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Uninterruptible power supplies and active filters / Ali Emadi, Abdolhosein Nasiri, Stoyan B. Bekiarov.

By: Contributor(s): Material type: TextTextSeries: Power electronics and applications seriesPublication details: Boca Raton : CRC Press, c2005.Description: 276 p. : ill. ; 25 cmISBN:
  • 0849330351 (alk. paper)
  • 9780849330353 (alk. paper)
Subject(s): DDC classification:
  • 621.381044 EMA
Online resources: Available additional physical forms:
  • Also available on the Internet.
Holdings
Item type Current library Call number Copy number Status Date due Barcode
Standard Loan Moylish Library Main Collection 621.381044 EMA (Browse shelf(Opens below)) 1 Available 39002100352617

Enhanced descriptions from Syndetics:

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.

Includes bibliographical references and index.

Also available on the Internet.

Table of contents provided by Syndetics

  • 1 Uninterruptible Power Supplies (p. 1)
  • 1.1 Classification (p. 3)
  • 1.1.1 Static UPS (p. 3)
  • 1.1.1.1 On-Line UPS (p. 4)
  • 1.1.1.1.1 Normal Mode of Operation (p. 4)
  • 1.1.1.1.2 Stored-Energy Mode of Operation (p. 5)
  • 1.1.1.1.3 Bypass Mode of Operation (p. 5)
  • 1.1.1.2 Off-Line UPS (p. 6)
  • 1.1.1.2.1 Normal Mode of Operation (p. 7)
  • 1.1.1.2.2 Stored-Energy Mode of Operation (p. 7)
  • 1.1.1.3 Line-Interactive UPS (p. 8)
  • 1.1.1.3.1 Normal Mode of Operation (p. 10)
  • 1.1.1.3.2 Stored-Energy Mode of Operation (p. 11)
  • 1.1.2 Rotary UPS (p. 12)
  • 1.1.3 Hybrid Static/Rotary UPS (p. 13)
  • 1.2 Batteries for UPS Applications (p. 14)
  • 1.2.1 History (p. 14)
  • 1.2.2 Valve-Regulated Lead-Acid Batteries (p. 14)
  • 1.2.3 UPS Battery Features (p. 15)
  • 1.2.4 Problems (p. 15)
  • 1.2.5 Charging Strategies (p. 17)
  • 1.2.6 Failure Category (p. 18)
  • 1.2.7 Monitoring (p. 18)
  • 1.3 Flywheels for UPS Applications (p. 19)
  • 1.3.1 Fundamentals (p. 19)
  • 1.3.2 Classification (p. 22)
  • 1.3.2.1 Low-Speed Flywheel Systems (p. 22)
  • 1.3.2.2 High-Speed Flywheel Systems (p. 22)
  • 1.3.3 UPS Applications of Flywheels (p. 23)
  • 1.4 Comparative Analysis of Flywheels and Electrochemical Batteries (p. 26)
  • 1.5 Applications of UPS Systems (p. 27)
  • 1.5.1 Distributed Approach (p. 28)
  • 1.5.2 Centralized Approach (p. 29)
  • 1.6 Parallel Operation (p. 30)
  • 1.6.1 Configurations (p. 31)
  • 1.6.2 Fundamental Principles of Parallel Operation (p. 35)
  • 1.6.3 Control Strategies in UPS Parallel Operation (p. 36)
  • 1.6.3.1 Concentrated Control (p. 36)
  • 1.6.3.2 Master-Slave Control (p. 36)
  • 1.6.3.3 Distributed Control (p. 37)
  • 1.6.3.4 Wireless Independent Control (p. 37)
  • 1.7 Performance Evaluation of UPS Systems (p. 38)
