Final Technical Report - WILMAR Wind Power Integration in ...

production will be analysed, as well as the issues of achieving an hour-per-hour
power balance in the electricity system. Also the long-term issue of securing the
energy balance irrespective of the variation in the wind power and hydro power
production from year to year will be analysed.
3. To analyse the performance of different integration measures in a liberalised
electricity system. Both the possibilities for integrating fluctuating power
production by optimising the interaction of the existing units in a given
electricity system, the possibilities lying in power exchange between regions,
and the performance of dedicated integration technologies like electricity
storages will be evaluated. Special attention will be given to interactions
between the integration measures and the organisation of the power pool.
4. To quantify the costs connected to the integration of large shares of wind power
in a liberalised electricity system, i.e. to answer the question what does it cost to
integrate a certain amount of wind power in a liberalised energy system?
3 Scientific and technical description of the
results
The description of the scientific and technical results achieved in the project falls
naturally into four groups:
1. The work taking place in WP5 related to system stability issues, which can be
further subdivided into model development and analysis related to frequency
stability and usage of primary and secondary reserves, small-signal stability and
transient stability. Furthermore a method for using results from the Wilmar
Planning tool as input data to the WP5 simulations has been established.
2. The work involved in the development and usage of the Wilmar Planning tool,
i.e. work taking place in WP2, WP3, WP4, WP6 and WP8. This work can be
further subdivided into development of the Joint Market model, development of
the Long-term model, construction of scenario trees for wind power production
forecasts, collection and storage of input data, design of output database, design
of user shell, analysis of wind power integration issues with the Wilmar
Planning tool.
3. Analysis of the distribution of integration costs in WP7.
4. Formulation of recommendations regarding organization of electricity markets
and power pools to enable cost effective integration of wind power (WP9).
3.1 Analysis of system stability
3.1.1 Objectives and overview of approaches taken
The main objective of the WP5 work in the WILMAR project has been to:
1. Identify and quantify potential system stability problems in particular related to
large-scale integration of intermittent renewable energy generation into the
power system.
2. Identify and evaluate various solutions to eliminate/reduce the problems.