Design and Analysis of Surface-Mounted Pm Generator for Renewable Power Generation
Abstract
Global concerns about climate change have brought significant attention to the generation of electricity from renewable energy sources. Wind turbine technology has gained prominent attention in renewable power generation due to its advantages over other renewable energy sources. In generating electricity from the wind using a wind turbine, one important component is the wind turbine generator. Over the years, several different types of wind generators have been designed. But one thing stands out, since the wind speed, which mainly causes the rotational energy of the turbine blades, could sometimes change with time, the energy input to the generator can equally change with time, but the generator must produce high power output and operate at the best performance. The use of a brushless permanent generator is capable of achieving this. In this thesis, an analytical approach and Finite Element Analysis (FEA) technique are introduced for the design of a highefficiency surfacemounted permanent magnet synchronous generator. This generator is intended for use in a wind turbine that will supply power to a food manufacturing company. The designed 24 slots, 4-pole surface-mounted permanent magnet generator is capable of producing 142kW at a rated speed of 1500rpm. The Finite Element Analysis model is created based on the analytical design method. Structure optimization involves stator tooth width, slot width, number of turns, magnet arc, and magnet size, which are analyzed and simulated using ANSYS MOTOR CAD Software. The design is tested in both no-load conditions and loading conditions. In no-load conditions, the design shows a maximum cogging torque of 65Nm