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The Response of Multichannel Adaptive Systems 多通道自适应系统的响应
IEEE Transactions on Applications and Industry Pub Date : 1964-11-01 DOI: 10.1109/TAI.1964.5407718
J. Douce, K. C. Ng
{"title":"The Response of Multichannel Adaptive Systems","authors":"J. Douce, K. C. Ng","doi":"10.1109/TAI.1964.5407718","DOIUrl":"https://doi.org/10.1109/TAI.1964.5407718","url":null,"abstract":"This paper examines the behavior of 2-channel adaptive control systems, and shows that, contrary to elementary considerations, adjustment will not proceed generally along the line of steepest descent. Design criteria for multichannel adaptive systems are discussed and the conclusion reached that simultaneous adjustment of six variables is practicable.","PeriodicalId":257050,"journal":{"name":"IEEE Transactions on Applications and Industry","volume":"104 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1964-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128256352","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
Characteristic Errors of a Loaded Synchro Transmitter 负载同步发射机的特性误差
IEEE Transactions on Applications and Industry Pub Date : 1964-11-01 DOI: 10.1109/TAI.1964.5407719
Sivy Farhi
{"title":"Characteristic Errors of a Loaded Synchro Transmitter","authors":"Sivy Farhi","doi":"10.1109/TAI.1964.5407719","DOIUrl":"https://doi.org/10.1109/TAI.1964.5407719","url":null,"abstract":"In this paper, the author accurately describes the characteristic error of a synchro transmitter which results from loading the secondary windings. The second harmonic error resulting from unbalanced loads has long been apparent to synchro manufacturers and users and has already been described.1 The secondary slot-harmonic error considered in this paper was predicted by the author while he was employed by the Eclipse-Pioneer Division of the Bendix Corporation. The existence of this error is not generally known, and its description has not been previously published. It is also shown that the minimum requirements for winding distributions are not the same in loaded and unloaded operation.","PeriodicalId":257050,"journal":{"name":"IEEE Transactions on Applications and Industry","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1964-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124024711","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
Reverse Generator Voltage with Unidirectional Trinistor Control Rectifier 反向发电机电压与单向三极管控制整流器
IEEE Transactions on Applications and Industry Pub Date : 1964-11-01 DOI: 10.1109/TAI.1964.5407705
S. Asseo
{"title":"Reverse Generator Voltage with Unidirectional Trinistor Control Rectifier","authors":"S. Asseo","doi":"10.1109/TAI.1964.5407705","DOIUrl":"https://doi.org/10.1109/TAI.1964.5407705","url":null,"abstract":"Most metal mill drives use separate d-c generators for accurate speed control. Generator voltage and motor speed is controlled by an unidirectional trinistor control rectifier which supplies excitation to the generator main field. To reverse the drive, generator voltage must be reversed either by using a bias field or by connecting the trinistor in buck-boost across the single-machine field. In either case, the a-c nature of trinistor voltage tends to wipe out reverse ampereturns and prevent drive motor reversal. An external reactor in series with one machine field absorbs the a-c voltage and allows reversal of the drive motor. The size and inductance of the external reactor is to be determined from expressions and methods developed in this paper.","PeriodicalId":257050,"journal":{"name":"IEEE Transactions on Applications and Industry","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1964-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128170886","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
Modern Efficient Silicon-Rectifier-Type Multiple-Unit Cars for Philadelphia Area Commuter Service 用于费城地区通勤服务的现代高效硅整流型多单元车
IEEE Transactions on Applications and Industry Pub Date : 1964-11-01 DOI: 10.1109/TAI.1964.5407701
S. V. Smith
