Pub Date : 2017-05-01DOI: 10.1109/PEPQA.2017.7981660
Cristian Dimas, David F. Celeita, G. Ramos
This paper presents the design, implementation and validation of a low coast computational tool, capable of reproducing harmonic signals extracted from a distribution system simulation in real-time. The proposed methodology allows to simulate in real time, signals distorted by harmonics of different frequencies (up to the 15th harmonic). After the design and implementation of this interface, a correct validation of the first case of IEEE-519 model is presented. Several comparative scenarios are presented to validate the performance of this tool in real-time. Further applications could interact with power quality equipment with hardware-in-the-loop techniques to interact within a real-time simulation environment.
{"title":"Simulation interface to reproduce signals with harmonic distortion of distribution systems in real-time","authors":"Cristian Dimas, David F. Celeita, G. Ramos","doi":"10.1109/PEPQA.2017.7981660","DOIUrl":"https://doi.org/10.1109/PEPQA.2017.7981660","url":null,"abstract":"This paper presents the design, implementation and validation of a low coast computational tool, capable of reproducing harmonic signals extracted from a distribution system simulation in real-time. The proposed methodology allows to simulate in real time, signals distorted by harmonics of different frequencies (up to the 15th harmonic). After the design and implementation of this interface, a correct validation of the first case of IEEE-519 model is presented. Several comparative scenarios are presented to validate the performance of this tool in real-time. Further applications could interact with power quality equipment with hardware-in-the-loop techniques to interact within a real-time simulation environment.","PeriodicalId":256426,"journal":{"name":"2017 IEEE Workshop on Power Electronics and Power Quality Applications (PEPQA)","volume":"14 7","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113968371","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}
Pub Date : 2017-05-01DOI: 10.1109/PEPQA.2017.7981635
O. López-Santos, Angie Barbosa-Escobar, G. García
This paper proposes the modeling of the single-phase full-bridge inverter as a linear high order system integrating both the input voltage and load variations as disturbances. The model considers the output voltage to duty cycle transfer function (TF) as the plant of the control system when the converter operates using constant frequency Pulse Width Modulation (PWM). A simple nested loop controller is proposed including two Proportional-Integral compensators which ensure a minimum deviation of the desired Root Mean Square (RMS) value and a reduced Total Harmonic Distortion (THD) in the output voltage despite of the harmonic or reactive content of the power load. Both the model and the correct operation of the control system were validated by means of simulation results using resistive, resistive-inductive and nonlinear loads for different power levels demonstrating its advantageous characteristics.
{"title":"A robust multi-loop linear controller for transformer-based single-phase PWM inverter","authors":"O. López-Santos, Angie Barbosa-Escobar, G. García","doi":"10.1109/PEPQA.2017.7981635","DOIUrl":"https://doi.org/10.1109/PEPQA.2017.7981635","url":null,"abstract":"This paper proposes the modeling of the single-phase full-bridge inverter as a linear high order system integrating both the input voltage and load variations as disturbances. The model considers the output voltage to duty cycle transfer function (TF) as the plant of the control system when the converter operates using constant frequency Pulse Width Modulation (PWM). A simple nested loop controller is proposed including two Proportional-Integral compensators which ensure a minimum deviation of the desired Root Mean Square (RMS) value and a reduced Total Harmonic Distortion (THD) in the output voltage despite of the harmonic or reactive content of the power load. Both the model and the correct operation of the control system were validated by means of simulation results using resistive, resistive-inductive and nonlinear loads for different power levels demonstrating its advantageous characteristics.","PeriodicalId":256426,"journal":{"name":"2017 IEEE Workshop on Power Electronics and Power Quality Applications (PEPQA)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125019001","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}
Pub Date : 2017-05-01DOI: 10.1109/PEPQA.2017.7981652
J. A. Ocampo-Wilches, A. Ustariz-Farfán, E. Cano-Plata
This paper presents the simulation and modeling process of an over-current protection scheme with pre-established configurations and centralized control of such configurations. Consequently, it was necessary to classify, characterize and parameterize the different protection schemas proposed in the related literature. In addition, a digital relay protection adaptation and a centralized decision scheme are proposed. Finally, the microgrid model characteristics and its implementation in MATLAB/SIMULINK, with their respective results, are presented.
