Power Quality Considerations Harmonics • What Are Harmonics? • Harmonic Sequence • Where Do Harmonics Come From? • Effects of Harmonics on the System Voltage • Notching • Effects of Harmonics on Power System Components • Conductors • Three-Phase Neutral Conductors • Transformers • Effects of Harmonics on System Power Factor • Power Factor Correction Capacitors • IEEE Standard 519 Badrul H. Chowdhury University of Missouri–Rolla Hirofumi Akagi Tokyo Institute of Technology Rajapandian Ayyanar Arizona State University Passive Harmonic Filters Passive Filter Design • Appendix—IEEE Recommended Practices and Requirements for Harmonic Control in Electric Power Systems Amit Kumar Jain University of. | 17 Power Quality and Utility Interface Issues Wayne Galli Southwest Power Pool Timothy L. Skvarenina Purdue University Badrul H. Chowdhury University of Missouri-Rolla Hirofumi Akagi Tokyo Institute of Technology Rajapandian Ayyanar Arizona State University Amit Kumar Jain University of Minnesota Overview Harmonics and IEEE 519 Surge Voltages and Other Standards Addressing Utility Interface Issues Power Quality Considerations Harmonics What Are Harmonics Harmonic Sequence Where Do Harmonics Come From Effects of Harmonics on the System Voltage Notching Effects of Harmonics on Power System Components Conductors Three-Phase Neutral Conductors Transformers Effects of Harmonics on System Power Factor Power Factor Correction Capacitors IEEE Standard 519 Passive Harmonic Filters Passive Filter Design Appendix IEEE Recommended Practices and Requirements for Harmonic Control in Electric Power Systems Active Filters for Power Conditioning Harmonic-Producing Loads Theoretical Approach to Active Filters for Power Conditioning Classification of Active Filters Integrated Series Active Filters Practical Applications of Active Filters for Power Conditioning Unity Power Factor Rectification Diode Bridge and Phase-Controlled Rectifiers Standards for Limiting Harmonic Currents Definitions of Some Common Terms Passive Solutions Active Solutions Summary Overview Wayne Galli In the traditional sense when one thinks of power quality visions of classical waveforms containing 3rd 5th and 7th etc. harmonics appear. It is from this perspective that the IEEE in cooperation with utilities industry and academia began to attack the early problems deemed power quality in the 1980s. However in the last 5 to 10 years the term power quality has come to mean much more than simple power system harmonics. Because of the prolific growth of industries that operate with sensitive electronic equipment . the semiconductor industry the term power quality has come to .
