2020 IEEE Applied Power Electronics Conference and Exposition (APEC)最新文献

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Resonant Flyback PV Microinverter With Low Component Count 谐振反激式低分量PV微型逆变器
2020 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2020-03-01 DOI: 10.1109/APEC39645.2020.9124505
S. Jo, Hwasoo Seok, Junsik Kim, Minsung Kim
{"title":"Resonant Flyback PV Microinverter With Low Component Count","authors":"S. Jo, Hwasoo Seok, Junsik Kim, Minsung Kim","doi":"10.1109/APEC39645.2020.9124505","DOIUrl":"https://doi.org/10.1109/APEC39645.2020.9124505","url":null,"abstract":"This paper presents a resonant flyback photovoltaic microinverter with reduced number of power components. Unlike conventional flyback converter, it transfers energy in a resonant manner during the first half of the switching period and in a linear way during the remaining half of the switching period. It operates in dual-mode: below resonance mode (BRM) above the computed instantaneous power level and above resonance mode (ARM) below this instantaneous power level. Secondary diodes of the resonant flyback converter are integrated into two of the secondary-side switches in the proposed inverter configuration, which reduces the number of active-power components. The operation principle of the inverter is presented and analyzed. Experimental results for a prototype 200-W inverter verify these characteristics.","PeriodicalId":171455,"journal":{"name":"2020 IEEE Applied Power Electronics Conference and Exposition (APEC)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128434094","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
High-Efficiency Model Predictive Control for Star-Connected Cascaded H-Bridge STATCOM Under Unbalanced Conditions 不平衡条件下星形连接级联h桥STATCOM的高效模型预测控制
2020 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2020-03-01 DOI: 10.1109/APEC39645.2020.9124355
Yufei Li, Yue Zhao, Fei Diao
{"title":"High-Efficiency Model Predictive Control for Star-Connected Cascaded H-Bridge STATCOM Under Unbalanced Conditions","authors":"Yufei Li, Yue Zhao, Fei Diao","doi":"10.1109/APEC39645.2020.9124355","DOIUrl":"https://doi.org/10.1109/APEC39645.2020.9124355","url":null,"abstract":"This paper presents a high-efficiency model predictive control (HMPC), which is enabled by a sorting approach based on dc capacitor voltages to significantly reduce the exponentially-increasing switching states in cascaded H-bridge (CHB) converters. In addition, a generic discrete-time prediction model for star-connected CHB static synchronous compensator is proposed to address the issues due to either grid and/or load unbalances. Both simulation and hardware-in-loop experimental results are presented to validate the feasibility and effectiveness of the proposed HMPC strategy.","PeriodicalId":171455,"journal":{"name":"2020 IEEE Applied Power Electronics Conference and Exposition (APEC)","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127216884","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: 4
Optimal Self-Tuning Control for Data-Centers’ 48V-12V ZCS-STC 数据中心48V-12V ZCS-STC的最优自调谐控制
2020 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2020-03-01 DOI: 10.1109/APEC39645.2020.9124129
Guy Sovik, Tom Urkin, Erez Erzol Masandilov, Mor Mordechai Peretz
{"title":"Optimal Self-Tuning Control for Data-Centers’ 48V-12V ZCS-STC","authors":"Guy Sovik, Tom Urkin, Erez Erzol Masandilov, Mor Mordechai Peretz","doi":"10.1109/APEC39645.2020.9124129","DOIUrl":"https://doi.org/10.1109/APEC39645.2020.9124129","url":null,"abstract":"This paper presents a zero-current-switching (ZCS) control method with self-tuning capabilities employed on a 4-to-1 switched-tank converter (STC) for Google’s and associated OCP standard data-centers. The control scheme ensures ZCS operation of each of the STC’s resonant tanks individually, regardless of components mismatch, and adjusts the switching period upon variations of the components’ values. The switching-state of the STC’s resonators is evaluated at the turn-off instance by dedicated zero-current-detection indicator. Two approaches have been developed for the sensor’s data acquisition, accounting for the inherent delay between the digital-controller gating command and the actual turn-off of the switches. The operation of the control has been validated experimentally on 650W 4-to-1 STC with PCB area of 5cmX2cmX0.6cm, demonstrating exceptional self-tuning capabilities over the entire load range and for various component mismatch scenarios. Peak efficiency of 98.6% is achieved at 200W.","PeriodicalId":171455,"journal":{"name":"2020 IEEE Applied Power Electronics Conference and Exposition (APEC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129921240","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: 2
