Pub Date : 1999-03-14DOI: 10.1109/APEC.1999.750461
W. Shireen, M. Arefeen, D. Figoli
Traditionally the cost sensitive motor drive market has forced designers to avoid DSP controllers for their drive designs. However, several factors are rapidly changing this scenario. The prices of DSPs have dropped from hundreds of dollars to approximately three dollars since their introduction in the early 1980s. Moreover, DSPs can now integrate a variety of sophisticated peripherals. This integration of a DSP core with a set of useful peripherals significantly simplifies the design. At the same time, cost sensitive drives like HVAC appliances are starting to utilize variable speed drives to maximize efficiency and comfort for the user. Many of these applications have more than one motor; for example, a typical HVAC system usually utilizes two motors. Until now, these motors were mainly operated at a fixed speed or at a set number of multiple speeds to minimize cost. This paper shows the advantages of using DSP controllers for such applications. It is shown that these controllers provide a true single chip solution for these drives.
{"title":"Controlling multiple motors utilizing a single DSP controller","authors":"W. Shireen, M. Arefeen, D. Figoli","doi":"10.1109/APEC.1999.750461","DOIUrl":"https://doi.org/10.1109/APEC.1999.750461","url":null,"abstract":"Traditionally the cost sensitive motor drive market has forced designers to avoid DSP controllers for their drive designs. However, several factors are rapidly changing this scenario. The prices of DSPs have dropped from hundreds of dollars to approximately three dollars since their introduction in the early 1980s. Moreover, DSPs can now integrate a variety of sophisticated peripherals. This integration of a DSP core with a set of useful peripherals significantly simplifies the design. At the same time, cost sensitive drives like HVAC appliances are starting to utilize variable speed drives to maximize efficiency and comfort for the user. Many of these applications have more than one motor; for example, a typical HVAC system usually utilizes two motors. Until now, these motors were mainly operated at a fixed speed or at a set number of multiple speeds to minimize cost. This paper shows the advantages of using DSP controllers for such applications. It is shown that these controllers provide a true single chip solution for these drives.","PeriodicalId":287192,"journal":{"name":"APEC '99. Fourteenth Annual Applied Power Electronics Conference and Exposition. 1999 Conference Proceedings (Cat. No.99CH36285)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126951877","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}
Pub Date : 1999-03-14DOI: 10.1109/APEC.1999.749649
L. Amoroso, M. Donati, X. Zhou, F. Lee
Future generation microprocessors are predicted to exhibit heavier loads and faster transients. Conventional voltage regulator modules (VRM) need a large amount of output filter capacitors to meet future requirements and a huge number of decoupling capacitors, mainly due to the presence of parasitic inductance between the VRM and the microprocessor. In this paper, a new active damp concept is presented. By charging some auxiliary capacitors at higher voltage, it is possible to store the amount of charge required by the processor during the step up transient; this extra charge can be locally delivered to the processor in a single shot manner, bypassing the slower VRM. In the same way, this circuit can sink the excess of charge that has to be removed during the step down transient. By using this transient suppressor circuit, a conventional VRM can still provide adequate steady state regulation, while the size of decoupling and filter capacitors can be significantly reduced. Experimental results prove the validity of the concept.
{"title":"Single shot transient suppressor (SSTS) for high current high slew rate microprocessor","authors":"L. Amoroso, M. Donati, X. Zhou, F. Lee","doi":"10.1109/APEC.1999.749649","DOIUrl":"https://doi.org/10.1109/APEC.1999.749649","url":null,"abstract":"Future generation microprocessors are predicted to exhibit heavier loads and faster transients. Conventional voltage regulator modules (VRM) need a large amount of output filter capacitors to meet future requirements and a huge number of decoupling capacitors, mainly due to the presence of parasitic inductance between the VRM and the microprocessor. In this paper, a new active damp concept is presented. By charging some auxiliary capacitors at higher voltage, it is possible to store the amount of charge required by the processor during the step up transient; this extra charge can be locally delivered to the processor in a single shot manner, bypassing the slower VRM. In the same way, this circuit can sink the excess of charge that has to be removed during the step down transient. By using this transient suppressor circuit, a conventional VRM can still provide adequate steady state regulation, while the size of decoupling and filter capacitors can be significantly reduced. Experimental results prove the validity of the concept.","PeriodicalId":287192,"journal":{"name":"APEC '99. Fourteenth Annual Applied Power Electronics Conference and Exposition. 1999 Conference Proceedings (Cat. No.99CH36285)","volume":"102 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122309039","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}
Pub Date : 1999-03-14DOI: 10.1109/APEC.1999.749720
Jung-Woo Park, D. Koo, Jong-Moo Kim, Heung-Geun Kim
This paper describes a development of drive unit for 2-motor driven electric vehicle (EV). The drive unit is consisted with a traction controller, an interior permanent magnet synchronous motor (IPMSM), a reduction gear and an inverter for an electric vehicle that is driven by 2 motors without differential gear. For the drive unit, a traction controller, IPMSM and inverter have been developed. To verify that the drive unit has advanced dynamic characteristics, higher efficiency and higher power density than a drive unit adapted with an induction motor with the same specification, the authors show results of the design and experiments of the drive unit.
