Author(s)

Jamna Ayadathil¹, Jamuna Venkatesan²

¹Department of Electrical and Electronics Engineering, Misrimal Navajee Munoth Jain Engineering College (Affiliated to Anna University), Chennai, India.
²Department of Electrical and Electronics Engineering, Jerusalem College of Engineering (Affiliated to Anna University), Chennai, India.

In this paper, a hybrid control strategy for a matrix converter fed wind energy conversion system is presented. Since the wind speed may vary, output parameters like power, frequency and voltage may fluctuate. Hence it is necessary to design a system that regulates output parameters, such as voltage and frequency, and thereby provides a constant voltage and frequency output from the wind energy conversion system. Matrix converter is used in the proposed solution as the main power conditioner as a more efficient alternative when compared to traditional back-back converter structure. To control the output voltage, a vector modulation based refined control structure is used. A power tracker is included to maximize the mechanical output power of the turbine. Over current protection and clamp circuit input protection have been introduced to protect the system from over current. It reduces the spikes generated at the output of the converter. The designed system is capable of supplying an output voltage of constant frequency and amplitude within the expected ranges of input during the operation. The matrix converter control using direct modulation method, modified Venturini modulation method and vector modulation method was simulated, the results were compared and it was inferred that vector modulation method was superior to the other two methods. With the proposed technique, voltage transfer ratio and harmonic profile have been improved compared to the other two modulation techniques. The behaviour of the system is corroborated by MATLAB Simulink, and hardware is realized using an FPGA controller. Experimental results are found to be matching with the simulation results.

Hybrid Control Strategy, Wind Energy Conversion System, Three Phase Matrix Converter, Space Vector Modulation, Over Current/Clamp Circuit Protection, FPGA Controller

Ayadathil, J. and Venkatesan, J. (2016) Hybrid Control Strategy for Matrix Converter Fed Wind Energy Conversion System. Circuits and Systems, 7, 3038-3053. doi: 10.4236/cs.2016.710259.