Archives

2019

Vol 4, No 1 (2019): “Recent Trends in Wind Technology”

Authors: Mr. Atharva Khare, Prashant Honmukhe

Abstract: Wind power now represents a major and growing source of renewable energy. Large wind turbines (with capacities of up to 6-8 MW) are widely installed in power distribution networks. Increasing numbers of onshore and offshore wind farms, acting as power plants, are connected directly to power transmission networks at the scale of hundreds of megawatts. As its level of grid penetration has begun to increase dramatically, wind power is starting to have a significant impact on the operation of the modern grid system. Advanced power electronics technologies are being introduced to improve the characteristics of the wind turbines, and make them more suitable for integration into the power grid. Meanwhile, there are some emerging challenges that still need to be addressed. This paper provides an overview and discusses some trends in the power electronics technologies used for wind power generation. First, the state-of-the-art technology and global market are generally discussed. Several important wind turbine concepts are discussed, along with power electronics solutions either for individual wind turbines or for entire wind farms. Some technology challenges and future solutions for power electronics in wind turbine systems are also addressed.

Vol 4, No 1 (2019): Mobile Biometric Attendance System

Authors:- Aditya D Sarkate, Durgesh B Pathare, Vaishnavi V Deshmukh, Shiwani A Dewang, Krunal N Ghode, A K Duchakke

Abstract:- Attendance system plays vital role in any institution, schools and colleges where the record of their regularity is noted. In This concepts we have replace the traditional attendance system into moving automated biometric attendance system where teachers don’t have to call students name for their attendance. A moving robot will come to student’s place where he has to just place their finger on fingerprint Scanner. This concept will save time while taking attendance in manual system. There will be transparency and also authentication will be fully based on the students biometric so no issue of fake attendance. This will increase overall classroom attendance as biometric of students cannot be mismatched.

Vol 4, No 1 (2019): Reducing Penalty in Commercial Power Sector by Implementing Automatic Power Factor Corrector Unit: A Case Study

Author:-Prof.Gopal Reddy.K*, Ashwin . M, Dhanyashree. D. M, Kiran. C. S, Darshangowda. M. J

Abstract:-In the industrial sector the various motoring loads are continuously running and increasing the inductive load. So the power factor in this system get reduces due to the inductive reactive power. But the electricity board has a standard limit regarding the power factor values and if the power factor goes below the specified limit the electricity company charges the penalty to the industrial consumers. APFC device reads power factor from line voltage and line current by determining the delay in the arrival of the current signal with respect to voltage signal from the function generator with high accuracy by using an internal timer. This time values are the calibrated as phase angle and corresponding power factor. Then the values are displayed in Liquid crystal display modules. Then the motherboard calculates the compensation requirement and accordingly switches on different capacitor banks. This is developed by using AVR microcontroller.


2018

Vol 3, No 3 (2018): Monitoring Of Fault Diagnosis and Detection in Industrial Motor Network Environment Using Iot

Authors:-C. M. Kalaiselvi, R.Sathiyaa, S.Sowndharya

Abstract:-The focus in most of the industries fall on the maintenance of motor by constant and regular observations of motor for fault detection. That system is totally based upon the advance technology, for early fault prediction. That is the new strategy used for maintenance of the machine early fault prediction by using the warning signal, that all used here in induction for maintaining their long life and keeps it healthy. By using continuous monitoring of induction motor, system can early know the age of the machine. Vibration based analysis technique is used for avoiding unexpected failures and for obtaining high accuracy for fault detection monitoring technique is used.

Vol 3, No 3 (2018): A Novel Approach for Intelligent Electricity System by using Matrix Converter

Author: V. Vijitha

Abstract: This proposed model provides an intelligent control of frequency variations in the distribution system due to direct tapping on the line or bypassing the meter. The existing system uses step down cycloconverter or variable frequency drive to step down the fundamental frequency from 50 Hz to 10 Hz of the distribution transformer [1] where no load could work properly and then distribute the power which thereby causes many fluctuation in frequency. Our proposed system uses matrix cycloconverter which is bidirectional and thus reduces the frequency variations in the line and thus provides a efficient use by the legal consumers. Matrix converter has an inherent bidirectional energy flow capability and the input power factor can be fully controlled. Hence this system provides an efficient way of proceedings the intelligent controller of electricity theft due to direct hooking’s or tapings on the distribution line. The proposed model has been realized and analyzed in Matlab.

