Title :
Deadtime effect on three phase unbalanced load for PWM inverters
Author :
Khan-ngern, Werachet ; Kaitwanidvilai, Somyot
Author_Institution :
Fac. of Eng., King Mongkut´´s Inst. of Technol., Bangkok, Thailand
Abstract :
In this paper, the analysis of deadtime effect on unbalanced load for three phase PWM inverters. The actual error voltage of unbalance is shown that it is dependent upon not only load current direction, but also the amplitude and phasor of the load. The simulated and measured results for sinusoidal PWM, harmonics injection PWM and discontinuous PWM are analyzed with 4.88 μs deadtime of 2% of switching time which shows close agreement between both of results with a good support from the analysis
Keywords :
DC-AC power convertors; PWM invertors; harmonic distortion; load (electric); power conversion harmonics; switching circuits; deadtime effect; discontinuous PWM; error voltage; harmonics injection PWM; load amplitude; load current direction; load phasor; sinusoidal PWM; switching time; three phase unbalanced load; three-phase PWM inverters; Circuit simulation; Equations; Error analysis; Frequency; MATLAB; Pulse width modulation; Pulse width modulation converters; Pulse width modulation inverters; Space vector pulse width modulation; Voltage;
Conference_Titel :
Power Electronics and Motion Control Conference, 2000. Proceedings. IPEMC 2000. The Third International
Conference_Location :
Beijing
Print_ISBN :
7-80003-464-X
DOI :
10.1109/IPEMC.2000.884604
