On a Reverse-Acting Controller for a Wind Energy Conversion System

This experimental data supports research about a reverse-acting controller for a wind energy conversion system whose main goal is to optimize wind power extraction by controlling the duty cycle of a multilevel boost converter (MBC) through maximum power point tracking. A wind power emulator is programmed to provide a range of different wind speeds to activate a three-phase induction motor coupled to a permanent magnet synchronous generator (PMSG). The MBC is connected between de PMSG and a three-phase inverter which finally provides the power to the load. The duty cycle of the MBC is modified by a PI controller, which gains were calculated after obtaining information on several dynamic tests applied to the unified system, which allowed to get an important dynamic richness of the whole system since the experimental tests in the closed-loop verified it. Information was obtained by using two National Instruments data acquisition cards model PCI6024e in Linux real-time platform. A, B, C, D, and E files represent respectively measurements of the output voltage at the MBC output current at the MBC, the rotor angular speed for correspondent wind speeds, optimum rotor angular speed calculated for the different wind speeds in the turbine emulator and the duty cycle at the MBC. The MATLAB Data.m file reads the data and presents five figures. Fig. 1 shows Cp theoretical curve dependant on tip speed ratio and Cp closed-loop transient behavior. Fig. 2 indicates the specific value of the maximum tip speed ratio and its dynamic behavior in the closed-loop. Fig. 3 presents the optimum angular rotor speed before wind changes and angular rotor speed transient behavior in the closed-loop. Fig. 4 depicts the MBC duty cycle, and finally, Fig. 5 illustrates the maximum theoretical power and the measured power at the output of the MBC. Experimental measurements are valuable, and they emphasize the appropriate maximum power extraction in a closed-loop, supporting the reliable performance of the reverse-acting controller. The folder "CSV files" contains the information of *.dat files in comma-separated values format