“…With continuing changes in power systems, notably electricity market deregulation, increasing interconnection and wider use of the less predictable renewable energy sources, the need for development of STATCOMs and other FACTS devices, such as Synchronous Series Compensator (SSSC), Unified Power Flow Controller (UPFC), becomes ever more pressing. Important aspects are the selection of installation locations, the selection and optimal parameter tuning for STATCOM and other FACTS devices, to deliver high performance control of voltage and power and damp out disturbances during transient states [4][5][6]. On the other hand, world-wide interest has been drawn to Modular Multi-level Cascaded Converters (MMCC) as possible next-generation inverters for STATCOMs and many other applications [7][8][9] in medium and high voltage (11 kV up to 200 kV) power systems.…”