2009 Twenty-Fourth Annual IEEE Applied Power Electronics Conference and Exposition最新文献_第9页

Control Scheme for High-Efficiency High-Performance Two-Stage Power Converters 高效高性能两级电源变换器的控制方案

2009 Twenty-Fourth Annual IEEE Applied Power Electronics Conference and Exposition Pub Date : 2009-03-21 DOI: 10.1109/APEC.2009.4802820

J. Qahouq, G. Muralidhar

引用次数: 7

Speed Sensorless Vector Control Induction Motor Drives Fed by Cascaded Neutral Point Clamped Inverter 无速度传感器矢量控制感应电机驱动由级联中性点箝位逆变器馈电

2009 Twenty-Fourth Annual IEEE Applied Power Electronics Conference and Exposition Pub Date : 2009-03-21 DOI: 10.1109/APEC.2009.4802946

G. Baoming, F. Peng

{"title":"Speed Sensorless Vector Control Induction Motor Drives Fed by Cascaded Neutral Point Clamped Inverter","authors":"G. Baoming, F. Peng","doi":"10.1109/APEC.2009.4802946","DOIUrl":"https://doi.org/10.1109/APEC.2009.4802946","url":null,"abstract":"An effective control solution for speed sensorless vector control of induction motor fed by a cascaded neutral point clamped (NPC) inverter is proposed, where the novel SPWM pulse rotation control approach provides a simple way to implement vector control for induction motor when the cascaded NPC inverter is employed. The single carrier is used in the novel pulse control, instead of the multi-carriers, which makes the voltage modulation simpler and the hardware burden decrease. It is of great benefits to the cascaded NPC inverter, i.e., the output voltages and powers of all inverter modules, and two series-capacitor dc voltages of each inverter module are perfectly balanced, and a low switch frequency of all inverter modules provides a synthesized high frequency PWM phase voltage. A rotor flux-oriented vector control is combined with back EMF-based MRAS speed estimation, which results in a speed closed-loop control. The voltage sensors together with the filters of changeable parameters ensure the precision of speed estimation for the whole frequency range. The proposed scheme is applied to control an 800kW 4160V induction motor fed by the 1MVA 6000V 17-level cascaded NPC inverter, where the controller mainly consists of one DSP and one CPLD. The experimental results verify the proposed scheme.","PeriodicalId":200366,"journal":{"name":"2009 Twenty-Fourth Annual IEEE Applied Power Electronics Conference and Exposition","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130900676","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

Analyzing and Compensating for Rotor Time Constant Variation in Induction Machines at Flux-Weakening Operations 感应电机弱磁运行时转子时间常数变化的分析与补偿

2009 Twenty-Fourth Annual IEEE Applied Power Electronics Conference and Exposition Pub Date : 2009-03-21 DOI: 10.1109/APEC.2009.4802655

X. Nan, B. Arnet

引用次数: 0

Magnetic Material Selection for High Power High Frequency Inductors in DC-DC Converters DC-DC变换器中大功率高频电感的磁性材料选择

2009 Twenty-Fourth Annual IEEE Applied Power Electronics Conference and Exposition Pub Date : 2009-03-21 DOI: 10.1109/APEC.2009.4802955

M. Ryłko, K. J. Hartnett, J. Hayes, M. Egan

{"title":"Magnetic Material Selection for High Power High Frequency Inductors in DC-DC Converters","authors":"M. Ryłko, K. J. Hartnett, J. Hayes, M. Egan","doi":"10.1109/APEC.2009.4802955","DOIUrl":"https://doi.org/10.1109/APEC.2009.4802955","url":null,"abstract":"Dc-dc converter size and efficiency are driving factors in industrial, aerospace and automotive applications. Thus, optimal component selection is essential for a compact design. The inductor often appears as the converter's largest component. This paper presents analytical and experimental comparisons of the magnetic materials used in a practical design. The investigation is concerned with magnetic material selection for a dc-dc power inductor in the medium (20 kHz) to high (150 kHz) frequency range and the low (1%) to high (220%) current ripple range. The materials under investigation are iron-based amorphous metal, silicon steel, nanocrystalline, ferrite, powdered iron and gap-less powder materials. A newly developed silicon steel material from JFE-Steel Co. is presented. A novel material comparison which includes thermal conductivity and saturation capability is proposed. The area product analysis for material comparison is presented for 10 kW dc-dc inductor design examples. The variation of core power loss with dc-bias is experimentally investigated for different materials. A 1.25 kW half-bridge dc-dc converter is used in experimental validation.","PeriodicalId":200366,"journal":{"name":"2009 Twenty-Fourth Annual IEEE Applied Power Electronics Conference and Exposition","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123751821","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: 90

A New Dimming Method for Highly Integrated Fluorescent Ballast 一种高集成度荧光镇流器调光新方法

2009 Twenty-Fourth Annual IEEE Applied Power Electronics Conference and Exposition Pub Date : 2009-03-21 DOI: 10.1109/APEC.2009.4802874