Vol 3, No 2 (2018): DPFC for Enhancing Power System Stability

Authors:-R Venkata Krishna, S Mallikarjuna, Ashwini G

Abstract:-The distributed power flow-controller (DPFC) modified from UPFC for increasing system stability and reducing costs. The DPFC can be considered as a UPFC with an eliminated common dc link. The active power exchange between the shunt and series converters, which is through the common dc link in the UPFC, is now through the transmission lines at the third-harmonic frequency. The DPFC has the same control capability as the UPFC, which comprises the adjustment of the line impedance, the transmission angle, and the bus voltage. The objective of this review paper is to study principle of DPFC and analysis the performance to improve the voltage profile. Detailed simulations were carried out to illustrate the control features of these devices. 

Vol 3, No 2 (2018): Hybrid Pi-Fuzzy Controller for Performance Improvement in a DC Grid-Based Wind Power Generation System in a Microgrid

Authors: K Anil , N Narasimha Rao 

Abstract : With the advent of Renewable Energy sources DC Grid control plays a vital role. In this paper we are implementing the design of a dc grid which is depend upon the wind power generation system in the poultry farm. Therefore the control scheme which is utilized for separate controller for the inverter when the grid is connected and the islanded operation have been proposed. A model predictive control algorithm which is used for the better transient performance with respect to the change in the operation condition which is proposed for the inverter operation. Hybrid PI-Fuzzy controller is denoted as human decision making mechanism which provided the operation for the electronic system with the expert decision. Hybrid PI-Fuzzy logic controller is introduced for the fluctuations of the micro grid which are controlled with the constant regulation of power. And a separate controller have been developed for the wind turbine which is used for maintain the power to mitigate the variation error. Therefore we are comparing the controller with the Hybrid PI-Fuzzy controller. Therefore to determine the capability of the proposed micro grid which is connected and islanded from the distributed grid which is obtained by discussed

Vol 3, No 2 (2018): Neural Network-based Electricity Load Forecasting using Constructive Technique

Authors: Kazi Rafiqul Islam, Md. Shahid Iqbal, Md. Monirul Kabir

Abstract: This paper presents a new electricity load forecasting (ELF) model based on feed-forward neural network (FFNN) using the constructive technique in course of training. The vital aspect of this model is to determine the FFNN architecture automatically during training in order to forecast the electricity load. Thus, the strength of standard FFNN increases in forecasting the electricity load. Furthermore, the proposed model overcomes efficiently the existing shortcomings of FFNN to predict loads of holidays and fast load changes. We call this model as constructive approach for electricity load forecasting (CAELF) as per short term basis. In order to evaluate the performance of CAELF, the daily electricity load demand data of Spain has been used. Extensive experimental results and comparisons show that CAELF has a significant capability to forecast the electricity load compared to the other standard FFNN models.

Vol 3, No 1 (2018): Photovoltaic Based DSM Technique for Power Saving in Residential Loads

Authors: Nisha Verma, Albert John Varghese

Abstract: Demand Side Management (DSM) is associated to means of adapting the electricity demand to the electricity production, transmission, and distribution in the grid. Smart Grids and Demand Side Management hold potential increase share of energy sources to distribute energy, reduce the need for the energy, and reduce the cost of the power for customers. The core objective of DSM is to attend the load over time by saving the peaks and to transfer as much of the flexible demand as possible way from peak time into periods of lower activity. The aim of my paper is to design a conceptual model, which designs the Domains included Applications and Actors related to Demand Side Management and smart metering. This paper focuses on demand side management (DSM) of households. The paper proposes power grid enhancement DSM techniques to form a system. The two techniques are: a) advanced metering infrastructure (AMI) and b) solar photovoltaic (PV) systems installed on households. The aim of the AMI is to provide communication between the energy consumers. It brings energy awareness to households by providing them with more detailed energy consumption information which helps them manage their energy better. Integration of standalone solar PV supplements energy that households draw from the system. It reduces load catered by the grid. It can also save peak demand and hence delay need for large investment into new power stations.

