摘要
并联型有源电力滤波器(APF)因其优越性能早已成为当今工业领域谐波治理的最有效工具。APF在现场运行的工况十分复杂,各种确定和不确定性的干扰因素总是存在,对装置的可靠运行产生了非常严重的危害。建立了APF在a,b,c坐标系下复杂工况的精确数学模型;通过等价变换,将模型的参数摄动转化为周期干扰的一部分;利用重复控制和无源性控制结合的方法实现了APF的鲁棒电流控制,其中重复控制补偿周期干扰,无源性控制确保重复控制的收敛,并抑制非周期干扰的影响。仿真和工程应用验证了该数学模型的准确性,控制算法简单、鲁棒性强、工程实用价值高。
Shunt active power filter（APF） has become the most effective tool for harmonic control in the industrial fi- eld because of its excellent performance.But in the field operation of APF is very complex, all kinds of interference factors of certainty and uncertainty always exist,the reliable operation of the device has a very serious harm.An accu- rate mathematical model of APF in a, b, c coordinates is established.By means of equivalent transformation, the para- meters perturbation of the model are transformed into a part of periodic disturbance.The robust current control of APF is realized by the combination of repetitive control and passive control,the repetitive control compensates period dist- urbance, the passive control ensures the convergence of the repetitive control and the effect of the aperiodic disturb- ance is suppressed.The accuracy of the mathematical model is verified by the simulation and engineering application. The control algorithm is simple and the practical engineering value is high.
作者
舒展
蔡霞
陈波
唐亮
SHU Zhan CAI Xia CHEN Bo TANG Liang(State Grid Jiangxi Electric Power Company Electric Power Research Institute, Nanchang 330096, Chin)
出处
《电力电子技术》
CSCD
北大核心
2017年第9期79-81,112,共4页
Power Electronics
