摘要
单周控制在抑制电源扰动方面有很大优势,但抑制负载扰动的效果却十分不理想。在发生负载扰动时,输出电压不稳定会影响电能质量。为了改善单周控制的这项薄弱环节,在主电路为SVG的基础上,通过对负载扰动进行分析,从能量关系的角度对单周控制器进行改进并提出控制策略,通过MATLAB进行仿真验证。仿真结果表明:改进型单周控制的SVG对负载扰动具有良好的抑制作用。
The one-cycle control enjoys superiority in the power disturbance inhibition,but relatively weak effect in load disturbance inhibition.When the load disturbance occurs,the instable output voltage affects the power quality.In order to improve this situation,the load disturbance on the main circuit of SVG was analyzed to improve the one-cycle controller from the point of energy relations and to propose the control strategy.Simulation with MATLAB shows that the improved one-cycle control of SVG has a significant inhibitive effect on load disturbance.
出处
《化工自动化及仪表》
CAS
2013年第8期1032-1035,共4页
Control and Instruments in Chemical Industry
基金
黑龙江省教育厅科学技术研究项目(12511005)
