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The 2011 International Conference on Emerging Trends in Electrical and Computer Technology - ICETECT 2011 technically cosponsored by IEEE Madras Session was held at St. Xavier's Catholic College of Engineering (SXCCE), Chunkankadai, Kanyakumari District, Tamil Nadu, India on 23rd and 24th March 2011.
The aim of this paper is to maintain the constant frequency in the utility using constant frequency unified power quality conditioner. A constant frequency unified power quality conditioning system (CF-UPQC) consists of a unified power quality conditioner (UPQC) and a Matrix converter based frequency changer. UPQC is a combination of series active and shunt active filter. The series active filter...
The following topics are dealt with: power supply quality; power systems; power system protection; power transmission and distribution; railway electrification; power apparatus; generating stations and plants; power supplies to apparatus; control of electric power systems; image processing; radio links and equipment; and logic circuits and logic design.
Faults in transmission lines are very common and it comes along with a huge penalty from the consumer as well as from the suppliers end. A fault in a system should be dealt very firmly and fast lest it would damage other accessories along the transmission line. In this paper, a single phase fault and a three phase fault has been simulated using Alternating Transient Program (ATP) and the energy content...
Transmission line protection is an important issue in power system engineering because 85-87% of power system faults are occurring in transmission lines. This paper presents a technique to detect and classify the different shunt faults on a transmission lines for quick and reliable operation of protection schemes. Discrimination among different types of faults on the transmission lines is achieved...
Transmission congestion management is one of the critical and important tasks of the System Operator (SO). In this paper, congestion relief procedure has been discussed and compared with the objective of rescheduling cost minimization and proposed objective of real power loss minimization. Congestion Management (CM) is carried out by rescheduling of real power generation based on cluster / zone method...
This paper presents a high performance, Z-source inverter topology for grid connected PV systems and also Synchronized Pulse-Width Modulation technique in single and three phase PWM inverter for Photovoltaic power generation system. Z-source inverter has buck-boost feature, which is possible because of additional shoot through state introduced in zero state of the conventional pulse width modulated...
The power system is a dynamic system and it is constantly being subjected to disturbances. It is important that these disturbances do not drive the system to unstable conditions. From the power system point of view, the excitation system of synchronous generator must contribute for the effective voltage control and enhancement of the system stability. The requirement for electric power stability is...
This paper presents a novel controller for the speed governing system of the hydro electric power plant under the effect of water hammer. The proposed controller is based on cascading of low pass filter with PID controller. The controller is very efficient in controlling the overshoot, stability and the dynamics of the speed-governing of hydro electric system supplying an isolated/grid connected load...
Polymer nanocomposites are defined as polymers in which small amounts of nano-meter size fillers are homogeneously dispersed by only several weight percentages. Addition of just a few weight percent of the nano-fillers has profound impact on the physical, chemical, mechanical and electrical properties of polymers. In this paper, PMMA - TiO2 nanocomposite is synthesized and its characteristics are...
The performance of the DSTATCOM depends on the control algorithm i.e. the extraction of the current components. So, for this, there are various control algorithms for the control of DSTATCOM block depending on various theories and strategies like phase shift control, instantaneous PQ theory, synchronous frame theory, Adaline based theory. Each of the algorithms specified have their own merits and...
The aim of our study is the optimization after restoring and reconfigure the faulted area in a distribution network after locating and isolating the faulted block. Restoration involves changing the switch status to maximize the supply to loads that are left unsupplied after fault removal. After system optimization using reconfiguration, Field Programmable Gate Array (FPGA) is used in order to control...
The utilization of renewable energy has gained momentum nowadays due to the rapid decrease in fossil fuel resources and increased environmental concerns. But the amount of power available from these natural resources will vary continuously from place to place and time to time depending on its geographical locations, terrains, altitude, climatic conditions. So the energy supplied from these sources...
Decentralized node admission is an essential and fundamental security service in mobile ad hoc networks (MANETs). It is needed to securely cope with dynamic membership and topology as well as to bootstrap other important security primitives (such as key management) and services (such as secure routing) without the assistance of any centralized trusted authority. An ideal admission technique must involve...
Remote monitoring of railway tracks and level crosses is a relevant field of study, these days. The paper analyzes the channel capacity of railway powerlines for providing the basis for development of various railway applications. The paper applies multi conductor transmission line theory to model the power lines and estimate channel capacity. The BPLC technology has underwent significant advancements...
The photovoltaic (PV) stand-alone system requires a battery charger for energy storage. This paper presents the modelling and control design of the PV charger system using Buck-Boost converter. The voltage command is determined by both the PV module maximum power point tracking (MPPT) control loop and the battery charging loop. Here the controller is designed so as to balance the power flow from PV...
Deregulation is, restructuring the rules and economic incentives that the government setup to control and drive the Electric Supply Industry (ESI). It is also called as open power market, competitive power market, vertically unbundled market etc. With the introduction of deregulation, the electric power industry needs changes in various power system operation, control and planning activities. In this...
This paper presents an energy-efficient data acquisition scheme using Bloom filter. Along with the Dynamic Voltage Scaling concept, Bloom filters can be used because of its advantage. Bloom filters have been used increasingly in networking applications, including packet classification, routing in P2P networks, string matching in Network Intrusion Detection (NID), flow rate monitoring etc.,and in wireless...
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