{"title":"High performance drive unit for 2-motor driven electric vehicle","authors":"Jung-Woo Park, D. Koo, Jong-Moo Kim, Heung-Geun Kim","doi":"10.1109/APEC.1999.749720","DOIUrl":"https://doi.org/10.1109/APEC.1999.749720","url":null,"abstract":"This paper describes a development of drive unit for 2-motor driven electric vehicle (EV). The drive unit is consisted with a traction controller, an interior permanent magnet synchronous motor (IPMSM), a reduction gear and an inverter for an electric vehicle that is driven by 2 motors without differential gear. For the drive unit, a traction controller, IPMSM and inverter have been developed. To verify that the drive unit has advanced dynamic characteristics, higher efficiency and higher power density than a drive unit adapted with an induction motor with the same specification, the authors show results of the design and experiments of the drive unit.","PeriodicalId":287192,"journal":{"name":"APEC '99. Fourteenth Annual Applied Power Electronics Conference and Exposition. 1999 Conference Proceedings (Cat. No.99CH36285)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126944809","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}
Pub Date : 1999-03-14DOI: 10.1109/APEC.1999.749489
S. Navarro, E. Mabe, M. Soraya
To help align military power supply systems requirements with commercial resources, a Power Supply System Consortium was formed early in 1998, by the government and several defense contractors. The need to align was acknowledged by both the government and by the contractors. The technical challenges in military use of commercial resources, the accomplishments of the consortium, as well as the methods employed to facilitate the realization of this alignment are presented.
{"title":"Aligning military requirements for power supply systems with commercial resources","authors":"S. Navarro, E. Mabe, M. Soraya","doi":"10.1109/APEC.1999.749489","DOIUrl":"https://doi.org/10.1109/APEC.1999.749489","url":null,"abstract":"To help align military power supply systems requirements with commercial resources, a Power Supply System Consortium was formed early in 1998, by the government and several defense contractors. The need to align was acknowledged by both the government and by the contractors. The technical challenges in military use of commercial resources, the accomplishments of the consortium, as well as the methods employed to facilitate the realization of this alignment are presented.","PeriodicalId":287192,"journal":{"name":"APEC '99. Fourteenth Annual Applied Power Electronics Conference and Exposition. 1999 Conference Proceedings (Cat. No.99CH36285)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127130818","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}
Pub Date : 1999-03-14DOI: 10.1109/APEC.1999.750460
J.D. Ma, Bin Wu, N. Zargari
A space vector controlled CSI drive for multiple induction motor loads is presented in this paper. The proposed control scheme includes an active damping control, two feedforward controls and an online space vector control, which result in improved system stability and dynamic performance. The simulation results indicate that the proposed system has a superior voltage regulation in both transient and steady states. It is also demonstrated that the LC resonance between the output capacitor and the motor can be effectively suppressed through the proposed active damping control. All these improvements make the proposed CSI drive suitable for multi-motor applications. The proposed drive has the added advantage of having sinusoidal current and voltage waveforms. In addition, the drive can be implemented at high-power (1000-10,000 hp) levels due to the use of the CSI topology and low switching frequencies (typically 600 Hz).
