The evaluation of error of implementation of the parameters measurement method, based on the formation and comparison of orthogonal voltage components

The article discusses a new method for the measurement of harmonic signal parameters by their instantaneous values and information-measuring system that implements it. The method is based on the formation and comparison the orthogonal voltage components. The results of the analysis of the error of definition the parameters arising from the implementation of the method: the error of the module and angular error of phase shifter blocks that forms an additional signal. The results allow to evaluate the limits of measurement error and to identify possible areas of use of the method.