Performance optimization of a dual-rotor wind turbine system

Abstract

We are building an efficient and smart wind turbine system. The significant features of this turbine are its dual rotor blade system which is positioned horizontally at upwind and downwind locations, its drive train which is installed horizontally inside the tower with a new efficient induction generator, and its control and safety systems. The project focuses mainly on the methodology to analyze the power flow performance. The scientific literature indicates that a dual-rotor system could extract additional 20-30% power compared to a single rotor system from the same wind stream. Our wind tunnel test indicates that a scaled-down version of the dual-rotor turbine system may produce up to 60% more power than a single-rotor system. Designed for on-site power generation by commercial, industrial, and residential electric users in remote locations, our model uses wind tunnel effect to capture and amplify wind for optimized production of energy. It is intended that this turbine system will be available in tower-mounted design and can capture wind in regions where it has low speed wind. The successful design should allow an economical transition to a utility scale.

Comparative Study of Synergetic Controller with Super Twisting Algorithm for Rotor Side Inverter of DFIG

“…MRWT is among the new systems that have emerged recently as a solution to overcome the disadvantages of traditional turbines, where two turbines of different capacity are used to increase the mechanical energy gained from wind energy [52]. Fig.…”

“…Each turbine has a different value for tip speed ration due to the difference in wind speed of two turbines and also the rotational speed of the two turbines are different from each other, using equation ( 4) we can calculate tip speed ratio for each turbine [52].…”

Performance and Economic Analysis of Multi-Rotor Wind Turbine

“…Yap et al [13] discussed the electricity generation due to dual rotor wind turbine located near the exhausting gases in a plant and its effects on the performance of cooling tower. Habash et al [14] investigated a dual rotor scaled down turbine structure and conclude that a dual rotor turbine may produce up to 60% more power than a single rotor turbine. Some of the researchers [15][16] made a comparison of single rotor & dual rotor turbines under transient disturbances.…”