{"title":"A space vector modulated CSI-based AC drive for multi-motor applications","authors":"J.D. Ma, Bin Wu, N. Zargari","doi":"10.1109/APEC.1999.750460","DOIUrl":"https://doi.org/10.1109/APEC.1999.750460","url":null,"abstract":"A space vector controlled CSI drive for multiple induction motor loads is presented in this paper. The proposed control scheme includes an active damping control, two feedforward controls and an online space vector control, which result in improved system stability and dynamic performance. The simulation results indicate that the proposed system has a superior voltage regulation in both transient and steady states. It is also demonstrated that the LC resonance between the output capacitor and the motor can be effectively suppressed through the proposed active damping control. All these improvements make the proposed CSI drive suitable for multi-motor applications. The proposed drive has the added advantage of having sinusoidal current and voltage waveforms. In addition, the drive can be implemented at high-power (1000-10,000 hp) levels due to the use of the CSI topology and low switching frequencies (typically 600 Hz).","PeriodicalId":287192,"journal":{"name":"APEC '99. Fourteenth Annual Applied Power Electronics Conference and Exposition. 1999 Conference Proceedings (Cat. No.99CH36285)","volume":"60 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132869483","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}
Pub Date : 1999-03-14DOI: 10.1109/APEC.1999.750490
S. Bibian, H. Jin
Two predictive schemes based on a linear extrapolation technique are developed to compensate the sampling time delay present in digital control, thus increasing the bandwidth of the control loop. Characterized by a low computational effort, these schemes are perfectly suited for fast systems such as high-performance DC switchmode power supplies. Results with and without the proposed prediction schemes are provided for comparison.
{"title":"A simple prediction technique for the compensation of digital control time delay in DC switchmode power supplies","authors":"S. Bibian, H. Jin","doi":"10.1109/APEC.1999.750490","DOIUrl":"https://doi.org/10.1109/APEC.1999.750490","url":null,"abstract":"Two predictive schemes based on a linear extrapolation technique are developed to compensate the sampling time delay present in digital control, thus increasing the bandwidth of the control loop. Characterized by a low computational effort, these schemes are perfectly suited for fast systems such as high-performance DC switchmode power supplies. Results with and without the proposed prediction schemes are provided for comparison.","PeriodicalId":287192,"journal":{"name":"APEC '99. Fourteenth Annual Applied Power Electronics Conference and Exposition. 1999 Conference Proceedings (Cat. No.99CH36285)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122966388","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}
Pub Date : 1999-03-14DOI: 10.1109/APEC.1999.750508
R. L. Newsom, W. Dillard, R. Nelms
A capacitor charging power supply with power factor correction operating from a 120 V AC source is presented. The supply consists of a flyback converter, analog to TTL-compatible interface circuitry and a digital control system implemented using standard TTL logic components. A 300-V prototype has been constructed and tested.
{"title":"A capacitor charging power supply utilizing digital logic for power factor correction","authors":"R. L. Newsom, W. Dillard, R. Nelms","doi":"10.1109/APEC.1999.750508","DOIUrl":"https://doi.org/10.1109/APEC.1999.750508","url":null,"abstract":"A capacitor charging power supply with power factor correction operating from a 120 V AC source is presented. The supply consists of a flyback converter, analog to TTL-compatible interface circuitry and a digital control system implemented using standard TTL logic components. A 300-V prototype has been constructed and tested.","PeriodicalId":287192,"journal":{"name":"APEC '99. Fourteenth Annual Applied Power Electronics Conference and Exposition. 1999 Conference Proceedings (Cat. No.99CH36285)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123905227","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}
Pub Date : 1999-03-14DOI: 10.1109/APEC.1999.750472
Y. Jang, M. Jovanovic
A new input-voltage feedforward harmonic-injection technique for a single-switch, three-phase, discontinuous-conduction-mode boost rectifier is introduced. With this technique, rectification with a low total harmonic distortion that meets the IEC555-2 requirements can be achieved. In addition, the rectifier shows an excellent transient performance which dramatically reduces the rectifier's output voltage overshoots during line-voltage step-up transients. Moreover by the addition of a nonlinear gain-control circuit, the DC gain of the DCM boost rectifier at light load is adaptively reduced so that the stability of the rectifier at light load is achieved. The performance of the proposed injection technique was verified on a 6 kW prototype rectifier.
