Atmospheric Pressure

doi:10.1109/MPE.2011.942353

Atmospheric Pressure

2011-11-01

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DOI：10.1109/MPE.2011.942353

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THE MODERN ELECTRIC POWER SYSTEM constitutes a fascinating challenge in delivering reliable and inexpensive power using uncertain components in an increasingly complex world. While the components of the power system have always been uncertain and variable to some degree, the addition of wind and solar energy is increasing the need to directly manage these attributes in more sophisticated ways. Indeed, the growth of wind energy has served as a catalyst that is forcing us to develop the next generation of tools and practices for continued efficient and reliable system operations. Wind is the fuel source for wind power plants, and because of the variability and complexity of the weather that creates the wind, wind power plants show variability and uncertainty in the instantaneous power that they deliver to the grid. The impacts of variability and uncertainty can be reduced in many ways. These include larger balancing areas (BAs) that combine the output from geographically dispersed wind plants to provide a more smoothed and predictable aggregated power level and having a sufficiently flexible power system that can reliably use the wind power at close to real time. But prediction is still the critical tool for scheduling wind energy so that we can better manage the system. The technical nature of weather and wind power forecasting has been covered in past articles (see For Further Reading), so we'll discuss such things here only briefly. This article focuses on the latest trends and enhancements emerging in system operations as wind penetrations grow. We discuss technical improvements, current and pending market changes for very high levels of variable generation, the value of forecasting improvements, and the collaborative work that may lead to improved forecasting. This is work at the cutting edge, gathering the latest examples that the authors believe to be of special interest, and we expect this area to remain vibrant and dynamic for many years to come.

Atmospheric Pressure

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