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Hybrid PI&APDR Controller for Current Regulation and Low-Frequency Ripple Rejection in LED Drivers 用于LED驱动电流调节和低频纹波抑制的PI&APDR混合控制器
2021 Brazilian Power Electronics Conference (COBEP) Pub Date : 2021-11-07 DOI: 10.1109/COBEP53665.2021.9684131
M. Menke, R. Tambara, J. M. Alonso, Á. Seidel
{"title":"Hybrid PI&APDR Controller for Current Regulation and Low-Frequency Ripple Rejection in LED Drivers","authors":"M. Menke, R. Tambara, J. M. Alonso, Á. Seidel","doi":"10.1109/COBEP53665.2021.9684131","DOIUrl":"https://doi.org/10.1109/COBEP53665.2021.9684131","url":null,"abstract":"This paper proposes a hybrid dual-loop PI&APDR controller for offline LED drivers where a reduced low-frequency output current ripple and DC regulation is required over a wide operating range. The outer loop employs a PI subsystem designed to maintain the average LED current regulated at the reference value, which depends on the desired output dimming. On the other hand, the APDR subsystem is designed to strictly reject the bus voltage ripple and limit its transmission to the LED current and voltage. Experimental results show the proposed controller feasibility in achieving good tracking behavior, reduced output current ripple, robustness against parametric variations, and simple design and implementation.","PeriodicalId":442384,"journal":{"name":"2021 Brazilian Power Electronics Conference (COBEP)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131749545","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}
引用次数: 0
Control of Hybrid Energy Storage System for Providing Grid Support Services 为电网提供支持服务的混合储能系统控制
2021 Brazilian Power Electronics Conference (COBEP) Pub Date : 2021-11-07 DOI: 10.1109/COBEP53665.2021.9684148
Pedro A. N. Neto, Beatriz Maria W. Soares, João Gonçalves A. da Silva, C. Gehrke, I. R. F. M. P. da Silva
{"title":"Control of Hybrid Energy Storage System for Providing Grid Support Services","authors":"Pedro A. N. Neto, Beatriz Maria W. Soares, João Gonçalves A. da Silva, C. Gehrke, I. R. F. M. P. da Silva","doi":"10.1109/COBEP53665.2021.9684148","DOIUrl":"https://doi.org/10.1109/COBEP53665.2021.9684148","url":null,"abstract":"This paper presents an analysis of the model and control of a hybrid energy storage system (ESS) based on supercapacitor and battery for supporting the power grid. The power conversion system consists of a bidirectional dc-dc converter as an additional stage for regulating the dc-link voltage of the dc-ac converter, which is connected to a three-wire three-phase system. The grid power control is implemented based on the instantaneous $pq$ theory, in order to achieve low-frequency demand from the power control of the batteries. Thus, the power peaks are automatically provided by the supercapacitors. From this solution, a smaller battery size, a longer battery life and a higher overall system efficiency can be achieved compared to a conventional battery ESS. To verify the effectiveness of the proposed system, simulation results are presented, and a comparison between the conventional battery ESS and the proposed solution is also presented.","PeriodicalId":442384,"journal":{"name":"2021 Brazilian Power Electronics Conference (COBEP)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115051114","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}
引用次数: 0
Optimized Simultaneous Tuning of VSI Controllers in Autonomous Microgrids Using Differential Evolution Metaheuristic 基于差分进化元启发式的自主微电网VSI控制器同步优化整定
2021 Brazilian Power Electronics Conference (COBEP) Pub Date : 2021-11-07 DOI: 10.1109/COBEP53665.2021.9684122
Bruno Leandro Galvão Costa, S. A. Oliveira da Silva