  • 1.8 Power Factor Correction in UPS Systems (p. 39)
  • 1.8.1 Passive PFC Techniques (p. 40)
  • 1.8.2 Active PFC Techniques (p. 40)
  • 1.9 Control of UPS Systems (p. 43)
  • 1.9.1 Single-Voltage Control Loop Strategy (p. 43)
  • 1.9.2 Multiple Control Loops (p. 44)
  • 1.9.2.1 Hysteresis Current Control (p. 45)
  • 1.9.2.2 SPWM Current Control (p. 45)
  • 1.9.2.3 Predictive Current Control (p. 46)
  • 1.10 Converters for UPS Systems (p. 46)
  • 1.10.1 Rectifiers (p. 47)
  • 1.10.1.1 Uncontrolled Rectifiers (p. 47)
  • 1.10.1.2 Controlled Rectifiers (p. 48)
  • 1.10.2 Inverters (p. 52)
  • 1.10.2.1 Basic Principles of Operation (p. 52)
  • 1.10.2.2 Pulse Width-Modulated Switching Scheme (p. 53)
  • 1.11 Battery Charger/Discharger (p. 56)
  • References (p. 58)
  • 2 Active Filters (p. 63)
  • 2.1 Harmonic Definition (p. 65)
  • 2.2 Harmonic Sources in Electrical Systems (p. 66)
  • 2.2.1 Fluorescent Lamps (p. 66)
  • 2.2.2 Switching Power Supplies (p. 67)
  • 2.2.3 Electric Furnace (p. 67)
  • 2.2.4 High-Voltage DC Systems (p. 67)
  • 2.2.5 Adjustable Speed Drives (p. 68)
  • 2.2.6 AC/DC Converters/Inverters (p. 69)
  • 2.2.7 Other Harmonic-Producing Loads (p. 69)
  • 2.3 Effects of Harmonics (p. 70)
  • 2.3.1 Disturbance to Electric and Electronic Devices (p. 70)
  • 2.3.2 Higher Losses (p. 70)
  • 2.3.3 Extra Neutral Current (p. 71)
  • 2.3.4 Improper Working of Metering Devices (p. 71)
  • 2.3.5 De-Rating of Distribution Equipment (p. 72)
  • 2.3.6 Resonance Problem (p. 72)
  • 2.4 Harmonic Mitigation Methods (p. 72)
  • 2.4.1 Harmonic Production Prevention (p. 73)
  • 2.4.2 Passive Filters (p. 73)
  • 2.4.3 Active Filters (p. 73)
  • 2.4.3.1 Applications (p. 75)
  • 2.4.3.1.1 Adjustable Speed Drives (p. 76)
  • 2.4.3.1.2 DC Capacitor Cancellation (p. 76)
  • 2.4.3.1.3 HVDC Systems (p. 76)
  • 2.4.3.1.4 High-Power Locomotives (p. 77)
  • 2.4.3.1.5 Remote Generations (p. 77)
  • 2.4.3.1.6 Commercial Loads (p. 77)
  • 2.4.3.1.7 Other Applications (p. 77)
  • 2.5 Classification of Active Filters (p. 78)
  • 2.5.1 Current Source Active Filters (p. 78)
  • 2.5.2 Voltage Source Active Filters (p. 80)
  • 2.5.3 Shunt Active Filters (p. 82)
  • 2.5.4 Series Active Filters (p. 84)
  • 2.5.5 Hybrid Active Filters (p. 86)
  • 2.5.6 Unified Power Quality Conditioners (p. 88)
  • 2.6 Active Filters for DC/DC Converters (p. 90)
  • 2.6.1 Active EMI Filters (p. 90)
  • 2.6.2 Active Ripple Filters (p. 92)
  • 2.6.2.1 Configurations (p. 92)
  • 2.7 Modeling and Analysis (p. 95)
  • 2.7.1 Switching Function Model (p. 95)
  • 2.7.2 DC Model (p. 96)
  • 2.7.3 Analytical Model (p. 97)
  • 2.7.3.1 Basic Equations (p. 97)
  • 2.7.3.2 Time Delay for Extraction of Reference Current (p. 99)
  • 2.7.3.3 Time Delay of Response for Current (p. 100)
  • 2.7.3.4 Control of DC Bus Voltage (p. 100)
