This paper presents a novel MLCR-CSC-STATCOM topology, particularly suitable for the high power applications. Injection control technology, multi-level technology and zero level technology are used, which enables main bridge switch working in fundamental frequency to output continuous controllable AC current and high-quality current waveforms and meantime better resolve the absorption capacitance problems of conventional CSC without installing AC capacitor. This paper derives the mathematical model of MLCR-...