A novel double loop control design and analysis of STATCOM

2005 ◽  
Author(s):  
Zhang Yong-gao ◽  
Kang Yong ◽  
Liu Xiao-yuan ◽  
Liu Li-ming ◽  
Zhu Peng-cheng
Keyword(s):  
Control Design ◽  
Double Loop ◽  
Loop Control

Double-Loop Control of Inverter with LCL Filter in Electrical Power System Based on Improved Instantaneous Symmetrical Component

2013 ◽  
Vol 676 ◽  
pp. 265-268
Author(s):  
Yi Ren ◽  
Jian Ru Wan ◽  
Li Guang Shi ◽  
Ran Liu
Keyword(s):  
Power System ◽  
Reactive Power ◽  
Electrical Power ◽  
Double Loop ◽  
Electrical Power System ◽  
Lcl Filter ◽  
Loop Control ◽  
Negative Sequence ◽  
Symmetrical Component ◽  
Sequence Components

An improved instantaneous symmetrical component method is adopted to improve the performance of inverter with LCL filter under asymmetric voltage conditions in electrical power system. Positive and negative sequence components in voltage and current in electrical power system are calculated with fewer calculation time,which is suitable for pratical application.In addition,this paper analyses active and reactive power in the system.A double-loop control strategy is proposed to eliminate the influence of double frequency components in power and negative sequence current.The simulation results verify its feasibility and effectiveness.

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