Novel passivity-based controller design for STATCOM

This paper presents the design of the passivity-based control (PBC) for type 2 static synchronous compensator (STATCOM). The PBC controller, which consists of a desired control input and a new control input considering the performance of all states, are designed. PBC guarantees the exponentially stability of equilibrium point of the system. The PBC controller's the performance is compared with input-output linearization (IOL) controller's. Simulation results show that better performances of capacitive voltage and active current are achieved using PBC than IOL.