Patent ID: 9350270
Filing Date: 2016-05-24
CPC Classification: H02J,H02M,Y02B,Y02E

Claim Text:
1. A driving method for a modular multi-level converter that converts an alternating current (AC) into a direct current (DC) or converts a DC into an AC using the modular multi-level converter with a plurality of submodules stacked to deliver power in an AC system, the modular multi-level converter comprising a plurality of valves independently driven and an upper valve that is one of valve branches comprising the plurality of valves, the driving method comprising: inputting a current reference value (i* measuring a current value (i calculating an error value (err measuring a DC link voltage value (V measuring an AC-grid voltage value (E calculating a voltage reference value (u* wherein the inputting of the current reference value (i* and i*