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Proceedings of Power Conversion Conference - PCC '97最新文献

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Improvement of performance of a series resonant DC link PWM inverter 串联谐振直流链路PWM逆变器性能的改进
Proceedings of Power Conversion Conference - PCC '97 Pub Date : 1997-08-03 DOI: 10.1109/PCCON.1997.645632
H. Ishikawa, Y. Murai
{"title":"Improvement of performance of a series resonant DC link PWM inverter","authors":"H. Ishikawa, Y. Murai","doi":"10.1109/PCCON.1997.645632","DOIUrl":"https://doi.org/10.1109/PCCON.1997.645632","url":null,"abstract":"This paper proposes a series resonant DC link PWM inverter which is improved for better performance. The prototype inverter has the advantage of a small DC inductance and output capacitors. At smaller DC inductance, it is important that the energy is controlled to be constant for better output control. Therefore, in this paper, the inverter is improved for better output performance and efficiency. As a result, the losses becomes smaller. This paper presents the design of the improved inverter, the experimental results and the characteristics of the losses.","PeriodicalId":262154,"journal":{"name":"Proceedings of Power Conversion Conference - PCC '97","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128600875","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 basic study on a parallel resonant link converter for a high frequency link system 高频链路系统并联谐振链路变换器的基础研究
Proceedings of Power Conversion Conference - PCC '97 Pub Date : 1997-08-03 DOI: 10.1109/PCCON.1997.645630
M. Matsui, T. Akiyama
{"title":"A basic study on a parallel resonant link converter for a high frequency link system","authors":"M. Matsui, T. Akiyama","doi":"10.1109/PCCON.1997.645630","DOIUrl":"https://doi.org/10.1109/PCCON.1997.645630","url":null,"abstract":"The parallel resonant link high frequency power distribution system can be an attractive system as a supplementary local distribution line linked with an existing AC commercial system line in a building or a plant, if some new energy sources and energy storage systems are combined and connected with the link. This paper deals with some basic issues of a unit converter for such systems from both microscopic (stable switching operation) and macroscopic (energy flow) points of view. A PDM (pulse density modulation) gate control circuit for stable operation and self start-up from standstill is tested. The effect of PDM sampling period on steady state waveforms is compared for three cases. The bad effect of parasitic capacitance of the switching arm is shown, and its countermeasure is given. Based on the probabilistic switching function technique, a DC equivalent circuit model suited for simulating macroscopic energy flow is proposed.","PeriodicalId":262154,"journal":{"name":"Proceedings of Power Conversion Conference - PCC '97","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123722102","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 rotor design of a permanent magnet-type bearingless motor considering demagnetization 考虑退磁的永磁型无轴承电机转子设计
Proceedings of Power Conversion Conference - PCC '97 Pub Date : 1997-08-03 DOI: 10.1109/PCCON.1997.638267
M. Ooshima, S. Miyazawa, A. Chiba, F. Nakamura, T. Fukao
{"title":"A rotor design of a permanent magnet-type bearingless motor considering demagnetization","authors":"M. Ooshima, S. Miyazawa, A. Chiba, F. Nakamura, T. Fukao","doi":"10.1109/PCCON.1997.638267","DOIUrl":"https://doi.org/10.1109/PCCON.1997.638267","url":null,"abstract":"The characteristics of a surface-mounted permanent magnet-type bearingless motor have reported by the authors. Thin permanent magnets are employed to generate radial forces efficiently. However, thin permanent magnets have a crisis of demagnetization because not only q-axis fluxes but also additional radial force fluxes exist in the motor magnetic field. The maximum q-axis and radial force currents limited by the demagnetization have been already made clear for a particular machine configuration using the finite element method. However, these results are not theoretically verified. In this paper, a limitation of demagnetization is analytically derived. The maximum current is found as a parameter of a permanent magnet thickness.","PeriodicalId":262154,"journal":{"name":"Proceedings of Power Conversion Conference - PCC '97","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120957607","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: 12
Axial type flat PM motor with large air gap 具有大气隙的轴向式平面永磁电机
Proceedings of Power Conversion Conference - PCC '97 Pub Date : 1997-08-03 DOI: 10.1109/PCCON.1997.638263
M. Sanada, S. Morimoto, Y. Takeda