Zan Huang, T. Ribarich

引用次数: 0

Active Inductor Current Balancing for Interleaving Multi-Phase Buck-Boost Converter 交错多相降压变换器有源电感电流平衡

2009 Twenty-Fourth Annual IEEE Applied Power Electronics Conference and Exposition Pub Date : 2009-03-21 DOI: 10.1109/APEC.2009.4802708

S. Angkititrakul, H. Hu, Z. Liang

引用次数: 20

A Novel SVPWM Modulation Scheme 一种新的SVPWM调制方案

2009 Twenty-Fourth Annual IEEE Applied Power Electronics Conference and Exposition Pub Date : 2009-03-21 DOI: 10.1109/APEC.2009.4802644

Yinhai Zhang, Songsong Wang, Haixia Xia, Jinfa Ge

引用次数: 47

Digital Phase Control of an Integrated Resonant Igniter Using a Soft Saturation Core for High Intensity Discharge Lamps 高强度放电灯用软饱和核集成谐振点火器的数字相位控制

2009 Twenty-Fourth Annual IEEE Applied Power Electronics Conference and Exposition Pub Date : 2009-03-21 DOI: 10.1109/APEC.2009.4802869

R. Schnell, J. Díaz, C. Brañas, F. Azcondo, R. Zane

{"title":"Digital Phase Control of an Integrated Resonant Igniter Using a Soft Saturation Core for High Intensity Discharge Lamps","authors":"R. Schnell, J. Díaz, C. Brañas, F. Azcondo, R. Zane","doi":"10.1109/APEC.2009.4802869","DOIUrl":"https://doi.org/10.1109/APEC.2009.4802869","url":null,"abstract":"The paper proposes a robust resonant ignition technique for low frequency square wave (LFSW) ballasts without requiring additional igniter components or increase in component size or weight. The LC filter of the LFSW ballast is used at start-up in a resonant mode for lamp ignition. In order to achieve the high voltage gain required for lamp ignition, significantly higher current and volt-seconds are imposed on the filter inductor during resonant ignition than in steady-state LFSW operation. The proposed solution uses a Kool Mu soft saturation inductor core material to prevent core saturation during ignition without requiring an increase in core size or weight from the design for steady-state LFSW operation. A digital phase controller is used during the ignition sequence to gradually sweep the phase lag of the inductor current from 90° down towards resonance. This results in a robust ignition sequence while maintaining zero voltage switching despite variations of inductance value in the presence of soft saturation core dynamics. Experimental results are presented to demonstrate reliable ignition of 150 W metal halide (MH) and 150 W high pressure sodium (HPS) lamps using the proposed techniques.","PeriodicalId":200366,"journal":{"name":"2009 Twenty-Fourth Annual IEEE Applied Power Electronics Conference and Exposition","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127466577","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

Digital Control of Resonant Converters: Enhancing Frequency Resolution by Dithering 谐振变换器的数字控制:通过抖动提高频率分辨率

2009 Twenty-Fourth Annual IEEE Applied Power Electronics Conference and Exposition Pub Date : 2009-03-21 DOI: 10.1080/00207217.2014.896037

M. Peretz, S. Ben-Yaakov

{"title":"Digital Control of Resonant Converters: Enhancing Frequency Resolution by Dithering","authors":"M. Peretz, S. Ben-Yaakov","doi":"10.1080/00207217.2014.896037","DOIUrl":"https://doi.org/10.1080/00207217.2014.896037","url":null,"abstract":"Resonant converters and related systems, such as piezoelectric transformers, may require a high-resolution frequency drive when the quality factor of the network is high or to avoid limit cycle oscillations. This high frequency resolution requirement could be beyond the capabilities of low cost microcontrollers. To remedy this problem, a frequency resolution enhancement algorithm was developed, tested by simulations and verified experimentally. The proposed approach is based on a modification of the fractional-N dithering concept and includes an adaptive dithering period and smooth DPWM frequency transitions. The implementation of the approach on the digital hardware is simple and requires modest additional workload from the CPU. Theoretical analysis was carried out to model the proposed dithering method when applied to drive resonant network in order to identify the causes and to quantify the expected output signal distortion when the signal is used to drive resonant networks. The proposed approach was tested experimentally on two types of resonant converters: a series-resonant parallel-loaded converter and a piezoelectric transformer. It was found that the output signal distortion is less than 1% of the peak amplitude of the output drive which would be acceptable in many applications. The experimental results were found to be in excellent agreement with the theoretical predictions, validating the usefulness of the dithering method as a frequency resolution enhancer for resonant network drive.","PeriodicalId":200366,"journal":{"name":"2009 Twenty-Fourth Annual IEEE Applied Power Electronics Conference and Exposition","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129096321","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: 17

Current Sensorless Power Factor Correction based on Digital Current Rebuilding 基于数字电流重建的无电流传感器功率因数校正

2009 Twenty-Fourth Annual IEEE Applied Power Electronics Conference and Exposition Pub Date : 2009-03-21 DOI: 10.1109/APEC.2009.4802749

F. Azcondo, Á. de Castro, F. J. Díaz, Ó. García

引用次数: 3