Method of evaluating and ensuring stability of AC/DC power systems
US9136773B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Sep 10, 2012 |
| Grant date | Sep 15, 2015 |
| Priority date | — |
| Expiry date | Aug 13, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/0012
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Approximating loci of eigenvalues or characteristic gains of a return ratio matrix of a model of a multi-phase power converter circuit by the loci of the d-d and q-q elements of said synchronous frame of reference applied to said model, allows determination and assessment of stability of the circuit or forbidden operational parameters of the combination of an AC power source and a power converter at an interface thereof by application of a standard Nyquist stability criterion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.