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Like conventional power plants, wind power plants must provide quality power required to ensure the stability and reliability of the power system it is connected to and to satisfy the customers connected to the same grid. Although many operational aspects affecting wind power plant operation are to be discussed, this paper focuses on power quality problems in power system due to the presence of wind...
The short circuit behavior of Type I (fixed speed) wind turbine-generators is analyzed in this paper to aid in the protection coordination of wind plants of this type. A simple network consisting of one wind turbine-generator is analyzed for two network faults: a three phase short circuit and a phase A to ground fault. Electromagnetic transient simulations and sequence network calculations are compared...
Increasing fault current contribution from wind farms into the utility network presents new engineering challenges for utility protection engineers. Traditionally, sequence component networks are used to calculate fault currents for relay settings, but there is at present uncertainty on the appropriate sequence component models of the various wind generator types for inclusion into protection calculation...
Due to the recent expansion of renewable energy applications, wind energy conversion is receiving much interest all over the world. However, output fluctuations of wind generators cause network frequency variations in power systems. This can decrease the power quality and then cause a restriction of wind farm installation, especially in an isolated network, for example, electrical power system in...
Wind electric generators (WEGs) are increasingly integrated into power systems. Impetus for their integration in North America overlaps in time with deregulation of the monopolistic business of bulk energy delivery through electric power systems. Their growth is restricted, in part by the available transmission capacity and ability of scheduling algorithms to allow their seamless integration while...
Reactive powers and currents supplied by wind generators are studied in this paper to verify new Spanish grid code requirements. Two approaches are used for that study. One approach is based on the well known Emanuel's theory included in the IEEE Standard 1459-2000. Reactive powers and currents are expressed by Emanuel for the fundamental-frequency, positive-sequence voltages and currents. Second...
Connection of wind farms to the electric network is submitted to some grid codes, which establish wind farm working conditions in presence of some transient phenomena, such as voltage dips. In this paper, Spanish grid code is used to evaluate effects of voltage dips on wind farms working. Reactive powers and currents must be watched at wind generators submitted to voltage dips, thus reactive phenomena...
With all the work done so far on the design of wind generators and their widespread use throughout the world, it could be assumed that the technology has matured and all of the engineering decisions have been made. However, this is not the case. As knowledge has increased, more questions have been raised and complications realized. This paper examines the recent development of wind turbines, identifies...
With the increased use of wind energy the power generation several Transmission System Operators (TSO) have increasing difficulties for congestion forecasting due to the unpredictable nature of the energy source. This paper proposes to enhance the congestion management using a real time supervisor. This supervisor is developed to perform automatic and dynamic re-dispatching using both wind and conventional...
All over the world, energy companies are investing in technologies to make better use of renewable energy to generate electric power. Wind energy is the renewable energy source that had a higher growing in the last decades and can be considered a hope in future based on clean and sustainable energy. The development of tools that allows operators and maintenance personnel to correlate machinery related...
Todaypsilas wind technology has enabled wind to enter the electric power mainstream. Continued technology advancement will enable cost-competitive generation of 20% of the US electrical energy from renewable wind power.
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