{"title":"Axial type flat PM motor with large air gap","authors":"M. Sanada, S. Morimoto, Y. Takeda","doi":"10.1109/PCCON.1997.638263","DOIUrl":"https://doi.org/10.1109/PCCON.1997.638263","url":null,"abstract":"An axial type flat permanent magnet motor (AFPM motor) is used for audio visual equipment, information actuators, etc. However it is limited to a small capacity with a small air gap. In this paper, the characteristics of the AFPM motor with a large air gap to protect and/or separate between the rotor and the stator for new applications are examined. The tested motor has an 8 mm air gap length and a 170 W output capacity. Maximum efficiency of the tested motor is about 80%, and if the air gap length is spread to 12 mm, the tested motor keeps 66% efficiency. Moreover, it is shown that the steady-state characteristics of the AFPM motor driven by a 6-step inverter can be estimated using d-q coordinates modeling.","PeriodicalId":262154,"journal":{"name":"Proceedings of Power Conversion Conference - PCC '97","volume":"2016 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114201486","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
New current-controlled PWM rectifier-voltage source inverter without DC link components 新型电流控制PWM整流电压源逆变器，无直流环节元件
Proceedings of Power Conversion Conference - PCC '97 Pub Date : 1997-08-03 DOI: 10.1109/PCCON.1997.638317
K. Iimori, K. Shinohara, O. Tarumi, Z. Fu, M. Muroya
{"title":"New current-controlled PWM rectifier-voltage source inverter without DC link components","authors":"K. Iimori, K. Shinohara, O. Tarumi, Z. Fu, M. Muroya","doi":"10.1109/PCCON.1997.638317","DOIUrl":"https://doi.org/10.1109/PCCON.1997.638317","url":null,"abstract":"The voltage-source inverters are normally equipped with an electrolytic capacitor in their DC link, the electrolytic capacitor has several disadvantages such as increasing size, limiting converter life and reliability. Therefore several approaches for removing the DC link capacitor have been studied. This paper proposes a new voltage source inverter without DC link components, whose rectifiers are controlled by suitable current feedback to adjust near-sinusoidal AC source current waveforms at unity power factor. The calculated characteristics are described for a 0.75 kW induction motor driven by this inverter.","PeriodicalId":262154,"journal":{"name":"Proceedings of Power Conversion Conference - PCC '97","volume":"95 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114830673","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: 56
A speed calculation method for induction motor based on voltage decoupling control principle 基于电压解耦控制原理的异步电动机转速计算方法
Proceedings of Power Conversion Conference - PCC '97 Pub Date : 1997-08-03 DOI: 10.1109/PCCON.1997.638239
Z. Yuenan, Feng Duoshen, C. Boshi
{"title":"A speed calculation method for induction motor based on voltage decoupling control principle","authors":"Z. Yuenan, Feng Duoshen, C. Boshi","doi":"10.1109/PCCON.1997.638239","DOIUrl":"https://doi.org/10.1109/PCCON.1997.638239","url":null,"abstract":"A new simplified equivalent model of an induction motor is proposed in this paper, which is derived from the voltage decoupling control principle of induction motors. The model consists of two subsystems, the rotor flux and torque current subsystems, and is identical to that of a DC motor. According to this model, a speed calculation method is presented for a speed sensorless vector-controlled induction motor drive system, which uses integration of the difference between the command of torque current and the torque component of stator current. The validity of the proposed method is verified by computer simulation results.","PeriodicalId":262154,"journal":{"name":"Proceedings of Power Conversion Conference - PCC '97","volume":"108 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128158657","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: 8
Driving characteristics of anti-directional-twin-rotary motor on electric vehicle simulator 反方向双回转电机在电动汽车模拟器上的驱动特性
Proceedings of Power Conversion Conference - PCC '97 Pub Date : 1997-08-03 DOI: 10.1109/PCCON.1997.645579
N. Hoshi, K. Yoshimoto, A. Kawamura
{"title":"Driving characteristics of anti-directional-twin-rotary motor on electric vehicle simulator","authors":"N. Hoshi, K. Yoshimoto, A. Kawamura","doi":"10.1109/PCCON.1997.645579","DOIUrl":"https://doi.org/10.1109/PCCON.1997.645579","url":null,"abstract":"An anti-directional-twin-rotary motor (ADTR) was tested on an electric vehicle (EV) simulator, which behaves as if the ADTR-motor were installed in an EV, and was driven in the EV driving conditions. The ADTR-motor has the novel motor structure suitable for EV drives, in which the stator in the conventional motor was reformed to be movable, and the stator (outer rotor) rotates in the anti-direction of a rotor in the conventional motor (inner rotor). There are several structures of ADTR-motor; permanent magnet (PM) type, induction motor (IM) type and so on. In this paper, a driving characteristics of a PM type ADTR-motor on the EV simulator was measured and compared with the computer simulations using an EV simulator model.","PeriodicalId":262154,"journal":{"name":"Proceedings of Power Conversion Conference - PCC '97","volume":"143 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132502792","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