  • 2.8 Control Strategies (p. 100)
  • 2.8.1 Reference Current/Voltage Detection Method (p. 100)
  • 2.8.1.1 Time Domain Analysis (p. 101)
  • 2.8.1.1.1 High-Pass Filter Method (p. 101)
  • 2.8.1.1.2 Low-Pass Filter Method (p. 101)
  • 2.8.1.1.3 Instantaneous Reactive Power Algorithm (p. 101)
  • 2.8.1.1.4 Modified Instantaneous Reactive Power Algorithm (p. 103)
  • 2.8.1.1.5 Synchronous Reference Frame Method (p. 103)
  • 2.8.1.1.6 Modified Synchronous Reference Frame Method (p. 104)
  • 2.8.1.1.7 Unity Power Factor Method (p. 105)
  • 2.8.1.1.8 Sliding Mode Control (p. 105)
  • 2.8.1.1.9 Passivity-Based Control (p. 105)
  • 2.8.1.1.10 PI Controller (p. 105)
  • 2.8.1.1.11 Flux-Based Controller (p. 106)
  • 2.8.1.1.12 Sine Multiplication Method (p. 106)
  • 2.8.1.2 Frequency Domain Analysis (p. 106)
  • 2.8.2 Derivation of Switching Scheme (p. 107)
  • 2.9 Stability Assessment (p. 107)
  • 2.10 Conclusion (p. 110)
  • References (p. 111)
  • 3 Unified Power Quality Conditioners (p. 117)
  • 3.1 Series-Parallel Configuration (p. 119)
  • 3.2 Current Control (p. 120)
  • 3.3 Voltage Control (p. 123)
  • 3.4 Power Flow and Characteristic Power (p. 126)
  • References (p. 131)
  • 4 Reduced-Parts Uninterruptible Power Supplies (p. 133)
  • 4.1 Concept of Reduced-Parts Converters Applied to Single-Phase On-Line UPS Systems (p. 134)
  • 4.2 New On-Line UPS Systems Based on Half-Bridge Converters (p. 137)
  • 4.2.1 Reduced-Parts Single-Phase On-Line UPS System (p. 137)
  • 4.2.1.1 Description of the Proposed UPS System (p. 137)
  • 4.2.1.2 Basic Principles of Operation (p. 138)
  • 4.2.1.3 Design of a 1 kVA UPS System (p. 144)
  • 4.2.1.4 Simulation Results (p. 149)
  • 4.2.2 Single-Phase to Two-Phase On-Line UPS System (p. 151)
  • 4.2.2.1 Basic Principles of Operation (p. 151)
  • 4.2.2.2 Simulation Results (p. 156)
  • 4.2.3 Single-Phase to Three-Phase On-Line UPS System (p. 157)
  • 4.2.3.1 Basic Principles of Operation (p. 157)
  • 4.2.3.2 Simulation Results (p. 158)
  • 4.2.4 Performance Analyses and Cost Evaluation (p. 160)
  • 4.2.5 Conclusions (p. 163)
  • 4.3 New On-Line UPS Systems Based on a Novel AC/DC Rectifier (p. 164)
  • 4.3.1 Reduced-Parts Single-Phase On-Line UPS System (p. 164)
  • 4.3.1.1 System Description (p. 164)
  • 4.3.1.2 Basic Principles of Operation (p. 165)
  • 4.3.1.3 Simulation Results (p. 170)
  • 4.3.2 Single-Phase to Two-Phase On-Line UPS System (p. 175)
  • 4.3.2.1 Basic Principles of Operation (p. 175)
  • 4.3.2.2 Simulation Results (p. 178)
  • 4.3.3 Single-Phase to Three-Phase On-Line UPS System (p. 179)
  • 4.3.3.1 Basic Principles of Operation (p. 180)
  • 4.3.3.2 Simulation Results (p. 180)
  • 4.3.4 Performance Analyses and Cost Evaluation (p. 180)
  • 4.3.5 Conclusions (p. 181)
