Research on D-STATCOM Double Closed-Loop Control Method Based on Improved First-Order Linear Active Disturbance Rejection Technology

被引：7
作者：
Ma, Youjie [1 ]
Sun, Xiaotong [2 ]
Zhou, Xuesong [2 ]
机构：
[1] Tianjin Univ Technol, Tianjin Key Lab Control Theory & Applicat Complex, Tianjin 300384, Peoples R China
[2] Tianjin Univ Technol, Sch Elect & Elect Engn, 391 Binshui West Rd, Tianjin 300384, Peoples R China
来源：
ENERGIES | 2020年 / 13卷 / 15期
基金：
中国国家自然科学基金;
关键词：
D-STATCOM; principle of deviation control; linear active disturbance rejection control; double closed loop; anti-interference characteristics; SYSTEM;
D O I：
10.3390/en13153958
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
The application of a distribution static synchronous compensator (D-STATCOM) is the best technical means to solve the problem of reactive power compensation and harmonics. The D-STATCOM system has the characteristics of variable parameters, strong coupling, nonlinearity and multi-variability. In order to improve the speed of the dynamic tracking response and anti-disturbance capability of the D-STATCOM, the article proposes an improved Linear Active Disturbance Rejection Controller (LADRC) based on the total disturbance deviation control method. Combined with double closed-loop control, the inner loop takes the current as the state variable, and the outer loop uses the DC side output voltage as the state variable to achieve robust stability of the D-STATCOM and controller output. The simulation results show that the improved LADRC is more stable than the traditional LADRC in controlling the DC voltage waveform of the compensator, reactive current tracking and reactive power compensation waveform when it is disturbed, which verifies the superiority and feasibility of the improved LADRC.
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页数：19
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