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Proceedings of 1995 IEEE Applied Power Electronics Conference and Exposition - APEC'95最新文献

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Utilization of three-phase thyristor-controlled AC/DC converters for reactive power compensation with minimum losses 利用三相晶闸管控制的交流/直流变换器以最小的损耗进行无功补偿
Proceedings of 1995 IEEE Applied Power Electronics Conference and Exposition - APEC'95 Pub Date : 1995-03-05 DOI: 10.1109/APEC.1995.469086
D. A. Deib, H. Hill
{"title":"Utilization of three-phase thyristor-controlled AC/DC converters for reactive power compensation with minimum losses","authors":"D. A. Deib, H. Hill","doi":"10.1109/APEC.1995.469086","DOIUrl":"https://doi.org/10.1109/APEC.1995.469086","url":null,"abstract":"This paper presents a new control method for three-phase, thyristor-controlled reactors for reactive power compensation applications. A conventional AC/DC, three-phase, phase-controlled, bridge power converter is utilized. A relatively small inductance is used for a discontinuous rated inductor current. This results in reducing the inductor size, cost and loss, and greatly reduces the power converter switching losses. Experimental results are shown to demonstrate the validity of the proposed method.<<ETX>>","PeriodicalId":335367,"journal":{"name":"Proceedings of 1995 IEEE Applied Power Electronics Conference and Exposition - APEC'95","volume":"80 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124107555","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
The wireless industry-a PSMA market study 无线产业——PSMA市场研究
Proceedings of 1995 IEEE Applied Power Electronics Conference and Exposition - APEC'95 Pub Date : 1995-03-05 DOI: 10.1109/APEC.1995.469024
J. M. Fletcher, J.J. Horzepa
{"title":"The wireless industry-a PSMA market study","authors":"J. M. Fletcher, J.J. Horzepa","doi":"10.1109/APEC.1995.469024","DOIUrl":"https://doi.org/10.1109/APEC.1995.469024","url":null,"abstract":"Wireless technology will play a significant role in the development of the \"information superhighway\". Most industry forecasts see the wireless market continuing to grow at it's current rate over the next several years with some predicting that half of all communications will involve a wireless component within the next ten years. This rapid growth within the wireless telecom market segment coupled with the technology changes in the industry is resulting in shorter product life cycles, reduced prices, rapid manufacturing ramps and demand for higher quality products in order for the wireless equipment suppliers to compete for market share. These pressures, in turn, provide a challenging opportunity for manufacturers of power products. There are eleven attributes that are important to the wireless equipment providers when evaluating suppliers of power products. Based on study results as reported in this paper, there are significant improvements that must be made before providers of power products can meet the stringent expectations embodied in these attributes. The OEMs will continue to expect more from their suppliers in terms of solutions to their power problems, e.g.. products with increased functionality, reduced costs, improved delivery and closer communications.<<ETX>>","PeriodicalId":335367,"journal":{"name":"Proceedings of 1995 IEEE Applied Power Electronics Conference and Exposition - APEC'95","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128020419","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
Analysis and design of an active ripple filter for DC-DC applications 用于DC-DC应用的有源纹波滤波器的分析与设计
Proceedings of 1995 IEEE Applied Power Electronics Conference and Exposition - APEC'95 Pub Date : 1995-03-05 DOI: 10.1109/APEC.1995.468961
D. C. Hamill, Ong Tiam Toh
{"title":"Analysis and design of an active ripple filter for DC-DC applications","authors":"D. C. Hamill, Ong Tiam Toh","doi":"10.1109/APEC.1995.468961","DOIUrl":"https://doi.org/10.1109/APEC.1995.468961","url":null,"abstract":"When low ripple is required from a DC-DC converter, active filters offer an alternative to passive LC and coupled inductor filters. A simple experimental active ripple filter is presented, which employs a pair of current transformers as sensors for feedforward and feedback control and two MOSFETs as cancellation current drivers. Measurements demonstrate good ripple attenuation: more than 70 dB at 100 kHz, and 23 dB at 1 MHz. The overall efficiency was measured as 95%, but could be improved by attention to the auxiliary supplies to around 98%. The filter is suitable for input and output smoothing in aerospace and other critical applications.<<ETX>>","PeriodicalId":335367,"journal":{"name":"Proceedings of 1995 IEEE Applied Power Electronics Conference and Exposition - APEC'95","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134113667","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
Soft switching active snubbers for DC/DC converters 用于DC/DC变换器的软开关有源缓冲器
Proceedings of 1995 IEEE Applied Power Electronics Conference and Exposition - APEC'95 Pub Date : 1995-03-05 DOI: 10.1109/APEC.1995.468991