A Coupled-Inductor Dc Breaker with STFT-Based Arc Detection 一种基于stft电弧检测的耦合电感直流断路器
2020 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2020-03-01 DOI: 10.1109/APEC39645.2020.9124335
A. Maqsood, N. Rossi, Yue Ma, K. Corzine, L. Parsa, D. Oslebo
{"title":"A Coupled-Inductor Dc Breaker with STFT-Based Arc Detection","authors":"A. Maqsood, N. Rossi, Yue Ma, K. Corzine, L. Parsa, D. Oslebo","doi":"10.1109/APEC39645.2020.9124335","DOIUrl":"https://doi.org/10.1109/APEC39645.2020.9124335","url":null,"abstract":"This paper demonstrates the use of a coupled-inductor dc breaker to isolate the load from the source in case of a shunt fault as well as a slowly developing series arc fault. The design of the breaker allows it to automatically stop conducting in case of a sudden change in output current. The breaker can be designed to ensure that it does not misidentify a desired step change in load current as a fault. In addition a Texas Instruments digital signal processor is used to implement a short-time Fourier transform that continuously analyzes the load current. Based on the frequency content of the signal, the DSP is able to detect a sustained arc and signal the breaker to open. A simulation to demonstrate this concept is included in the paper along with an implementation of the short-time Fourier transform on an experimental setup.","PeriodicalId":171455,"journal":{"name":"2020 IEEE Applied Power Electronics Conference and Exposition (APEC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128981858","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
Self-Synchronizing Current Control of a Three-Phase Grid- Connected Inverter in the Presence of Unknown Grid Parameters 未知电网参数下三相并网逆变器的自同步电流控制
2020 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2020-03-01 DOI: 10.1109/APEC39645.2020.9123992
Joseph Latham, Moath H. A. Alqatamin, Z. T. Smith, B. Grainger, M. McIntyre
{"title":"Self-Synchronizing Current Control of a Three-Phase Grid- Connected Inverter in the Presence of Unknown Grid Parameters","authors":"Joseph Latham, Moath H. A. Alqatamin, Z. T. Smith, B. Grainger, M. McIntyre","doi":"10.1109/APEC39645.2020.9123992","DOIUrl":"https://doi.org/10.1109/APEC39645.2020.9123992","url":null,"abstract":"Three-phase inverters for grid-connected applications typically require some form of grid voltage phase detection in order to properly synchronize to the grid and control real and reactive power generation. This phase detection is usually based upon some type of grid voltage sensing. However, in the present work a method is proposed whereby the phase angle of the grid can be accurately identified solely via the grid current feedback. This phase observer is incorporated into a current controller which can manage the real and reactive power. The design of this combined observer/controller system is motivated and validated via a Lyapunov stability analysis. Controller Hardware-in-the-Loop results under various operating conditions are provided for further validation and realization.","PeriodicalId":171455,"journal":{"name":"2020 IEEE Applied Power Electronics Conference and Exposition (APEC)","volume":"144 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130632230","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: 3
Diagnosing for Cross-conduction in GaN Half-Bridge GaN半桥交叉传导的诊断
2020 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2020-03-01 DOI: 10.1109/APEC39645.2020.9124086
Ya-jie Qiu, Jinseng Vanderkloot, Ruoyu Hou, Juncheng Lu
