A Comparative Evaluation of Series Power-Flow Controllers Using DC- and AC-Link Converters

This paper presents a comparative evaluation of direct AC-AC converters and multipulse voltage source DC-AC converters for providing series compensation of transmission systems. This paper provides a detailed discussion of power circuit design issues related to various performance considerations for both approaches. A benchmark case study is used to demonstrate the operation and performance of both designs in terms of steady-state and dynamic performance indices. It is shown through detailed computer simulations that both approaches are competitive with respect to each other in terms of their functional performance.