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IEEE Transactions on Industrial Electronics and Control Instrumentation最新文献

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Harmonic Reduction in Inverters by Use of Sinusoidal Pulsewidth Modulation 利用正弦脉宽调制降低逆变器中的谐波
IEEE Transactions on Industrial Electronics and Control Instrumentation Pub Date : 1980-08-01 DOI: 10.1109/TIECI.1980.351675
I. Huang, W. Lin
{"title":"Harmonic Reduction in Inverters by Use of Sinusoidal Pulsewidth Modulation","authors":"I. Huang, W. Lin","doi":"10.1109/TIECI.1980.351675","DOIUrl":"https://doi.org/10.1109/TIECI.1980.351675","url":null,"abstract":"This paper presents a new technique for harmonic reduction in inverters using sinusoidal pulsewidth modulation. In this inverter, the output wave with sinusoidal pulsewidth distribution can be kept in maximum degree of symmetry, and so it offers excellent harmonic control in comparison with any other modulation technique. Detailed analysis shows that the harmonics lower than the ninth (or the thirteenth) are all less than one percent of the fundamental component when the number of pulses per half cycle is over seven (or nine). These results are confirmed by the theoretical data obtained from the natural sampling, and the experimental observations for single-phase full-bridge sinusoidal pulsewidth modulated (SPWM) inverters. It is concluded that by the use of this new technique it is quite easy to design an inverter with a distortion-free sinusoidal output.","PeriodicalId":109541,"journal":{"name":"IEEE Transactions on Industrial Electronics and Control Instrumentation","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1980-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120968735","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
Microprocessor-Based System for Processing Redundant Instrumentation Signals 基于微处理器的冗余仪表信号处理系统
IEEE Transactions on Industrial Electronics and Control Instrumentation Pub Date : 1980-08-01 DOI: 10.1109/TIECI.1980.351679
Y. Kimura, K. Hasegawa, A. Sekiguchi
{"title":"Microprocessor-Based System for Processing Redundant Instrumentation Signals","authors":"Y. Kimura, K. Hasegawa, A. Sekiguchi","doi":"10.1109/TIECI.1980.351679","DOIUrl":"https://doi.org/10.1109/TIECI.1980.351679","url":null,"abstract":"A microprocessor-based system for processing redundant instrumentation signals is proposed. The prototype of the system has been produced using general-purpose microprocessors. The system can provide a complex trip function in place of a conventional hardwired simple 2 out of 3 trip circuit. Self testing and fail safe features are included in the system. The feasibility of the system is assessed by simulated operation tests. The results indicate the satisfactory features of the system in respect to program execution speed and reliability.","PeriodicalId":109541,"journal":{"name":"IEEE Transactions on Industrial Electronics and Control Instrumentation","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1980-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116765242","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
An On-Line System for Identifying the Angular Orientation of a Class of Engineering Components 一类工程部件角取向在线识别系统
IEEE Transactions on Industrial Electronics and Control Instrumentation Pub Date : 1980-08-01 DOI: 10.1109/TIECI.1980.351673
A. Fahim, R. Cheng
{"title":"An On-Line System for Identifying the Angular Orientation of a Class of Engineering Components","authors":"A. Fahim, R. Cheng","doi":"10.1109/TIECI.1980.351673","DOIUrl":"https://doi.org/10.1109/TIECI.1980.351673","url":null,"abstract":"This paper describes the principle of operation and the development of a system for on-line identification of the angular orientation of a class of ``flat'' objects-the class of objects whose angular orientation can be uniquely determined by examining the features of the exterior profile or silhouette. The laboratory system described herein makes use of a digitized image of the component produced by a scanner camera fitted with a linear photo-diode array. By means of a dedicated computer equipped with direct memory access (DMA) capability, an algorithm constructs, so to speak, a circumscribed rectangular image, from which two geometric parameters are evaluated. The two parameters are used to determine the angular orientation of the components. This system has been demonstrated to be simple in design, fast in operation, and can be realized at moderate cost.","PeriodicalId":109541,"journal":{"name":"IEEE Transactions on Industrial Electronics and Control Instrumentation","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1980-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114649417","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
Design and Application of a Microprocessor PID Predictor Controller 微处理器PID预测控制器的设计与应用
IEEE Transactions on Industrial Electronics and Control Instrumentation Pub Date : 1980-08-01 DOI: 10.1109/TIECI.1980.351665