{"title":"Diagnosing for Cross-conduction in GaN Half-Bridge","authors":"Ya-jie Qiu, Jinseng Vanderkloot, Ruoyu Hou, Juncheng Lu","doi":"10.1109/APEC39645.2020.9124086","DOIUrl":"https://doi.org/10.1109/APEC39645.2020.9124086","url":null,"abstract":"GaN E-HEMTs eliminate the inherent parasitic diodes compared to Si MOSFETs and have faster switching speeds and slew rates [1]. These and other improved characteristics of GaN E-HEMTs have reduced system size and weight, have delivered lower system costs and have increased efficiency [2]. However, advancements in the GaN HEMTs used in switching power supplies have made characterizing the performance of these power supplies increasingly challenging. A particularly demanding measurement is measuring the high-side VGS in a half bridge, which is a traditional way to diagnose the cross-conduction for Si MOSFETs. Although special probes and measurement systems with galvanic isolation (optical isolation) have been developed for this purpose, GaN users are discouraged by the cost and are seeking a lower cost method to diagnose GaN cross-conduction. By taking advantage of GaN’s unique feature (no body diode and reverse recovery loss), this paper is proposing a practical way to diagnose the cross-conduction /potential cross-conduction without sensing the high-side VGS: i. Calculating the high-side Coss charge during the voltage commutation; ii. Implementing a set of double pulse tests and recording the low-side drain currents; iii. Integrating the low-side drain current bump area above the load current and iv. Confirming that the result should match the COSS charge value. The proposed diagnostic method has been demonstrated by using the 25 mΩ RDS_on 650V GaN HEMT GS66516T as an example.","PeriodicalId":171455,"journal":{"name":"2020 IEEE Applied Power Electronics Conference and Exposition (APEC)","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132480246","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
Analysis and Evaluation of Thermally Annealed Pyrolytic Graphite Heat Spreader for Power Modules 功率模块热退火热解石墨散热片的分析与评价
2020 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2020-03-01 DOI: 10.1109/APEC39645.2020.9124080
E. Gurpinar, B. Ozpineci, John Preston Spires, W. Fan
{"title":"Analysis and Evaluation of Thermally Annealed Pyrolytic Graphite Heat Spreader for Power Modules","authors":"E. Gurpinar, B. Ozpineci, John Preston Spires, W. Fan","doi":"10.1109/APEC39645.2020.9124080","DOIUrl":"https://doi.org/10.1109/APEC39645.2020.9124080","url":null,"abstract":"Next generation power modules demand increased heat extraction capability along with reduced weight and volume. In this paper, thermally annealed pyrolytic graphite (TPG) is analyzed and compared with conventional materials used in power modules for thermal management. Fundamental properties of TPG are explained and compared with commonly used materials in power module heat spreaders and substrates. The encapsulated TPG based heat spreader is manufactured and compared with bulk copper in simulation and experimental based analysis. The results show that encapsulated TPG based heat spreader achieves more than 50% reduction in thermal resistance along with 48% reduction in weight in the heat spreader layer.","PeriodicalId":171455,"journal":{"name":"2020 IEEE Applied Power Electronics Conference and Exposition (APEC)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132519395","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: 2
A Novel Real-Time Junction Temperature Monitoring Circuit for SiC MOSFET 一种新型的SiC MOSFET结温实时监测电路
2020 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2020-03-01 DOI: 10.1109/APEC39645.2020.9124486
Hengyu Yu, Xi Jiang, Jianjun Chen, Jun Wang, Z. Shen
{"title":"A Novel Real-Time Junction Temperature Monitoring Circuit for SiC MOSFET","authors":"Hengyu Yu, Xi Jiang, Jianjun Chen, Jun Wang, Z. Shen","doi":"10.1109/APEC39645.2020.9124486","DOIUrl":"https://doi.org/10.1109/APEC39645.2020.9124486","url":null,"abstract":"Junction temperature is a critical parameter for indicating the health condition of power devices in converters. Temperature sensitive electrical parameters (TSEPs) provide a viable method for extracting junction temperature of power devices in real-time operation. However, a few studies focus on practical implementations methods for SiC devices. This paper proposed a novel real-time junction temperature monitoring circuit for SiC MOSFET based on its quasi-threshold voltage (quasi-Vth) without complex circuits and current sensors. Furthermore, the effects of load current and DC bus voltage on junction temperature of SiC MOSFET extraction are analyzed. The experimental result shows that the quasi-Vth of SiC MOSFET extracted by the proposed measurement circuit has a sensitivity of -4.37mV/°C and is independent of load current.","PeriodicalId":171455,"journal":{"name":"2020 IEEE Applied Power Electronics Conference and Exposition (APEC)","volume":"277 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132973619","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: 6
