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Output voltage waveforms according to all kinds of combination of main circuit structure, load quality and control manner for output voltage are analyzed systematically at ideal condition in voltage-source PWM inverter so that all kinds of existing quality of combination and the rule of influence to output voltage waveform for voltage-source PWM inverter are obtained and a state analysis method is...
In this paper, the selective harmonic elimination (SHE) technique is investigated to eliminate harmonic brought by PWM inverter. This technique involves the solutions of nonlinear, transcendental equations set representing the relation between the amplitude of fundamental wave and each order harmonic and the switching angles. Newton iteration method is usually applied to solve the equations set, but...
A state combination method is presented for a voltage-source PWM inverter. Main circuit states are obtained through the on-off state combination of switch devices, and valid main circuit states are determined according to the characteristic of the voltage-source PWM inverter. The ideal output voltage waveform of the voltage-source PWM inverter is determined by the combination of all kinds of valid...
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