Xs 0

Here, each generator in a power system to be studied can be represented as the aforementioned form in accordance with the dynamic model of itself. For a power system consisting of n generators (including wind farm) with m state variables, by eliminating Airy, we can get the Jacobian matrices of the whole system A, B, C and D (Wang et al., 2008)as given in following

L GJmxm

L G Jmx2 N


ygg dg ygl ylg yll .

C, n J2nxm

Where, YGG and YLL are the self-admittance matrices of generator nodes and non-generator nodes; YLG and YGL are the mutual admittance matrices between them.

Finally, the corresponding state matrix can be given in following:

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Renewable Energy 101

Renewable Energy 101

Renewable energy is energy that is generated from sunlight, rain, tides, geothermal heat and wind. These sources are naturally and constantly replenished, which is why they are deemed as renewable. The usage of renewable energy sources is very important when considering the sustainability of the existing energy usage of the world. While there is currently an abundance of non-renewable energy sources, such as nuclear fuels, these energy sources are depleting. In addition to being a non-renewable supply, the non-renewable energy sources release emissions into the air, which has an adverse effect on the environment.

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