Pole-restraining control of active front end for shore-side power supply of ships

Shore-side power supply by power-electronics systems for merchant ships as well as for cruise ships is a new issue in electric-ship technologies. Fault scenarios on-ship and within the harbour grid and the variability of the parameters of on-ship distribution require fast and robust control. Pole-restraining control is a novel control approach, taking the time-variant characteristics of power electronics fully into account. In consequence, the full physically available control capability can be used. This paper gives a short introduction of the pole-restraining control approach. A comparison to other state-of-the-art control schemes illustrates the improvements.