Electric Power Quality Monitoring and Mitigation |

Course Introduction

Power quality is an issue that is becoming increasingly important to electricity consumers at all levels of usage. Sensitive power electronic equipment and non-linear loads are widely used in industrial, commercial, and domestic applications, leading to distortion in voltage and current waveforms. With ongoing regulatory, policy, and structural changes in the Indian electricity industry, following the Electricity Act 2003, the issue of PQ is poised to become a figure-of-merit amongst the competing distribution utilities. Improvement of PQ has a positive impact on the sustained profitability of the distribution utility on the one hand and customer satisfaction on the other.

The main objective of the course is to enhance the knowledge of the participants in the emerging area of power quality and several key issues related to its modeling, assessment, and mitigation.

The course will provide a platform for an in-depth discussion on the various challenges and their possible remedies with respect to maintaining power quality in the electricity sector, which will benefit participants from academic and R&D institutions, professional engineers from utilities, industries, and policymakers.

The course will introduce the fundamentals of power quality problems, various causes that create the distortion in the power supply, their mitigation, and power quality standards. The course will also cover the application of digital signal processing and artificial intelligence techniques for data compression, feature extraction, and classification of disturbances. Besides these, a few fault location algorithms will also be discussed. Demonstration of the findings in the recent research work on power quality issues carried out at I.I.T. Kanpur will also be presented.

Course Objectives

Apply and gain an in-depth knowledge of electrical power systems, quality, and troubleshooting

Discuss the terms and definitions of power quality, power quality evaluation procedure, voltage imbalance, power frequency variations, CBEMA, and ITI curves

Enumerate the different sources of voltage sags and interruptions, including the fundamental principles of protection, evaluating the economics of different ride-through alternatives, and the utility system fault-clearing issues

Identify the different sources of transient overvoltages, principles & devices for overvoltage protection, utility system lightning protection, and computer tools for transients analysis

Describe the fundamentals of harmonics, including the power system quantities under nonsinusoidal conditions, harmonic indices, harmonic sources from commercial & industrial loads, and become aware of the effects of harmonic distortion on capacitors, transformers, motors, etc.

Distinguish the applied harmonics, harmonic distortion evaluations, devices for controlling harmonic distortion, and the standards on harmonics

Explain the significance of long-duration voltage variations, including the principles of regulating the voltage, devices for voltage regulation, and regulating utility voltage with distributed resources

Employ the principles of power quality benchmarking, illustrate the benchmarking process, and give emphasis on power quality contracts, power quality insurance, and power quality state estimation

Enumerate the different distributed generation technologies, power quality issues, and interconnection standards related to distributed generation and power quality

List the resources, reasons for grounding, typical wiring and grounding problems, as well as the solutions to these problems

Carry out the proper procedure for power quality monitoring, application of intelligent systems, and become familiar with the power quality monitoring standards