{"title":"Optimized Simultaneous Tuning of VSI Controllers in Autonomous Microgrids Using Differential Evolution Metaheuristic","authors":"Bruno Leandro Galvão Costa, S. A. Oliveira da Silva","doi":"10.1109/COBEP53665.2021.9684122","DOIUrl":"https://doi.org/10.1109/COBEP53665.2021.9684122","url":null,"abstract":"This paper proposes a differential evolution metaheuristic application for simultaneous tuning of parallel-connected three-phase voltage source inverter (VSI) controllers allocated in an autonomous microgrid. The VSIs structures are composed of power-sharing, voltage, and current controllers that dictate the dynamics performance of the microgrid. The tuning of the controllers is modeled as an optimization problem. This procedure involves minimizing a cost function based on a weighted sum of deviations between instantaneous and nominal active/reactive powers, inner control loop errors, control signals saturation, active power-sharing errors, and the total harmonic distortion of the output voltages. It is considered an eigenvalue stability analysis based on a complete autonomous microgrid small-signal model for defining the search range of the optimization parameters by combining three major sub-modules: droop-controlled three-phase VSIs, network and loads, in conjunction with the frequency response method in terms of phase margin and 0dB crossover frequency. Simulation results are obtained to evidencing the effectiveness of the proposed approach.","PeriodicalId":442384,"journal":{"name":"2021 Brazilian Power Electronics Conference (COBEP)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130899304","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}
引用次数: 0
Buck-Boost-Forward Ac/Dc Converter Design Supported by Computer-Aided Engineering 计算机辅助工程支持的Buck-Boost-Forward Ac/Dc变换器设计
2021 Brazilian Power Electronics Conference (COBEP) Pub Date : 2021-11-07 DOI: 10.1109/COBEP53665.2021.9684104
Marcelo Weber Contri, Bruno F. Almeida, V. Bender
{"title":"Buck-Boost-Forward Ac/Dc Converter Design Supported by Computer-Aided Engineering","authors":"Marcelo Weber Contri, Bruno F. Almeida, V. Bender","doi":"10.1109/COBEP53665.2021.9684104","DOIUrl":"https://doi.org/10.1109/COBEP53665.2021.9684104","url":null,"abstract":"This article is going to contemplate the steps involved in the conception of an AC/DC integrated converter with the power factor correction (PFC) stage applied in an Organic Light-Emitting Diode (OLED) driver. An approach about converter design with emphasis in magnetic elements will be performed, such approach includes the support and design validation by computer-aided engineering (CAE). The obtained results show the viability of using CAE tools in power converters concept being useful for the power electronics designers that is looking to optimize their projects.","PeriodicalId":442384,"journal":{"name":"2021 Brazilian Power Electronics Conference (COBEP)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130943105","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}
引用次数: 0
Simulation of the DC-AC Converter Control for an Isolated PV System 隔离型光伏系统直流-交流变换器控制仿真
2021 Brazilian Power Electronics Conference (COBEP) Pub Date : 2021-11-07 DOI: 10.1109/COBEP53665.2021.9684096
Maria Paula Mantilla Arias, D. A. Bautista López, Laura Camila Plazas Hernández, Esteban Ricardo Prieto Galindo, E. J. Patiño Núñez, Edgar Leonardo Castellanos Solano, Juan Carlos Saavedra Merchán
{"title":"Simulation of the DC-AC Converter Control for an Isolated PV System","authors":"Maria Paula Mantilla Arias, D. A. Bautista López, Laura Camila Plazas Hernández, Esteban Ricardo Prieto Galindo, E. J. Patiño Núñez, Edgar Leonardo Castellanos Solano, Juan Carlos Saavedra Merchán","doi":"10.1109/COBEP53665.2021.9684096","DOIUrl":"https://doi.org/10.1109/COBEP53665.2021.9684096","url":null,"abstract":"This paper presents the controller design and tests over a DC-AC converter used in an isolated photovoltaic (PV) system. The control stage is on a Boost converter and its effect takes place on a Voltage Source Inverter (VSI), to reach the DC-AC conversion essential in the PV system by a cascade connection of them. The digital controller was verified through tests in the simulation software Proteus®, obtaining satisfactory results related to the stability of the output voltage and a harmonic distortion lower than 6%, which indicates it is a viable control conversion system for a future real implementation in a PV installation.","PeriodicalId":442384,"journal":{"name":"2021 Brazilian Power Electronics Conference (COBEP)","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131916154","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}
引用次数: 0
Design of Damping Strategies for LC filter in medium voltage induction motor drives 中压感应电机驱动中LC滤波器阻尼策略的设计
