本文選題：感應(yīng)電動機(jī)群聚合 + 靜態(tài)臨界穩(wěn)定特性��； 參考：《電網(wǎng)技術(shù)》2017年09期

【摘要】：負(fù)荷模型對電力系統(tǒng)穩(wěn)定計(jì)算結(jié)果有著重要的影響,而感應(yīng)電動機(jī)群聚合是負(fù)荷等值建模的重要組成部分�？紤]感應(yīng)電動機(jī)靜態(tài)臨界穩(wěn)定特性的影響,提出了一種感應(yīng)電動機(jī)群負(fù)荷聚合等值的新方法。首先,分析了表征電動機(jī)靜態(tài)臨界穩(wěn)定特性強(qiáng)弱的指標(biāo),據(jù)此將電動機(jī)群負(fù)荷分為穩(wěn)定性好和穩(wěn)定性差的2組。而后,基于各電動機(jī)的物理機(jī)理,并綜合考慮其靜態(tài)臨界穩(wěn)定特性,對分組后的感應(yīng)電動機(jī)群負(fù)荷進(jìn)行聚合。最后,以單機(jī)無窮大系統(tǒng)、WSCC-9節(jié)點(diǎn)系統(tǒng)和EPRI-36節(jié)點(diǎn)系統(tǒng)為算例,考察了該聚合方法與其他方法所得等值模型在不同故障方式下的系統(tǒng)響應(yīng),驗(yàn)證了所提方法在不同運(yùn)行條件下的適用性和所得等值模型的準(zhǔn)確性。
[Abstract]:Load model plays an important role in power system stability calculation, and induction motor cluster aggregation is an important part of load equivalence modeling.Considering the influence of static critical stability of induction motor, a new method of group load aggregation equivalent of induction motor is proposed.Firstly, the index of the static critical stability characteristic of the motor is analyzed, according to which the motor group load is divided into two groups which have good stability and poor stability.Then, based on the physical mechanism of each motor and considering its static critical stability, the group load of induction motor after grouping is aggregated.Finally, taking the single-machine infinite bus system WSCC-9-bus system and the EPRI-36 node system as examples, the system responses of the aggregation method and the equivalent model obtained by other methods under different fault modes are investigated.The applicability of the proposed method under different operating conditions and the accuracy of the obtained equivalent model are verified.
【作者單位】： 浙江大學(xué)電氣工程學(xué)院;國網(wǎng)浙江省電力公司杭州供電公司;浙江電力調(diào)度通信中心;
【基金】：國家自然科學(xué)基金資助項(xiàng)目(51377143) 國家電網(wǎng)公司科技項(xiàng)目(基于智能測量終端量測數(shù)據(jù)的負(fù)荷特性分析及建模方法研究(52110415000B)~~
【分類號】：TM346
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本文編號：1736696