performance design of dc machines by clayton hancock
Tài liệu Steady State Operation of DC Machines pptx
... already mentioned, DC machines used to be in the past the major source of DC power. In order to produce electric power DC machines were operated as generators.Nowadays, however, use of DC generators ... more rare. DC power isobtained instead by means of power electronic converters. The remaining applications of DC machines are today restricted to motoring. In this operating regime a DC machine ... Electrical Engineering E Levi, 20011STEADY STATE OPERATION OF DC MACHINES 1. INTRODUCTIONElectric DC machines, as indeed any other type of electric machine, can be used toeither produce electric...
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Báo cáo hóa học: " The Optimal Design of Weighted Order Statistics Filters by Using Support Vector Machines" doc
... 1ϕT(x1i)ϕx2 j.(53)The inner product of the two vectors induced in the fea-ture space can be replaced by the inner-product kernel de-noted by K(x, xi)anddefinedbyKx, xi=ϕ(x) · ϕxi. ... applications. In thispaper, SVMs are introduced into the design of WOS filters inordertoimproveperformance.WOS filters are special subset of stack filters. Each stackfilter is based on a positive ... only marginally im-proved by using the conventional design approach of stackfilter or neural network. Although the adaptive neural fil-ter can effectively remove noise of various kinds, includingGaussian...
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DESIGN OF ROTATING ELECTRICAL MACHINES pdf
... Synchronous Machines 3957.2.11 Synchronous Reluctance Machines 4007.3 DC Machines 4047.3.1 Configuration of DC Machines 4047.3.2 Operation and Voltage of a DC Machine 4057.3.3 Armature Reaction of ... textbook by the important co-authorship of Professor Tapani Jokinen, whohas spent decades in developing the Finnish machine design profession. An important view of electrical machine design is ... In most cases – because of the high permeability of iron parts – the reluctance Rm of the magnetic circuit consists mainly of the reluctances of the air gaps. Thus, most of the energy is stored...
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QUASILINEAR CONTROL: Performance Analysis and Design of Feedback Systems with Nonlinear Sensors and Actuators pot
... system of Figure 1.5(a) and its stochasticlinearization of Figure 1.5(b). The saturated root locus of the system of Figure 1.5(a)is the path traced by the poles of the quasilinear system of Figure ... problems, but from the point of view of design; both wide and narrowsense design problems are considered (problems P2 and P3). Chapter 7 addressesthe issues of performance recovery (problems ... outputvariance.ãThe performance of the actual system with an SLQR controller closelymatches the intended design. ãThe actual SLQR performance exceeds the actual LQR performance for allvalues of α.As...
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Design of machinery mechanisms and machines 2nd ed
... quality of the design. Commercially available programssuch as Working Model* also allow rapid analysis of a proposed mechanical design. Theprocess then becomes one of qualitative design by successive ... synthesis and gen-eral linkage design by successive analysis. The fast computation of these programs al-lows one to analyze the performance of many trial mechanism designs in a short timeand promotes ... Principles of Mechanism in 1841 while aprofessor of natural philosophy at the University of Cambridge, England. He attemptedto systematize the task of mechanism synthesis. He counted five ways of obtaining...
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báo cáo hóa học:" Research Article Improving the Performance of Bus Platforms by Means of Segmentation and Optimized Resource Allocation" ppt
... Work. As shown by the practical implementation of the segmentation results, the expected performance figuresare affected by the size of the data packets and by the process-ing time of individual ... diversity of devices within the boundaries of amodern system-on-a-chip (SOC) brings up a great number of possible interfaces. System design and perfor mance areoften limited by the complexity of the ... inclusion of the processingtime and of the packet size in future versions of the algorithmcomesasanecessity.Impact of Topology. A further improvement of performance is represented by a circular...
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Báo cáo hóa học: " Research Article Design and Performance Evaluation of an Adaptive Resource Management Framework for Distributed Real-Time and Embedded Systems" pptx
... platforms and im-prove flexibility.(iii) Design of a framework determines its performance andapplicability. The design of key modules and entities of theresource management framework determines ... rates. Resource utilization by, and impor-tance of, a science application is determined by its mode of operation, which is summarized by Ta ble 1 .Table 1: Characteristics of science application.Mode ... scalability of the RACE framework by studying the impact of increase innumber of nodes and applications in the system on RACE’smonitoring delay and actuation delay. We also studied the performance of...
