VFT Applications Between Grid Control Areas

This paper discusses various applications where VFT technology can be used as a tie between power system control areas. Its use to facilitate connections between synchronous and asynchronous systems is discussed along with its general operational characteristics in these applications. The VFT´s ability to be used as a tool for fulfilling various operational objectives, such as providing loads access to lower cost generation areas, reserve sharing, enhancing operational flexibility, grid stabilization, and paralleling of existing HVDC ties is discussed in terms of technical characteristics and typical concepts associated with the design and operation of these interconnections. Related concepts for use of the VFT system for control of both real and reactive power, integration into existing control areas operations, and inclusion in power system market operations and dispatches are also included.