Control of wind energy systems

Abstract

The constant growth in the world energy consumption is constantly growing every year. With the increment in energy usage and decline of non-renewable energy, renewable energies are brought in to meet the demands. The demand for wind energy is increasing as it is clean and free to use [1]. The use of Horizontal-Axis Wind Turbine (HAWT) and Doubly-Fed Induction Generator (DFIG) are used to extract large amount of energy. In addition, Maximum Power Point Tracking (MPPT) technique is introduced to maximise the overall output power of the system. Hill Climbing Search (HCS) uses the difference in power to check for maximum power point (MPP). If the difference in power is positive, the rotor speed will increase, else otherwise.