{"title":"A new input-voltage feedforward harmonic-injection technique with nonlinear gain control for single-switch, three-phase, DCM boost rectifiers","authors":"Y. Jang, M. Jovanovic","doi":"10.1109/APEC.1999.750472","DOIUrl":"https://doi.org/10.1109/APEC.1999.750472","url":null,"abstract":"A new input-voltage feedforward harmonic-injection technique for a single-switch, three-phase, discontinuous-conduction-mode boost rectifier is introduced. With this technique, rectification with a low total harmonic distortion that meets the IEC555-2 requirements can be achieved. In addition, the rectifier shows an excellent transient performance which dramatically reduces the rectifier's output voltage overshoots during line-voltage step-up transients. Moreover by the addition of a nonlinear gain-control circuit, the DC gain of the DCM boost rectifier at light load is adaptively reduced so that the stability of the rectifier at light load is achieved. The performance of the proposed injection technique was verified on a 6 kW prototype rectifier.","PeriodicalId":287192,"journal":{"name":"APEC '99. Fourteenth Annual Applied Power Electronics Conference and Exposition. 1999 Conference Proceedings (Cat. No.99CH36285)","volume":"103 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116019831","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}
Pub Date : 1999-03-14DOI: 10.1109/APEC.1999.750494
Xiaoming Yuan, I. Barbi
This paper discusses a modified PWM zero voltage switching pole inverter which allows for zero voltage switching of the main switch and zero current switching of the auxiliary switch. The proposal features simplified control and reduced auxiliary circuit stress in comparison with the auxiliary-resonant-commutated-pole-inverter (ARCPI). Operation and design aspects of the proposal are detailed in the paper. The proposal is verified by a 4.5 kW IGBT half bridge prototype.
{"title":"Control simplification and stress reduction in a modified PWM zero voltage switching pole inverter","authors":"Xiaoming Yuan, I. Barbi","doi":"10.1109/APEC.1999.750494","DOIUrl":"https://doi.org/10.1109/APEC.1999.750494","url":null,"abstract":"This paper discusses a modified PWM zero voltage switching pole inverter which allows for zero voltage switching of the main switch and zero current switching of the auxiliary switch. The proposal features simplified control and reduced auxiliary circuit stress in comparison with the auxiliary-resonant-commutated-pole-inverter (ARCPI). Operation and design aspects of the proposal are detailed in the paper. The proposal is verified by a 4.5 kW IGBT half bridge prototype.","PeriodicalId":287192,"journal":{"name":"APEC '99. Fourteenth Annual Applied Power Electronics Conference and Exposition. 1999 Conference Proceedings (Cat. No.99CH36285)","volume":"133 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117272492","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}
Pub Date : 1999-03-14DOI: 10.1109/APEC.1999.750474
D. C. Hamill, M. T. Bina
A new AC power controller is proposed, the bootstrap variable inductance, which can emulate variable positive/negative inductance. The term 'reductance' is coined as a synonym for negative inductance. Unlike the conventional capacitive approach for treating unwanted inductive reactance, reductance has the advantage that resonance is impossible. The bootstrap variable inductance has a variety of FACTS applications: series compensation of AC power lines; fault-current limiting; reactive power control; and load power factor improvement. The authors demonstrate its feasibility through simulations.
{"title":"The bootstrap variable inductance and its applications in AC power systems","authors":"D. C. Hamill, M. T. Bina","doi":"10.1109/APEC.1999.750474","DOIUrl":"https://doi.org/10.1109/APEC.1999.750474","url":null,"abstract":"A new AC power controller is proposed, the bootstrap variable inductance, which can emulate variable positive/negative inductance. The term 'reductance' is coined as a synonym for negative inductance. Unlike the conventional capacitive approach for treating unwanted inductive reactance, reductance has the advantage that resonance is impossible. The bootstrap variable inductance has a variety of FACTS applications: series compensation of AC power lines; fault-current limiting; reactive power control; and load power factor improvement. The authors demonstrate its feasibility through simulations.","PeriodicalId":287192,"journal":{"name":"APEC '99. Fourteenth Annual Applied Power Electronics Conference and Exposition. 1999 Conference Proceedings (Cat. No.99CH36285)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115316570","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：