1st Edition

Uninterruptible Power Supplies and Active Filters

    294 Pages 276 B/W Illustrations
    by CRC Press

    As industry power demands become increasingly sensitive, power quality distortion becomes a critical issue. The recent increase in nonlinear loads drawing non-sinusoidal currents has seen the introduction of various tools to manage the clean delivery of power. Power demands of medical facilities, data storage and information systems, emergency equipment, etc. require uninterrupted, high quality power. Uninterruptible power supplies (UPS) and active filters provide this delivery.

    The first to treat these power management tools together in a comprehensive discussion, Uninterruptible Power Supplies and Active Filters compares the similarities of UPS, active filters, and unified power quality conditioners. The book features a description of low-cost and reduced-parts configurations presented for the first time in any publication, along with a presentation of advanced digital controllers. These configurations are vital as industries seek to reduce the cost of power management in their operations.

    As this field of power management technology continues to grow, industry and academia will come to rely upon the comprehensive treatment found within this book. Industrial engineers in power quality, circuits and devices, and aerospace engineers as well as graduate students will find this a complete and insightful resource for studying and applying the tools of this rapidly developing field.

    UNINTERRUPTIBLE POWER SUPPLIES
    Classification
    Batteries for UPS Applications
    Flywheels for UPS Applications
    Comparative Analysis of Flywheels and Electrochemical Batteries
    Applications of UPS Systems
    Parallel Operation
    Performance Evaluation of UPS Systems
    Power Factor Correction in UPS Systems
    Control of UPS Systems
    Converters for UPS Systems
    Battery Charger/Discharger
    References
    ACTIVE FILTERS
    Harmonic Definition
    Harmonic Sources in Electrical Systems
    Effects of Harmonics
    Harmonic Mitigation Methods
    Classification of Active Filters
    Active Filters for DC/DC Converters
    Modeling and Analysis
    Control Strategies
    Stability Assessment
    Conclusion
    References
    UNIFIED POWER QUALITY CONDITIONERS
    Series-Parallel Configuration
    Current Control
    Voltage Control
    Power Flow and Characteristic Power
    References
    REDUCED-PARTS UNINTERRUPTIBLE POWER SUPPLIES
    Concept of Reduced-Parts Converters Applied to Single-Phase On-Line UPS Systems
    New On-Line UPS Systems Based on Half-Bridge Converters
    New On-Line UPS Systems Based on a Novel AC/DC Rectifier
    New Three-Phase On-Line UPS System with Reduced Number of Switches
    New Single-Phase to Three-Phase Hybrid Line-Interactive/On-Line UPS System
    References
    REDUCED-PARTS ACTIVE FILTERS
    Reduced-Parts Single-Phase and Three-Phase Active Filters
    Reduced-Parts Single-Phase Unified Power Quality Conditioners
    Reduced-Parts Single-Phase Series-Parallel Configurations
    Reduced-Parts Three-Phase Series-Parallel Configurations
    References
    MODELING, ANALYSIS, AND DIGITAL CONTROL
    System Modeling Using Generalized State Space Averaging Method
    Digital Control
    References

    Biography

    Ali Emadi, Abdolhosein Nasiri, Stoyan B. Bekiarov

    "It is an attractive reference book for research and development engineers who are interested in modern wind energy systems design and control. Also, it can be useful for [an] advanced senior-level course … ."
    - IEEE Industrial Electronics Society Newsletter, Vol. 52, No. 2, 2005