Industry Reports


Fault Current Contributions from Wind Plants 
by IEEE PES PSRC Joint Working Group

The  assignment of the working group was to characterize and quantify short circuit current contributions to faults from wind plants for the purposes of protective relaying and equipment rating, and to develop modeling and calculation guidelines for the same.
The safe, reliable operation of electrical power systems requires the ability to predict and model the sources of fault current, including contributions from wind powered generating plants, in order to select equipment properly rated for the required duty and to properly set protective relays for selective operation. Groups of wind turbine generators are clustered and networked to form wind plants of varying power delivery capability. Several characteristics are unique to wind plants, but the most significant characteristic to the topic of this report is the response of the wind turbine generators to faults on the power system. Wind turbine generators (WTG) must be able to tolerate rapid fluctuations in wind speed (turbulence and gusting), as well as optimize the blade tip speed ratio and thus maximize energy capture. The turbines must be capable of operating at variable speeds, rather than the traditional solid mechanically and electrically connected synchronous generator.

There are wind turbine generators of five basic types that can, in some cases with supplemental equipment, tolerate the fluctuations in the wind speed and deliver electrical power in the form that meets the requirements of the transmission system. More

Power. Flexible. Easergy.
Let?s start with organization in protection testing