Effect of Facts Devices SSSC and STATCOM POD Controller

Abstract

When integrating to the power system, large wind farms pose stability and control issues. A thorough study is required to identify the potential problems and to develop measures to mitigate them. Although integration of high levels of wind power into an existing transmission system does not require a major redesign, it necessitates additional control and compensating equipment to enable recovery from severe system disturbances.

This thesis investigates the use of a Static Synchronous Compensator (STATCOM) and SSSC along with wind farms for the purpose of stabilizing the grid voltage after grid-side disturbances such as a three phase short circuit fault, temporary trip of a wind turbine and sudden load changes. The DC voltage at individual wind turbine (WT) inverters is also stabilized to facilitate continuous operation of wind turbines during disturbances.