{"title":"Modeling of a centralized microgrid protection scheme","authors":"J. A. Ocampo-Wilches, A. Ustariz-Farfán, E. Cano-Plata","doi":"10.1109/PEPQA.2017.7981652","DOIUrl":"https://doi.org/10.1109/PEPQA.2017.7981652","url":null,"abstract":"This paper presents the simulation and modeling process of an over-current protection scheme with pre-established configurations and centralized control of such configurations. Consequently, it was necessary to classify, characterize and parameterize the different protection schemas proposed in the related literature. In addition, a digital relay protection adaptation and a centralized decision scheme are proposed. Finally, the microgrid model characteristics and its implementation in MATLAB/SIMULINK, with their respective results, are presented.","PeriodicalId":256426,"journal":{"name":"2017 IEEE Workshop on Power Electronics and Power Quality Applications (PEPQA)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127173949","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}
Pub Date : 2017-05-01DOI: 10.1109/PEPQA.2017.7981662
David Angel-Rojas, Dhamian Pérez-Barbosa, J. Gonzalez-Llorente, I. Acero-Niño
The nanosatellites require a power conditioning unit (PCU), which is responsible of the management and administration of the power used by different subsystems of the satellite. It is necessary carry out simulations that verify the performance of this unit given the conditions that arise during the operation of the mission. A PCU was designed based on components commercial off the shelf (COTS) through the evaluation of different configurations and the operation of each one was verified through simulations. The analysis and design of the evaluated configurations are presented, which show the operation of the algorithm of maximum power point tracking, charge regulation in the battery, power conditioning buses and the protection system against overcurrent peaks. According to the results, the propose designs meet the power requirements of the satellite and will be validated experimentally.
{"title":"Analysis and design of the power conditioning unit of a nanosatellite","authors":"David Angel-Rojas, Dhamian Pérez-Barbosa, J. Gonzalez-Llorente, I. Acero-Niño","doi":"10.1109/PEPQA.2017.7981662","DOIUrl":"https://doi.org/10.1109/PEPQA.2017.7981662","url":null,"abstract":"The nanosatellites require a power conditioning unit (PCU), which is responsible of the management and administration of the power used by different subsystems of the satellite. It is necessary carry out simulations that verify the performance of this unit given the conditions that arise during the operation of the mission. A PCU was designed based on components commercial off the shelf (COTS) through the evaluation of different configurations and the operation of each one was verified through simulations. The analysis and design of the evaluated configurations are presented, which show the operation of the algorithm of maximum power point tracking, charge regulation in the battery, power conditioning buses and the protection system against overcurrent peaks. According to the results, the propose designs meet the power requirements of the satellite and will be validated experimentally.","PeriodicalId":256426,"journal":{"name":"2017 IEEE Workshop on Power Electronics and Power Quality Applications (PEPQA)","volume":"100 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127673023","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}
Pub Date : 2017-05-01DOI: 10.1109/PEPQA.2017.7981674
V. Quintero-Molina, A. Pavas, Miguel Romero-L
The conventional structure of distribution grids has been changing due to the inclusion of distributed generation (DG) near to consumption centers. This inclusion could have several impacts on chargeability and voltage levels of the distribution systems. In this paper positive and negative impacts of DG penetration are characterized in terms of sizing and location of the DG. Three scenarios of DG sources located at head-feeder, mid-feeder and end-feeder busbars and several penetration levels of DG power are simulated in a local MV network. Indexes for lines chargeability and voltage levels are calculated to assess the impact of different scenarios of DG. We find that in this case voltage level variations are not significantly different for the all simulated scenarios of DG. On the other hand, we find that the magnitude and direction of the power flow affect the chargeability index and downstream locations of DG have stronger impact on this index.
