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.