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Industry Applications Magazine, IEEE

Issue 2 • Date March-April 2009

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Displaying Results 1 - 22 of 22
  • IEEE Industry Applications Magazine - Mar.-Apr. 2009

    Page(s): c1
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  • Table of contents - Vol 15 No 2

    Page(s): 1
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  • Movable type [From the Editor's Desk]

    Page(s): 2
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    Freely Available from IEEE
  • Where does the money come from? [President's Message]

    Page(s): 4 - 6
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  • I&CPS Call for Papers (2010)

    Page(s): 6
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    Freely Available from IEEE
  • Mapping the safety journey [Electrical Safety]

    Page(s): 7
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  • An early bar code reader [History]

    Page(s): 8 - 11
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  • Three-level converter system

    Page(s): 12 - 23
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (1747 KB) |  | HTML iconHTML  

    This article describes the design guidelines for the construction and control of three-level converters. Loss equations that assist in thermal design and device sizing are provided along with current estimates for sizing link capacitors. The primary commutation mechanisms and the relevant parasitic effects are identified. A low-inductance busplane design is presented for designs featuring dual IGBT modules, and low inductance snubber capacitor connections are shown. The DSP-FPGA platform used to control the prototype is described in some detail. The partitioning of the controls into slower control functions implemented in the DSP and the faster functions synthesized in the FPGA is described. This prototype and controller provided a very flexible base, which was used to verify various modulation strategies, control functions, and power flow regulation algorithms for NPC converters. The lessons learned from the design, build, and test of this converter system can be applied to prototype development for other power electronic converters and systems. View full abstract»

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  • Voltage source inverter

    Page(s): 24 - 33
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (2305 KB) |  | HTML iconHTML  

    This article presents an EA-based design optimization tool for a three-phase voltage source inverter with diode front-end rectifier used for industrial motor drive power stage considering all major subsystems front-end rectifier, inverter and thermal management system, and EMI filter. Analytical relationships are developed and implemented into three optimizers. Global optimization is achieved by considering the relations between the subsystems. Design examples verified the usefulness and correctness of the design methodology and tool. View full abstract»

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  • Precision farming practices

    Page(s): 34 - 42
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (2491 KB) |  | HTML iconHTML  

    In the past decade, farmers around the globe have witnessed what some consider an agricultural revolution. Driven by economic and environmental pressures, precision agriculture has emerged as a flurry of technological enhancements to traditional farm machinery and management tools. One does not have to closely examine a field to notice that the crop often thrives in certain areas while growing poorly in others. An intuitive approach to addressing this problem is to apply different amounts of seed, fertilizer, or other inputs according to the specific needs of the particular area of the field. For a very small field, manual control of inputs may be possible; however, for larger fields, this approach is unrealistic, if not impossible. Furthermore, this approach is subjective because control decisions are based on the operator's opinion and have no quantitative basis. In recent years, several technologies have emerged and made their way into the agricultural realm. These technologies provide the basis to realize the precision farming vision and to objectively manage agricultural land according to its spatially variable needs. Traditionally, whole-field application rates of inputs such as fertilizer and pesticide have been determined according to the maximum needs within a field. Precision farming practices significantly improve farm production in terms of net profit and limit environmental pollution potential. View full abstract»

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  • The windmill topology

    Page(s): 43 - 53
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (2918 KB) |  | HTML iconHTML  

    In this article, an improved three- to nine-phase windmill 18- pulse clean power ASD system is presented. A novel third harmonic circulating current calculation method is introduced and used to investigate different topologies. A system evaluation demonstrates the steady state and dynamic performance of a complete rectifier and PWM motor drive.The state-of-the-art simulation is built on the complete system consisting of the utility source, windmill nine-phase autotransformer, nine-phase rectifier bridge, DC link capacitor, inverter with SVPWM, and induction machine with load. View full abstract»

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  • Wind generation

    Page(s): 54 - 61
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (1631 KB) |  | HTML iconHTML  

    Wind generation is the fastest growing power source over the past decade, and this growth is forecasted to continue. The latest wind turbines have robust designs for reliable performance. In this article, concepts and illustrations for a cement plant that benefit from the incorporation of wind generation have been shown. The wind plant can be a part of a system designed to provide reliable, economic, and clean power. View full abstract»

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  • Optimal energy management

    Page(s): 62 - 65
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (987 KB) |  | HTML iconHTML  

    This paper presents the operational planning of an integrated trigenerative system.The installation of a CHCP plant depends on the financial investments. This work shows an optimization procedure to foresee a management of the system aimed to increase yield of investment. The optimization procedure seems to work well as foreseen PBP is short if compared with other similar installed plants. Nothing can be said about IRR, whose quality depends on the kind of investment wished by the manager. View full abstract»

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  • Society news [includes the 2008 Prize Paper Awards from the Electrostatic Processes Committee]

    Page(s): 66 - 67
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  • Honoring our colleagues [Awards]

    Page(s): 68 - 72
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  • The 55th Annual Petroleum and Chemical Industry Conference [Conference News]

    Page(s): 71 - 72
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  • The 2008 Myron Zucker Design Competition [Education Department News]

    Page(s): 73
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  • Standards, patents, and intellectual property [Standards]

    Page(s): 74 - 77
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  • Geographical distribution of membership [Chapter News]

    Page(s): 75 - 78
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  • PCIC 2010 - Call for Papers

    Page(s): 76 - 77
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  • IAS Conferences (2009) [Conference Calendar]

    Page(s): 78
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  • On the lighter side

    Page(s): 80
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Aims & Scope

IEEE Industry Applications Magazine reports on the development and application of electrical systems, apparatus, devices, and controls to the processes and equipment of industry and commerce; the promotion of safe, reliable, and economic installations; the encouragement of energy conservation; and the creation of voluntary engineering standards and recommended practices.

Full Aims & Scope

Meet Our Editors

Editor-in-Chief
H. Landis "Lanny" Floyd