Wind turbines Wind power 161 Design and construction 87 Renewable energy sources 23 Aerodynamics 20 Wind energy conversion systems 20 Automatic control 17 Turbines 17 Electric power systems 14 Electric power production 13 Blades 11 Mathematical models 9 Power electronics 9 Windmills 7 Power resources 6 Refuse and refuse disposal 6 Battery chargers 5 Materials 5 Arduino (Programmable controller) 4 Battery charges 4 Buildings 4 Environmental aspects 4 Microcontrollers 4 PID controllers 4 Photovoltaic power systems 4 Programmable controllers 4 Prototype, Engineering Design 4 Vertical axis wind turbines 4 Wind power plants 4 Anisotropy 3