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SVPWM is widely applied in the control of the three-phase inverter. The phase angle of the grid takes part in the coordinate transformation and PLL is necessary. However, the non-ideal grid may affect the accuracy of the phase angle. To eliminate the influence of the non-ideal grid, the PLL technology should be improved and it may complicate the control strategy. This paper proposes a novel grid frequency...
This paper presents a dual-buck full-bridge inverter (DBFBI) with the sinusoidal pulse width modulation (SPWM) and single current sensor. Shoot-through problem does not exist. All the power devices and filter inductors operate at each half line cycle, thus the efficiency can be increased. Only one switch works at high frequency when the reference current and the output voltage have the same polarity,...
Parallel operation of inverters improves the reliability, maintainability, expandability, and standardization. Many control methods have been proposed. The master- slave method can not realize the redundancy because the slave modules are dependent on the master module, the wireless control method using frequency and voltage droop technique presents too poor output characteristics. Distributed control...
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