ISIE'2000. Proceedings of the 2000 IEEE International Symposium on Industrial Electronics (Cat. No.00TH8543)最新文献_第2页

A variable frequency space vector modulator for VSI fed induction motor drives 变频空间矢量调制器的VSI馈电感应电机驱动

ISIE'2000. Proceedings of the 2000 IEEE International Symposium on Industrial Electronics (Cat. No.00TH8543) Pub Date : 2000-12-04 DOI: 10.1109/ISIE.2000.930520

C. Attaianese, D. Capraro, G. Tomasso

引用次数: 1

A novel approach of power converter topology based on the immittance conversion theory 基于阻抗转换理论的一种新型功率变换器拓扑方法

ISIE'2000. Proceedings of the 2000 IEEE International Symposium on Industrial Electronics (Cat. No.00TH8543) Pub Date : 2000-12-04 DOI: 10.1109/ISIE.2000.930345

M. Tamate, H. Ohguchi, M. Hayashi, T. Shimizu, H. Takagi, M. Ito

{"title":"A novel approach of power converter topology based on the immittance conversion theory","authors":"M. Tamate, H. Ohguchi, M. Hayashi, T. Shimizu, H. Takagi, M. Ito","doi":"10.1109/ISIE.2000.930345","DOIUrl":"https://doi.org/10.1109/ISIE.2000.930345","url":null,"abstract":"In recent years, immittance conversion theory has attracted interest as a novel power conversion approach. Immittance conversion is defined by the fact that the impedance at the sending end of the conversion circuitry is proportional to the admittance at the receiving end. In other words, it is possible to convert voltage source into current source, or vice-versa. Two types of immittance conversion elements, such as distributed constant line and lumped L-C circuit, have been proposed. However, the application of these immittance conversion elements to power converters have some restrictions because of their inherent defects. A novel immittance conversion element, which the authors call \"/spl pi/-LC circuit\", is proposed in order to overcome these defects. This proposed circuit converts the fundamental and the third harmonic components in conformity with the immittance conversion theory. The /spl pi/-LC circuit is expected to apply to various power converters. The practical applications of the immittance conversion element, such as DC power supply and utility interactive inverter, are presented. The effectiveness of these converters is confirmed by simulation and experiment.","PeriodicalId":298625,"journal":{"name":"ISIE'2000. Proceedings of the 2000 IEEE International Symposium on Industrial Electronics (Cat. No.00TH8543)","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127611127","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

Increasing the accuracy of differential global positioning system by means of use the Kalman filtering technique 利用卡尔曼滤波技术提高差分全球定位系统的精度

ISIE'2000. Proceedings of the 2000 IEEE International Symposium on Industrial Electronics (Cat. No.00TH8543) Pub Date : 2000-12-04 DOI: 10.1109/ISIE.2000.930372

V. Ponomaryov, O. Pogrebnyak, L. N. de Rivera, J.C. Garcia

引用次数: 5

Time scaling algorithm of speech signal to assist learning of a foreign language 语音信号的时间尺度算法，以帮助学习一门外语

ISIE'2000. Proceedings of the 2000 IEEE International Symposium on Industrial Electronics (Cat. No.00TH8543) Pub Date : 2000-12-04 DOI: 10.1109/ISIE.2000.930363

P. Rodríguez-Peralta, M. Nakano-Miyatake, H. Perez-Meana, G. Duchén-Sánchez

{"title":"Time scaling algorithm of speech signal to assist learning of a foreign language","authors":"P. Rodríguez-Peralta, M. Nakano-Miyatake, H. Perez-Meana, G. Duchén-Sánchez","doi":"10.1109/ISIE.2000.930363","DOIUrl":"https://doi.org/10.1109/ISIE.2000.930363","url":null,"abstract":"For basic level students of foreign languages, normal speed speaking is very difficult to understand perfectly, because of lack of training in understanding of oral language. However when the speed of speaking slows down, in most cases understanding increases. This fact suggests that to improve learning of the foreign language, it is necessary that students can adjust the speed of speaking according to their own understanding level. This paper presents a comparison of two time scaling algorithms when they are used to assist learning of a foreign language. Both algorithms consist of a pitch detection stage and time scaling stage. The pitch detection of both algorithms is based on autocorrelation method of the speech signals proposed by Rabiner et. al. (1976). The time scaling in the first method consists in duplicating the pitch periods of voiced segments while keeping unchanged unvoiced ones. The second method is based on the short time Fourier transform. Experimental results, MOS (mean opinion scoring) are given using Spanish, French, German, Russian, Japanese and Italian which show desirable features of both time scaling algorithms when they are used to assist the students to learn foreign languages. The performance of both algorithms when the pitch detection stage has some noise is also shown.","PeriodicalId":298625,"journal":{"name":"ISIE'2000. Proceedings of the 2000 IEEE International Symposium on Industrial Electronics (Cat. No.00TH8543)","volume":"185 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131851167","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

