A New Wind Farm Essay Example

4A New Wind Farm

A New Wind Farm

Executive Summary

Achieving effective power flows in existing and new system poses as a difficulty to the power engineering fraternity. System design recommendations made by various agencies in a bid to achieve smooth transmission of power call for synchronization of output parameters with the demands. Overloading the aging transformers and transmission systems for instance is not a solution towards upgrading or even constructing new ones whenever power projects roll out. This case study utilises a project by Kyle and Weber Wind (KWW) whose new project to construct a 200MW new wind farm poses as a resource hog. The project utilises a condor conductor type with a power rating of 900 Amps across a 138-kV line whose cost implication is estimated at $290,000/km with an option to use 69-kV lines at an estimated cost of $240,000/km. Recommendations made through analytics on the power simulator indicate that indeed the synchronization of generation and transmission systems with the demand is necessary. A steady state generation also has to be maintained together with a voltage magnitude within the rated values due to the risk of losses through slacking.

Introduction

The evolution in power transmission has seen rapid changes in transmission infrastructures across various forms of power generation. The emergence of these changes has however come with its own share of costs in terms of setting up the transmission lines and enhancement accessories such as transformers. In a bid to maintain competitive power costs, efficient power transmission is mandatory. Some of the recommendations that have been made to ensure efficient power flows in three-phase require that the generation be synchronized with the demand. The bus voltages magnitudes have to be matched with the rated values for any given power transmission systems. The generators are also required to operate within very specific power limits which in this case have to be reactive. The design on the other hand should not overload the transformers and the transmission lines in any case whatsoever. For this purpose a case study of KWW which seeks to roll out a wind farm project for Metropolis Light and Power (MLP) is utilised to illustrate some of the most important factors that need to be observed while coming up with new or at least supplementary transmission systems. This article seeks to hatch a preliminary transmission planning assessment that shall be utilised by the KWW management in coming up with a least cost design.

Conclusion

Design of reliable power transmission systems requires keenness when it comes to output and demand requirements. The major recommendations made in this case of KWW’s 200MW wind farm are based on Power World Simulator analytics founded on assumptions such as base case loading consideration for each operating point, slack losses to the transmission lines, capacitors or transformation taps modification for synchronization purposes, contingency avoidance and lastly, constant system losses. The recommendations made to the KWW management include maintenance of steady state generation for satisfaction of both slack losses and demand, ensuring that the bus voltage magnitudes are maintained closed to their respective ratings, operation of the generators within their reactive power limits and lastly cost reduction by loading the transformers and transmission lines with correct loads.