摘要
基于Buck-Boost电压平衡器构架的双极性直流微电网获得了广泛研究。其中有效地控制电压平衡器使系统正、负极电压保持相等,从而保证系统的供电电能质量。针对Buck-Boost电压平衡器的控制,设计一种双积分滑模控制器。该方法考虑了系统的非线性和工作动态,并采用双积分滑模面以减小稳态误差。实验结果表明,相比传统的PI控制器,本文设计的控制器能有效缩短动态调节时间和减小正、负极电压差值。
The bipolar DC micro-grid based on the Buck-Boost voltage balancer framework has been widely studied.The effective control voltage balancer keeps the positive and negative voltage of the system equal,to ensure the power quality of the system.Aiming at the control of Buck-Boost voltage balancer,a double integral sliding mode controller is designed.This method takes into account the nonlinearity and dynamic state of the system,and adopts double integral sliding surface to reduce the steady-state error.The experimental results show that compared with the traditional PI controller,the controller designed in this paper can effectively shorten the dynamic adjustment time and reduce the difference between positive and negative voltage.
作者
黄奇林
曹江华
丁杰
Huang Qilin;Cao Jianghua;Ding Jie(School of Electric Power,South China University of Technology,Guangzhou 510640,China)
出处
《电子技术应用》
2018年第12期131-134,共4页
Application of Electronic Technique