Reduced switching frequency active front end converter for medium voltage current-source drives using space vector modulation 采用空间矢量调制的中压电流源驱动的降低开关频率的有源前端转换器

ISIE'2000. Proceedings of the 2000 IEEE International Symposium on Industrial Electronics (Cat. No.00TH8543) Pub Date : 2000-12-04 DOI: 10.1109/ISIE.2000.930528

E. Wiechmann, R. Burgos, J. Rodríguez

{"title":"Reduced switching frequency active front end converter for medium voltage current-source drives using space vector modulation","authors":"E. Wiechmann, R. Burgos, J. Rodríguez","doi":"10.1109/ISIE.2000.930528","DOIUrl":"https://doi.org/10.1109/ISIE.2000.930528","url":null,"abstract":"This paper proposes an active front end (AFE) converter for medium voltage current source drives. The converter comprises a 12-pulse isolation transformer and two PWM current source rectifiers (CSR) with GTO thyristors. The converter operates with a switching frequency of 100 Hz (2 p.u.), thus reducing its commutation losses by 66% compared to previous PWM approaches. Also, the converter independently controls its active and reactive power flow, thus being able to operate as a VAr compensator to the power system. Under this scheme, unity power factor is achieved by setting the reactive power reference to zero. The converter's control system is built over an inner d-q axes synchronous frame current loop, and a DC link current and reactive power outer loops to control the d and q axes respectively. Linear controllers are used in all loops except the DC link. A nonlinear controller is employed to linearize this loop, hence avoiding instabilities during regenerative operation. All these features were achieved using staggered sampling space vector modulation (SVM), which assures harmonic cancellation between both PWM-CSR through the feeding transformer. Moreover, the use of SVM avoids all complications associated with selective harmonic elimination techniques (usually employed in these converters). Specifically, solving nonlinear equations and distributing shorting pulses. Simulation results obtained under different operating conditions validate the proposed AFE converter for medium voltage current source drives.","PeriodicalId":298625,"journal":{"name":"ISIE'2000. Proceedings of the 2000 IEEE International Symposium on Industrial Electronics (Cat. No.00TH8543)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115794929","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

Load-frequency control scheme for power systems using smoothed switching structure theory 基于平滑开关结构理论的电力系统负载频率控制方案

ISIE'2000. Proceedings of the 2000 IEEE International Symposium on Industrial Electronics (Cat. No.00TH8543) Pub Date : 2000-12-04 DOI: 10.1109/ISIE.2000.930510

Ming-Sheng Yang

引用次数: 3

General theory of multi-leg power conversion circuits based on neutral point voltage 基于中性点电压的多支路功率转换电路的一般原理

ISIE'2000. Proceedings of the 2000 IEEE International Symposium on Industrial Electronics (Cat. No.00TH8543) Pub Date : 2000-12-04 DOI: 10.1109/ISIE.2000.930343

I. Ando, I. Takahashi

{"title":"General theory of multi-leg power conversion circuits based on neutral point voltage","authors":"I. Ando, I. Takahashi","doi":"10.1109/ISIE.2000.930343","DOIUrl":"https://doi.org/10.1109/ISIE.2000.930343","url":null,"abstract":"This paper describes the general theory of the main circuit constructions and control methods of legs based on output neutral point voltage control under multi-leg power conversion circuits. A controllable fluctuation range of the output neutral point voltage is obtained by the linear programming method under the condition of the desired symmetrical sinusoidal line output voltage. From the analysis, the following points are obtained: (1) the main circuits and control methods of the multi-leg power conversion circuits are constructed by simple theory based on output neutral point voltage control; (2) the controllable maximum line voltage of the each ideal main power circuits is obtained by calculating of the minimum controllable fluctuation range of the output neutral point voltage; and (3) the removed and the common leg conversion circuits can also be realized by simple neutral point voltage control, and high efficiency, low cost and small size converters are achieved. It is clear that this theory expands conventional schemes and it is simple and standard theory on the all multi-leg conversion circuits in the case of symmetrical sinusoidal line output voltage.","PeriodicalId":298625,"journal":{"name":"ISIE'2000. Proceedings of the 2000 IEEE International Symposium on Industrial Electronics (Cat. No.00TH8543)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124865419","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

