摘要
根据孤岛情况下混合微电网的运行特点建立了接口换流器的数学模型并设计了基于滑模控制(Slidingmode control,SMC)的接口换流器控制系统。该控制系统将SMC和比例谐振控制(proportion resonant,PR)相结合,同时利用了SMC的快速响应性、强鲁棒性以及PR控制能够抑制谐波的优点。仿真和实验结果表明,该控制系统可以保证接口换流器在不确定和非线性条件下的鲁棒性和快速响应,为微电网提供电压、频率支撑,保证其孤岛后的稳定运行。
Mathematical models of interface convertor are established based on the characteristics of islanding operation in the hybrid micro-grid and the control system for the interface convertor based on sliding-mode control（ SMC） is designed in this paper. Combining SMC with the proportion resonant（ PR）,the control system can take advantage of the following features： fast response,robustness of SMC and the suppression of harmonics of PR. The simulation and experimental results illustrate that the control system can maintain the robustness and fast response of interface convertor under uncertain and nonlinear conditions,which provides voltage and frequency support for micro-grid thus ensures its stable operation after islanding.
出处
《华北电力大学学报（自然科学版）》
CAS
北大核心
2016年第4期8-13,共6页
Journal of North China Electric Power University：Natural Science Edition
基金
中丹国际合作项目智能直流微电网设计与实证(2014DFG72620)
关键词
混合微电网
接口换流器
滑模控制
比例谐振
鲁棒性
hybrid micro-grid
interface convertor
sliding-mode control
proportion resonant
robust
