By Topic

IEE Proceedings B - Electric Power Applications

Issue 3 • May 1989

Filter Results

Displaying Results 1 - 6 of 6
  • Hysteresis current-forced three-phase voltage-sourced reversible rectifier

    Publication Year: 1989, Page(s):113 - 120
    Cited by:  Papers (50)  |  Patents (3)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (760 KB)

    A voltage-sourced reversible rectifier (VSRR) which achieves bidirectional power flow between a three-phase AC supply and a DC bus voltage is described. The device features a current-forced control strategy that has the advantages of simplicity and extremely fast response time, while operating with unity power factor and sinusoidal AC supply currents to produce a regulated DC bus voltage. Six powe... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Improved PWM method of forced commutated cycloconvertors

    Publication Year: 1989, Page(s):121 - 126
    Cited by:  Papers (5)  |  Patents (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (444 KB)

    An unrestricted frequency changer (UFC), a well known forced commutated cycloconverter (FCC), is known to be suitable for variable speed AC drives, because it operates in all four quadrants and generates no subharmonic components. However, lower order undesired components in the output voltage and in the input current are still large and cause problems in practical applications. In the paper, an i... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Analysis of buck/boost zero-current-switching resonant DC/DC convertor

    Publication Year: 1989, Page(s):127 - 135
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (747 KB)

    A large signal steady-state analysis is presented for a buck/boost zero-current-switching resonant DC/DC power convertor. The basic equations governing convertor operation are derived. The following performance parameters are determined for lossless operation: current and voltage waveforms, peak currents and voltages of the switch and rectifier diode, ON switch duty cycles, maximum switching frequ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Transient and steady-state performance of a squirrel-cage induction motor

    Publication Year: 1989, Page(s):136 - 142
    Cited by:  Papers (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (661 KB)

    The paper gives a two-dimensional transient numerical analysis of a three-phase induction motor with a deep bar squirrel-case rotor under a voltage-forced operation. A combined explicit and implicit finite difference scheme is used to solve the problem. Regions of stator phase winding and rotor bar are solved by using a time-marching explicit scheme; the other regions of iron cores and air gap are... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Effects of constructional asymmetries on the characteristics of 2-phase permanent magnet synchronous motors

    Publication Year: 1989, Page(s):143 - 150
    Cited by:  Patents (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (604 KB)

    The synchronous inductor motors studied in this paper have a construction identical to that of PM-type stepping motors, and they feature excellent start/stop characteristics and high torque with small input power. This type of synchronous motor is used mainly in recorders, printers, copying machines etc. to drive papers. Further, they are used in various controllers which need bidirectional rotati... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Earth-leakage problems and solutions on the Tyne and Wear Metro

    Publication Year: 1989, Page(s):152 - 160
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1268 KB)

    The interference and corrosion effects of stray traction-return currents flowing through the earth have presented DC track-return railway operators and public utilities with problems for almost a century. The paper discusses the nature of these problems and the steps taken to include measures in the design and construction of the Tyne and Wear Metro to reduce them to acceptable levels. The formati... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.