Proceedings of the IEEE

Issue 4 • Apr 1988

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Displaying Results 1 - 18 of 18
  • Power electronics in electric utilities: HVDC power transmission systems

    Publication Year: 1988, Page(s):495 - 506
    Cited by:  Papers (11)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (1036 KB)

    Reviews important aspects of high-voltage direct-current (HVDC) power transmission systems. They summarize the history of HVDC transmission and discuss the economic and technical factors responsible for the development of HVDC systems. Terminal design and basic configurations of HVDC systems as well as major equipment of HVDC transmission systems are considered, along with the state-of-the-art tec... View full abstract»

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  • Application of modern control techniques to motor control

    Publication Year: 1988, Page(s):438 - 454
    Cited by:  Papers (36)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (1188 KB)

    An overview is presented of digital control problems arising in the use of microprocessors and the application of modern control theory, from both the theoretical and practical viewpoints. The discussion covers optimal control, robust control, feedback and feed-forward control, and active and passive adaptive control. Various application are described, drawing on the author's own experience. It is... View full abstract»

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  • Power electronics in electric utilities: static VAR compensators

    Publication Year: 1988, Page(s):483 - 494
    Cited by:  Papers (164)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (912 KB)

    The author deals with dynamic VAR compensation of electric power systems, applying power electronics for reactive power generation and control. After an overview of the emergence and status of modern, solid-state VAR compensators in utility and industrial applications, it is shown how dynamic VAR compensation increased transmittable power by providing voltage support, transient stability improveme... View full abstract»

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  • Power electronic circuit topology

    Publication Year: 1988, Page(s):428 - 437
    Cited by:  Papers (13)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (900 KB)

    A generalized concept of `sources' that embraces both power generators and power consumers is presented. This approach simplifies the basic topological aspects of power electronic converter circuits, which are reduced to an array of switches for selectively interconnecting two source systems. Capacitive and inductive filters can modify the nature of the systems, because they act as short-time sour... View full abstract»

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  • Power electronics in electric utilities: role of power electronics in future power systems

    Publication Year: 1988, Page(s):481 - 482
    Cited by:  Papers (100)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (168 KB)

    The role of power electronics in future power systems is considered. The improvement of power semiconductors is held up as a major factor to the increased importance of this role. Power electronics applications for HVDC transmission are discussed View full abstract»

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  • GTO thyristors

    Publication Year: 1988, Page(s):419 - 427
    Cited by:  Papers (17)  |  Patents (4)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (668 KB)

    Major aspects of gate-turn-off (GTO) thyristors are discussed, including device modeling, design considerations, basic research on their switching phenomena, electrical characteristics, and applications. A device design is considered which would increase the maximum interruptible anode current IATO and blocking voltage while decreasing the switching time and power dissipation. ... View full abstract»

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  • High-frequency quasi-resonant converter technologies

    Publication Year: 1988, Page(s):377 - 390
    Cited by:  Papers (255)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (928 KB)

    Resonant switch topologies operating under the principle of zero-current switching (ZCS) and zero-voltage switching (ZVS) are introduced to minimize switching losses, stresses, and noises. Using the resonant switch concept, a host of new quasi-resonant converters (QRCs) are derived from conventional PWM converters. They are capable of operating in the megahertz range, with a significant improvemen... View full abstract»

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  • Power electronics in German railway propulsion

    Publication Year: 1988, Page(s):472 - 480
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (724 KB)

    The state of the art of power electronics is reviewed. Because of the different requirements, such as suburban or long distance traffic and DC or AC supply, various systems are in use and some peculiar configurations, as resistor braking, have become important. With AC supply special line-commutated rectifiers causing low displacement factor and small harmonic content are used for DC motor propuls... View full abstract»

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  • Evolution of MOS-bipolar power semiconductor technology

    Publication Year: 1988, Page(s):409 - 418
    Cited by:  Papers (43)  |  Patents (4)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (816 KB)

    A review of the innovations that have led to the evolution of a power transistor technology based on MOS gate control is provided. This technology offers the advantage of very high input impedance, which allows the control of the devices using low-cost integrated circuits. The physics of operation of the two types of devices in this category, power MOSFETs and power MOS-bipolar devices, are descri... View full abstract»