{"title":"Modern Efficient Silicon-Rectifier-Type Multiple-Unit Cars for Philadelphia Area Commuter Service","authors":"S. V. Smith","doi":"10.1109/TAI.1964.5407701","DOIUrl":"https://doi.org/10.1109/TAI.1964.5407701","url":null,"abstract":"After 3 years of careful evaluation, a modern electric multiple-unit passenger car operating under an 11-kv 25-cycle catenary system has been placed in commuter service on two railroads in the Philadelphia area. Its high-strength stainless steel car body with plastic interior finish, modern lighting, and modulated air conditioning, combines maximum space utilization with maximum passenger comfort and appeal. High-capacity d-c traction motors with double reduction flexible drives are mounted on fabricated 4-wheel trucks and supplied with electrical energy through semiconductor rectifiers. Static components, solidly connected by modern electronic circuitry, control the supply of energy in a smooth flow which insures stepless acceleration of the cars. Performance to date clearly indicates improved service at lower cost.","PeriodicalId":257050,"journal":{"name":"IEEE Transactions on Applications and Industry","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1964-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125684203","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
No-Load Speed Characteristics of the 2-Phase Servomotor 两相伺服电机的空载速度特性
IEEE Transactions on Applications and Industry Pub Date : 1964-11-01 DOI: 10.1109/TAI.1964.5407709
E. Grant
{"title":"No-Load Speed Characteristics of the 2-Phase Servomotor","authors":"E. Grant","doi":"10.1109/TAI.1964.5407709","DOIUrl":"https://doi.org/10.1109/TAI.1964.5407709","url":null,"abstract":"The no-load speed as a function of coil insertion slot opening and rotor skew is analyzed by operating directly on the flux density function of the stator for the 1-coil-per-pole motor. In addition, the no-load speed dependence on nonsinusoidal current excitation is derived. An attempt is made to note the effect of a skewed rotor which has been smeared by a manufacturing process. The maximum electrical no-load speed is 0.9986 of synchronous speed, for a total skew of about 119 electrical degrees with a stator coil slot opening of about 20 electrical degrees.","PeriodicalId":257050,"journal":{"name":"IEEE Transactions on Applications and Industry","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1964-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132159745","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
An Electrohydraulic Automatic Gage Control System 电液自动计量控制系统
IEEE Transactions on Applications and Industry Pub Date : 1964-11-01 DOI: 10.1109/TAI.1964.5407711
W. Gensler
{"title":"An Electrohydraulic Automatic Gage Control System","authors":"W. Gensler","doi":"10.1109/TAI.1964.5407711","DOIUrl":"https://doi.org/10.1109/TAI.1964.5407711","url":null,"abstract":"This paper is concerned with the design of an electrohydraulic automatic gage control for a hot strip mill finishing train. The roll force method of gage control is employed wherein a measurement of the total force exerted by the mill upon the strip is used as an in-line variable to adjust the roll opening. Movement of the rolls is accomplished by energizing a hydraulic actuator mechanically connected to a nut which, in turn, is superimposed on the stand screws. With this technique of control, roll opening changes exceeding 60 mils per second were achieved.","PeriodicalId":257050,"journal":{"name":"IEEE Transactions on Applications and Industry","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1964-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128079719","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
A Controllability Criterion for a Class of Linear Systems 一类线性系统的可控性判据
IEEE Transactions on Applications and Industry Pub Date : 1964-11-01 DOI: 10.1109/TAI.1964.5407713
A. Stubberud
{"title":"A Controllability Criterion for a Class of Linear Systems","authors":"A. Stubberud","doi":"10.1109/TAI.1964.5407713","DOIUrl":"https://doi.org/10.1109/TAI.1964.5407713","url":null,"abstract":"A linear system is completely controllable if for any initial state a control can be found to take the state of the system to the origin of the state space. Present criteria for testing linear systems for controllability require knowing the weighting function matrix of the linear system. In this paper a new criterion is presented which is applicable to a broad class of linear systems defined by linear n-dimensional ordinary vector-matrix differential equations; for this criterion only the coefficient matrices of the differential equation need to be known.","PeriodicalId":257050,"journal":{"name":"IEEE Transactions on Applications and Industry","volume":"133 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1964-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134332419","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: 11