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Báo cáo hóa học: " Research Article Design and Performance Analysis of an Adaptive Receiver for Multicarrier DS-CDMA" doc
... eight w0= 1andμ1= 0.3 Performance of CPIC, first stage Performance of CPIC, second stageFigure 7: BER performance of the first and second stage of theAPIC as a function of the step-size.with ... ac-curacy of the BER derivation is validated by computer sim-ulations. The results showed a significant performance im-provement of the APIC over the CPIC receiver.The organization of this paper ... influence of the choice of the initialweight w0is shown in Figure 9, where the MSE performances Huahui Wang et al. 9derivations. The effect of the design parameters of the APICreceiver, such...
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Báo cáo hóa học: " Research Article Optimal Design of Nonuniform Linear Arrays in Cellular Systems by Out-of-Cell Interference Minimization" ppt
... a reminder of the rank-1 approxima-tion. The advantage of the rank-1 performance criterion (15)is that it allows to derive an explicit expression as a function of the parameters of interest. ... mobile, it is of interest to evaluatethe optimal spacings not only for a fixed position of usersand interferers but also by averaging the performance met-ric over the positions of user and interferers ... attained by analyzingthe interference power (not shown here).6. CONCLUSIONIn this paper, we tackled the problem of optimal design of linear arrays in a cellular systems under the assumption of Gaussian...
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Báo cáo hóa học: "Design of Experiments for Performance Evaluation and Parameter Tuning of a Road Image Processing Chain" ppt
... covering rate for the set of trials of the first design of experiments (Ta ble 2).These designs have been tested on 180 input images se-lected from a video sequence of over 30 000 city and mo-torway ... Therefore, each experiment design of ex-periments is well defined by its experiment matrix whose linenumber refers to the number of trials and column numberrefers to the number of tested par ameters. ... Proceedings of the ECCVWorkshop on Performance Characteristics of Vision Algorithms,p. 13, Cambridge, UK, April 1996.[3] W. Forstner, “10 pros and cons against performance charac-terization of vision...
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Performance enhancement of lte-a, a multi-hop relay node, by employing half-duplex mode
... Bandwidth 20 M Number of BS 1 Antenna height of BS 25 (m) Antenna gain 14 dBi Maximum total transmitting power of BS 46 dBm Number of RN 1 Antenna height of RN 3 m (above the train ... International Journal of Computer Science Issues. All Rights Reserved. 5. Conclusions This paper introduced two scenarios on the performance of RN and UE in two types of half-duplex relays. ... Performance Enhancement of LTE-A, a Multi-Hop Relay Node, by Employing Half-Duplex Mode Jaafar Adhab AL-Dhaibani1, A. Yahya2, R.B. Ahmed3, and A.S. Md Zain4 1,2,3,4 School of...
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Analysis, Design and Performance Evaluation of Optical Fiber potx
... __________________Abstract iii of forward error correction coding (FEC). System capacity (for BER = 10−12) is shown to be 23 Gb/swithout coding, and 75 Gb/s with a (255,239) Reed Solomon code.The effect of non-rectangular ... improving power budget, it is shown that systempenalty due to filter shape may be kept < 1 dB by employing filters with N > 2. Moreover spectrum-sliced FSK systems using optical preamplifier ... receivers are shown, for the first time, to perform betterin a peak optical power limited environment. Performance- optimized spectrum-sliced WDM systemshave potential use in both local loop and long-distance...
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DESIGN OF MACHINERYAN INTRODUCTION TO THE SYNTHESIS AND ANALYSIS OF MECHANISMS AND MACHINES phần 2 potx
... quality of the design. Commercially available programssuch as Working Model* also allow rapid analysis of a proposed mechanical design. Theprocess then becomes one of qualitative design by successive ... motor. There are a myriad of other examples of fourbar couplercurves used in machines and mechanisms of all kinds.One other example of a very different application is that of the automobile suspen-sion ... of the linkage assembly, and its motion isalong a set of coupler curves. The orientation of the wheel is also of concern in this case,so this is not strictly a path generation problem. By designing...
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- clayton hancock performance design of dc machines elbs
- clayton hancock performance design of dc machines pdf
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