Direct torque control of induction motors: stability analysis and performance improvement 感应电机直接转矩控制:稳定性分析及性能改进

ISIE'2000. Proceedings of the 2000 IEEE International Symposium on Industrial Electronics (Cat. No.00TH8543) Pub Date : 2000-12-04 DOI: 10.1109/ISIE.2000.930523

R. Ortega, N. Barabanov, G. Escobar

{"title":"Direct torque control of induction motors: stability analysis and performance improvement","authors":"R. Ortega, N. Barabanov, G. Escobar","doi":"10.1109/ISIE.2000.930523","DOIUrl":"https://doi.org/10.1109/ISIE.2000.930523","url":null,"abstract":"Practitioners in the electric drives community have introduced a novel torque control strategy for high power induction motor applications called direct torque control (DTC), which has three distinctive features: it focuses on stator (instead of rotor) flux regulation, it does not aim at an asymptotic system inversion (hence it does not require additional current loops), and it explicitly takes into account the discrete nature of the control actions, which are simply points of a finite set obtained from a switching logic. Besides its simplicity, it is claimed that the achieved performance is (in some instances) superior to classical field oriented strategies because of the digital form of the control structure and the reduced dependence on parameter variations of the stator flux calculations. Our objective in this paper is twofold, first to carry out a mathematical analysis of the stabilization mechanism of DTC, which helps us assess the achievable performance of the current scheme and provide guidelines for its tuning. Second, to propose a modified DTC to improve its dynamical behavior. Experimental results are presented to illustrate the main points of our paper.","PeriodicalId":298625,"journal":{"name":"ISIE'2000. Proceedings of the 2000 IEEE International Symposium on Industrial Electronics (Cat. No.00TH8543)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127204418","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: 97

Decentralized sliding mode stabilizer design for multi-area interconnected power systems 多区域互联电力系统的分散滑模稳定器设计

ISIE'2000. Proceedings of the 2000 IEEE International Symposium on Industrial Electronics (Cat. No.00TH8543) Pub Date : 2000-12-04 DOI: 10.1109/ISIE.2000.930509

Ming-Sheng Yang

引用次数: 4

Stability issues in three-phase PWM current/voltage source rectifiers in the regeneration mode 再生模式下三相PWM电流/电压源整流器的稳定性问题

ISIE'2000. Proceedings of the 2000 IEEE International Symposium on Industrial Electronics (Cat. No.00TH8543) Pub Date : 2000-12-04 DOI: 10.1109/ISIE.2000.930340

J. Espinoza, G. Joós, M. Perez, T. Moran

{"title":"Stability issues in three-phase PWM current/voltage source rectifiers in the regeneration mode","authors":"J. Espinoza, G. Joós, M. Perez, T. Moran","doi":"10.1109/ISIE.2000.930340","DOIUrl":"https://doi.org/10.1109/ISIE.2000.930340","url":null,"abstract":"Pulse-width modulated current-source and voltage-source rectifiers are becoming an interesting alternative as a source of variable DC power. Advantages include reduced line current harmonic distortion and complete displacement power factor control, including reactive power compensation. Consequently, literature has recently reported different control strategies, where the active power flows from the AC mains into the load. Unfortunately, when active power flows from the load into the converter, it is usually dissipated in the DC link by means of switched resistors. Such approach reduces the overall efficiency; specially, when regeneration is the normal operating mode as in down-hill belt conveyors and electrical shovels in mining applications. In these cases, the regenerative operating mode should be permanently sustained. This work reviews several important issues concerning such an operating mode; specifically, the stability of the converter-load system, and stability analysis of closed loop operation. The paper shows that PWM rectifiers controlled by a regular linear controller (such as PIs) may become unstable under the regenerative operating mode and analyses a control strategy to overcome such difficulties. Simulated results confirm the validity of theoretical considerations.","PeriodicalId":298625,"journal":{"name":"ISIE'2000. Proceedings of the 2000 IEEE International Symposium on Industrial Electronics (Cat. No.00TH8543)","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130911721","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: 33