Performance enhancement of modular multi-level converters using a direct phase current control technique

Based on STATCOM direct current full‐order terminal sliding mode control

“…Based on the theory of instantaneous reactive power [8], the method of detecting reactive power of three‐phase circuit can be obtained by calculating p and q as the starting point, and it is called p–q operation. This operation mode is applicable to the grid voltage waveform without distortion, the power system voltage distortion is relative.…”