Abstract：This paper studied static synchronous compensator (STATCOM) connected to the system via intermediate taps on the primary windings of the distribution transformer. For Dyn11 connection transformer, the effects of injection currents on current distribution in the transformer wingdings were analyzed. The theory analyses indicate that it is valid to inject currents via winding taps for reactive power compensation. The Euler-Lagrangian (E-L) model of the distribution transformer-static synchronous compensator (DT-STATCOM) was established. The amplitude and phase angle differences introduced by transformer winding connection were compensated. The passivity-based control (PBC) can decouple active and reactive power control. Damping injection was applied to improve the dynamic performance of the control system and achieve fast reactive power compensation response. Finally, both simulation and experimental results verified the current distribution in the windings as well as the effectiveness of the reactive power compensation system integrated with distribution transformer based on PBC method.
雷二涛, 尹项根, 赖锦木, 陈玉, 文明浩. 配电变压器-静止同步补偿器的补偿机理及无源控制技术[J]. 电工技术学报, 2017, 32(16): 284-293.
Lei Ertao, Yin Xianggen, Lai Jinmu, Chen Yu, Wen Minghao. Compensation Mechanism and Passivity-Based Control Technology for Distribution Transformer-Static Synchronous Compensator. Transactions of China Electrotechnical Society, 2017, 32(16): 284-293.
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2017, Vol. 32 
