Condition monitoring and vibration analysis of asynchronous generator of the wind turbine at high uncertain windy regions in India

Abstract

Wind energy is abundant in nature and it is important to harvest the maximum quantity of energy from it. The loss of energy conversion occurs in a wind turbine is due to improper maintenance and lag of condition monitoring system. If the wind turbine is controlled appropriately then the efficiency will be eventually increased. The ultimate aim of condition monitoring and vibration analysis is to offer an advance warning of failures or performance issues in the generator of the wind turbine. The previous researches on vibration in wind turbine mainly concentrate on the vibration response of wind turbine blades and structure only based on their dynamic properties but this paper takes into account dynamic properties, operating conditions, and environmental impact to study the condition monitoring of the 250 kW wind turbine generator. The generator of the wind turbine is attached with the gearbox in a cantilever position and the chances of vibration and failure are high, once the generator is caught failure then it is beside difficult to de-erect it. Therefore, consistency in the running of the generator is very much significant. The replacement of the generator is too expensive and it ingests a large time. Hence the condition monitoring and vibration analysis of the 4 pole, asynchronous generator of the wind turbine is studied in this paper to diminish the key failure and augment the power generation of the 250 kW constant pitch and constant speed wind turbine in Muppandal, India.