This paper presents the design and construction of a scaled-down arbitrary waveform power source which bases the synthesis of power signals at its output in two H converters multilevel with asymmetric sources in cascade. The aim of the power source is to mimic the disturbance-like signal for testing controls, instruments and electric devices and equipment in real-time. The electrical disturbances of interest are those related to power quality degradation and shortcircuit events in power grids. A FPGA platform is the core element of the computational bed for the PWM multilevel scheme, and other control task, useful for implementing the waveforms as required for a particular application. As final part a number of experimental results are presented.
Unit commitment (UC) has been used in the vertically integrated electric industry for scheduling units to meet the demand at minimum costs. In this paper, the authors describe a parallel implementation of the Lagrangian Relaxation Algorithm. The algorithm has been implemented in Matlab®.
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