Reducing output voltage THD of a three-phase inverter with non-linear load using disturbance observer

2017 ◽  
Author(s):  
Shahab Valizade Alavi ◽  
Farzad Tahami
Keyword(s):  
Disturbance Observer ◽  
Output Voltage ◽  
Phase Inverter ◽  
Linear Load ◽  
Three Phase ◽  
Non Linear ◽  
Non Linear Load ◽  
Three Phase Inverter

scholarly journals Design and Simulation of an Isolated Seven Level Three Phase Inverter

2021 ◽  
Vol 9 (8) ◽  
pp. 1458-1462
Author(s):  
Debadyuti Banerjee
Keyword(s):  
Output Voltage ◽  
Pulse Width Modulation ◽  
Reference Signal ◽  
Signal Frequency ◽  
Isolation System ◽  
Phase Inverter ◽  
Three Phase ◽  
Control Scheme ◽  
Multi Level ◽  
Three Phase Inverter

Abstract: This paper proposes a seven level three phase inverter with PWM control scheme for better performance and magnitude control of output voltage. This proposed inverter offers a proper isolation between load and inverter circuit and different phases also. This inverter is capable of generating waveforms independently for different phases. By changing the reference signal frequency output frequency can be changed which is capable to make the system of variable frequency. Use of reverse voltage topology has increased the magnitude of output voltage. Proper application of diode makes the unidirectional switch bidirectional and decreases the number of switches. Keywords: Pulse width modulation, multi-level topology, bi-directional switches, isolation system

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