STATCOM的内部电流非线性H∞跟踪控制  

Internal Current Non-linear H∞ Tracking Control of STATCOM

作　　者：王斌[1] 翟军勇[1] 雷邦军[1] 

机构地区：[1]东南大学复杂工程系统测量与控制教育部重点实验室,江苏南京210096

出　　处：《控制工程》2015年第1期45-49,共5页Control Engineering of China

基　　金：国家自然科学基金项目(61104068;61473082);国家电网公司大电网重大专项资助项目课题(No.SGCC-MPL G022-2012);中央高校基本科研业务费专项资金资助(2242013R30006)

摘　　要：研究静止同步补偿器(STATCOM)内部电流的跟踪控制问题。建立STATCOM的数学模型,通过外部电压环来设计参考电流信号,从而得到STATCOM的电流跟踪偏差模型。采用直接反馈线性化和Lyapunov函数的方法,设计H∞控制器,使得内部电流达到快速跟踪参考信号的目的,并且具有抑制外部干扰的性能。最后,通过Simulink仿真与传统两级PI控制进行比较,结果表明了所提算法对STATCOM具有更好的内部控制性能。The problem of internal current control in Static Synchronous Compensator（STATCOM） is studied. A mathematical model of STATCOM is obtained, and the reference signal of the current is designed by using external voltage loop to get the tracking error model of STATCOM. Based on the direct feedback linearization and Lyapunov function method, an H∞ controller is designed, which can guarantee that the power system is stable. The proposed method can make the internal current track the reference signal very fast and has the performance of disturbance attenuation. Finally, a simulation example is given to show that the proposed control method has the better control performance for STATCOM compared with the conventional two-level PI controller.

关 键 词：STATCOM 跟踪控制 H∞控制器 内部电流 

分 类 号：TP29[自动化与计算机技术—检测技术与自动化装置]