Is Westernisation Cultural Degradation or Enrichment

​The main purpose of the wind energy is to create energy source which is pollution free and come with a reasonable price. The wind energy used in wind turbines are increasing their demand and becoming popular in the green energy world. Since the rebirth or rapid growth of wind energy took place from early 1980. The growth of the industry has been more than expectations. As all the good things the wind energy poses certain negative impacts of having high maintainer cost. Repair and data collection should be monitored regularly of the turbine to get the idea of placing a new wind energy plant or to maintain the old one. This paper explains the modeling of Wind Energy Conversion Systems and their technologies which is used for the generation of wind power and control strategies of the conversion system.

The DVR is one of the most common and effective solutions for protecting critical load against voltage sags [10] [11]. The DVR is a power electronic device used to inject three-phase voltages in series and in synchronism with the distribution feeder voltages in order to compensate for voltage sags. Moreover, it can be efficiently used to augment the fault ride through capability in wind applications. Detection time is an important factor in the voltage restitution process. Fast detection

Optimum use of renewable source of energy like Wind can be considered as one of the answer to rapid increase in the demand of energy worldwide. Using the current technological advancements it is commercially viable to use the wind power as a source of energy for small scale to large scale industry.All kind of renewable source are highly dependent on environmental conditions and can not be controlled fully. Due to this inherent characteristics, power generation may vary. In the

 In a deregulated market there is a need for a new kind of voltage and power flow control

At present there are several reduction or mitigation methods in use to reduce the distortion of the voltage and current from non-linear distribution loads such as variable frequency drives (VFDs). Description of each method with relative advantages and disadvantages are as follows.

In the grid new renewable resources are added to extract more power. This adds more power quality issues to grid connection. 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 equipment. This paper investigates the use of a static synchronous compensator (STATCOM) is connected at a point of common coupling with Battery Energy Storage System(BESS)to overcome of a power quality issues of a wind farm equipped with variable speed wind turbines driving Double – Fed Induction Generators (DFIG). A physical control scheme, including four control loops: ac voltage, dc voltage, ac active current and ac reactive current controllers, is pre-specified for the STATCOM. A synthetic algorithm is proposed to embed these physical control loops in the output feedback path. The simulation results demonstrated that under various system disturbances, the proposed mode decoupling STATCOM is effective in regulating IG terminal voltage.

Abstract— The purpose of this paper is to analyse the impact of three different Flexible Alternating Current Transmission System (FACTS) devices on a power system and to analyse their capabilities with respect to various disturbances. FACTS devices discussed in this paper are Static Var Compensator (SVC), Thyristor Controlled Series Capacitor (TCSC) and Unified Power Flow Controller (UPFC). The impact on power-flow and Power Oscillation Damping due to these devices is analysed in detail. Simulations based on different choices of Power Oscillation Damping (POD) signal are simulated for small and large disturbance incurred on the system. Effect of Linear (residue method) and Non-linear (CLF) based POD signals on the system is shown in the paper. Impact of each device is considered separately followed by a comparative study between them. All simulations are done with the help of SIMPOW© and all figures are plotted in MATLAB©.

The improvement of the quality of the energy on the electrical distribution networks becomes today an important stake for the managers of the networks as for the operators of the electrical energy. In normal operation, the quality of the

I. INTRODUCTION: The power system is an interconnection of generating units to load centres through high voltage electric transmission lines and in general is mechanically controlled. It can be divided into three subsystems: generation, transmission and distribution subsystems. In order to provide cheaper electricity the

A power station consists of several generating stations and transmissions and distribution networks interconnect consumers. The purpose of any power system is to generate electrical energy in sufficient quantities at the best-suited locations, to transmit it to various load centres and then distribute to various consumers and to maintain the quality and reliability of transmission at an economic price.

Abstract—This paper describes the theory and simulation by mat lab of flexible Alternative Current Transmission Systems (FACTS) devices used in the disturbed power systems. One of these devices, Unified Power Flow Controller (UPFC)

Problem formulation: To achieve consumer satisfaction in power supply and harness renewable energy, microgrids design and control are essential issues for reliable operation. As the characteristics of the distribution network and high volume power electronics penetration into the network are significantly different from the conventional power system, several issues are raised. Some of the issues, which are a promised field for future research, are described shortly below:

ABSTRACT: -- In this a fuzzy logic control technique has been proposed for power quality improvement by using UPQC The UPQC is controlled to regulate the WF terminal voltage, and to mitigate voltage fluctuations at the point of common coupling (PCC), caused by system load changes and pulsating WF generated power, respectively. In order to reduce the voltage fluctuations that may cause “flicker”, and improve WF terminal voltage regulation, several solutions have been posed. The voltage regulation at WF terminal is conducted using the UPQC series converter, by voltage injection “in phase” with PCC voltage. On the other hand, the shunt converter is used to filter the WF generated power to prevent voltage fluctuations, requiring active and reactive power handling capability. The sharing of active power between converters is managed through the common DC link. A customized internal fuzzy logic control scheme of the UPQC device was developed to regulate the voltage in the WF terminals, and to mitigate voltage fluctuations at grid side. Simulation results show the effectiveness of the proposed compensation strategy for the enhancement of Power Quality.

Index Terms – Unified Power Quality Conditioner, Active Power Filter, hysteresis control, voltage and current unbalance.

Grid substation is particularly identified as the station for generation of power through the incoming transmission line. The substation is responsible for delivering electrical power via the feeders and the station controls power for separate routers. The substation forms important part of transmission and power distribution over the power system architecture. However, this project involves maintaining and operating the substations with their individual characteristics. Moreover, the main functions of power substation are to receive the transmitted energy from the generating stations with higher voltage reducing it. The stations provide switching substations within different connections for different transmission lines; converts sub-stations either converting AC to DC for higher to lower frequency.