Luis Adolfo Ordaz-Padilla, R. Peña-Gallardo, J. Morales-Saldaña, G. Gutiérrez-Urueta
{"title":"Uncertainty modeling of a PSS3B Power System Stabilizer","authors":"Luis Adolfo Ordaz-Padilla, R. Peña-Gallardo, J. Morales-Saldaña, G. Gutiérrez-Urueta","doi":"10.1109/ROPEC.2016.7830605","DOIUrl":"https://doi.org/10.1109/ROPEC.2016.7830605","url":null,"abstract":"Power systems are dynamic systems subject to disturbances, which can lead to unstable system operating conditions. For that, the Power System Stabilizer (PSS), which it is a complementary excitation controller, is used for damping electromechanical oscillations present in the power system, ensuring stability. In this paper, a robust stability test is proposed for the PSS3B stabilizer using an unstructured modeling. The limits of stability of the PSS3B stabilizer are found using additive uncertainty for a Single-Input Multiple-Output (SIMO) model. The proposed test is explained and is validated through simulations.","PeriodicalId":166098,"journal":{"name":"2016 IEEE International Autumn Meeting on Power, Electronics and Computing (ROPEC)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130301703","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"On Korobov's admissible maximum principle","authors":"A. E. Choque-Rivero, Pedro Luis Cástulo Cruz","doi":"10.1109/ROPEC.2016.7830634","DOIUrl":"https://doi.org/10.1109/ROPEC.2016.7830634","url":null,"abstract":"Based on the controllability function method a family of bang-bang controls satisfying Korobov's admissible maximum principle (KAMP) for the Brunovsky control system is given. By using the resultant of two polynomials the switching surface corresponding to the Pontryagin maximum principle (PMP) as well as the KAMP for control system of dimension 2 are attained. A conjecture of switching surfaces of the PMP and KAMP for the Brunovsky system of dimension 3 is presented","PeriodicalId":166098,"journal":{"name":"2016 IEEE International Autumn Meeting on Power, Electronics and Computing (ROPEC)","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121142050","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
J. Calderón, I. Juarez, J. Anzurez, D. Núñez, L. Márquez
{"title":"Analysis and synthesis Peaucellier mechanism","authors":"J. Calderón, I. Juarez, J. Anzurez, D. Núñez, L. Márquez","doi":"10.1109/ROPEC.2016.7830579","DOIUrl":"https://doi.org/10.1109/ROPEC.2016.7830579","url":null,"abstract":"A straight line motion is a common application in engineering design and manufacture. The Peaucellier mechanism generates exact straight lines, meeting some restrictions among their links dimensions and the input angle. The mechanism has eight links, but due to those initial restrictions, only requires to find relations among three of its eight links and rotation angle. This paper explains the process employed to find those relations using mechanism singular configurations, used to determine its links operational ranges, maximum displacement and rotation angle. Firstly, two computer programs were developed taking in account the equations obtained from the kinematic analysis. One of them simulates the mechanism motion and the other one locates every point on the straight line. Secondly, all data are analyzed and tested ensuring that the mechanism works within its limits. Simultaneously, another kinematic analysis was made to find the relationship between the maximum displacement and the link lengths for a particular case.","PeriodicalId":166098,"journal":{"name":"2016 IEEE International Autumn Meeting on Power, Electronics and Computing (ROPEC)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121361555","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Power plant fault monitoring using Recursive Principal Component Analysis RPCA","authors":"Alberto Sánchez, Mauricio Redrobán, Omar Aguirre","doi":"10.1109/ROPEC.2016.7830609","DOIUrl":"https://doi.org/10.1109/ROPEC.2016.7830609","url":null,"abstract":"Recursive Principal Components Analysis is explored as a method to identify and classify fault sources in a 12MW steam dual fuel power plant. The algorithm assessment is performed off-line by using data of relevant plant wide-information. A simple contributions matrix based in normalized data is proposed to diagnose plant faults. Results indicate it is possible to detect, classify and possibly even predict sources of plant failure.","PeriodicalId":166098,"journal":{"name":"2016 IEEE International Autumn Meeting on Power, Electronics and Computing (ROPEC)","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116404207","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jose de Jesus Guerrero-Turrubiates, Sergio Ledesma, Sheila Esmeralda González-Reyna, G. Avina-Cervantes, Elisee Ilunga-Mbuyamba
