Abstract
Abstract Energy flow in sinusoidal systems is analyzed without problems by means of the traditional power definitions such as: apparent, active, and reactive, but these definitions are not properly applied in nonlinear loads. These loads present several distortions which are not correctly measured with the prevailing instruments designed for measuring energy and power. This is because a generalized set of power definitions is not available. In this paper, an alternative set of energy and power definitions is suggested for non-sinusoidal systems. Each definition is obtained through the analysis of power in the time domain. The proposed definitions add information to alleviate the power and energy measurement problem of the power meters, offer alternative indexes to measure the energy distribution, and allow calculations in transient and steady states. Furthermore, an experimental measurement of the proposed powers by means of a half-wave rectifier is shown.
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