2021 Brazilian Power Electronics Conference (COBEP) Pub Date : 2021-11-07 DOI: 10.1109/COBEP53665.2021.9684092
D. Gonçalves, João Victor Matos Farias, H. Pereira, A. Luiz, M. M. Stopa, A. F. Cupertino
{"title":"Design of Damping Strategies for LC filter in medium voltage induction motor drives","authors":"D. Gonçalves, João Victor Matos Farias, H. Pereira, A. Luiz, M. M. Stopa, A. F. Cupertino","doi":"10.1109/COBEP53665.2021.9684092","DOIUrl":"https://doi.org/10.1109/COBEP53665.2021.9684092","url":null,"abstract":"This work presents the impact of an LC filter when implemented in a medium voltage (MV) induction motor connected to a NPC inverter through long cables. The main reason to implement a filter is to mitigate the harmonic components introduced by the inverter, that could damage the machine isolation, and to reduce the reflected wave created by the long cables. However, this strategy introduces a resonance, which can lead to instabilities in current control. This issue can be mitigated by introducing resistive elements, which causes additional losses. In order to avoid these losses, the filter resistors can be suppressed if an active damping strategy is used. In this work, a design method for passive and active damping based on capacitor current measurement is presented. The parameters are selected based on root locus method. Finally, a comparison between both strategies is described.","PeriodicalId":442384,"journal":{"name":"2021 Brazilian Power Electronics Conference (COBEP)","volume":"75 2 Suppl 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128454805","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}
引用次数: 1
FCS-MPC Applied to Multilevel Hybrid Active Power Filter for Reactive Power and Harmonics Compensation FCS-MPC应用于多电平混合有源滤波器的无功和谐波补偿
2021 Brazilian Power Electronics Conference (COBEP) Pub Date : 2021-11-07 DOI: 10.1109/COBEP53665.2021.9684132
J. G. Foster, R. Pereira, R. Gonzatti, B. Guimarães, Gulherme G. Pinheiro, W. C. Sant’Ana
{"title":"FCS-MPC Applied to Multilevel Hybrid Active Power Filter for Reactive Power and Harmonics Compensation","authors":"J. G. Foster, R. Pereira, R. Gonzatti, B. Guimarães, Gulherme G. Pinheiro, W. C. Sant’Ana","doi":"10.1109/COBEP53665.2021.9684132","DOIUrl":"https://doi.org/10.1109/COBEP53665.2021.9684132","url":null,"abstract":"This article presents the design and implementation of a finite control set model predictive controller applied to a multilevel hybrid active power filter for reactive power and harmonic current compensation. In the proposed technique a multivariable control approach is considered, the references for the reactive power compensation are obtained based on the model of the HAPF and the references for the harmonic components to be mitigated are obtained by a proportional resonant compen-sator. The proposed technique is verified through several tests performed in a laboratory prototype, composed by a 7-level cascaded H-bridge inverter and an LCL filter.","PeriodicalId":442384,"journal":{"name":"2021 Brazilian Power Electronics Conference (COBEP)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134122651","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}
引用次数: 1
Control methodologies for energy storage systems to support voltage in distribution grids with photovoltaic insertion 支持有光伏插入的配电网电压的储能系统的控制方法
2021 Brazilian Power Electronics Conference (COBEP) Pub Date : 2021-11-07 DOI: 10.1109/COBEP53665.2021.9684033
Mateus L. Lima, L. V. Pinheiro, J. G. Oliveira, J. A. G. Archetti, L. W. Oliveira
{"title":"Control methodologies for energy storage systems to support voltage in distribution grids with photovoltaic insertion","authors":"Mateus L. Lima, L. V. Pinheiro, J. G. Oliveira, J. A. G. Archetti, L. W. Oliveira","doi":"10.1109/COBEP53665.2021.9684033","DOIUrl":"https://doi.org/10.1109/COBEP53665.2021.9684033","url":null,"abstract":"With the growth of distributed generation in distribution systems, problems related to voltage levels start to appear in the grid. In this context, this paper analyzes different techniques for voltage regulation of a distribution system with a high level of photovoltaic penetration (PV). The strategy is to use a battery energy storage system (BESS) in