A cell capacitor energy balancing control of Modular Multilevel Converter considering the unbalanced AC grid conditions

2014 ◽  
Author(s):  
Jae-Jung Jung ◽  
Shenghui Cui ◽  
Sungmin Kim ◽  
Seung-Ki Sul
Keyword(s):  
Modular Multilevel Converter ◽  
Energy Balancing ◽  
Multilevel Converter ◽  
A Cell ◽  
Balancing Control

Research on the Control Method of STATCOM Based on MMC

2013 ◽  
Vol 448-453 ◽  
pp. 2167-2170
Author(s):  
Kai Li ◽  
Yi Hui Zheng ◽  
Xin Wang ◽  
Li Xue Li ◽  
Gang Yao ◽  
...  
Keyword(s):  
Closed Loop ◽  
Reactive Power ◽  
Control Method ◽  
Modular Multilevel Converter ◽  
Energy Balancing ◽  
Multilevel Converter ◽  
Voltage Fluctuation ◽  
Loop Control ◽  
Voltage Balancing ◽  
High Voltage Direct Current

To realize the STATCOM based on Modular Multilevel Converter (MMC), a simplified double-closed loop structure, simplifying from the control method of High Voltage Direct Current (HVDC) based on MMC, is presented. Considering MMCs DC side using capacitors, a part-controlling method based on energy balancing is proposed, to solve the voltage balancing problem. With the part-controlling fixing the changing capacitors voltage and the simplified double-closed loop control method, voltage fluctuation could be reduced, and the loads reactive power could be compensated. The correctness and the effectiveness of the MMC-STATCOM controlling scheme is verified by Matlab/Simulink.

The Research Status of Modular Multilevel Converter and its Capacitor Voltage Balancing Control

2014 ◽  
Vol 535 ◽  
pp. 153-156
Author(s):  
Ya Ai Chen ◽  
Peng Chen ◽  
Jing Hua Zhou
Keyword(s):  
Modular Multilevel Converter ◽  
Multilevel Converter ◽  
Topology Structure ◽  
Voltage Balancing ◽  
Research Status ◽  
Hvdc System ◽  
Capacitor Voltage ◽  
Working Principle ◽  
Balancing Control

The thesis mainly analyzes the topology structure and the working principle of MMC based VSC-HVDC system; introduces the characteristics and research status of its capacitor voltage balancing control. All of this will lay a foundation for the further research.

scholarly journals Energy balancing in modular multilevel converter systems

2017 ◽  
Vol 65 (5) ◽  
pp. 685-694
Author(s):  
P. Blaszczyk ◽  
K. Koska ◽  
P. Klimczak
Keyword(s):  
Control System ◽  
High Voltage ◽  
High Power ◽  
Power Converter ◽  
Modular Multilevel Converter ◽  
Energy Balancing ◽  
Multilevel Converter ◽  
Test Setup ◽  
Clear View ◽  
Hierarchical Levels

Abstract The modular multilevel converter (MMC) is a well-known solution for medium and high voltage high power converter systems. This paper deals with energy balancing of MMCs. The analysis includes multi-converter systems. In order to provide clear view, the MMC control system is divided into hierarchical levels. Details of control and balancing methods are discussed for each level separately. Finally, experimental results, based on multi-converter test setup, are presented.

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