Challenges Associated With Assessment and Testing of Fault Ride-Through Compliance of Variable Power Generation in Australian National Electricity Market

This paper presents challenges associated with the assessment and testing of fault ride-through (FRT) compliance for intermittent power generation, in particular wind and solar generation in the Australian National Electricity Market. Examples discussed in this paper focus on wind farm applications. The same principles, however, hold true for other intermittent generation technologies such as solar generation. Two aspects of compliance are discussed, namely, adherence to technical performance requirements and accuracy of model data subsequently used for undertaking power system simulations. Analytical assessment of compliance through simulation studies and the impact of positive-sequence and detailed electromagnetic transient (EMT) models are discussed. On-site demonstration of FRT compliance through long-term monitoring and staged fault testing are presented. Results obtained from each method are compared against simulation studies and differences between measurements and simulations are discussed.