摘要
首先介绍了高压直流输电(HVDC)系统的基本结构和工作原理,在此基础上将智能控制和传统PI控制技术相结合,从原理上分析,对换流器采用智能控制可以有效地提高交直流系统的动态特性和恒定性。采用Matlab对典型12脉冲桥高压直流输电系统模型分别在传统PI控制和模糊、神经智能控制下进行仿真。通过实时的仿真实验表明,与传统控制方法相比,智能控制可以有效地改善系统直流电流和直流电压的恒定性,提高系统暂态稳定性。因此具有更好的适应性和更强的鲁棒性。
First,it introduced the basic structure and working principle of the high-voltage DC transmission (HVDC) system. On this basis, it was combined intelligent control and PI control technology.From the principles of the analysis, it uses intelligent control can effectively improve the dynamic characteristics and constancy of AC and DC systems on the converter. Each in the traditional PI control and fuzzy, neural intelligent PI control, used Matlab on a typical 12-pulse HVDC transmission system model of the bridge to be simulated. Compared with the traditional control methods, the real-time simulation experiments show that: intelligent control can effectively improve the system DC current and DC voltage constant and system transient stability. Therefore, it has better adaptability and greater robustness.
出处
《电气技术》
2010年第4期10-14,共5页
Electrical Engineering
