Patent ID: 11967908
Assignee: ABB SCHWEIZ AG
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 2:
3. The method of claim 1,
wherein the cost function is a quadratic function in the impulse strengths (λp,i), which are arranged into a vector of impulse strengths (Λ),
wherein the cost function comprises a quadratic term with a model matrix (V), which is multiplied at both sides by the vector of impulse strengths (Λ) and a linear term with a model vector (c) multiplied by the vector of impulse strengths (Λ), and
wherein the model matrix (V) and the model vector (c) are determined from measurements (i, vc, ig) in the converter system, the reference trajectory (x*), and the small-signal pulse pattern (ũabc(t,λp,i)) such that the cost function encodes the small-signal error.