Calculation of Quadratic Moments of High-Order Linear Systems via Routh Canonical Transformation 利用Routh正则变换计算高阶线性系统的二次矩
IEEE Transactions on Applications and Industry Pub Date : 1964-11-01 DOI: 10.1109/TAI.1964.5407717
N. Puri, C. Weygandt
{"title":"Calculation of Quadratic Moments of High-Order Linear Systems via Routh Canonical Transformation","authors":"N. Puri, C. Weygandt","doi":"10.1109/TAI.1964.5407717","DOIUrl":"https://doi.org/10.1109/TAI.1964.5407717","url":null,"abstract":"In this paper, three different methods are developed for calculating various moments of the system variables of a linear system, represented by matrix equation x = Ax. A transformation Q is developed which transforms the system matrix A into a special matrix R. Liapunov function V is considered as V = x<sub>t</sub>Q<sub>t</sub>Qx and it facilitates evaluation of various moments ∫<sub>0</sub><sup>∞</sup> t<sup>m</sup>x<sup>2</sup>dt These methods are especially useful for high-order systems. Examples are included to explain each method.","PeriodicalId":257050,"journal":{"name":"IEEE Transactions on Applications and Industry","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1964-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128475292","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: 9
Analysis and Synthesis of Feedback Control Systems in the Parameter Plane III-Nonlinear Systems 参数平面上反馈控制系统的分析与综合iii -非线性系统
IEEE Transactions on Applications and Industry Pub Date : 1964-11-01 DOI: 10.1109/TAI.1964.5407723
D. Siljak
{"title":"Analysis and Synthesis of Feedback Control Systems in the Parameter Plane III-Nonlinear Systems","authors":"D. Siljak","doi":"10.1109/TAI.1964.5407723","DOIUrl":"https://doi.org/10.1109/TAI.1964.5407723","url":null,"abstract":"The stability and self-excited oscillations of nonlinear feedback control systems are investigated in the parameter plane with respect to both the system parameters and the initial conditions. The proposed analysis procedure is based upon the describing functions defined for both pure and damped sinusoidal signals and, therefore, permits the designer to obtain information about the effects on absolute and relative stability of adjusting system parameters or varying the initial signal level. Control systems with two non-linearities and with amplitude- and frequency-dependent describing functions may be designed advantageously. The method is particularly useful when the describing function appears as a variable pole of relevant transfer functions. The procedure requires no block-diagram manipulations, and it is suitable for the application of computer techniques.","PeriodicalId":257050,"journal":{"name":"IEEE Transactions on Applications and Industry","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1964-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121701904","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: 26
The Contribution or Motors and Generators to a Short Circuit Results of Laboratory and Marine Tests 电机和发电机对实验室和船舶试验短路结果的影响
IEEE Transactions on Applications and Industry Pub Date : 1964-11-01 DOI: 10.1109/TAI.1964.5407700
D. Fabrizi
{"title":"The Contribution or Motors and Generators to a Short Circuit Results of Laboratory and Marine Tests","authors":"D. Fabrizi","doi":"10.1109/TAI.1964.5407700","DOIUrl":"https://doi.org/10.1109/TAI.1964.5407700","url":null,"abstract":"Short-circuit currents, which are particularly high on ships, result from the combined contribution of generators and motors. This phenomenon can be analyzed with equations expressing the transient conditions of 3-phase rotating machines. Some simplification of these equations allows an easy calculation of short-circuit currents; however, tests are necessary to determine accurate maximum peak and symmetrical component values, especially for the motors. In the specifications of the International Electrotechnical Commission (IEC), some coefficients which allow quick evaluation of the contribution of motors to short-circuit currents have been standardized; these are confirmed by the laboratory and marine tests described in this paper.","PeriodicalId":257050,"journal":{"name":"IEEE Transactions on Applications and Industry","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1964-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121287161","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
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