{"title":"Impact of different DG location on chargeability and voltage level of distribution networks","authors":"V. Quintero-Molina, A. Pavas, Miguel Romero-L","doi":"10.1109/PEPQA.2017.7981674","DOIUrl":"https://doi.org/10.1109/PEPQA.2017.7981674","url":null,"abstract":"The conventional structure of distribution grids has been changing due to the inclusion of distributed generation (DG) near to consumption centers. This inclusion could have several impacts on chargeability and voltage levels of the distribution systems. In this paper positive and negative impacts of DG penetration are characterized in terms of sizing and location of the DG. Three scenarios of DG sources located at head-feeder, mid-feeder and end-feeder busbars and several penetration levels of DG power are simulated in a local MV network. Indexes for lines chargeability and voltage levels are calculated to assess the impact of different scenarios of DG. We find that in this case voltage level variations are not significantly different for the all simulated scenarios of DG. On the other hand, we find that the magnitude and direction of the power flow affect the chargeability index and downstream locations of DG have stronger impact on this index.","PeriodicalId":256426,"journal":{"name":"2017 IEEE Workshop on Power Electronics and Power Quality Applications (PEPQA)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130003061","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}
Pub Date : 2017-05-01DOI: 10.1109/PEPQA.2017.7981688
J. Urrea-Quintero, N. Muñoz-Galeano, Daniel A. Cuervo-Sanchez
In this work a design procedure of Power Electronic Converters (PECs) is proposed, which is based on system knowledge and systems theory. The proposed design procedure is composed of 4 stages and 10 steps and it allows to obtain all PEC parameters and its control structure such that established system operating requirements are satisfied. In this proposed design procedure, system controllability is tested based on set theory in control. The main achievement of this design procedure is to allow the PEC design to take into account its inherent dynamical nature, with verified controllability, but without fixing any control structure.
{"title":"A procedure for power electronic converters design with controllability verification based on the nonlinear dynamical model","authors":"J. Urrea-Quintero, N. Muñoz-Galeano, Daniel A. Cuervo-Sanchez","doi":"10.1109/PEPQA.2017.7981688","DOIUrl":"https://doi.org/10.1109/PEPQA.2017.7981688","url":null,"abstract":"In this work a design procedure of Power Electronic Converters (PECs) is proposed, which is based on system knowledge and systems theory. The proposed design procedure is composed of 4 stages and 10 steps and it allows to obtain all PEC parameters and its control structure such that established system operating requirements are satisfied. In this proposed design procedure, system controllability is tested based on set theory in control. The main achievement of this design procedure is to allow the PEC design to take into account its inherent dynamical nature, with verified controllability, but without fixing any control structure.","PeriodicalId":256426,"journal":{"name":"2017 IEEE Workshop on Power Electronics and Power Quality Applications (PEPQA)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114280241","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}
Pub Date : 2017-05-01DOI: 10.1109/PEPQA.2017.7981670
J. D. López, Jenny K. Córdoba, H. Rojas, A. Jaramillo
This paper presents the assessment of diode clamped multilevel inverters (DCMLI) and cascaded multi-level inverter (CMLI). For each topology its main features and its implementation using MATLAB-Simulink® are presented. From a case study the inverters are compared taking into account the number of elements required, the waveform of the output voltage, the total harmonic distortion on the voltage signal (THDv), the individual harmonic content and the behavior of the THDv as a function of the output voltage. The simulations show that the improved DCMLI inverter has better waveform results and lower THDv for a given voltage range.
{"title":"Assessment of multi-level inverters for low and medium voltage applications","authors":"J. D. López, Jenny K. Córdoba, H. Rojas, A. Jaramillo","doi":"10.1109/PEPQA.2017.7981670","DOIUrl":"https://doi.org/10.1109/PEPQA.2017.7981670","url":null,"abstract":"This paper presents the assessment of diode clamped multilevel inverters (DCMLI) and cascaded multi-level inverter (CMLI). For each topology its main features and its implementation using MATLAB-Simulink® are presented. From a case study the inverters are compared taking into account the number of elements required, the waveform of the output voltage, the total harmonic distortion on the voltage signal (THDv), the individual harmonic content and the behavior of the THDv as a function of the output voltage. The simulations show that the improved DCMLI inverter has better waveform results and lower THDv for a given voltage range.","PeriodicalId":256426,"journal":{"name":"2017 IEEE Workshop on Power Electronics and Power Quality Applications (PEPQA)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115712691","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}
Pub Date : 2017-05-01DOI: 10.1109/PEPQA.2017.7981672
E.S Gomez-Oviedo, G.A Pardo, F. Santamaria, C. Trujillo
Adequate power quality monitoring in all voltage levels of the power system has important advantages as the reduction of the losses caused by the different electromagnetic disturbances. However, the high costs of the power quality monitors restrict their use. This paper presents the methodology developed for the design of a module for the recording of voltage sags in low voltage systems as an alternative to expensive equipment. The module includes a signal conditioning, acquisition and data processing, storage, real time clock and communications, it is also able to register voltage sags in single-phase and three-phase systems.
