丁敏华,姜干才,徐胜光,杨达亮,吴宁.新型无锁相环DSTATCOM直接电流控制方法[J].电测与仪表,2017,54(24):. DING MINHUA,JIANG GANCAI,XU SHENGGUANG,YANG DALIANG,WU NING.A novel direct current control method for DSTATCOM without PLL[J].Electrical Measurement & Instrumentation,2017,54(24):.
新型无锁相环DSTATCOM直接电流控制方法
A novel direct current control method for DSTATCOM without PLL
Conventional DSTATCOM direct current control method needs phase-locked loop (PLL) and coordinate transformation, making it difficult to implementation. A novel direct current control method for DSTATCOM without PLL is proposed in this paper. By establishing the mathematical model of DSTATCOM，the active power unit component and reactive power unit component of the distribution network voltage are calculated based on the principle of vector equivalence，and the reactive power compensation control can be realized without PLL or coordinate transformation．The novel control method is proved feasible by the MATLAB/Simulink simulation results. The DSTATCOM system experimental platform is established using DSP TMS320F2812 controller and intelligent power module(IPM) PM300DVA120, the experimental results are excellent when the switching frequency is 10 kHz and the dead time is 4μs．The proposed method in this paper has a clear physical meaning and is easy to be realized with embedded controller. The experimental results indicate that the proposed method can realize the flexible reactive power compensation control of the output current lead-lag voltage and has good dynamic and static response performance．
