ISIE '97 Proceeding of the IEEE International Symposium on Industrial Electronics最新文献_第9页

Improving the reusability of frequency converter software by using the structured analysis method 采用结构化分析方法提高变频器软件的可重用性

ISIE '97 Proceeding of the IEEE International Symposium on Industrial Electronics Pub Date : 1997-07-07 DOI: 10.1109/ISIE.1997.648940

S. Valviita, P. Tiitinen, S. Ovaska

引用次数: 2

Equivalent circuit of mush wound AC windings for high frequency analysis 用于高频分析的糊状交流绕组等效电路

ISIE '97 Proceeding of the IEEE International Symposium on Industrial Electronics Pub Date : 1997-07-07 DOI: 10.1109/ISIE.1997.651762

G. Grandi, D. Casadei, U. Reggiani

引用次数: 47

A study on position control of piezoelectric actuators 压电作动器的位置控制研究

ISIE '97 Proceeding of the IEEE International Symposium on Industrial Electronics Pub Date : 1997-07-07 DOI: 10.1109/ISIE.1997.648823

G. Choi, Hiesik Kim, G. Choi

引用次数: 70

The weight selection in the LQ optimal control for an electrical drive system 电力驱动系统LQ最优控制中的权值选择

ISIE '97 Proceeding of the IEEE International Symposium on Industrial Electronics Pub Date : 1997-07-07 DOI: 10.1109/ISIE.1997.648880

C. Botan, A. Onea

{"title":"The weight selection in the LQ optimal control for an electrical drive system","authors":"C. Botan, A. Onea","doi":"10.1109/ISIE.1997.648880","DOIUrl":"https://doi.org/10.1109/ISIE.1997.648880","url":null,"abstract":"In this paper, a linear-quadratic (LQ) optimal control problem is studied. The control method is very general and can be applied to DC motor drive systems and, also, to AC motor drive systems provided with field oriented control. The LQ optimal control problem with a finite horizon implies the use of a time-variant controller. The implementation of such a controller in practical applications is difficult and requires a great amount of CPU time. This paper indicates an easier approach to the implementation of these types of controllers using only invariant blocks. This controller uses constant feedback and correction depending on the initial state of the plant. These ideas are applied to the optimal control of a DC motor drive system. The aim of the analyses performed in this paper is to ensure reduced energy consumption and good behaviour of the system in the transient and steady state. The results allow the development of a selection guide of the weight parameters of the criterion, which means a good choice of the criterion in the design of an optimal controller. In the last section, experimental real-time results show the validity of the proposed method and the effectiveness of the transputer-based controller. Emphasis is also placed on the good correspondence between the simulation results and experimental results with the optimal control system.","PeriodicalId":134474,"journal":{"name":"ISIE '97 Proceeding of the IEEE International Symposium on Industrial Electronics","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134209038","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: 6

Design of communications equipment for factory LANs 工厂局域网通信设备的设计

ISIE '97 Proceeding of the IEEE International Symposium on Industrial Electronics Pub Date : 1997-07-07 DOI: 10.1109/ISIE.1997.651784

P. Marino, F. Poza, J.B. Nogurira

引用次数: 2

Automated optical inspection system for professional double face printed circuit boards 专业双面印刷电路板自动光学检测系统

ISIE '97 Proceeding of the IEEE International Symposium on Industrial Electronics Pub Date : 1997-07-07 DOI: 10.1109/ISIE.1997.651792