{"title":"Module for recording voltage sags in low voltage systems","authors":"E.S Gomez-Oviedo, G.A Pardo, F. Santamaria, C. Trujillo","doi":"10.1109/PEPQA.2017.7981672","DOIUrl":"https://doi.org/10.1109/PEPQA.2017.7981672","url":null,"abstract":"Adequate power quality monitoring in all voltage levels of the power system has important advantages as the reduction of the losses caused by the different electromagnetic disturbances. However, the high costs of the power quality monitors restrict their use. This paper presents the methodology developed for the design of a module for the recording of voltage sags in low voltage systems as an alternative to expensive equipment. The module includes a signal conditioning, acquisition and data processing, storage, real time clock and communications, it is also able to register voltage sags in single-phase and three-phase systems.","PeriodicalId":256426,"journal":{"name":"2017 IEEE Workshop on Power Electronics and Power Quality Applications (PEPQA)","volume":"113 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131503196","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}
Pub Date : 2017-05-01DOI: 10.1109/PEPQA.2017.7981687
B. J. A. Tumialan, S. Correa, Diana Lancheros Cuestas, F. C. A. Correa
In this work are presented three algorithms that form part of a platform for analysis and characterization of power quality disturbances in electric distribution systems. In the initial part are presented the fundamentals in that are based some recent works oriented to the optimal location of meters and the relative sags source location in an electric distribution network. The document continues with the description of three algorithms for optimal location of meters, relative sag sources (cause by failures, large motors connections, energizing of transformers and large capacitor banks) location and causes thereof which are tested in a real distribution feeder (FUNDIKOM circuit). The final part discusses the results and determines the effectiveness of algorithms.
{"title":"Development of a platform for analysis and characterization of power quality disturbances","authors":"B. J. A. Tumialan, S. Correa, Diana Lancheros Cuestas, F. C. A. Correa","doi":"10.1109/PEPQA.2017.7981687","DOIUrl":"https://doi.org/10.1109/PEPQA.2017.7981687","url":null,"abstract":"In this work are presented three algorithms that form part of a platform for analysis and characterization of power quality disturbances in electric distribution systems. In the initial part are presented the fundamentals in that are based some recent works oriented to the optimal location of meters and the relative sags source location in an electric distribution network. The document continues with the description of three algorithms for optimal location of meters, relative sag sources (cause by failures, large motors connections, energizing of transformers and large capacitor banks) location and causes thereof which are tested in a real distribution feeder (FUNDIKOM circuit). The final part discusses the results and determines the effectiveness of algorithms.","PeriodicalId":256426,"journal":{"name":"2017 IEEE Workshop on Power Electronics and Power Quality Applications (PEPQA)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130936227","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}
Pub Date : 2017-05-01DOI: 10.1109/PEPQA.2017.7981675
E. Moreno, Orlando A. González, A. Pavas
This paper proposes the concept of Demand Flexibility for the assessment of customer demand profiles. First a demand profile is modeled resorting to stochastic simulation techniques, including different appliances such as lighting, refrigeration, entertainment devices, among others. Second, different demand management strategies are applied in order to identify the flexibility of the modeled customer profile. This concept allows to analyze of Demand Response Models (DRM) applicable to Micro-grid with diversity of features and simulation tools.
{"title":"Demand flexibility assessment for residential customers","authors":"E. Moreno, Orlando A. González, A. Pavas","doi":"10.1109/PEPQA.2017.7981675","DOIUrl":"https://doi.org/10.1109/PEPQA.2017.7981675","url":null,"abstract":"This paper proposes the concept of Demand Flexibility for the assessment of customer demand profiles. First a demand profile is modeled resorting to stochastic simulation techniques, including different appliances such as lighting, refrigeration, entertainment devices, among others. Second, different demand management strategies are applied in order to identify the flexibility of the modeled customer profile. This concept allows to analyze of Demand Response Models (DRM) applicable to Micro-grid with diversity of features and simulation tools.","PeriodicalId":256426,"journal":{"name":"2017 IEEE Workshop on Power Electronics and Power Quality Applications (PEPQA)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126838246","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}
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