On-site Under Voltage Ride Through performance tests — Assessment of ENERCON Wind Energy converters based on Hydro-Québec Transénergie requirements

Hydro-Québec Transénergie (HQT) has specific technical requirements for the connection of Wind Power Plants (WPPs). Compliance of specific WPPs with the requirements must be assessed via on-site tests that are described in a companion general validation test program. HQT has worked closely with ENERCON to ensure that the grid code could be fulfilled by its full-converter technology to be used for many projects in the province of Québec. The present paper focuses on the on-site Under Voltage Ride Through (UVRT) tests performed by ENERCON and HQT based on the related requirements. The HQT grid code and validation test program are briefly presented. Furthermore, the theoretical Fault Ride Through (FRT) performance of the ENERCON technology is explained and the testing equipment, setup and limitations are described. Moreover, a few test results are discussed. Finally, some technical issues are presented and corrective measures applied following the tests are explained.