Control of matrix converters for AC power supplies using genetic algorithms

This paper describes the design philosophy, simulation and testing of AC power supplies using matrix converters. Instead of the classical design using a diode bridge rectifier, a DC link and a PWM inverter, a 3-phase to 3-phase direct AC-AC (matrix) converter has been used as the power conditioning core of the system. An optimizing control design method, using a genetic algorithm approach, has been used which yields designs to minimize a cost function taking into account both the transient and steady state performance targets. A 40 kVA ground power supply unit (GPU) for aircraft servicing and a 10 kVA advanced mobile generator set have been used as design examples to test the matrix converter approach in this application. Extensive simulations and experimental tests prove also the efficiency of the designed systems in meeting the international standards requirements.