J. Aylor, R. Ramey, G. Cook
{"title":"Design and Application of a Microprocessor PID Predictor Controller","authors":"J. Aylor, R. Ramey, G. Cook","doi":"10.1109/TIECI.1980.351665","DOIUrl":"https://doi.org/10.1109/TIECI.1980.351665","url":null,"abstract":"A digital PID predictor controller is designed and implemented in a microprocessor. The general purpose system controller described permits the use of integer arithmetic for efficient operation with minimum throughput delay time. The stability of the system is investigated and a normalized chart for the selection of the control coefficients for a class of applications is developed. The controller has been applied to the control of a manipulator as a design example.","PeriodicalId":109541,"journal":{"name":"IEEE Transactions on Industrial Electronics and Control Instrumentation","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1980-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129178339","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: 34
Power Factor of AC Controllers for Inductive Loads 感应负载交流控制器的功率因数
IEEE Transactions on Industrial Electronics and Control Instrumentation Pub Date : 1980-08-01 DOI: 10.1109/TIECI.1980.351677
E. El-Bidweihy, K. Al-Badwaihy, M. S. Metwally, Mohammad El-Bedweihy
{"title":"Power Factor of AC Controllers for Inductive Loads","authors":"E. El-Bidweihy, K. Al-Badwaihy, M. S. Metwally, Mohammad El-Bedweihy","doi":"10.1109/TIECI.1980.351677","DOIUrl":"https://doi.org/10.1109/TIECI.1980.351677","url":null,"abstract":"A general relationship for the input power factor of ac controllers with inductive loads is derived in this paper. Its simplified form is given for the phase angle, integral cycle, and symmetrical pulsewidth modulated controllers. The latter may or may not have a freewheeling path for the load.","PeriodicalId":109541,"journal":{"name":"IEEE Transactions on Industrial Electronics and Control Instrumentation","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1980-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130576765","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
A Performance Study of Control Systems with Dead Time 具有死区时间控制系统的性能研究
IEEE Transactions on Industrial Electronics and Control Instrumentation Pub Date : 1980-08-01 DOI: 10.1109/TIECI.1980.351682
C. Hang, C. H. Tan, W. P. Chan
{"title":"A Performance Study of Control Systems with Dead Time","authors":"C. Hang, C. H. Tan, W. P. Chan","doi":"10.1109/TIECI.1980.351682","DOIUrl":"https://doi.org/10.1109/TIECI.1980.351682","url":null,"abstract":"This paper discusses the performance of the Smith Dead Time (SDT) controller for systems with appreciable dead time. Tuning, modeling accuracy, and the effects of parameter variations and measurement noise are all studied using a simulated second-order process with dead time. The corresponding performance of the conventional proportional plus integral (PI) controller is used as a reference for comparison. It is shown that the SDT controller yields improved results over the PI controller if the plant is fairly stationary and the noise level is moderate. Otherwise adaptive filtering and control will be needed to maintain the superiority of the SDT controller over the PI controller.","PeriodicalId":109541,"journal":{"name":"IEEE Transactions on Industrial Electronics and Control Instrumentation","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1980-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129344046","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
Stability Analysis of a Thyristor DC-DC Converter 晶闸管DC-DC变换器的稳定性分析
IEEE Transactions on Industrial Electronics and Control Instrumentation Pub Date : 1980-08-01 DOI: 10.1109/TIECI.1980.351670
R. Unnikrishnan
{"title":"Stability Analysis of a Thyristor DC-DC Converter","authors":"R. Unnikrishnan","doi":"10.1109/TIECI.1980.351670","DOIUrl":"https://doi.org/10.1109/TIECI.1980.351670","url":null,"abstract":"Stability of a dc-dc converter where the average value of the output voltage is maintained constant is investigated. Simplified equations are developed for the average value of the output during sampling periods. The converter is modeled as a chopper pulsewidth modulated (CPWM) system and stability conditions are derived. By simulation, the accuracy of the results is verified.","PeriodicalId":109541,"journal":{"name":"IEEE Transactions on Industrial Electronics and Control Instrumentation","volume":"205 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1980-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123052558","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
Vibrating Fluid Densimeters: A Solution to the Viscosity Problem 振动流体密度计:粘度问题的解决方案
IEEE Transactions on Industrial Electronics and Control Instrumentation Pub Date : 1980-08-01 DOI: 10.1109/TIECI.1980.351684
Alfred P. Wenger
