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An electric drive system can operate using conventional position, speed and current controllers or other advanced control methods. These control methods provide good dynamic and stationary performances, but they do not take into consideration the conversion efficiency. It is well known that during the transient regimes, e.g. starting and stopping, the conversion efficiency is diminished to about half,...
This paper presents a state space model of a two quadrant chopper and a PWM inverter Fed Interior Permanent Magnet Synchronous Motor (IPMSM) Drive System and its application to Hybrid Vehicles. Using the step-up chopper, a capacity of the battery can become smaller, and regenerate power under braking. The drive system based on optimal control theory for variable multi-output objects is controlled...
This paper presents a robust current control in a three phase grid connected inverter using an LCL filter. This controller is based on the optimal control theory and typically designed in a complex-valued state-space. The proposed current controller has a robust tracking performance for the grid voltage harmonics and robustness to parameter error. Finally, the simulation results are presented to verify...
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