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

【摘要】：負荷模型對電力系統(tǒng)穩(wěn)定計算結果有著重要的影響,而感應電動機群聚合是負荷等值建模的重要組成部分�？紤]感應電動機靜態(tài)臨界穩(wěn)定特性的影響,提出了一種感應電動機群負荷聚合等值的新方法。首先,分析了表征電動機靜態(tài)臨界穩(wěn)定特性強弱的指標,據(jù)此將電動機群負荷分為穩(wěn)定性好和穩(wěn)定性差的2組。而后,基于各電動機的物理機理,并綜合考慮其靜態(tài)臨界穩(wěn)定特性,對分組后的感應電動機群負荷進行聚合。最后,以單機無窮大系統(tǒng)、WSCC-9節(jié)點系統(tǒng)和EPRI-36節(jié)點系統(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,驗證了所提方法在不同運行條件下的適用性和所得等值模型的準確性。
[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】： 浙江大學電氣工程學院;國網(wǎng)浙江省電力公司杭州供電公司;浙江電力調度通信中心;
【基金】：國家自然科學基金資助項目(51377143) 國家電網(wǎng)公司科技項目(基于智能測量終端量測數(shù)據(jù)的負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