A Multi-DSP Based instrument for Real-Time Energy and PQ Measurements

B. D’Apice, C.Landi, A.Pelvio, N.Rignano

Abstract

The evaluation of electrical energy flows is at the base of all operations connected to the commercial transactions in energy market. Typically, the measurement apparatuses are made and characterized to work in ideal sinusoidal conditions. But, with increasing diffusion of power electronic devices, the typical characteristics of power network are far from sinusoidal ones. With the aim to link the cost of energy to the level of power quality, it is necessary to determine the energy but also the indexes which characterize the power quality. In this paper the design and implementation of a multi processor measuring instrument based on multiple digital signal processors (DSPs) is discussed. This system can embody a number of special signal processor and analog I/O modules, specifically designed to obtain the flexibility and scalability to meet the needs of real-time measurement applications and low cost. After a prototype description, a part of analysis algorithm is reported. The paper is completed by preliminary results of metrological characterization.

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IMEKO-TC4-2007-160.pdf

DOI

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IMEKO TC

TC4 - Measurement of Electrical Quantities

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