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A DC wind turbine with integrated storage 集成存储的直流风力涡轮机
2017 National Power Electronics Conference (NPEC) Pub Date : 2017-12-01 DOI: 10.1109/NPEC.2017.8310454
H. Bahirat, B. Mork
{"title":"A DC wind turbine with integrated storage","authors":"H. Bahirat, B. Mork","doi":"10.1109/NPEC.2017.8310454","DOIUrl":"https://doi.org/10.1109/NPEC.2017.8310454","url":null,"abstract":"The dc series and series-parallel wind farms have been recently proposed as alternatives to ac for offshore applications. A dc wind turbine for use in dc series and series-parallel wind farms has been proposed in this paper. The operation of the dc series and series-parallel wind farm results in continuous variation of the output voltage with possibility of losing maximum power point tracking capability (MPPT). A wind turbine (WT) design with back-to-back connection of voltage source converter (VSC) and dual active bridge (DAB) dc-dc converter is proposed. An integrated storage connected to internal dc bus of the turbine with a DAB is also proposed. Simulation results show that the proposed design ensure maximum energy capture during undervoltage and overvoltage operating conditions. The output voltage variation is limited to a range of 0.7 to 1.5 p.u.","PeriodicalId":125885,"journal":{"name":"2017 National Power Electronics Conference (NPEC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129515149","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
Verification of magnetics design considering high power and high frequency effects 考虑高功率和高频效应的磁设计验证
2017 National Power Electronics Conference (NPEC) Pub Date : 2017-12-01 DOI: 10.1109/NPEC.2017.8310473
P. Bharadwaj, V. John
{"title":"Verification of magnetics design considering high power and high frequency effects","authors":"P. Bharadwaj, V. John","doi":"10.1109/NPEC.2017.8310473","DOIUrl":"https://doi.org/10.1109/NPEC.2017.8310473","url":null,"abstract":"Magnetics form an integral part of power electronics based energy conversion systems for power conditioning. However magnetics significantly add to the size and cost of these systems, unless designed for high frequency operations. High frequency designs suffer from higher losses resulting from core and conductors due to increased skin and proximity effects. At higher power levels the cross-sectional area required to handle power is larger, exacerbating the high frequency effects. State-of-the-art high power density converters require thermal-aware designs from reliability perspectives. The challenge lies in designing high frequency magnetics with minimal loss, such that the maximum temperature at higher power densities does not damage the insulation, conductors or the core of the magnetic component. This work represents a systematic thermal-aware design approach for high frequency inductors and transformers, wherein a new method of ac loss prediction for interleaved transformer windings is proposed. All the designs are experimentally verified showing good thermal performance.","PeriodicalId":125885,"journal":{"name":"2017 National Power Electronics Conference (NPEC)","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132232090","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
Design and implementation of symmetric and asymmetric structure for multilevel inverter 多电平逆变器对称与非对称结构的设计与实现
2017 National Power Electronics Conference (NPEC) Pub Date : 2017-12-01 DOI: 10.1109/NPEC.2017.8310430
K. Thakre, K. Mohanty, A. K. Nayak, R. Mishra
{"title":"Design and implementation of symmetric and asymmetric structure for multilevel inverter","authors":"K. Thakre, K. Mohanty, A. K. Nayak, R. Mishra","doi":"10.1109/NPEC.2017.8310430","DOIUrl":"https://doi.org/10.1109/NPEC.2017.8310430","url":null,"abstract":"In this study, a modified structure for cascaded multilevel inverter is presented. The proposed topology can be operate in both symmetrical and asymmetrical manner. The proposed multilevel inverter composed of cascaded basic module with H-bridge. The proposed concept is compared with conventional and some recent multilevel inverter topologies in terms of required number of power electronics switches. Carrier based sinusoidal pulse width modulation control method is developed to achieve switching signals. The performance and operation of proposed inverter is verified through simulation study through MATLAB/Simulink and validated experimentally for 11-level and 15-level inverter.","PeriodicalId":125885,"journal":{"name":"2017 National Power Electronics Conference (NPEC)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115494274","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 gate driver circuit design for SiC MOSFET based three level NPC inverter with reduced high frequency switching noise 基于SiC MOSFET的三电平NPC逆变器栅极驱动电路设计，降低了高频开关噪声
2017 National Power Electronics Conference (NPEC) Pub Date : 2017-12-01 DOI: 10.1109/NPEC.2017.8310456
A. B. Shitole, H. Suryawanshi, G. G. Talapur, Abhishek A. Chanekar
