Method and controller for controlling a power converter in a power transmission network

Abstract

There is provided a method, and a controller, for controlling a number of submodules in a valve of a power converter, the method including: determining, by a controller, a first switching time for a first submodule of the submodules; determining, by the controller, a second switching time for a second submodule of the submodules, wherein the first switching time differs from the second switching time by a time difference; wherein the time difference is based on a property of resonance in the power converter, wherein the resonance in the power converter is that caused by switching at least one submodule of the submodules in the valve; and providing, by the controller, one or more switching commands to the valve to cause the first submodule to switch at the first switching time and the second submodule to switch at the second switching time.

Dependencies are inferred from the claim text.