Vol 3, No 1 (2018): Novel Distribution System Planning by Graph Theory Max-flow Min-Cut Algorithm with DG

Authors: Prakash Kerur, Dr. R. L. Chakrasali

Abstract: Power system operation aims to meet the electricity demand at all the locations within power network as economically and reliably as possible. Conventional power system planning operation is based on centralized utility control. Optimal planning of DG for a distribution system is a crucial factor to achieve the benefits. DG may degrade the performance of the distribution system, if not planned properly. Therefore, in this paper, attempts have been made to develop some methodologies, which will be helpful for integrating DG into the existing electric power distribution systems and maximum power flow from source to destination with max-flow min-cut algorithm. The power flow should be not more than the capacity of the distribution line, hence max-flow min-cut theorem tells us that the value of flow and the capacity of the source to sink cut are both optimal in this network. Outflow from source node is equal to inflow in sink node indicates maximum flow in the network with minimum capacity of edges. The maxflow problem and min-cut problem can be formulated by Network optimization is a special type of linear programming model. This algorithm in implemented on IEEE-5 and IEEE-14 bus system using MATLAB graph theory function to validate the results.


2017

Vol 2, No 3 (2017): An Innovative Unique Power Converter Strategy for Distributed Generation System

Authors: Kalahasthi Rajesh Babu1 , Issarapu Reveathi2

Abstract: Numerous advantages of a BLDC motor over a brushed DC motor in absence of the mechanical commutators which allows higher speeds. Having individual converters has advantages like more flexible individual control and simpler design but does not encourage functionality merging. As a result, power converter structure has been introduced as an alternative in high power and medium voltage situations using DG system. Distributed Generation (DG) has become increasingly more accepted since the demand for reliable and secure power systems with high power quality increases. This project presents the Distribution Generation system. The power flow is determined by controlling the amplitude and angle of displacement between the voltage produced by the DG and the grid voltage, i.e., the control variable is the same before and after the islanding mode occurs. The voltage control provides the capability to supply different kinds of loads to the DG system, such as linear, nonlinear, and motor, balanced, or unbalanced, even if the DG operates in the islanding mode. These kinds of controls are suitable for DGs operating in parallel as each of the DGs are connected to the grid through a distribution transformer (DT). Conversely, the other approaches introduced more effective. The operation of a distributed generation (DG) system driven by a dc-dc step-up converter and a dc-ac voltage source inverter (VSI) interfaced to BLDC drive system. The simulation results are presented by using Matlab/simulink software.

Vol 2, No 3 (2017): A Study on Hybrid Power System through Wind and Diesel Generator

Authors: Vijay Yadav, Sharad Arya, Preeti Vijay

Abstract: In this paper an active power control strategy has been proposed such that when the wind alone is not able to meet the energy requirement, without compromising the frequency a transition occurs to wind diesel manner so that the energy need is met. Then the system’s dynamic concert is compared for two cases with squirrel cage induction generator and permanent magnet induction generator. The mathematical model considered uses a STATCOM to meet the reactive power need upon sudden step change in power. The performance and the analysis is done in a easy to use MATLAB/Simulink environment

Vol 2, No 3 (2017): A Review on Meta-Heuristic Algorithm for Optimal Placement and Sizing of D.G to Reduce Losses

Authors: Gopala Reddy.K, T. Ananthapadmanabha

Abstract: In order to reduce power losses caused by high current and improve the voltage profile in the network distribution, the introduction of distributed generations also called productions decentralized in distribution network plays a prominent role. The placement and sizing of DGs is essential because wrong choice may jeopardize the system behaviour. To solve this combinatorial problem, an meta-heuristic algorithm known as artificial bee colony (ABC) algorithm is proposed in this paper. The paper illustrates the artificial bee colony (ABC) algorithms for optimal location and sizing of distributed generation in a distribution network.