DC ripple current reduction method on a single phase PWM voltage source converter 单相PWM电压源变换器的直流纹波电流减小方法
Proceedings of Power Conversion Conference - PCC '97 Pub Date : 1997-08-03 DOI: 10.1109/PCCON.1997.645618
T. Shimizu, Y. Fujioka, G. Kimura
{"title":"DC ripple current reduction method on a single phase PWM voltage source converter","authors":"T. Shimizu, Y. Fujioka, G. Kimura","doi":"10.1109/PCCON.1997.645618","DOIUrl":"https://doi.org/10.1109/PCCON.1997.645618","url":null,"abstract":"The present paper introduces a novel topology for a single-phase PWM voltage source power converter and a related control method that can produce not only a sinusoidal input current but also zero-ripple output current. The main circuit of this power converter is composed of a conventional single-phase PWM voltage source power converter and a ripple reduction circuit. The ripple reduction circuit is composed of an additional switching leg, an inductor and a switching leg that is shared with the PWM power converter. Input current control is achieved by the conventional high-frequency PWM current control technique. On the other hand, DC ripple reduction control is associated with some difficulties because one of the switching legs in the ripple reducing portion is shared with the PWM power converter portion. In order to reduce the DC ripple current, the inductor current at the ripple reducing portion must be maintained to an adequate value which is deeply influenced by the modulation factor on the PWM power converter. The relationship between the modulation factor and the inductor current was analysed and the inductor current necessary for DC ripple current reduction was studied. The effectiveness of this circuit was confirmed experimentally and by simulation The power converter is useful for UPSs and DC power supplies, particularly in the case in which batteries are connected to the DC line.","PeriodicalId":262154,"journal":{"name":"Proceedings of Power Conversion Conference - PCC '97","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134147932","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
Development of dispersion type active filter [for power system harmonics] 色散型有源滤波器的研制[电力系统谐波]
Proceedings of Power Conversion Conference - PCC '97 Pub Date : 1997-08-03 DOI: 10.1109/PCCON.1997.645609
K. Shinzen, M. Nomura, M. Terashima, F. Anan, K. Yamasaki
{"title":"Development of dispersion type active filter [for power system harmonics]","authors":"K. Shinzen, M. Nomura, M. Terashima, F. Anan, K. Yamasaki","doi":"10.1109/PCCON.1997.645609","DOIUrl":"https://doi.org/10.1109/PCCON.1997.645609","url":null,"abstract":"The increase in various types of power system harmonics has led to the establishment of harmonic suppression guidelines. In response, the active filter has been developed. This paper proposes a dispersion type active filter, which reduces harmonics in the input voltage that appear in the load voltage. The load voltage can be independent from input voltage by using two active filters in series. The authors also report the experimental results obtained for this dispersion type active filter.","PeriodicalId":262154,"journal":{"name":"Proceedings of Power Conversion Conference - PCC '97","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133871469","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
Immunity test results of a quick power failure detector of uninterruptible secondary battery system 不间断二次电池系统快速电源故障检测器的抗扰度试验结果
Proceedings of Power Conversion Conference - PCC '97 Pub Date : 1997-08-03 DOI: 10.1109/PCCON.1997.645659
S. Miyazaki, M. Ohshima, F. Nakamura, Y. Yamamoto, S. Tamai, H. Mori
{"title":"Immunity test results of a quick power failure detector of uninterruptible secondary battery system","authors":"S. Miyazaki, M. Ohshima, F. Nakamura, Y. Yamamoto, S. Tamai, H. Mori","doi":"10.1109/PCCON.1997.645659","DOIUrl":"https://doi.org/10.1109/PCCON.1997.645659","url":null,"abstract":"An uninterruptible secondary battery system (USBS) consists of secondary batteries and a multi-functional power converter having plural operational modes including local load leveling and uninterruptible power supply (UPS). For the USBS, a quick power failure detector is essential for the smooth operational mode changes. However, commercial AC line voltage harmonic distortion or voltage unbalance may cause misoperation of the quick power failure detector. In this paper we present immunity test results of the USBS. The test results proved that the proposed detector has sufficient immunity to harmonic distortion and unbalance of the commercial AC line voltage.","PeriodicalId":262154,"journal":{"name":"Proceedings of Power Conversion Conference - PCC '97","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130924594","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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