{"title":"A gate driver circuit design for SiC MOSFET based three level NPC inverter with reduced high frequency switching noise","authors":"A. B. Shitole, H. Suryawanshi, G. G. Talapur, Abhishek A. Chanekar","doi":"10.1109/NPEC.2017.8310456","DOIUrl":"https://doi.org/10.1109/NPEC.2017.8310456","url":null,"abstract":"Superior characteristics of silicon carbide (SiC) MOSFETs such as higher breakdown voltage, higher band-gap energy, lower switching losses, lower on-state resistance turns out to be the best alternative to silicon (Si) MOSFETs and Si-IGBTs for high power density converters. However, its low threshold voltage and lower transconductance value increases difficulties in the driver circuit design due to high frequency noise and EMI problems. Therefore, appropriate selection of driver circuit parameters is necessary to avoid high frequency switching losses, noise and EMI effect which further affects the performance of power converters and decreases its efficiency. In this paper, a simple gate driver circuit design for SiC MOSFET based three level diode clamped inverter is presented. Step by step selection procedure of driver circuit components is explained. A 10kVA, three phase, three level inverter is developed and performance of proposed driver circuit in eliminating high frequency noise, rise in the gate-source voltage spikes and electromagnetic interference (EMI) effect is experimentally evaluated.","PeriodicalId":125885,"journal":{"name":"2017 National Power Electronics Conference (NPEC)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123193459","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: 5
Solar PV fed cascaded H-bridge multilevel inverter and SIMO-SEPIC based MPPT controller for 3-phase grid connected system with power quality improvement 太阳能光伏馈联h桥多电平逆变器和基于SIMO-SEPIC的三相并网系统MPPT控制器，改善了电能质量
2017 National Power Electronics Conference (NPEC) Pub Date : 2017-12-01 DOI: 10.1109/NPEC.2017.8310443
C. M. Nirmal Mukundan, P. Jayapraksh
{"title":"Solar PV fed cascaded H-bridge multilevel inverter and SIMO-SEPIC based MPPT controller for 3-phase grid connected system with power quality improvement","authors":"C. M. Nirmal Mukundan, P. Jayapraksh","doi":"10.1109/NPEC.2017.8310443","DOIUrl":"https://doi.org/10.1109/NPEC.2017.8310443","url":null,"abstract":"This paper proposes a new two stage Solar Energy Conversion System (SECS) for grid power support and power quality improvement where extendable symmetric cascaded H-bridge multilevel inverter for grid synchronization and the Single Input Multiple Output Single Ended Primary Inductance Converter (SIMO-SEPIC) for maximum Power point tracking (MPPT) is used. The inverter reference signals are obtained through Synchronous Reference Frame (SRF) control and the gate signal is generated by Phase Disposition Pulse Width Modulation (PD-PWM). The control of SIMO-SEPIC is achieved by Perturb & Observe (P&O) based MPPT algorithm. The SECS is designed for 250kVA, 415V system and the proposed model is tested for 7 level output voltage (line-line). The intensive simulation studies under various load conditions and irradiation variations are carried out using MATLAB with its SIMULINK platform. The steady state and dynamic performance results validate the theoretical findings.","PeriodicalId":125885,"journal":{"name":"2017 National Power Electronics Conference (NPEC)","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127773292","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: 10
A generalized control scheme for automatic resonant frequency tracking 一种自动谐振频率跟踪的广义控制方案
2017 National Power Electronics Conference (NPEC) Pub Date : 2017-12-01 DOI: 10.1109/NPEC.2017.8310459
Utsab Kundu, P. Sensarma
{"title":"A generalized control scheme for automatic resonant frequency tracking","authors":"Utsab Kundu, P. Sensarma","doi":"10.1109/NPEC.2017.8310459","DOIUrl":"https://doi.org/10.1109/NPEC.2017.8310459","url":null,"abstract":"This paper presents a generalized control scheme for automatic resonant frequency tracking (ARFT) in resonant converters. This technique monitors either phase or gain relationship of a state variable pair in the resonant tank to detect frequency drift. Considering an arbitrary n-element tank, the plant model is derived for a realistic frequency ramp caused by slowly varying ambient conditions. A generic procedure is presented not only to choose the most appropriate variable pairs for phase and gain comparison individually but also to make the final choice (phase/gain) of the ARFT approach. This method is applied to a parallel LLC converter to conclusively decide the most accurate ARFT strategy and the corresponding variable pair. Experimental results for steady-state and transient operations are showcased to validate the accuracy of the proposed scheme.","PeriodicalId":125885,"journal":{"name":"2017 National Power Electronics Conference (NPEC)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125135309","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
Design and analysis of a new quadratic boost converter 一种新型二次升压变换器的设计与分析
2017 National Power Electronics Conference (NPEC) Pub Date : 2017-12-01 DOI: 10.1109/NPEC.2017.8310476
M. Veerachary
{"title":"Design and analysis of a new quadratic boost converter","authors":"M. Veerachary","doi":"10.1109/NPEC.2017.8310476","DOIUrl":"https://doi.org/10.1109/NPEC.2017.8310476","url":null,"abstract":"In this paper a new quadratic boost, fifth-order, point of load boost dc-dc converter is proposed. To examine the proposed converter performance, a detailed time-domain and steady-state analysis is presented. Voltage boosting features are established and then the L, C components defining equations are formulated in terms of ripple quantities. The state-space models are derived, for continuous inductor current-mode of operation, and then small-signal analysis is performed to obtain the transfer functions. Later on these transfer functions are used in the digital controller design. The proposed circuit is able to boost the load voltage to a higher value than the conventional quadratic boost converter reported in literature. A 48 V, 50 Watt prototype point of load converter is built to supply the power at constant load voltage. A 12 V dc-battery is used as power source and 50 kHz switching frequency is adopted for the prototype converter operation both in simulation and experimentation. The proposed point of load converter effectiveness is demonstrated both in simulations and experimentation.","PeriodicalId":125885,"journal":{"name":"2017 National Power Electronics Conference (NPEC)","volume":"108 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131133922","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: 7
