Novel reduced-order small-signal model of a three-phase PWM rectifier and its application in control design and system analysis

1998 ◽  
Vol 13 (3) ◽  
pp. 511-521 ◽  
Author(s):  
Hengchun Mao ◽  
D. Boroyevich ◽  
F.C.Y. Lee
Keyword(s):  
System Analysis ◽  
Control Design ◽  
Small Signal ◽  
Pwm Rectifier ◽  
Signal Model ◽  
Reduced Order ◽  
Small Signal Model ◽  
Three Phase

scholarly journals Impedance Modeling and Stability Analysis for Cascade System of Three-Phase PWM Rectifier and LLC Resonant Converter

Energies ◽  
2018 ◽  
Vol 11 (11) ◽  
pp. 3050 ◽  
Author(s):  
Rutian Wang ◽  
Yuyang Wu ◽  
Guoqing He ◽  
Ying Lv ◽  
Jiaxing Du ◽  
...  
Keyword(s):  
Resonant Converter ◽  
Pwm Rectifier ◽  
Output Impedance ◽  
Cascade System ◽  
Signal Model ◽  
Impedance Model ◽  
Small Signal Model ◽  
Three Phase ◽  
Llc Resonant Converter ◽  
The Stability

In this paper; the impedance model of PWM rectifier and LLC resonant converter are deduced, and the stability analysis of cascade system is studied. The principle of three-phase PWM rectifier is introduced; and the small signal model in d-q coordinate system is deduced. The expression of dc side output impedance model for PWM rectifier is derived. The LLC resonant converter is operated in a fixed-frequency state, and the LLC resonant converter is modeled as a small signal model. On this basis, the input impedance model expression of the LLC resonant converter is derived. According to the impedance stability criterion, it can seen that the amplitude of input impedance is greater than the amplitude of output impedance in a certain frequency domain. In addition, the Nyquist curve is not around the point (−1,0), which can judge that the cascade system is stable. In simulation software, a cascade system simulation is built and corresponding simulation curves are obtained, which verifies the stability of the cascade system.

Divided DQ Small-Signal Model: A New Perspective for the Stability Analysis of Three-Phase Grid-Tied Inverters

2019 ◽  
Vol 66 (8) ◽  
pp. 6493-6504 ◽  
Author(s):  
Zhikang Shuai ◽  
Yang Li ◽  
Weimin Wu ◽  
Chunming Tu ◽  
An Luo ◽  
...  
Keyword(s):  
Stability Analysis ◽  
Small Signal ◽  
Signal Model ◽  
Small Signal Model ◽  
Three Phase ◽  
New Perspective ◽  
The Stability

scholarly journals Reduced-Order Small-Signal Model of Microgrid Systems

2015 ◽  
Vol 6 (4) ◽  
pp. 1292-1305 ◽  
Author(s):  
Md. Rasheduzzaman ◽  
Jacob A. Mueller ◽  
Jonathan W. Kimball
Keyword(s):  
Small Signal ◽  
Signal Model ◽  
Reduced Order ◽  
Small Signal Model
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