Method to compensate for unbalanced loads in polyphase systems
AssigneeABB Schweiz AG
InventorsClaes Hillberg, Gerhard Linhofer
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Abstract
The method according to the invention is for compensation currents to be produced which have arbitrary phases and/or arbitrary amplitudes. To this end, a compensation unit (5) is proposed which is connected to the polyphase system via a transformer unit (4). The compensation unit (5) in this case comprises at least a switching unit (6) and an energy storage unit (7), which is connected to the transformer unit (4) via the switching unit (6).
Claims11
A method to compensate for unbalanced loads in polyphase systems, comprising a compensation unit producing compensation currents which have arbitrary phases and/or arbitrary amplitudes, wherein real power is transferred from at least one phase to at least one other phase, and wherein the compensation currents are balanced.
Dependencies are inferred from the claim text.