UPFC的控制系統(tǒng)研究及實(shí)驗(yàn)

本文以改善UPFC 動(dòng)態(tài)性能為出發(fā)點(diǎn)，指出了UPFC 研究中存在的問題：1 目前針對(duì)UPFC 系統(tǒng)所建立的模型不完整，使得控制系統(tǒng)設(shè)計(jì)中存在缺陷；2 沒有一個(gè)有效、合理的潮流調(diào)節(jié)器參數(shù)設(shè)計(jì)方法，使得控制系統(tǒng)性能得不到很好的驗(yàn)證。結(jié)合UPFC 系統(tǒng)級(jí)和裝置級(jí)的模型分析，考慮了各變量之間的相互影響，構(gòu)建了一個(gè)更加完整的控制系統(tǒng)，改善了UPFC 系統(tǒng)動(dòng)態(tài)性能。另外，給出了利用頻率特性法，通過繪制系統(tǒng)Bode 圖來(lái)確潮流定調(diào)節(jié)器參數(shù)的方法。最后，在國(guó)內(nèi)首先對(duì)UPFC 的性能作了實(shí)驗(yàn)研究，得到了大量有效的實(shí)驗(yàn)結(jié)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.
關(guān)鍵詞：統(tǒng)一潮流控制器, 交叉耦合控制, 頻率特性法, 潮流調(diào)節(jié)
Keywords: Unified Power Flow Controller, Cross Coupling Control, Frequency Characteristic Method, Power Flow
control