2009 Brazilian Power Electronics Conference最新文献_第3页

Modeling and analysis of six-phase induction machine under fault condition 故障状态下六相感应电机的建模与分析

2009 Brazilian Power Electronics Conference Pub Date : 2009-12-04 DOI: 10.1109/COBEP.2009.5347696

R. S. Miranda, C. Jacobina, Antonio M. N. Lima

引用次数: 25

Grid-connected PV system using a three-phase modified dual-stage inverter 并网光伏系统采用三相改进型双级逆变器

2009 Brazilian Power Electronics Conference Pub Date : 2009-12-04 DOI: 10.1109/COBEP.2009.5347762

M. Casaro, D. Martins

{"title":"Grid-connected PV system using a three-phase modified dual-stage inverter","authors":"M. Casaro, D. Martins","doi":"10.1109/COBEP.2009.5347762","DOIUrl":"https://doi.org/10.1109/COBEP.2009.5347762","url":null,"abstract":"This paper presents a PV grid-connected system in centralized configuration and constructed with a three-phase dual-stage inverter. In this topology, usually, a DC-DC converter performs the maximum power point tracking (MPPT) and an inverter is responsible for controlling the grid-current. For the DC-DC stage the three-phase series resonant converter (SRC3) is chosen thanks to the advantages that it exhibits. However, it is inadequate for the accomplishment of MPPT, due to its efficiency strongly depending on the implemented deadtime and switching frequency. Then, this paper proposes a conceptual modification, i.e., a dual-stage inverter in which the inverter stage is responsible for the MPPT and the grid-current control. In addition, the DC-DC converter operates with constant duty cycle and frequency. Such configuration requires a new concept, introduced as Behavior Matching. It serves as a fundamental feature for the DC-DC converter to reproduce the PV array I-V characteristic when they are connected, without control action. The maximum power operating point (MPOP) is found by maximizing the direct axis current, obtained by Park's transformation from the inverter, through the perturbation and observation algorithm (P&O). Any specific measurement to realize MPPT is not needed. The galvanic isolation is achieved by using a high-frequency transformer. The structure is appropriate for high power applications, above 10kW.","PeriodicalId":183864,"journal":{"name":"2009 Brazilian Power Electronics Conference","volume":"98 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132423938","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: 12

Modeling and control of a three-phase isolated grid-connected converter fed by a photovoltaic array 光伏阵列供电三相隔离并网变流器的建模与控制

2009 Brazilian Power Electronics Conference Pub Date : 2009-12-04 DOI: 10.1109/COBEP.2009.5347682

M. G. Villalva, J. R. Gazoli, E. R. Filho

引用次数: 9

Universal input voltage self-oscillating electronic ballast based on switching frequency control 基于开关频率控制的通用输入电压自振荡电子镇流器

2009 Brazilian Power Electronics Conference Pub Date : 2009-12-04 DOI: 10.1109/COBEP.2009.5347656

J. de P. Lopes, M. F. da Silva, R. D. do Prado, Á. Seidel

引用次数: 0

A single-phase UPS system with harmonic suppression and reactive power compensation 具有谐波抑制和无功补偿的单相UPS系统

2009 Brazilian Power Electronics Conference Pub Date : 2009-12-04 DOI: 10.1109/COBEP.2009.5347745

S. D. da Silva, R. A. Modesto, Angelo Feracin Neto, Silvia G. de Souza Cervantes

{"title":"A single-phase UPS system with harmonic suppression and reactive power compensation","authors":"S. D. da Silva, R. A. Modesto, Angelo Feracin Neto, Silvia G. de Souza Cervantes","doi":"10.1109/COBEP.2009.5347745","DOIUrl":"https://doi.org/10.1109/COBEP.2009.5347745","url":null,"abstract":"This work proposes a control strategy applied to a single-phase uninterruptible power supply (UPS) system with series-parallel active power-line conditioning capabilities, allowing sinusoidal input current and sinusoidal output voltage, which results in an effective power factor correction. The UPS system is composed by two single-phase PWM converters in order to perform the active power line filter functions. The series converter acts as a series active power filter, which works as a sinusoidal current source in phase with the input voltage. The parallel converter acts as a parallel active power filter, which works as a sinusoidal voltage source in phase with the input voltage, providing sinusoidal voltage with low total harmonic distortion (THD). The detection of the angle-phase is performed using a single-phase PLL (Phase-Locked Loop) structure, which is based on instantaneous active power theory. The PLL system has been implemented into two-phase stationary reference frame. Thereby, a fictitious quadrature voltage needs to be generated, which must be orthogonal to the measured utility voltage. Both the control algorithm of the UPS system, which uses synchronous reference frame (SRF) method, and the active power flow that occurs through the UPS system will be described and analytically studied. Mathematical analysis of the SRF-based algorithm is presented and simulation results are performed to validate the theoretical development and to verify the performance of the UPS system.","PeriodicalId":183864,"journal":{"name":"2009 Brazilian Power Electronics Conference","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121811642","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

Photovoltaic panels grid-tied by a Zeta converter 由Zeta转换器并网的光伏板

2009 Brazilian Power Electronics Conference Pub Date : 2009-12-04 DOI: 10.1109/COBEP.2009.5347658

Henrique F. M. Lopez, Cesar A. Zollmann, Renan Viero e Fernando S. dos Reis

引用次数: 16

A bipolar DC power supply using full-bridge topology as active shunt for magnets 采用全桥拓扑作为磁铁有源分流的双极直流电源

2009 Brazilian Power Electronics Conference Pub Date : 2009-12-04 DOI: 10.1109/COBEP.2009.5347651

C. Rodrigues, A.R. Silva

引用次数: 5

Phasor analisys of Transformer Series Voltage Source Converter 变压器串联电压源变换器相量分析

2009 Brazilian Power Electronics Conference Pub Date : 2009-12-04 DOI: 10.1109/COBEP.2009.5347632

S. Lima, E. Watanabe

引用次数: 2

Inclusion of the start-up effect in the electronic modeling of proton exchange membrane fuel cells 质子交换膜燃料电池电子模型中包含启动效应

2009 Brazilian Power Electronics Conference Pub Date : 2009-12-04 DOI: 10.1109/COBEP.2009.5347614

F. Z. Ferrigolo, A. Dutra, D. B. Ramos, L. P. Lima, F. Farret

引用次数: 1

High performance photovoltaic pumping system using induction motor 采用感应电机的高性能光伏抽水系统

2009 Brazilian Power Electronics Conference Pub Date : 2009-12-04 DOI: 10.1109/COBEP.2009.5347608

M. Vitorino, M. Corrêa

引用次数: 37