UPFC的控制系统研究及实验

本文以改善UPFC 动态性能为出发点，指出了UPFC 研究中存在的问题：1 目前针对UPFC 系统所建立的模型不完整，使得控制系统设计中存在缺陷；2 没有一个有效、合理的潮流调节器参数设计方法，使得控制系统性能得不到很好的验证。结合UPFC 系统级和装置级的模型分析，考虑了各变量之间的相互影响，构建了一个更加完整的控制系统，改善了UPFC 系统动态性能。另外，给出了利用频率特性法，通过绘制系统Bode 图来确潮流定调节器参数的方法。最后，在国内首先对UPFC 的性能作了实验研究，得到了大量有效的实验结果。
Abstract: Base on improving the dynamic performance of UPFC, this paper points out the following two problems in the present study on UPFC. (1) The model of UPFC is not integrated so as to have flaws in control system design of UPFC.(2) There is no effective and reasonable method to deign the parameter of the power flow controller. So the control system
characteristic of UPFC is not tested well. Combining the UPFC system model and UPFC device model, this paper considers
interaction among different variables and proposes a more integrated control system of UPFC. The frequency characteristic
method is presented and the reasonable parament of power flow controller is obtained with the system Bode plot. As a result, the dynamic system performance of UPFC is improved. Experimental results based on a 15kVA experimental system show the above control system provides satisfactory performance.
关键词：统一潮流控制器, 交叉耦合控制, 频率特性法, 潮流调节
Keywords: Unified Power Flow Controller, Cross Coupling Control, Frequency Characteristic Method, Power Flow
control