Matrix converter as unified power flow controller: design and implementation of decoupled direct power controllers

2015 ◽  
Author(s):  
J. Monteiro ◽  
J. Fernando Silva ◽  
S. Pinto
Keyword(s):  
Power Flow ◽  
Controller Design ◽  
Matrix Converter ◽  
Unified Power Flow Controller ◽  
Direct Power ◽  
Design And Implementation ◽  
Flow Controller ◽  
Power Flow Controller

scholarly journals Robust Damping Controls for a Unified Power Flow Controller

2006 ◽  
Vol 6 (2) ◽  
Author(s):  
Abu H.M.A. Rahim ◽  
Jamil M Bakhashwain ◽  
Samir A Al-Baiyat
Keyword(s):  
Power Flow ◽  
Controller Design ◽  
Unified Power Flow Controller ◽  
Combined Application ◽  
Damping Control ◽  
Stable Operating ◽  
Wide Range ◽  
Fixed Parameter ◽  
Flow Controller ◽  
Power Flow Controller

This article investigates the various damping controls of the unified power flow controller (UPFC). A detailed dynamic model of the UPFC including the possible damping control parameters has been derived. A method of determining the stable operating states of the nonlinear system model has been presented. Fixed parameter robust controllers for the identified controls have been designed satisfying the robustness conditions on performance and stability. The robust controller design has been carried out with the aid of a simple graphical 'loop-shaping' construction procedure. Simulation studies show that both robust series converter voltage magnitude and shunt converter phase angle provide extremely good damping. Combined application of the above two controls, however, gives the best damping profile over a wide range of operation. PI controllers having optimized gain settings were employed to evaluate the robustness of the proposed controllers.

scholarly journals Control of a Modular Multilevel Matrix Converter for Unified Power Flow Controller Applications

Energies ◽  
2020 ◽  
Vol 13 (4) ◽  
pp. 953 ◽  
Author(s):  
Alberto Duran ◽  
Efrain Ibaceta ◽  
Matias Diaz ◽  
Felix Rojas ◽  
Roberto Cardenas ◽  
...  
Keyword(s):  
Power Flow ◽  
Matrix Converter ◽  
Unified Power Flow Controller ◽  
Flexible Ac Transmission Systems ◽  
Transmission Systems ◽  
Feeding Mode ◽  
Flexible Ac Transmission ◽  
Flow Controller ◽  
Ac Transmission ◽  
Power Flow Controller

The modular multilevel matrix converter has been proposed as a suitable option for high power applications such as flexible AC transmission systems. Among flexible AC transmission systems, the unified power flow controller stands out as the most versatile device. However, the application of the modular multilevel matrix converter has not been thoroughly analyzed for unified power flow controller applications due to the sophisticated control systems that are needed when its ports operate at equal frequencies. In this context, this paper presents a cascaded control structure for a modular multilevel matrix converter based unified power flow controller. The control is implemented in a decoupled reference frame, and it features proportional-integral external controllers and internal proportional multi-resonant controllers. Additionally, the input port of the modular multilevel matrix converter is regulated in grid-feeding mode, and the output port is regulated in grid-forming mode to provide power flow compensation. The effectiveness of the proposed vector control system is demonstrated through simulation studies and experimental validation tests conducted with a 27-cell 5 kW prototype.

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