基于形態(tài)學(xué)骨架的變壓器差動(dòng)保護(hù)
[Abstract]:Improving the performance of transformer differential protection has been paid more attention for a long time. A new scheme of transformer differential protection based on morphological skeleton is proposed in this paper. The scheme consists of two parts, which are used to calculate the morphological skeleton of differential current waveform in two different adaptive data windows, respectively. The internal faults and disturbances (inrush current, external fault) are identified according to the different characteristics of the skeleton. The first part is devoted to the fast identification of most internal faults and disturbances, while the second part acts as the backup of the first part in some special cases to ensure the accuracy of fault identification. The rapidity and reliability of the scheme are verified by PSCAD/EMTDC simulation and dynamic model experiment.
【作者單位】: 華南理工大學(xué)電力學(xué)院;
【基金】:廣東省引進(jìn)創(chuàng)新科研團(tuán)隊(duì)項(xiàng)目(201001N0104744201) 國(guó)家自然科學(xué)基金青年科學(xué)基金資助項(xiàng)目(51607072) 中央高;究蒲袠I(yè)務(wù)費(fèi)面上項(xiàng)目(2015ZM113)~~
【分類號(hào)】:TM774
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