A. Elasser, D. Torrey
{"title":"Soft switching active snubbers for DC/DC converters","authors":"A. Elasser, D. Torrey","doi":"10.1109/APEC.1995.468991","DOIUrl":"https://doi.org/10.1109/APEC.1995.468991","url":null,"abstract":"A soft switching active snubber is proposed to reduce the turn-off losses of the IGBT in a current-mode controlled buck power converter. The soft switching snubber provides zero-voltage switching for the IGBT, thereby reducing the high turn-off losses of the IGBT due to the current tailing. The proposed snubber uses an auxiliary switch to discharge the snubber capacitor. This auxiliary switch also operates at zero-voltage and zero-current switching. The size of the auxiliary switch compared to the main switch makes this snubber a good alternative to the conventional snubber or even to passive low-loss snubbers. The use of the soft switching active snubber permits the IGBT to operate at high frequencies, with low EMI and an improved RBSOA. The use of an active snubber allows recovery of part of the energy stored in the snubber capacitor during the turn-off. Finally, a generic snubber cell is identified for all the nonisolated DC/DC power converters (buck, boost, buck-boost, Cuk, Sepic, Zeta).<<ETX>>","PeriodicalId":335367,"journal":{"name":"Proceedings of 1995 IEEE Applied Power Electronics Conference and Exposition - APEC'95","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130899494","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: 118
High frequency, low cost, power packaging using thin film power overlay technology 高频、低成本，功率封装采用薄膜功率叠加技术
Proceedings of 1995 IEEE Applied Power Electronics Conference and Exposition - APEC'95 Pub Date : 1995-03-05 DOI: 10.1109/APEC.1995.468955
R. Fisher, R. Fillion, J. Burgess, W. Hennessy
{"title":"High frequency, low cost, power packaging using thin film power overlay technology","authors":"R. Fisher, R. Fillion, J. Burgess, W. Hennessy","doi":"10.1109/APEC.1995.468955","DOIUrl":"https://doi.org/10.1109/APEC.1995.468955","url":null,"abstract":"The improved performance of high power circuits are achieved using an innovative embedded chip MCM technology for power applications. This power package development is based upon an extension of a thin film MCM process which replaces the parasitic limiting wirebonds of hybrid power circuits and the package limiting SMT power circuits with low impedance, multilayer metal interconnects. This paper describes the thin film power overlay technology and how this package structure improves electrical, thermal, and reliability performance.<<ETX>>","PeriodicalId":335367,"journal":{"name":"Proceedings of 1995 IEEE Applied Power Electronics Conference and Exposition - APEC'95","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130842205","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: 81
A new overmodulation strategy for induction motor drive using space vector PWM 一种基于空间矢量PWM的异步电机过调制策略
Proceedings of 1995 IEEE Applied Power Electronics Conference and Exposition - APEC'95 Pub Date : 1995-03-05 DOI: 10.1109/APEC.1995.469022
J. Seok, S. Sul
{"title":"A new overmodulation strategy for induction motor drive using space vector PWM","authors":"J. Seok, S. Sul","doi":"10.1109/APEC.1995.469022","DOIUrl":"https://doi.org/10.1109/APEC.1995.469022","url":null,"abstract":"In the overmodulation region, the operation of the three phase induction motor with a current controller is characterized by a rapid deterioration of the motor torque and speed. It is desirable to use the overmodulation strategy that can extend the normal operating range even in this case. In this paper, a new overmodulation strategy is proposed for the high performance motor drive and a comparison study with two conventional strategies are also described. In the proposed strategy, considering the motor dynamics, a suitable voltage vector is selected in order to extend the stable operating range in the overmodulation region. With this advanced algorithm, the normal operating range can be extended without any extra hardware. From the experimental results, it is verified that the proposed strategy provided the improved performance over the conventional strategies.<<ETX>>","PeriodicalId":335367,"journal":{"name":"Proceedings of 1995 IEEE Applied Power Electronics Conference and Exposition - APEC'95","volume":"173 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133038780","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: 39
Low-temperature operation of a buck DC/DC converter 降压DC/DC变换器的低温工作
Proceedings of 1995 IEEE Applied Power Electronics Conference and Exposition - APEC'95 Pub Date : 1995-03-05 DOI: 10.1109/APEC.1995.469053
B. Ray, S. Gerber, Richard L. Patterson, I. T. Myers
