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Power quality disturbance is a one the challenging issues, where many researchers are gaining the attention towards it, now a day it is very much necessary to monitor power quality disturbances for analyze and other purpose. The quantity of the data captured in present power quality monitoring system has been increasing drastically. It is difficult to store and transmission huge data. So compression...
Limited fossil fuel resources is the primary threat to the automotive industry and also greenhouse gas emissions are one of the major sources of global warming. Electric vehicles are found to be the key for reducing the emissions and fossil fuel consumption in the automobile sector, but the range anxiety is one of the primary drawbacks of these vehicles. The first part of the paper deals with the...
This paper studies the advantages of using AC-microgrids and the impact of Distributed Generators (DG's) on the main grid by studying its voltage, power flow and calculating the losses in radial as well as meshed networks. For this paper, a grid of 4 houses and 3 DG's is modelled and simulated and the results were presented and analyzed. Fault analysis is conducted on the meshed system and the inferences...
In this paper, a technique has been developed to determine harmonic distortion caused by a wind power plant(WPP) as observed from the utility grid. Instead of having to model entire network in detail, an equivalencing approach has been adopted to represent a large wind farm. Driving point impedance has also been calculated for the equivalent model. This approach is tested on a test case consisting...
Solar distillation is the rising method for converting saline water in to pure or clean water for drinking purpose. In this work, a new pyramid type solar still has been designed and fabricated with the still basin area of 1m2. To increase the productivity of the solar still Evacuated tubes are directly coupled with the lower side of the basin and black stones are sited inside the basin. The experimental...
Increasing cost of the fossil fuel have led the emphasis on the usage of renewable energy sources as an alternative source of generation. More than 70% of the Indian population resides in the villages which are deprived of power for more than 6 to 12 hours a day. For the overall growth of the economy, it is necessary that the agro based economy also contribute to the growth. It is neither feasible...
Influence of stator teeth shaping on cogging torque developed by radial flux Permanent Magnet Brushless DC motor is investigated. Stator teeth tang radius is varied to alter shape of stator teeth. Stator teeth tang radius is varied form 0 mm to 6 mm for two standard rating motors. It is analysed that peak to peak cogging torque is considerably reduced by selecting proper tooth tang radius. Peak to...
This paper demonstrates how the power flow sharing can be achieved in a hybrid power system using renewable energy sources that is supplying linear and nonlinear loads. Space Vector Pulse Width Modulation (SVPWM) is used as a control algorithm in a three-phase Voltage Source Converter (VSC) which acts as a Static Synchronous Compensator (STATCOM) for providing reactive power compensation. Voltage...
Renewable energy and its conversion to electrical power is the present theme for many research problems. Bio mass shows lot of promise as a renewable source. Gas turbine plants fuelled by bio mass is one among many alternatives available to generate electrical power. Large signal mathematical models are used by researchers to analyse and simulate the operation of gas turbine plants in solitude. Gas...
Recent trends in Rail traction industry requires high power density equipment to be mounted on the locomotives to cater to the increasing demands both for goods traffic and passenger traffic in India. At the same time, Harmonics generated by the locomotives on to the overhead line should be mitigated to increase the reliability of the safety equipment near the OHE line. Major component of Traction...
This paper explains the development of laboratory model to teach Surge Impedance Loading to the undergraduate students. Simulation software used for teaching power systems fails to give physical sense to the students. The scaled down model of transmission line is developed at the Electrical Engineering development of Amrita school of Engineering, Coimbatore. The flat voltage profile is observed in...
This paper represents the necessity, challenges and development opportunities of smart grid technology in perspective of Bangladesh. In Bangladesh, power has been one of the major concerns from a long time. Smart grid technology is the modern concept of the grid system that has self-detection and management process. In the current power system, there has been a lot of mismanagements, lot of hazardous...
This paper aims at design and development of multiple output forward converter with magnetic amplifier (Mag-amp) post regulators and voltage feed forward control for space application. Mag-amp regulates the output against any load variations and provides good load regulation. Voltage feed forward control is used to achieve good line regulation as the duty ratio varies directly as the input voltage...
The supercapacitor is currently emerging as a major energy storage device and a lot of research is focusing on improving its performance. This study tries to investigate the effects of area of the electrode on the output parameters of the supercapacitor like specific capacitance, equivalent series resistance, power density, energy density and pulse current. Rectangle and square electrodes were chosen...
Energy demand as of now is increasing tremendously. Also importing electricity is expensive from load centers which are located far away. Electricity is generated using distributed generators locally and using this electricity is more economical as to solve the increasing energy demand to a certain extent. For a complete day different sources of generation like Combined Heat Power, wind and utility...
This paper discusses the influence of Accelerating power input Power System Stabilizer (PSS) and Supplementary Modulation Controller (SMC) for Static Synchronous Series Compensator (SSSC) on the system stability of a single-machine infinite bus system. The objective of the work presented in this paper is to design a robust PSS with accelerating power input and a robust Supplementary Modulation Controller...
A Multi Level Inverter (MLI) has numerous industrial applications over a conventional two-level inverter due to its attractive features like it produces staircase output waveform with very lower distortion, it has less dv/dt stresses on switches, it operates effectively in both symmetric and asymmetric states, it performs at lower switching frequency and hence lower switching loss, etc. But, unfortunately,...
This paper presents a Hybrid Particle Swarm Optimization with Differential Perturbed Velocity with adaptive acceleration coefficient (APSO-DV) to reduce generator fuel cost in Optimal Power Flow (OPF) control with a powerful Flexible Alternating Current Transmission Systems (FACTS) device such as Unified power Flow Controller (UPFC). The APSO-DV algorithm employs a strongly coupled differential operator...
This paper deals with model predictive control (MPC) approach for a twin rotor multi-input-multi-output system (TRMS). The main objective is to stabilize beam of the TRMS with respect to pitch and yaw angles. Development of controller for TRMS is challenging because of its coupling effects between two axes and also due to its highly nonlinear characteristics. An accurate model of the system is developed...
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