【摘要】：利用電力系統(tǒng)實(shí)時(shí)數(shù)字仿真系統(tǒng)(real-time digital simulator,RTDS),研究并建立了全光纖電流互感器(fiber optical current transformer,FOCT)的實(shí)時(shí)動(dòng)態(tài)仿真模型。通過對(duì)FOCT檢測(cè)系統(tǒng)中偏差與反饋2部分的合理簡(jiǎn)化,建立了等效的數(shù)字閉環(huán)控制系統(tǒng)模型;根據(jù)不同溫度下,光纖Verdet常數(shù)和l/4波片相位延遲的變化規(guī)律,以及探測(cè)器接收光強(qiáng)關(guān)于l/4波片參數(shù)的數(shù)學(xué)模型,將可變的溫度參數(shù)引入到了模型中。通過仿真試驗(yàn),找到了能夠補(bǔ)償溫度誤差的l/4波片初始相位延遲角的范圍,證明了所建FOCT實(shí)時(shí)動(dòng)態(tài)仿真模型是合理的,能夠有效模擬FOCT的穩(wěn)態(tài)溫度特性,且暫態(tài)特性良好,可用于對(duì)FOCT性能的深入研究及智能變電站相關(guān)設(shè)備的測(cè)試。
[Abstract]:Using the power system real-time digital simulation system (real-time digital simulator,RTDS), the real-time dynamic simulation model of all-fiber current transformer (fiber optical current transformer,FOCT) is studied and established. The equivalent digital closed-loop control system model is established by reasonably simplifying the deviation and feedback in FOCT detection system. According to the variation rule of fiber Verdet constant and phase delay of 1 / 4 wave plate at different temperatures and the mathematical model of the detector receiving light intensity about the parameters of l / 4 wave plate, the variable temperature parameters are introduced into the model. The range of initial phase delay angle of 1 / 4 wave plate which can compensate for temperature error is found through simulation experiments. It is proved that the FOCT real-time dynamic simulation model is reasonable and can effectively simulate the steady-state temperature characteristics of FOCT, and the transient characteristics are good. It can be used to study the performance of FOCT and test related equipment in intelligent substation.
【作者單位】： 新能源電力系統(tǒng)國(guó)家重點(diǎn)實(shí)驗(yàn)室(華北電力大學(xué));國(guó)網(wǎng)吉林省電力有限公司吉林供電公司;
【分類號(hào)】：TM452

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本文編號(hào)：2395794