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ANDESCON 2012 is a knowledge-focused event to share important scientific and technical advances as well as, proposing the development, transfer and application of science and technology for local, regional and worldwide benefit. The Organizing Committee of ANDESCON 2012: "Innovation, science and society: Engineering for the benefit of humanity" invites to experts, innovators, professionals...
This paper presents a new formulation for system state estimation of passive electric distribution networks. The fundamental idea discussed here is how to obtain the state of the system at maximum demand condition using three sources of information: 1) a quasi-symmetric matrix called TRX representing network structure and topology, 2) power measurements at main feeder disconnection devices and reclosers...
This paper provides a numerical methodology to quantify the losses produced by induced currents in the metallic ducts (throats) used to enclose the bus bars connecting distribution transformers to switchgears. This calculation is important because some transformer manufacturers in Mexico don't include throats in the load losses measurement. In particular, it presents the results of simulations made...
In this work a parameter estimation method of the induction machine model based on the instantaneous impedance is presented. The proposed method is based on instantaneous voltage and current measurements during start-up of the induction motor at rated voltage. The proposed parameter estimation method uses an space vector description of the transient machine equations, referred to the stator frame...
DC/AC converters are widely used in several applications, currently the DC/AC multilevel configuration has been proposed for high and low power applications. In this paper a single-phase flying capacitor multilevel inverter is analyzed, indeed an asymmetric operation is addressed. A modulation technique is proposed to assure the proper control of the converter, it consists of modifying the carriers...
Paralleling converters is normally employed to increase power capacity in different applications, such as autonomous micro grid systems and unininterruptible power supplies. These systems share the current between the different converters, but it must be in an equalized manner, no matter different type of loads or conditions. This paper propose an alternative to operate parallel inverters, the proposal...
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