本文關(guān)鍵詞： 金屬氧化物避雷器動(dòng)態(tài)模型 非線性電阻模型 吸收能量 殘壓 沖擊電流　出處：《中國(guó)電機(jī)工程學(xué)報(bào)》2017年10期 　論文類型：期刊論文

【摘要】：為研究金屬氧化物避雷器(metal-oxide arrester,MOA)仿真模型在估計(jì)殘壓的同時(shí)能否準(zhǔn)確估算MOA的吸收能量,該文采用非線性電阻模型和3種常用的MOA動(dòng)態(tài)模型,即IEEE模型、Pinceti模型和Fernandez模型,估算不同用途的MOA限壓元件 金屬氧化物壓敏電阻(metal-oxide varistors,MOV)在8/20μs標(biāo)準(zhǔn)雷電波、30/60μs操作波和波頭時(shí)間約1μs的陡波沖擊電流下的殘壓和吸收能量,并和試驗(yàn)測(cè)量結(jié)果對(duì)比分析。結(jié)果表明,IEEE模型能準(zhǔn)確估計(jì)低壓浪涌保護(hù)器用MOV的殘壓,而Pinceti模型只在8/20μs電流下較準(zhǔn)確。估算輸配電線路避雷器用MOV的吸收能量時(shí),只有非線性電阻和Fernandez模型在8/20μs電流下有較高的準(zhǔn)確性;而估算低壓MOV的吸收能量時(shí),非線性電阻模型比動(dòng)態(tài)模型準(zhǔn)確。因此可以得出,高、低壓MOV的殘壓預(yù)測(cè)均可用IEEE模型;估算低壓MOV的吸收能量可用非線性電阻模型;而估算高壓MOV的吸收能量時(shí),建議對(duì)動(dòng)態(tài)模型的兩個(gè)非線性元件A0和A1的參數(shù)做進(jìn)一步優(yōu)化和調(diào)整。
[Abstract]:In order to study whether the metal oxide arrester MOA (metal oxide arrester MOA) simulation model can accurately estimate the absorption energy of MOA while estimating the residual voltage, the nonlinear resistor model and three commonly used MOA dynamic models, IEEE model, Pinceti model and Fernandez model, are used in this paper. The residual voltage and absorption energy of metal-oxide varistors (MOVs) for different uses of MOA voltage limiting elements are estimated at 8/20 渭 s standard lightning wave at 30 / 60 渭 s operating wave and wave head time of about 1 渭 s. The results show that the residual voltage of MOV for low-voltage surge protectors can be accurately estimated by the MOV model, while the Pinceti model is only accurate at 8/20 渭 s current. When estimating the absorbed energy of the MOV used in surge arresters for transmission and distribution lines, the results show that the model can accurately estimate the residual voltage of the MOV used in the low-voltage surge protectors. Only the nonlinear resistor and Fernandez model have higher accuracy at 8/20 渭 s current, while the nonlinear resistance model is more accurate than the dynamic model in estimating the absorption energy of low voltage MOV. Therefore, it can be concluded that the residual pressure prediction of high and low voltage MOV can be predicted by IEEE model. The absorption energy of low-voltage MOV can be estimated by nonlinear resistance model, and the parameters of two nonlinear elements A _ 0 and A _ 1 of the dynamic model should be further optimized and adjusted when estimating the absorption energy of high-voltage MOV.
【作者單位】： 電力傳輸與功率變換控制教育部重點(diǎn)實(shí)驗(yàn)室(上海交通大學(xué));國(guó)網(wǎng)上海市電力公司電力科學(xué)研究院;
【分類號(hào)】：TM862
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本文編號(hào)：1511407