A control algorithm for energy management and transient mitigation in DC microgrid 直流微电网能量管理与暂态缓解控制算法
2017 National Power Electronics Conference (NPEC) Pub Date : 2017-12-01 DOI: 10.1109/NPEC.2017.8310470
Rohit R. Deshmukh, M. Ballal, H. Suryawanshi, G. G. Talapur
{"title":"A control algorithm for energy management and transient mitigation in DC microgrid","authors":"Rohit R. Deshmukh, M. Ballal, H. Suryawanshi, G. G. Talapur","doi":"10.1109/NPEC.2017.8310470","DOIUrl":"https://doi.org/10.1109/NPEC.2017.8310470","url":null,"abstract":"A microgrid consists of renewable energy sources (RESs), local loads with energy storage system (ESS). For control algorithm in the microgrid system it is mandatory to maintain the system voltage and provide energy management within the microgrid. The control algorithm is developed to provide power compatibility and energy management within different resources in the microgrid. The proposed algorithm maintains the system voltage and provides transient mitigation in operation of microgrid under various power generations and load conditions. The main goal of control algorithm is to reduce power fluctuations on the voltage controlled source in the system with maintaining the state of charge (SoC) for storage system. Furthermore, the control algorithm includes the continuous operation of system with unavailability of main voltage source. The performance of proposed control algorithm is tested with different power generation and load conditions in MATLAB environment and in Real time simulator.","PeriodicalId":125885,"journal":{"name":"2017 National Power Electronics Conference (NPEC)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128126956","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: 10
Power supply systems for defence applications a review part: II power conditioner system 国防用电源系统综述第2部分:电源调节系统
2017 National Power Electronics Conference (NPEC) Pub Date : 2017-12-01 DOI: 10.1109/NPEC.2017.8310472
K. Rathod, Arbind Kumar, G. Waghulde, P. Kurulkar
{"title":"Power supply systems for defence applications a review part: II power conditioner system","authors":"K. Rathod, Arbind Kumar, G. Waghulde, P. Kurulkar","doi":"10.1109/NPEC.2017.8310472","DOIUrl":"https://doi.org/10.1109/NPEC.2017.8310472","url":null,"abstract":"Defense applications require quality electrical power in the form of three phase/single phase AC, 50 Hz/400 Hz and regulated DC power in general in the form of 5/12/24/28/48 V. To full fill these requirements, power conversion systems in the form of UPS, PCS, SMPS are required to be developed. Also various applications require different servo drives for controlled and desired speed / torque applications. Hence it is important to have efficient, compact, and reliable power conversion units with high power density to supply a wide range of loads for Military systems. More and more efforts are required for better power electronic systems in terms of reliability to ensure high availability, long life, sufficient robustness, low maintenance for such applications. Wideband gap devices such as Silicon Carbide (SiC) and Gallium Nitride (GaN) devices in power electronic converters can be used to reduce the device losses in futuristic defense applications. This paper presents the over view, need and requirement, customization and design aspects of power converter systems for defense applications. Some of the case studies on recent developments of such variants of power conditioning systems are also presented in this paper.","PeriodicalId":125885,"journal":{"name":"2017 National Power Electronics Conference (NPEC)","volume":"169 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114744695","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
Adequacy assessment of wind energy conversion system through simulating wind speed using weibull distribution 利用威布尔分布模拟风速对风能转换系统进行充分性评价
2017 National Power Electronics Conference (NPEC) Pub Date : 2017-12-01 DOI: 10.1109/npec.2017.8310442
A. Nayak, K. Mohanty
{"title":"Adequacy assessment of wind energy conversion system through simulating wind speed using weibull distribution","authors":"A. Nayak, K. Mohanty","doi":"10.1109/npec.2017.8310442","DOIUrl":"https://doi.org/10.1109/npec.2017.8310442","url":null,"abstract":"In the electrical power market, nowadays wind energy is becoming a popular alternative to the conventional sources to meet the ever-increasing cumulative power demand due to it's eco-friendly, communal and commercial benefits. Unlike conventional, the electrical power generated from wind energy conversion system (WECS) acts differently as it is solely relying on the wind speed and site-specific. This paper focuses on simulating the behavior of the wind speed using Weibull distribution and calculates the power in associating the power speed characteristic of the wind turbine. The output power of the WECS is segregated to create multi-state WECS model. Adequacy assessment demands two state reliability model to estimate the adequacy of the generating system. Thus the multistate model is reduced to 2 state model using apportioning method and assess the reliability of the WECS. 15 MW wind farm is considered as the case study to validate the efficacy of the proposed methodology.","PeriodicalId":125885,"journal":{"name":"2017 National Power Electronics Conference (NPEC)","volume":"415 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124161524","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: 5
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