JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

Prerequisite

Power Electronics and Renewable Energy Systems

Course Objectives:

• To introduce the characteristics of various types of renewable energy sources and converters.
• To explain the importance of storage and sizing of hybrid systems.
• To introduce the control issues of isolated systems.
• To explain the harmonics, power quality, voltage imperfections, power injection issues on the grid by integrating renewable energy sources.

Course Outcomes

After completion of the course, students will be able to:

• Identify the characteristics of renewable energy sources and converters.
• Analyze the importance of storage and sizing of hybrid systems.
• Realize the problems related to isolated systems.
• Analyze the challenges faced by the grid by integrating renewable energy sources

UNIT - I

REVIEW OF CHARACTERISTICS OF POWER SOURCES Basic review of power generation from wind, Solar PV, Thermal, Small hydro, Biomass, Power strategies in each of these energy conversion systems, Review of maximum power point tracking techniques in solar PV and wind (perturb & observe, hill climbs, incremental conductance).

UNIT - II

CONVERTER TOPOLOGIES DC/DC converter (buck, boost, buck boost), DC/AC inverters (sine, triangular, PWM techniques), Phase locked loop for inverters.

UNIT - III

HYBRID SYSTEMS Advantages of hybrid power systems, Importance of storage in hybrid power systems, Design of hybrid power system based on load curve, Sizing of hybrid power systems.

UNIT - IV

ISOLATED SYSTEMS Control issues in isolated systems for voltage and frequency, Small signal stability in isolated power systems, Importance of storage and dump load in isolated systems.

UNIT - V

ISSUES IN INTEGRATION OF RENEWABLE ENERGY SOURCES Overview of challenges in integrating renewable sources to the grid, Impact of harmonics on power quality, need to maintain voltage within a band and fluctuations in voltage because of renewable integration, Power inverter and converter technologies, Mechanism to synchronize power from renewable sources to the grid, Overview of challenges faced in designing power injection from offshore generation sources, Challenges in modeling intermittent nature of renewable power in a power system.

TEXTBOOKS:

• 1. N. Mohan, “Power Electronics, Converters, Applications and Design”,T.M.Undeland, W.P. Robbins, John Wiley and Sons, 1995.
• 2. Hossain, Jahangir, Mahmud, “Renewable Energy Integration Challenges and Solutions Series:Green Energy and Technology”, Apel (Eds.).

REFERENCES:

• 1. Felix A. Farret, M. Godoy Simões,” Integration of Alternative Sources of Energy”, Wiley-IEEE Press December, 2005. M. Tech – II Semester L T P C 0 0 4 2