Wind Energy

Comparative study of three types of controllers for DFIG in wind energy conversion system

This paper presents an enhanced control strategy for Wind Energy Conversion System (WECS) using Doubly-Fed Induction Generator (DFIG). A robust Super-Twisting (STW) sliding mode control for variable speed wind turbine is developed to produce the optimal aerodynamic torque and improve the dynamic performance of the WECS. The electromagnetic torque of …

Read More »

Fifth harmonic and sag impact on PMSG wind turbines with a balancing new strategy for capacitor voltages

The new formulation for the electrical modeling of the three-level converter combined with the new control strategy reveals the capability in mitigating the unbalancing between the capacitors bank voltages. The THD of the output current with the two-level converter and with the three-level converter have propensity to be decremented with …

Read More »

Choice of Pole-Slot Number Combination for PM Generator Direct-Driven by Wind Turbine

Based on comparative study on different pole-slot number combinations and pole-arc coefficients for the 1.5MW directdriven PM wind generator. the following conclusions can be deduced: 1) The pole-slot number combination has significant effect on the positioning torque at no load. Choosing the fractional slot number per pole and per phase …

Read More »