Vol 2, No 2 (2017): Footstep Power Generation

Authors: Swapnil Mohod, Pooja Bhalerao, Gauri Karhe,  Vaidehi Nandurkar

Abstract: There are two types of energies i.e. conventional energy and non-conventional energy conventional energies are the source of energy i.e. fuel coal, mineral, etc is now depleting day by day .These sources are getting exhausted and are responsible for energy crisis. We have to search for an alternative method. Use of non-conventional energy is one of the effective and alternative method for this problem. The human locomotion is being wasted so we can utilize this wasted energy for the energy demand. In this project we are presenting a idea of generating electric energy by using simple human locomotion or footstep i.e non-conventional energy source. In this project we can convert mechanical energy into electrical energy by using mechanical and electrical setup. This arrangement is placed under a floor which contains rack, pinion, spring, gear mechanism and electrical equipment like battery, inverter, generator and load. When a person walk over such system the human locomotion i.e. kinetic energy is converted electric get stored which can be provided to nearby places. This project can prove beneficiary for health aspect and pollution aspect. By using this concept on a large scale, large power can be tapped out.

Vol 2, No 2 (2017): An Efficient Energy Distribution Method

Author: K. V. Jyothi Prakash

Abstract: Electricity is one of the basic requirements of human being, which is widely used in Industrial, domestic and agricultural purposes. Due to rapid industrialization and urbanization there is a great demand for electricity and to meet this increased demand, the technologies like nuclear power plants, hydro electrical power plants, solar power plants, wind power plants etc. are implemented. Because of demand for power being greater than the power generated and various failures at the power generation centers or on the distribution front etc, the continuous distribution of power to all requirements all time poses various challenges and in some cases may be it is impossible. Therefore the proper utilization and efficient distribution of power is very important and is a challenge. Here in this paper we describe a method for the efficient distribution of power along with various additional features.

Vol 2, No 2 (2017): Optimal Placement of Phasor Measurement Unit Considering Zero Injection Buses Using Genetic Algorithm

Authors: V. Thriveni .K., Dhananjay Rao

Abstract: This paper presents varied aspects of optimum Phasor measurement Unit(PMU) placement drawback. The optimum PMU placement drawback is developed to attenuate the quantity of PMUs installation subject to full network observability. Normally, the ability to system observation is applied for the optimum PMUs placement with minimum use of unit within the region of the sensible power system. By advanced tool, the method of protection and management of the ability system is taken into account with the activity of time-synchronized of the voltage and current. so as to own associate in Nursing economical placement resolution for the issue, a unique methodology is required with the optimum approach. For complete power network observability of PMU optimum placement are placement methodology is enforced to access a totally noticeable facility considering zero-injection buses, the minimum variety of needed PMUs obtained by Genetic formula is tested for IEEE-14,IEEE-30 and IEEE- 57bus.The simulation results area unit evaluated and compared with existing formula to point out the economical method of optimum PMUs placement.

Vol 2, No 1 (2017): Performance Analysis of ACO Based PID Controller in AVR System

Authors: M.S.Chavan, P.J. Yadav

Abstract: AVR plays a vital role in generating station. To maintain voltage stability of the generator the terminal voltage should remain constant. In a large interconnected system manual regulation is not feasible and therefore automatic generation and voltage regulation equipment is installed at each generator. So, Automatic voltage regulator (AVR) used to maintain a constant voltage level and it uses an electromechanical mechanism or electronic components depending on its design. The regulators must be designed in such a way that it is insensitive to very small changes; if this is not happened then the system may prone to hunting and result in excessive wear and tear in machine and control equipment. This paper consists of simulation and hardware implementation of Ant Colony Optimization algorithm based PID controller design for automatic voltage regulator. The performance of AVR system with conventional fixed gain PID controller and ACO algorithm based PID is compared in Matlab environment by measuring the settling time, peak overshoot and oscillation. The proposed system is also analyzed by hardware implementation.

