大型核電機組涉網(wǎng)保護與電網(wǎng)安全自動裝置的協(xié)調(diào)控制原則
發(fā)布時間:2018-10-15 09:38
【摘要】:針對中國目前應(yīng)用最為廣泛的壓水堆核電機組,分析了核電機組涉網(wǎng)保護與電網(wǎng)安全運行的相互作用和影響,提出了核電機組涉網(wǎng)保護與電網(wǎng)安全自動裝置的協(xié)調(diào)控制原則。在全過程動態(tài)仿真程序已有的壓水堆核電機組模型基礎(chǔ)上,研究了電網(wǎng)電壓、頻率擾動引起的核電機組和電網(wǎng)的動態(tài)特性,著重分析了超速保護、過勵限制和保護、頻率異常保護、主泵保護等涉網(wǎng)保護和電網(wǎng)高頻切機、低頻減載等安全自動裝置的動作特性、相互影響及其協(xié)調(diào)關(guān)系。結(jié)合實際電網(wǎng)算例,驗證了相應(yīng)的協(xié)調(diào)配合原則,為核電廠及其所接入電網(wǎng)參數(shù)整定、定值優(yōu)化及協(xié)調(diào)控制等提供了參考。
[Abstract]:Aiming at the most widely used PWR nuclear power units in China at present, the interaction and influence between the network protection of nuclear power units and the safe operation of the power grid are analyzed, and the coordinated control principle between the network protection of nuclear power units and the power grid safety automatic devices is put forward. Based on the existing models of PWR nuclear power units, the dynamic characteristics of nuclear power units and power grids caused by voltage and frequency disturbances are studied, and the overspeed protection, over-excitation limitation and protection are emphatically analyzed. The action characteristics of the safety automatic devices such as frequency abnormal protection, main pump protection and power grid high frequency cutting machine, low frequency load reduction and so on. The corresponding coordination and coordination principle is verified with practical examples, which provides a reference for the parameter setting, optimization and coordination control of the power network connected to the nuclear power plant.
【作者單位】: 河海大學(xué)能源與電氣學(xué)院;中國電力科學(xué)研究院;國電九江發(fā)電廠;國網(wǎng)福建省電力有限公司;
【分類號】:TM623.8
[Abstract]:Aiming at the most widely used PWR nuclear power units in China at present, the interaction and influence between the network protection of nuclear power units and the safe operation of the power grid are analyzed, and the coordinated control principle between the network protection of nuclear power units and the power grid safety automatic devices is put forward. Based on the existing models of PWR nuclear power units, the dynamic characteristics of nuclear power units and power grids caused by voltage and frequency disturbances are studied, and the overspeed protection, over-excitation limitation and protection are emphatically analyzed. The action characteristics of the safety automatic devices such as frequency abnormal protection, main pump protection and power grid high frequency cutting machine, low frequency load reduction and so on. The corresponding coordination and coordination principle is verified with practical examples, which provides a reference for the parameter setting, optimization and coordination control of the power network connected to the nuclear power plant.
【作者單位】: 河海大學(xué)能源與電氣學(xué)院;中國電力科學(xué)研究院;國電九江發(fā)電廠;國網(wǎng)福建省電力有限公司;
【分類號】:TM623.8
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