INTRODUCTION OF POWER ELECTRONICS FOR RENEWABLE ENERGY SYSTEMS :
Power electronics concerns the conversion and control of electrical power with the aid of power semiconductor devices, which include diodes, thyristors, triacs, gate turn-off thyristors (GTO), power metal oxide silicon field effect transistors (MOSFET), insulated gate bipolar transistors (IGBT) and integrated gate-commutated thyristors (IGCT).
Their applications include regulated power supplies (DC and AC), uninterruptible power supply (UPS) systems, electrochemical processes (such as electroplating, electrolysis, anodizing and metal refining), control of heating and lighting, electronic welding, power line static var compensators (SVC or STATCOM) and flexible AC transmission systems (FACTS), active harmonic filters (AHFs), high-voltage direct current (HVDC) systems, photovoltaic (PV) and fuel cell (FC) converters, electronic circuit breakers, high-frequency heating, energy storage and motor drives.
The extensive applications of power electronics in global industrialization have been somewhat unprecedented in history. We now live in a global society in which the nations in the world are highly interdependent. In the
present trend, it is expected that future wars in the world will be fought on an economic front rather than military. In future, all the nations in the world will face severe industrial competitiveness for their survival and prosperity.
In such an environment, power electronics and motion control will play a very important role. In addition, as the price of energy increases and environmental regulations become more stringent, power electronics applications will spread practically everywhere. The role of power electronics in this century will be as, if not more, important as computer, communication and information technologies.