{"title":"Guitar audio signal classification by collapsed Pitch Class Profile","authors":"Jose de Jesus Guerrero-Turrubiates, Sergio Ledesma, Sheila Esmeralda González-Reyna, G. Avina-Cervantes, Elisee Ilunga-Mbuyamba","doi":"10.1109/ROPEC.2016.7830637","DOIUrl":"https://doi.org/10.1109/ROPEC.2016.7830637","url":null,"abstract":"Guitar audio signal classification has its main application in chord transcription and guitar tutoring systems. This paper proposes a method to classify chords from an electric guitar. The method performs Wavelet Decomposition in order to split the signal in approximation coefficients and details, and then, those approximation coefficients below a threshold are removed. This filtered signal is reconstructed to apply Constant-Q transform, resulting in five octave length signal spectrum. The aforementioned octaves are further merged to a single one, and compared to prune the data. Next, the frequency bins with highest magnitude remain. Finally, the signal is passed through a classification step to perform chord recognition. Our proposed method outperforms some state of the art methods, with a simpler approach.","PeriodicalId":166098,"journal":{"name":"2016 IEEE International Autumn Meeting on Power, Electronics and Computing (ROPEC)","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121786743","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
J. Flores, F. Calderón, J. R. González, J. Ortiz, Rodrigo Lopez Farias
{"title":"Comparison of time series forecasting techniques with respect to tolerance to noise","authors":"J. Flores, F. Calderón, J. R. González, J. Ortiz, Rodrigo Lopez Farias","doi":"10.1109/ROPEC.2016.7830618","DOIUrl":"https://doi.org/10.1109/ROPEC.2016.7830618","url":null,"abstract":"Noise is ubiquitous in the production of time series; we cannot assume that our source data is clean, data is always (most of the time) contaminated with noise. Noise may come from different sources: measuring devices, transmission means, etc. This article presents an analysis and comparison of how the presence of noise affects different forecasting techniques. Since chaotic time series are the most difficult to predict, we base our study on this kind of time series. Furthermore, there exist several small mathematical models that exhibit chaotic behavior. We can produce clean data by integrating those models over time. We then add noise at different levels of Noise to Signal Ratios, and measure the performance of the models produced by different forecasting techniques. The forecasting techniques included in this comparison are Nearest Neighbors, Artificial Neural Networks, ARIMA, Fuzzy Neural Networks, and Nearest Neighbors combined with Differential Evolution. Among all of them, the technique that performs better and is less affected by noise is Nearest Neighbors combined with Differential Evolution.","PeriodicalId":166098,"journal":{"name":"2016 IEEE International Autumn Meeting on Power, Electronics and Computing (ROPEC)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125234547","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Trixel Indexer using B-Trees based on a random access file","authors":"Bryan E. Martínez, J. M. Valencia, Jaime Cerda","doi":"10.1109/ROPEC.2016.7830628","DOIUrl":"https://doi.org/10.1109/ROPEC.2016.7830628","url":null,"abstract":"Indexers are software tools to help complete words, phrases, or obtain text or multimedia files such as pictures, audio, videos, etc. in a quick way. The goal of indexing is to reduce the cost of file recovery, by reducing the number of I/O operations to the hard disk. In this paper a different common indexing approach is proposed to this end using references to geospatial positions, i.e. points located on the surface of the earth sphere. With that relationship between the Hierarchical Triangular Mesh algorithm is establish, and the system of latitude-longitude coordinates for indexing the geospatial parameters used by indexers today. The indexer implemented uses a B-Tree as search engine, where each node has internally another index to generate the reference to files that are stored on the server side, which database used is a random access file. Finally, some examples are shown, how the set of trixels is obtained from a file indexing is also expanding the random access file is displayed when it approaches its limit defined in bytes.","PeriodicalId":166098,"journal":{"name":"2016 IEEE International Autumn Meeting on Power, Electronics and Computing (ROPEC)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125489750","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
