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Deadbeat control of a three-phase inverter with an output LC filter

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1 Author(s)
Kukrer, O. ; Dept. of Electr. & Electron. Eng., Eastern Mediterranean Univ., Magosa, Turkey

The discrete-time control of a three-phase inverter with an output LC filter is described based on space vectors. The mathematical model of the inverter-filter system is first obtained by using space vectors to represent three-phase quantities. Deadbeat control laws are derived for no-load and resistive-load cases. Then, a deadbeat control law is obtained for the case when the load draws current of any waveshape from the inverter-filter. It is shown that deadbeat control of output voltage can be achieved in two control steps. The manipulated variable, which is the voltage vector demanded from the inverter, is implemented using the space vector modulation technique. Simulation results for various operating conditions are presented

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Power Electronics, IEEE Transactions on  (Volume:11 ,  Issue: 1 )