發(fā)布時間：2018-02-16 12:47

  本文關鍵詞： 抽水蓄能電機 場路耦合 時步有限元 瞬態(tài)參數(shù) 凍結(jié)磁導率法　出處：《電工技術學報》2015年01期 　論文類型：期刊論文

【摘要】：為準確計算抽水蓄能電機分別運行于發(fā)電及電動工況時的瞬態(tài)參數(shù),本文基于單元電機建立了抽水蓄能電機的場路耦合時步有限元模型。采用包絡線法得到空載突然三相短路時電機的瞬態(tài)參數(shù)(簡稱包絡線法),同時用凍結(jié)磁導率法得到空載突然三相短路時定轉(zhuǎn)子繞組漏抗及電樞反應電抗,由各瞬態(tài)參數(shù)定義式得到瞬態(tài)參數(shù)(簡稱凍結(jié)磁導率法)。將凍結(jié)磁導率法計算值與設計值分別代入短路電流解析式中得到短路電流波形,與時步有限元仿真波形相比,凍結(jié)磁導率法計算波形與之更為接近。將這兩種瞬態(tài)參數(shù)計算方法應用于實驗室6極反裝水輪發(fā)電機,與實驗結(jié)果對比驗證了兩種計算方法的有效性和可行性。
[Abstract]:In order to calculate the transient parameters of pumped storage motor (Pumped-storage motor), In this paper, a field-circuit coupled time-step finite element model of pumped-storage motor is established based on the unit motor. The transient parameters of the motor are obtained by using the envelope method, and the frozen permeability is also used to obtain the transient parameters of the motor in the case of a sudden three-phase short circuit with no load (abbreviated as the envelope method). The leakage reactance and armature reaction reactance of stator rotor winding and armature reaction are obtained by the method of no-load and sudden three-phase short circuit. The transient parameters are obtained from the definition of each transient parameter (the frozen permeability method for short). The calculation value of the frozen permeability method and the design value are respectively substituted in the short-circuit current analytical formula to obtain the short-circuit current waveform, which is compared with the time-step finite element simulation waveform. The calculation waveform of frozen permeability method is more close to it. The two transient parameter calculation methods are applied to the 6-pole reverse hydrogenerator in laboratory. The comparison with the experimental results shows the validity and feasibility of the two calculation methods.
【作者單位】： 華北電力大學電氣與電子工程學院;哈爾濱大電機研究所;
【基金】：國家科技支撐計劃資助項目(2011BAF03B02)
【分類號】：TV743;TV34

【參考文獻】

相關期刊論文 前8條

1 梁艷萍,湯蘊t，

本文編號：1515554