J. R. Razo-Hernandez, M. Valtierra-Rodríguez, David Granados Lieberman, J. Amezquita-Sanchez, L. A. Morales-Hernández, A. Dominguez-Gonzalez
{"title":"IRIG-B decoder based on FPGA for synchronization in PMUs by considering different input formats","authors":"J. R. Razo-Hernandez, M. Valtierra-Rodríguez, David Granados Lieberman, J. Amezquita-Sanchez, L. A. Morales-Hernández, A. Dominguez-Gonzalez","doi":"10.1109/ROPEC.2016.7830639","DOIUrl":"https://doi.org/10.1109/ROPEC.2016.7830639","url":null,"abstract":"Time synchronization (TS) represents an important necessity for many industries in fields such as communications, manufacturing, and power systems related to electrical networks, microgrids, and renewable energies, among others, because it can ensure that cooperating processes or systems can interoperate correctly; further, the scheduling of specific tasks through a timestamp can be done. Among different synchronization protocols, the inter-range instrumentation group (IRIG)-B time code has become one of the most employed in real-time information transmission systems because of its accuracy, robustness, and simplicity. In this paper, a field programmable gate array (FPGA)-based IRIG-B decoder is presented. The FPGA used is a Cyclone IV EP4CE115F29; yet, the proposed hardware implementation has a vendor independency. On the other hand, the IRIG-B output is provided by a SEL-2401 Satellite-Synchronized Clock. Results show that the proposal can provide a reliable and accurate time source using the IRIG-B time code. Regarding the FPGA, a low resource usage of the chip is obtained; besides, thanks to its high capabilities of integration and parallelism, a widely number of applications can be incorporated.","PeriodicalId":166098,"journal":{"name":"2016 IEEE International Autumn Meeting on Power, Electronics and Computing (ROPEC)","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132260820","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"XBee distance measurement through the log normal shadowing model","authors":"Enrique Sánchez Gutiérrez, Alejandro Cervantes Herrera, Guillermo Ramírez Prado","doi":"10.1109/ROPEC.2016.7830624","DOIUrl":"https://doi.org/10.1109/ROPEC.2016.7830624","url":null,"abstract":"This paper presents a full approach to outcomes due to the measurement of distance between two points in space, taking as reference XBee signal's (radio waves) attenuation as they travel from point A to B. XBee modules are able to communicate with each other, creating networks which consist of a coordinator, routers and end devices; allowing information flow across the network members. As bits voyage, attenuation is readable, which opens a door to the possibility of creating a positioning system.","PeriodicalId":166098,"journal":{"name":"2016 IEEE International Autumn Meeting on Power, Electronics and Computing (ROPEC)","volume":"35 5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130925035","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Alejandra Guerrón, D. Benítez, S. Zapata, D. Augot
{"title":"Image processing algorithm for improving the identification of patterns on Diptera wings","authors":"Alejandra Guerrón, D. Benítez, S. Zapata, D. Augot","doi":"10.1109/ROPEC.2016.7830519","DOIUrl":"https://doi.org/10.1109/ROPEC.2016.7830519","url":null,"abstract":"This paper presents an image processing algorithm to highlight important features from Diptera wings, as a first step towards the development of an automated analysis tool for the identification, at a species level, of certain genres of Diptera based on their wings morphological characteristics. The present algorithm includes: patterns, landmarks, and spot cells, identification through filters, edge and round geometries detectors as well as their respective centers and radii. The aim was to improve the usually manual Diptera identification task by stressing on the most important features of the wings and use this as a training tool for non-experienced users.","PeriodicalId":166098,"journal":{"name":"2016 IEEE International Autumn Meeting on Power, Electronics and Computing (ROPEC)","volume":"460 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115867960","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}