INVESTIGADORES
CARUGATI Ignacio
artículos
Título:
Error analysis of phase detector based on Clarke transform and arctangent function in polluted grids
Autor/es:
IGNACIO CARUGATI; CARLOS M. ORALLO; SEBASTIAN MAESTRI; PATRICIO DONATO; DANIEL O. CARRICA
Revista:
ELECTRIC POWER SYSTEMS RESEARCH
Editorial:
ELSEVIER SCIENCE SA
Referencias:
Lugar: Amsterdam; Año: 2015 vol. 127 p. 160 - 164
ISSN:
0378-7796
Resumen:
Extracting phase information from a three-phase disturbed signal is a recurrent topic in power systems. The phase detector based on the Clarke transform and the arctangent function is a widely used technique to this end. However, the nonlinear nature ofthis method can derive in an error increment in the estimated phase angle when the input signal is distorted. These errors take the form ofoscillating and constant terms and are not generally analyzed in the literature. Therefore, this work presents an error analysis of this phase detector that assesses its causes and effects. To do so, the disturbances over the estimated phase are modeled, the reduction of the phase detector performance is described, and the adverse effects produced by the absence of the pre-filter stage are discussed.
