I’m wondering whether a capacitor compensation is an advisable option to improve the voltage security of a transmission system with continous power demand and supply fluctuations, especially for a radial system, with both dispersed synchronous generators and wind power plants. As we all know, the intermittent wind, which is the source of power for a wind farm, also produce an intermittent real and reactive power generation in the system. This in turn, will cause a voltage fluctuation. But since, a capacitor can produce reactive power to mitigate the inadequacy of reactive power generated by the wind farm during slow wind input; I’m just wondering whether it is advisable to install a significant amount of capacitor compensation. Of course, the switching will be automatic, as a function of the wind farm reactive power output. As a safeguard against voltage collapse, I’m sure it will work but on stability’s point of view, as far as I know, capacitor has some negative impact to the system during sudden changes due to surges, fault, and sudden loss of load and generation. I think, I have to make a research on this.

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