{"title":"Low-temperature operation of a buck DC/DC converter","authors":"B. Ray, S. Gerber, Richard L. Patterson, I. T. Myers","doi":"10.1109/APEC.1995.469053","DOIUrl":"https://doi.org/10.1109/APEC.1995.469053","url":null,"abstract":"Low-temperature (77 K) operation of a 42/28 V, 175 W, 50 kHz PWM buck DC/DC power converter designed with commercially available components is reported. Overall, the power converter losses decreased at 77 K compared to room temperature operation. A full-load efficiency of 97% was recorded at liquid-nitrogen temperature, compared to 95.8% at room temperature. Power MOSFET operation improved significantly whereas the output rectifier operation deteriorated at low-temperature. The performance of the output filter inductor and capacitor did not change significantly at 77 K compared to room temperature performance. It is possible to achieve high-density and high efficiency power conversion at low-temperatures due to improved electronic, electrical and thermal properties of materials.<<ETX>>","PeriodicalId":335367,"journal":{"name":"Proceedings of 1995 IEEE Applied Power Electronics Conference and Exposition - APEC'95","volume":"64 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133357630","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: 13
Average and small signal modeling of zero-voltage transition three-phase PWM boost rectifier 零电压过渡三相PWM升压整流器的平均和小信号建模
Proceedings of 1995 IEEE Applied Power Electronics Conference and Exposition - APEC'95 Pub Date : 1995-03-05 DOI: 10.1109/APEC.1995.469043
R. Ambatipudi, D. Boroyevich, Silva Hiti, F. Lee
{"title":"Average and small signal modeling of zero-voltage transition three-phase PWM boost rectifier","authors":"R. Ambatipudi, D. Boroyevich, Silva Hiti, F. Lee","doi":"10.1109/APEC.1995.469043","DOIUrl":"https://doi.org/10.1109/APEC.1995.469043","url":null,"abstract":"Average and small signal modeling of a zero-voltage switching three-phase boost rectifier is performed. The effect of ZVS is introduced in the existing model for the three-phase boost rectifier using the time-averaging equivalent circuit approach. The small signal model is derived from the average model. The small signal characteristics are compared to the corresponding characteristics without ZVS.<<ETX>>","PeriodicalId":335367,"journal":{"name":"Proceedings of 1995 IEEE Applied Power Electronics Conference and Exposition - APEC'95","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124255562","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
Power-factor correction in bridge and voltage-doubler rectifier circuits with inductors and capacitors 带电感和电容的桥式和倍压整流电路中的功率因数校正
Proceedings of 1995 IEEE Applied Power Electronics Conference and Exposition - APEC'95 Pub Date : 1995-03-05 DOI: 10.1109/APEC.1995.468989
R. Redl, L. Balogh
{"title":"Power-factor correction in bridge and voltage-doubler rectifier circuits with inductors and capacitors","authors":"R. Redl, L. Balogh","doi":"10.1109/APEC.1995.468989","DOIUrl":"https://doi.org/10.1109/APEC.1995.468989","url":null,"abstract":"To improve the power factor and to comply with line-harmonics regulations, a power-factor-correction/line-harmonics-reduction circuit must be added to the capacitively filtered bridge or voltage-doubler rectifier. Passive solutions (i.e. circuits using only inductors and capacitors) are simple, reliable, and generate no EMI. In this paper we discuss single-phase rectifier circuits employing an additional inductor and one or more additional capacitors for power-factor correction.<<ETX>>","PeriodicalId":335367,"journal":{"name":"Proceedings of 1995 IEEE Applied Power Electronics Conference and Exposition - APEC'95","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114623523","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: 41
Quasi-behavioral model of a voltage fed inverter suitable for controller development 适用于控制器开发的电压型逆变器准行为模型
Proceedings of 1995 IEEE Applied Power Electronics Conference and Exposition - APEC'95 Pub Date : 1995-03-05 DOI: 10.1109/APEC.1995.469017
R. Sepe
{"title":"Quasi-behavioral model of a voltage fed inverter suitable for controller development","authors":"R. Sepe","doi":"10.1109/APEC.1995.469017","DOIUrl":"https://doi.org/10.1109/APEC.1995.469017","url":null,"abstract":"This paper develops a quasi-behavioral model of a voltage fed inverter that includes the effects of inverter deadtime, parasitic capacitances, flyback diode conduction, and switching and conduction losses. Detailed cycle-by-cycle waveforms are generated using discrete state machines, negating the need to solve device-level or idealized circuit equations. The inverter model is constructed in the commercially available MatrixX simulation environment and can readily be incorporated into closed-loop current controller simulations. Experimental results verify the switching performance of the quasi-behavioral inverter model and indicate its effectiveness as part of a closed-loop current controlled system.<<ETX>>","PeriodicalId":335367,"journal":{"name":"Proceedings of 1995 IEEE Applied Power Electronics Conference and Exposition - APEC'95","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121911059","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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