State-of-Charge Control with Series Output Connected DC-DC Modules in Active Battery Management Systems 有源电池管理系统中串联输出连接DC-DC模块的充电状态控制
2020 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2020-03-01 DOI: 10.1109/APEC39645.2020.9124376
Mohamed Kamel, V. Sankaranarayanan, R. Zane, D. Maksimović
{"title":"State-of-Charge Control with Series Output Connected DC-DC Modules in Active Battery Management Systems","authors":"Mohamed Kamel, V. Sankaranarayanan, R. Zane, D. Maksimović","doi":"10.1109/APEC39645.2020.9124376","DOIUrl":"https://doi.org/10.1109/APEC39645.2020.9124376","url":null,"abstract":"This paper presents state-of-charge (SOC) control between battery modules in an active battery management system (BMS) with series output connected DC-DC modules. To increase both the pack and system-level modularity, the BMS regulates the battery pack average SOC by controlling a common input current from all series-connected modules. A balancing loop introduces input current offsets to regulate all module SOCs. The BMS functions are divided between a central controller for battery pack SOC regulation and individual module SOC control; a module level controller regulates the input current. Experimental results are presented on a 1.5 kW prototype consisting of five series modules that are formed by 15 DC/DC series and parallel connected converters in an active BMS.","PeriodicalId":171455,"journal":{"name":"2020 IEEE Applied Power Electronics Conference and Exposition (APEC)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130982676","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
900-V SiC Based, Two-Phase Interleaved, Single Inductor, RSCC DC/DC Converter for Use in 1500VDC PV Application 1500VDC光伏应用中基于900 v SiC的两相交错单电感RSCC DC/DC变换器
2020 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2020-03-01 DOI: 10.1109/APEC39645.2020.9124168
Branislav Stevanović, M. Vasić, P. Alou, J. Cobos
{"title":"900-V SiC Based, Two-Phase Interleaved, Single Inductor, RSCC DC/DC Converter for Use in 1500VDC PV Application","authors":"Branislav Stevanović, M. Vasić, P. Alou, J. Cobos","doi":"10.1109/APEC39645.2020.9124168","DOIUrl":"https://doi.org/10.1109/APEC39645.2020.9124168","url":null,"abstract":"Two-phase interleaved resonant switched capacitor (RSCC) topology with the single resonant inductor in the series with input connection, for use in 1500VDC two-stage PV systems connected to the grid, is presented in this paper. Two switching legs with its resonant capacitors operate in counter phase with 50% of duty cycle. In this way, total capacitance seen by the resonant inductor is doubled, compared to the single-phase case. This behaviour provides the possibility of the reduction of DC bus capacitors volume. Additionally, ripple in the DC bus capacitors is significantly reduced due to the fact that the energy of the resonant inductor is transfered to the output in both halfs of the resonant cycle, compared to the single-phase case. Full ZVS transitions in all 900V SiC devices is obtained, under all loads and input voltage conditions. Model of the resonant current shape that is forced for obtaining ZVS transitions in the switching devices is explained and presented. On the contrary to the previous, simple sinusoidal approximation of the resonant current that can describe the behaviour of the topology only under nominal load, this model can describe the behaviour of the resonant current under all loads and input voltage conditions. This model can be implemented in any kind of the optimization algorythm that is based on the euro efficiency as a performance indice. Additionally, a back-to-back losses measurement technique for voltage-fed converters that operate in open loop is presented. Previously described theoretical analysis of the presented topology is justified by building a 7kW prototype of 99.75% of euro efficiency and 12.1kW/kg of the specific power.","PeriodicalId":171455,"journal":{"name":"2020 IEEE Applied Power Electronics Conference and Exposition (APEC)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127914291","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
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