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Supporting unbalanced grids with induction machine drives by inverters without intermittent energy storage
By: Krischan, K.; Muetze, A.; Seebacher, R.;
2011 / IEEE / 978-90-75815-14-6
This item was taken from the IEEE Conference ' Supporting unbalanced grids with induction machine drives by inverters without intermittent energy storage ' A method for supporting unbalanced grids by utilizing a drive system with induction machine and inverter with no or low intermittent energy storage is proposed. Even though the instantaneous power, that is drawn from the mains is oscillating, the torque and speed of the machine are maintained constant. A strategy for obtaining the time dependent reference values for the flux linkage and the torque building current of a rotor field oriented control of an induction machine is presented. Some necessary enhancements to the control algorithm are discussed. Simulation results show the feasibility of the proposed method and control schemes. Measurement results from a practical implementation are given. A discussion of additional losses inherent to the proposed method and control schemes concludes the paper.
Machine Vector Control
Power Supply Quality
Induction Machine Drives
Time Dependent Reference Value
Torque Building Current
Rotor Field Oriented Control
Control Of Drive
Induction Motor Drives