scholarly journals Complex Fourier Series Mathematical Model of a Three-Phase Inverter with Improved PWM Output Voltage Control

2012 ◽  
Vol 123 (7) ◽  
Author(s):  
P. Zaskalicky ◽  
B. Dobrucky
Keyword(s):  
Mathematical Model ◽  
Fourier Series ◽  
Output Voltage ◽  
Voltage Control ◽  
Phase Inverter ◽  
Three Phase ◽  
Complex Fourier Series ◽  
Three Phase Inverter

The Model of Distributed Grid-Connected DC Micro Network Inverters and Double Loop Control Method

2013 ◽  
Vol 760-762 ◽  
pp. 1131-1135
Author(s):  
Jian Ye Liu ◽  
Chang Ge Tian ◽  
Shan Shan Jiang ◽  
Zhi Peng Ge
Keyword(s):  
Mathematical Model ◽  
Control System ◽  
Double Loop ◽  
Small Signal ◽  
Loop Control ◽  
Pwm Inverter ◽  
Phase Inverter ◽  
Analysis And Design ◽  
Three Phase ◽  
Three Phase Inverter

In this paper, for parallel operation of the three-phase PWM inverter control system, we put forward and set up the equivalent grid inverter mathematical model. In the process of grid inverter equivalent model is discussed, for the three-phase inverter system is a nonlinear system, in order to facilitate the performance of the system analysis and design of the control system, the transfer function of the system were analyzed to the linearized system. After the linearization control the theory system can be discussed using the method of classical. On the premise of system average model we get the static working point system, according to the law of small signal, we can obtain the small signal mathematical model .At the same time, discusses the three phase inverter design of double loop control system.

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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