parallel to the PV generation point to promote power support to the grid, and to control the voltage level of the system. Two control strategies will be investigated. The first one controls the system voltage by adjusting the power flowing directly through the BESS. The second one provides voltage support by controlling the resulting power flowing between the PV generation and the BESS to the grid. The contribution of this paper is the comparison between these two methodologies in voltage regulation. These analyses were done through the Simulink/Matlab software using the Cigré 18 Bus Distribution system.","PeriodicalId":442384,"journal":{"name":"2021 Brazilian Power Electronics Conference (COBEP)","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133175827","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}
引用次数: 1
One Cycle Control Applied to a Three-Phase PWM Rectifier 应用于三相PWM整流器的单周期控制
2021 Brazilian Power Electronics Conference (COBEP) Pub Date : 2021-11-07 DOI: 10.1109/COBEP53665.2021.9684066
Rodrigo de Andrade Teixeira, A. Salazar, Elmer Rolando Llanos Villarrreal, Werbet Luiz Almeida da Silva, João T. de Carvalho Neto
{"title":"One Cycle Control Applied to a Three-Phase PWM Rectifier","authors":"Rodrigo de Andrade Teixeira, A. Salazar, Elmer Rolando Llanos Villarrreal, Werbet Luiz Almeida da Silva, João T. de Carvalho Neto","doi":"10.1109/COBEP53665.2021.9684066","DOIUrl":"https://doi.org/10.1109/COBEP53665.2021.9684066","url":null,"abstract":"This work has as a proposal using the one-cycle controls techniques to control a three-phase rectifier based on the boost topology without using voltage sensors in the coupled points of the system. In addition, unlike most of the work developed with the OCC technique, the digital implementation using DSP TMS320F28335 from Texas Instruments was used. The objective of implementing this proposal is the obtain a sinusoidal current at the input of the rectifier with a power factor as close as feasible to the unit, although the output of the rectifier is controlled at a fixed voltage value. Thus, simulations were performed to evaluate the proposed system, and empirical results were verified in a laboratory prototype.","PeriodicalId":442384,"journal":{"name":"2021 Brazilian Power Electronics Conference (COBEP)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133380380","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}
引用次数: 0
Modulated Direct Torque Control Applied to Induction Motor Drive Systems Operating Under Single-Phase Open-Circuit Fault 单相开路故障下异步电机驱动系统的调制直接转矩控制
2021 Brazilian Power Electronics Conference (COBEP) Pub Date : 2021-11-07 DOI: 10.1109/COBEP53665.2021.9684099
P. Martins, V. B. Melo, Gilielson F. da Paz, F. V. Rocha
{"title":"Modulated Direct Torque Control Applied to Induction Motor Drive Systems Operating Under Single-Phase Open-Circuit Fault","authors":"P. Martins, V. B. Melo, Gilielson F. da Paz, F. V. Rocha","doi":"10.1109/COBEP53665.2021.9684099","DOIUrl":"https://doi.org/10.1109/COBEP53665.2021.9684099","url":null,"abstract":"This paper discusses Modulated Direct-Torque-Control (DTC)-based fault-tolerance strategies applied to three fault-tolerant induction motor drive systems when they operate under single-phase open-circuit fault. Despite the fact that these drive systems have already been discussed in the literature, the reported papers always make use of either Field-Oriented-Control (FOC)- or Switching- Table-Direct- Torque-Control (ST-DTC)-based fault compensation strategies. In this way, performed simulations show that Modulated DTC provides proper fault-tolerant performance for all studied configu-rations. Also, a comparison between ST-DTC and Modu-lated DTC for all discussed drives systems is performed, showing that Modulated DTC provides better dynamic response when the systems migrate from healthy to post-fault operation, reaching lower peak current values during transient-state operation.","PeriodicalId":442384,"journal":{"name":"2021 Brazilian Power Electronics Conference (COBEP)","volume":"370 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122150609","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}
引用次数: 0
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