摘要
为了改善电网模拟器输出电压波形质量,本文在滑模控制的基础上,提出一种改进趋近律的滑模控制策略,给出了滑模控制趋近律的改进过程和性能分析。分析和对比了电网模拟器得拓扑结构,选择了适合本文研究得电网模拟器得拓扑结构。建立了单项全桥逆变器得数学模型,并设计了基于改进滑模控制得电网模拟器。基于Simu Link搭建了系统的仿真模型,并搭建了系统的实验平台,仿真和实验结果验证了改进趋近律的滑模控制能够保证趋近运动的快速性,同时能够有效的削弱抖动,极大地提高了电网模拟器输出电压波形的质量。
In order to improve the quality of output voltage waveform grid simulator,on the basis of sliding mode control,this paper proposes an improved sliding mode control strategy of reaching law,the sliding mode control is given of the reaching law improvement process and performance analysis.The topology structure of power network simulator is analyzed and compared.The mathematic model of single-term full-bridge inverter is established.Based on SimuLink has set up a simulation model for the system,and has set up a experimental platform for the system,the simulation and experimental validation of the sliding mode control to improve the reaching law approach can ensure the rapidity of movement,and at the same time can effectively weaken the jitter,greatly improve the quality of the output voltage waveform grid simulator.
作者
李修旋
陈国初
张鑫
LI Xiu-xuan;CHEN Guo-chu;ZHANG Xin(College of Electrical Engineering,Shanghai Dianji University,Shanghai 201306,China)
出处
《新型工业化》
2018年第7期40-45,共6页
The Journal of New Industrialization
基金
上海市科委社发领域科研项目(编号:17DZ1201200)
教育部留学回国人员科研启动基金(编号:教外司留[2014]1685号)
关键词
电网模拟器
拓扑结构
滑模控制
改进趋近率
电压波形
Power grid simulator
Topological structure
Sliding mode control
Improved approach rate
Voltage waveform
