Impacts of Wind Integration on Power System Operating Costs & Security

Impacts of Wind Integration on Power System Operating Costs & Security

Paredes, J.F.

Electrical Engineering, Mathematics and Computer Science

Electrical Power Systems

2008-11-28

As electricity demand increases and fossil fuels are depleted, renewable energy technologies are on the rise in order to keep up the supply of energy. Since wind power is the technology with the most promising for large-scale implementation, it becomes important to understand what wind power brings to system operation. Wind is by nature variable and not 100% predictable, which adds new challenges to transmission systems operators (TSOs). If wind speeds are low, available wind power is also low and if wind speeds are high, available wind power may be high, as long as speeds do not exceed the turbine cut-out-speed. Any of these situations may happen, uncorrelated with load demand. Consequently, excess wind energy may at times need to be wasted, while at other times, reserve and regulation power available from conventional generation sources may need to be activated in order to make up for the shortage in wind energy. In addition, wind power may result in overloading of transmission lines. To study this, wind power variability and forecast errors are quantified, followed by a linear optimization technique appropriate to solve the economic dispatch problem for conventional generation sources, subject to transmission constraints. The developed optimization model can be used to answer such questions as wether technical limitations exist for the amount of wind power installed in a power system and whether new expansions must be done in order to solve transmission bottlenecks.

Wind Energy
Operating Costs & Security
Electrical Power Systems

http://resolver.tudelft.nl/uuid:b610de14-e905-4802-8bb1-dc0a5896e3c3

Student theses

master thesis

(c) 2008 J. F. Paredes