  • 4.4 New Three-Phase On-Line UPS System with Reduced Number of Switches (p. 183)
  • 4.4.1 System Description (p. 185)
  • 4.4.2 Basic Principles of Operation (p. 186)
  • 4.4.3 Simulation Results (p. 188)
  • 4.4.4 Performance Analyses and Cost Evaluation (p. 194)
  • 4.4.5 Conclusions (p. 195)
  • 4.5 New Single-Phase to Three-Phase Hybrid Line-Interactive/On-Line UPS System (p. 195)
  • 4.5.1 System Description (p. 196)
  • 4.5.2 Basic Principles of Operation (p. 197)
  • 4.5.3 Simulation Results (p. 200)
  • 4.5.4 Performance Analyses and Cost Evaluation (p. 203)
  • 4.5.5 Conclusions (p. 206)
  • References (p. 209)
  • 5 Reduced-Parts Active Filters (p. 211)
  • 5.1 Reduced-Parts Single-Phase and Three-Phase Active Filters (p. 212)
  • 5.2 Reduced-Parts Single-Phase Unified Power Quality Conditioners (p. 212)
  • 5.2.1 Single-Phase UPQC with Two Full-Bridge Converters (p. 213)
  • 5.2.1.1 Voltage Control (p. 215)
  • 5.2.1.2 Current Control (p. 217)
  • 5.2.2 Single-Phase UPQC with Two Half-Bridge Converters (p. 218)
  • 5.2.3 Single-Phase UPQC with Three Legs (p. 219)
  • 5.3 Reduced-Parts Single-Phase Series-Parallel Configurations (p. 222)
  • 5.3.1 Single-Phase Configuration Based on Two Full-Bridge Bidirectional Converters (p. 227)
  • 5.3.1.1 Bypass Mode (p. 227)
  • 5.3.1.1.1 Voltage Control (p. 228)
  • 5.3.1.1.2 Current Control (p. 229)
  • 5.3.1.2 Backup Mode (p. 229)
  • 5.3.2 Single-Phase Configuration Based on Two Half-Bridge Bidirectional Converters (p. 230)
  • 5.3.3 Single-Phase Configuration Based on the Three-Leg Topology (p. 231)
  • 5.4 Reduced-Parts Three-Phase Series-Parallel Configurations (p. 233)
  • 5.4.1 Bypass Mode (p. 234)
  • 5.4.1.1 Voltage Control (p. 235)
  • 5.4.1.2 Current Control (p. 237)
  • 5.4.2 Backup Mode (p. 241)
  • References (p. 242)
  • 6 Modeling, Analysis, and Digital Control (p. 245)
  • 6.1 Systems Modeling Using the Generalized State Space Averaging Method (p. 246)
  • 6.1.1 Fundamental Equations (p. 246)
  • 6.1.2 Generalized State Space Averaging Method (p. 249)
  • 6.1.3 Modeling of Single-Phase Active Filter System (p. 249)
  • 6.1.4 Simulation Results (p. 251)
  • 6.1.5 Other Examples (p. 253)
  • 6.2 Digital Control (p. 259)
  • 6.2.1 Deadbeat Control Technique for a Single-Phase Shunt Active Filter (p. 260)
  • 6.2.2 Deadbeat Control Technique for Series-Parallel UPS System (p. 261)
  • 6.2.2.1 System Equations (p. 261)
  • 6.2.2.2 Series Converter (p. 263)
  • 6.2.2.3 Parallel Converter (p. 264)
  • 6.2.2.4 Control of a Parallel Converter in Backup Mode (p. 265)
  • 6.2.3 Digital Controller Implementation (p. 266)
  • 6.2.4 Analysis of Controller (p. 267)
  • References (p. 271)
  • Index (p. 273)

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