A world-first VFT installation in quebec

摘要

The variable frequency transformer (VFT) operates as a 100-MW converter, making it possible to transfer power across asynchronous system boundaries. With the installation of this VFT, Hydro-Quebec TransEnergie has increased interconnection capacity. Hydro-Quebec TransEnergie wanted to provide value to its customers with the use of this technology, and the VFT seemed to fit the transmission provider's requirements to control power flow. Even more attractive was the simple design of individual components, based on established and widely used rotating machinery technology, ensuring long-term main tainability and lower maintenance costs. Unlike traditional HVDC technology, the VFT provides "plug and play" capability to provide controlled transmission flow solutions. The VFT's minimal impact, with respect to harmonics, control interactions and effect on nearby generators, allows the installation and operation to be decoupled from other grids issues.