Power quality aspects for power system and industrial utilities
Summary :
Table of Contents
- Abstract
- Introduction
- Power quality problems
- Causes of harmonic distortion
- Evaluation of harmonic distortion
- Classification of harmonics and their effects
- Harmonics mitigation methods
- Over-sizing or derating of die installation
- Isolation transformers
- Series reactors
- Passive filters
- Active harmonic filters
- Case study
- System description and recommendations
- Conclusion
- Bibliography
Abstract
power quality is the headache for industrial utilities due dependence on the regional grid systems. The good quality power is always not available but dirty power is often found in the electrical systems. The dirty power causes severe problems in the power system and may damage the electrical equipments and it also consumes large quantity of energy for the same output. Harmonics and voltage surges are the major issues among other power quality issues. Harmonic filter and other mitigation steps should be taken against bad power quality. In this paper, power quality issues and their generation are assessed in detail. power quality and harmonics analysis is the prime requirement for knowing the intensity and cause of the dirty power. The paper also discusses one case study regarding power quality problems in one industry and their effects, energy conservation, cost and benefits and recommendations.
Keywords: power quality, voltage surge, harmonic filters, energy conservation
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