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  • High-frequency high-density converters for distributed power supply systems

    Publication Year: 1988, Page(s):362 - 376
    Cited by:  Papers (63)  |  Patents (77)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (1200 KB)

    The technical challenges of developing very-high-power-density power supplies operating of switching frequencies in the vicinity of 10 MHz are considered. Primary applications are in the computer, telecommunications, and automotive industries. It is shown that a successful development requires simultaneous considerations of topologies, materials, devices, control, electromagnetic interference, man... View full abstract»

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  • Z-domain continued fraction expansions in two dimensions

    Publication Year: 1988, Page(s):507 - 508
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (104 KB)

    M. Ismail (see IEEE Trans. Circuits Syst., vol.CAS-32, p.754-8, Aug. 1985) presented continued fraction expansions of the modified bilinear discrete reactance function in one dimension. This is extended to the two-dimensional case using synthetic division and backward and forward difference function expansions View full abstract»

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  • Adjustable-speech AC drives

    Publication Year: 1988, Page(s):455 - 471
    Cited by:  Papers (31)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (1764 KB)

    The progress of semiconductor technology in power electronics as well as microelectronics has made it possible to develop controllable AC drives without moving contacts, that are more powerful, of more compact design, improved efficiency and of superior dynamic performance. The present situation and likely future developments are reviewed. Electromagnetic torque generation, adjustable-speed DC dri... View full abstract»

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  • High-power conditioning for space applications

    Publication Year: 1988, Page(s):391 - 0408
    Cited by:  Papers (28)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (1264 KB)

    The development of power conditioning for space applications is considered. The basic topologies of power systems are described. They differ by the amplitude of tbe distributed voltage range and involve different types of power-conditioning equipment. The power cell topologies and their associated modes of control are detailed. The state of the art in both topologies and and equipment is reported,... View full abstract»

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  • Power electronics in the minicomputer industry

    Publication Year: 1988, Page(s):311 - 324
    Cited by:  Papers (5)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (2032 KB)

    An overview of modern minicomputer power systems is presented. Requirements placed on the power systems by computer loads, power source characteristics, and product market forces are described. A review of the genesis of switching power converter technologies in the minicomputer industry is presented. Based on power and packaging considerations, four distinct types of computers are identified: lap... View full abstract»

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  • Life after the schematic: the impact of circuit operation on the physical realization of electronic power supplies

    Publication Year: 1988, Page(s):325 - 334
    Cited by:  Papers (22)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (1024 KB)

    The impact of the nonlinear analog operation of power electronic circuits on the physical realization process is considered. Portions of the physical realization process of a switched-mode power supply are compared with those of a digital circuit board assembly of exactly the same size and power dissipation. This comparison serves as an illustrative example of how differences in circuit operation ... View full abstract»

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  • Power semiconductor devices: an overview

    Publication Year: 1988, Page(s):335 - 342
    Cited by:  Papers (21)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (736 KB)

    Advances in power semiconductor devices are discussed, focusing on the adaptation of silicon integrated circuit wafer processing methods to the design and fabrication of power devices. Some basic properties of power devices are reviewed, along with recent adaptations of wafer processing technology. Two trends are discerned: increasing use of self-aligned, double diffused MOS gate structures to ach... View full abstract»

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  • Small-signal modeling of pulse-width modulated switched-mode power converters

    Publication Year: 1988, Page(s):343 - 354
    Cited by:  Papers (153)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (1036 KB)

    The state-space averaging method, associated with power converters, is discussed, Emphasis is on the motivation and objectives of modeling by equivalent circuits based on physical interpretation of state-space averaging. The discussion is limited to pulse-width-modulated DC-to-DC converters View full abstract»

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  • Applications of magnetic amplifiers to high-frequency DC-to-DC converters

    Publication Year: 1988, Page(s):355 - 361
    Cited by:  Papers (21)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (444 KB)

    Control characteristics and power losses of magnetic amplifier used as a pulse-width modulator are discussed for a typical forward converter driven high-frequency switching. The control region of the magnetic amplifier is analyzed by modeling the DC magnetizing characteristics of the core and the reverse recovery of the diode in the converter circuit, and the dynamic characteristics of the regulat... View full abstract»

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Editor-in-Chief
H. Joel Trussell
North Carolina State University