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Indian Institute of Technology Delhi

Power Quality

Indian Institute of Technology Delhi and NPTEL via Swayam


This course is intended to provide tools to classify, quantify, and analyze the power quality problems and to provide practical engineering solutions to mitigate these problems. The objectives of this course are as follows.• To understand the various power quality issues.• To understand the concept of power and power factor in single-phase and three-phase systems supplying nonlinear loads.• To understand the conventional compensation techniques used for power factor correction and load voltage regulation.• To understand the active compensation techniques used for reactive power compensation, load balancing, power factor correction, and load voltage regulation.• To understand the active filter techniques used for harmonics elimination.• To understand the power quality improvement in SMPS, drive systems, and renewable energy systems.INTENDED AUDIENCE : Primarily the graduate students working in the area of energy economics and energy policy domain. This course will also be useful for general audiencePREREQUISITES : Circuit and Networks, Basic Electrical Engineering, Power Electronics, Power System, and Linear Control SystemINDUSTRY SUPPORT : ABB Group, Schneider Electric, General Electric (GE), Siemens, Captech, Electrical India


Week 1 : Power quality: An Introduction Week 2 : Power quality standards and monitoring
Week 3 : Passive Shunt and Series Compensation Week 4 : Active Shunt Compensation: DSTATCOM Week 5 : Active Series Compensation: DVR Week 6 : Unified Power Quality Compensators
Week 7 : Loads That Cause Power Quality Problems Week 8 : Passive Power Filters Week 9 : Shunt Active Power Filters Week 10 : Series Active Power Filters Week 11 : Hybrid Active Power Filters Week 12 : AC-DC Converters That Cause Power Quality Problems; Improved Power Quality Converters: AC-DC Converters; Improved Power Quality Converters; Power quality improvement in electrical system applications

Taught by

Prof. Bhim Singh

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