Vol 2, No 1 (2017): Surge Current Protection Using Superconductor

Authors: Mayank Saxena, Shikhar Agarwal, Ritu Rajan

Abstract: The recent growth of power circuit capacities has caused fault currents to increase. Since the protection of power systems from the fault currents is very important, it is needed to develop a fault current limiter. A fault current limiter is required to assure rapid reaction to fault currents, how impedance in normal operation, and large impedance during fault conditions. A super conducting fault current limiter (SFCL) can meet these requirements superconductors, because of their sharp transition from zero resistance at normal current to finite resistance at higher current densities, are tailor-made for use in FCLs.

Vol 2, No 1 (2017): Power Quality Improvement by Using D-STATCOM

Authors: A. K. Duchakke, Vijay gangawane, Rupesh Kawade, Prerana Dehankar, Nikita Shahakar, Tejaswini Mute

Abstract: In recent years the power quality problems is a big issue in distribution system. A Power quality means maintaining the sinusoidal bus voltage at rated frequency. A power quality problem is an occurrence manifested as a nonstandard voltage, current or frequency that results in a failure or a mis-operation of end user equipments. There are different types of problems in power quality. These problems are power factor, reactive power compensation and harmonic distortion. Different types of FACT devices like as SVC, STATCOM, IPC, UPFC, TCSC, and D-STATCOM can be used to solve these types of problems. Among them D-STATCOM is very well known and can provide cost effective solution for the compensation of reactive power and unbalance loading in distribution system. D-STATCOM is capable to inject a current into the system to correct the power factor and reactive power compensation and harmonics reduction. In this paper the test model of D-STATCOM is showed in simulation to observe how D-STATCOM works. The D-STATCOM applications are mainly for sensitive loads that may be drastically affected by fluctuations in the system voltage.


2016

Vol 1, No 1 (2016): DG Placement for Maximum Loss Reduction In Radial Distribution System Using ABC Algorithm

Authors: K Rama Krishna, Mr.P.Raji Reddy, Raju Ravula

Abstract: Distributed Generation (DG) is a promising solution to many power system problems such as voltage regulation, power loss, etc. This paper presents a new methodology using a new population based meta heuristic approach namely Artificial Bee Colony algorithm(ABC) for the placement of Distributed Generators(DG) in the radial distribution systems to reduce the real power losses and to improve the voltage profile. A two-stage methodology is used for the optimal DG placement. In the first stage, single DG placement method is used to find the optimal DG locations and in the second stage, ABC algorithm is used to find the sizes of the DGs corresponding to maximum loss reduction. The proposed method is tested on standard IEEE 33-bus test system and the results are presented and compared with different approaches available in the literature. The proposed method has outperformed the other methods in terms of the quality of solution and computational efficiency.

Vol 1, No 1 (2016): Enhance the Power Flow in the Power System Network by Using UPFC Mechanism

Authors: A. Bulli Babu, S. Ravindhra

Abstract: In a power systems, power flows from the generating centre’s to the load centres. In this process many things require investigation, such as the profile of the bus voltage, flow of active power (MW) and reactive power (MVar) in transmission lines, effect of rearranging circuits and installation of regulating devices etc., for different loading conditions. As modern power system has become more large and complex, these investigations should be done with some sort of simulation of the system. Hence in order to meet power demand in a very efficient and economical way, by incorporating Unified Power Flow Controller Device (UPFC) in the transmission system and by using Congestion Management which is used in this project and it makes possible to handle practically all power flow control and transmission line compensation problems, using Solid State Controllers, which provide functional flexibility. The Unified Power Flow Controller (UPFC) is a member of Flexible AC transmission system (FACTS) device, that utilizes the synchronous voltage sources (VSC) to provide comprehensive control of traditional power flow concepts, the UPFC able to control simultaneously or selectively, all the parameters such as voltage, Impedance, phase angle that affect the power flow in a transmission line. In other words it can provide functional capabilities of controlling both the active and reactive power independently. This project aims to present a reliable method to meet the requirements by developing an N-R based load flow calculation program through which control settings of the UPFC can be determined directly. The proposed method keeps the N-R load flow algorithm intact and requires only a little modification to the Jacobian matrix in the iterative procedure. A Mat lab program has been developed to calculate the control settings parameters of the UPFC after the load flow is converged. The proposed method is tested on standard IEEE-14 bus system.


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