C. de Almeida Barreto, J. A. Zuffo, S. Kofuji

{"title":"Automated optical inspection system for professional double face printed circuit boards","authors":"C. de Almeida Barreto, J. A. Zuffo, S. Kofuji","doi":"10.1109/ISIE.1997.651792","DOIUrl":"https://doi.org/10.1109/ISIE.1997.651792","url":null,"abstract":"In the present article, we show the results of the research on knowledge engineering for the development of an automated optical inspection system for printed circuit boards. An innovative methodology for the modelling of knowledge and construction of knowledge based systems was used as the basis for the development: KADS. This methodology relies in the stratification of knowledge in well defined levels of abstraction and in the construction of models for each knowledge level. The specification and a project of a knowledge based system for diagnoses of double face professional printed circuit boards based on the representation of physical structures by segment graphs and characteristic points map is presented. The faults in the boards are identified through discrepancies between the characteristic points map generated from the printed circuit project specification and the map generated from images generated by video cameras. The knowledge based system is used to identify if the discrepancies are due to differences introduced by noise in the image acquisition process, or otherwise due to faults in the board from which the image was generated. If the system identifies the discrepancy as a fault, them the nature of the fault is derived by the knowledge based system from a set of possible faults. A diagnostic is passed to the operator of the system and a set of statistics is generated. The system accepts additional knowledge supplied by the operator and, thus, is able to increase dynamically its knowledge base.","PeriodicalId":134474,"journal":{"name":"ISIE '97 Proceeding of the IEEE International Symposium on Industrial Electronics","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128807011","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

Automated partitioning for HW/SW implementations of factory communication protocols based on SDL 基于SDL的工厂通信协议的硬件/软件实现的自动分区

ISIE '97 Proceeding of the IEEE International Symposium on Industrial Electronics Pub Date : 1997-07-07 DOI: 10.1109/ISIE.1997.651754

P. Neumann, T. Szczepanski

{"title":"Automated partitioning for HW/SW implementations of factory communication protocols based on SDL","authors":"P. Neumann, T. Szczepanski","doi":"10.1109/ISIE.1997.651754","DOIUrl":"https://doi.org/10.1109/ISIE.1997.651754","url":null,"abstract":"We present our approach to mixed hardware/software implementations of factory communication protocols. We start from a single system specification based on SDL (specification and description language). The main task consists of identifying the parts which when implemented in hardware would lead to the biggest gain in overall system performance. In order to achieve this we introduce a three stage solution. Within the first phase we use the environment dependence properties of control dominated systems to reduce the complexity of the next stages. Therefore we build a combined state machine from the existing CFSMs and identify the paths through it which are relevant to a speed up of the system. The second step exploits a new colouring algorithm in order to schedule the tasks of our program. In our case this means the SDL specification. This algorithm can be applied either to find the maximum degree of parallelism or to find the shortest schedule for a given number of parallel resources. The third step allocates the tasks to the system resources distributing the functionality between hardware and software elements. To exhibit the structural features of our approach we introduce SDL specification pictures if necessary.","PeriodicalId":134474,"journal":{"name":"ISIE '97 Proceeding of the IEEE International Symposium on Industrial Electronics","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129033548","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

Techniques for subharmonics oscillations elimination in novel average-current-mode control of the constant frequency power converters 恒频电源变换器中新型平均电流模式控制的次谐波振荡消除技术

ISIE '97 Proceeding of the IEEE International Symposium on Industrial Electronics Pub Date : 1997-07-07 DOI: 10.1109/ISIE.1997.648947

M. Jankovic, P. Ninkovic

引用次数: 0

A new self-resonant PWM forward converter 一种新型自谐振PWM正激变换器

ISIE '97 Proceeding of the IEEE International Symposium on Industrial Electronics Pub Date : 1997-07-07 DOI: 10.1109/ISIE.1997.648970

C. Dias, A.A. Pereira, J. Vieira, V. J. Farias, L. D. de Freitas

引用次数: 6

A control strategy for imposition of sinusoidal input current in a parallel active power filter 并联有源电力滤波器中正弦输入电流施加的控制策略

ISIE '97 Proceeding of the IEEE International Symposium on Industrial Electronics Pub Date : 1997-07-07 DOI: 10.1109/ISIE.1997.648980

J. A. Lambert, E. Coelho, J. Vieira, L. D. de Freitas, V. J. Farias

引用次数: 1