Classification and Compensation of DC Offset Error and Scale Error in Resolver Signals
| Autor: | Won Lee, Jang-Mok Kim, Won-Sang Im, Jong-Joo Moon, June-Ho Park |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Transient state
Digital signal processor Engineering business.industry 020208 electrical & electronic engineering 020302 automobile design & engineering 02 engineering and technology Compensation (engineering) Quadrature (mathematics) Unit circle 0203 mechanical engineering Control and Systems Engineering Control theory Resolver 0202 electrical engineering electronic engineering information engineering Transient response Electrical and Electronic Engineering business DC bias |
| Zdroj: | Journal of Power Electronics. 16:1190-1199 |
| ISSN: | 1598-2092 |
| DOI: | 10.6113/jpe.2016.16.3.1190 |
| Popis: | This study proposes a classification and compensation algorithm of two non-ideal output signals of a resolver to reduce position errors. Practically, a resolver generates position errors because of amplitude imbalance and quadrature imperfection between the two output signals of the resolver. In this study, a digital signal processor system based on a resolver-to-digital converter is used to reconstruct the two output signals of the resolver. The two output signals, “sin” and “cos,” can be represented by a unit circle on the xy-plot. The classification and compensation of the errors can be obtained by using the radius and area of the circle made by the resolver signals. The method computes the integration of the areas made by the two resolver output signals to classify and compensate the error. This system cannot be applied during transient response given that the area integration during the transient state causes an error in the proposed method. The proposed method does not need any additional hardware. The experimental results verify the effectiveness of the proposed algorithm. |
| Databáze: | OpenAIRE |
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