{"title":"Vibrating Fluid Densimeters: A Solution to the Viscosity Problem","authors":"Alfred P. Wenger","doi":"10.1109/TIECI.1980.351684","DOIUrl":"https://doi.org/10.1109/TIECI.1980.351684","url":null,"abstract":"The natural frequency of a resonator immerged in a fluid is density dependent. A major disadvantage of densimeters based on this principle is their poor accuracy for viscous fluids. We solve this difficulty by making an automatic control of the physical phase at which the resonator oscillates. This is done by a modulation technique which, additionally, gives the quality factor and, therefore, the viscosity in digital form. To discover what this physical phase should be and what the factors affecting it are, we made a detailed analytical and numerical study of the vibration of resonators in a viscous fluid. Two densimeters have been built using these results. Their density x viscosity span is 10-100 times larger than that of commercially available instruments of the wholly immersed type. This instrument has achieved an accuracy of ± 0.1 percent.","PeriodicalId":109541,"journal":{"name":"IEEE Transactions on Industrial Electronics and Control Instrumentation","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1980-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130620072","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
Application of RF Circuit Design Principles to Distributed Power Converters 射频电路设计原理在分布式电源变换器中的应用
IEEE Transactions on Industrial Electronics and Control Instrumentation Pub Date : 1980-08-01 DOI: 10.1109/TIECI.1980.351669
R. Gutmann
{"title":"Application of RF Circuit Design Principles to Distributed Power Converters","authors":"R. Gutmann","doi":"10.1109/TIECI.1980.351669","DOIUrl":"https://doi.org/10.1109/TIECI.1980.351669","url":null,"abstract":"The application of RF circuit design principles to high-frequency power converters is described. Compared to conventional converter design, emphasis is placed on obtaining sinusoidal-type waveforms (instead of rectangular-type waveforms) to minimize device switching time requirements and alleviate transforming requirements. A 25-W 48-V to 5-V dc-to-dc converter design using a 5-MHz switching frequency is presented illustrating these principles, using a Class E power amplifier, an L section impedance transformer, and a shunt-mounted harmonically tuned rectifier circuit. Computer simulation results are presented that indicate the feasibility of the proposed design approach, specify required circuit parameters and indicate that line and load regulation can be achieved with narrow-band frequency control. Experimental results on a low power 5-W, 25-V to 5-V dc-to-dc converter breadboard using a 10-MHz switching frequency with the described circuit topology are presented. An efficiency of 68 percent was obtained and load regulation by frequency control demonstrated. Inductor Q requirements limit the conversion efficiency of the proposed converter, and will probably be the limiting factor in obtaining high efficiency with similar design approaches.","PeriodicalId":109541,"journal":{"name":"IEEE Transactions on Industrial Electronics and Control Instrumentation","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1980-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125921146","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: 127
Comparison of Multiple-Output DC-DC Converters Using Cross Regulation 采用交叉调节的多输出DC-DC变换器的比较
IEEE Transactions on Industrial Electronics and Control Instrumentation Pub Date : 1980-08-01 DOI: 10.1109/TIECI.1980.351672
H. Matsuo
{"title":"Comparison of Multiple-Output DC-DC Converters Using Cross Regulation","authors":"H. Matsuo","doi":"10.1109/TIECI.1980.351672","DOIUrl":"https://doi.org/10.1109/TIECI.1980.351672","url":null,"abstract":"A new multiple-output dc-dc converter is analyzed, in which the cross regulation is performed by the energy-storage reactor as well as the transformer. The steady-state and the dynamic characteristics of this converter are compared both theoretically and experimentally with those of the conventional one composed of the step-up-down type circuit. As the results of comparative analysis, it is revealed that this new converter is superior to the conventional one in the steady-state and the dynamic performances. Further, it is demonstrated experimentally that the cross regulation performance of this new multiple-output converter is less affected by the leakage flux in the energy-storage reactor, and also that this converter is very useful as a preregulator for the continuous series regulator in cases requiring a high degree of regulation of the multiple-output voltages.","PeriodicalId":109541,"journal":{"name":"IEEE Transactions on Industrial Electronics and Control Instrumentation","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1980-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130714091","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: 52
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