urban transmission systems are consistently progressing to meet the increasing needs for power and to replace old-pattern generation with native renewable generation and power provisions from outward green energy resources. Power grid is undergoing remarkable modernization towards advanced consistency, greater efficiency, and less cost by the incorporation of renewable energy and developed control technology. Quick developing nature of grid, consumer needs, and industrial invention situates substation modernization at the leading of grid transformation. Smart grid is essential to accomplish all the fastest technological reformations occurring in generation, transmission and distribution (T&D) of electric power, with growing application of sensors, computers and communications. In this study the recent trend and application of electric power grid is briefly enunciated.

Multimedia Tools and Applications, May 10, 2023

Zenodo (CERN European Organization for Nuclear Research), Apr 20, 2018

In this study, a simple, but effective method is presented for the limitation of the Y-yg transfo... more In this study, a simple, but effective method is presented for the limitation of the Y-yg transformers transient current. One of the main privileges of this method is its simple topology. It does not need any control circuit or measurement unit. The method is based on a three-phase thyristor bridge with a low resistance reactor. Since the number of thyristors is minimized, the voltage ripple, electrical losses and the malfunction probability owing to device failure are decreased considerably. The proposed method is simulated and validated by MATLAB simulation and conventional methods test results. It is shown that the proposed configuration is effective for the transient current limitation of Y-yg transformers

Multimedia Tools and Applications

Electric Grid Modernization

AIMS Electronics and Electrical Engineering, 2022

Recently, as technology advances, demand for electrical energy has increased at an unprecedented ... more Recently, as technology advances, demand for electrical energy has increased at an unprecedented rate in the power system network. With the growing importance of renewable energy assets and the global expansion of distributed generation (DG) efficiency, grid fault analysis is critical for increasing the efficiency and resilience of the power system. Apart from fault current, the interconnection of distributed generators in the distribution network results in an increase in system harmonics, as well as a halt in the operation of the overcurrent relay due to backward directed fault current. However, since the SFCL is considered to be more effective when used with distributed generators, the investigation of a protective relay due to the employment of SFCL is particularly necessary as a substitute strategy for limiting fault current in the distribution network. Additionally, many electrical customers continually require quality control, depending on the quality of the grid power it del...

Engineering, Technology & Applied Science Research, 2018

This paper deals with the performance evaluation of a three-phase transient current limiter in di... more This paper deals with the performance evaluation of a three-phase transient current limiter in distribution systems. A simulation model based on mathematical model of a three-phase, transient current limiter has been developed. The problem is formulated to justify the stable and harmonic free twelve-pulse and six-pulse converter based transient current limiter. Firstly, conventional methods like Bode Plot, Nyquist Plot and Nichols Chart are used to investigate the stability of twelve-pulse and six-pulse converter based transient current limiter. Next, a comparative analysis using fast Fourier transform is used to check the system harmonics using MATLAB simulation. The proposed design is found to be more efficient in making the system stable and harmonic free.

Microsystem Technologies, 2018

This paper proposes a methodology to investigate the stability of transient current limiter (TCL)... more This paper proposes a methodology to investigate the stability of transient current limiter (TCL) in distribution systems. The problem is formulated to justify the performance of 12-pulse and six-pulse converter and make an unstable system to stable condition. The proposed approach explicitly deals with stability as well as minimization of total harmonic distortion. Firstly, the conventional methods of Nichols Chart, Nyquist Plot and Bode Plot used to investigate the stability of the network using TCL. In the next stage, a modified TCL circuit is inserted in the network system to make the system completely stable. A comparative analysis using Fast Fourier Transform (FFT) is shown to make the system harmonic free using MATLAB simulation. The proposed design is found to be more efficient in making the system stable and harmonic free.