西南交通大学学报
西南交通大學學報
서남교통대학학보
JOURNAL OF SOUTHWEST JIAOTONG UNIVERSITY
2015年
3期
405-409
,共5页
王建良%李进泽%吴冰%张奕黄
王建良%李進澤%吳冰%張奕黃
왕건량%리진택%오빙%장혁황
双馈风力发电机%转子绕组%虚槽%短距绕组%槽漏感
雙饋風力髮電機%轉子繞組%虛槽%短距繞組%槽漏感
쌍궤풍력발전궤%전자요조%허조%단거요조%조루감
DFIG (doubly-fed induction generator)%rotor winding%virtual slot%short-pitch winding%slot leakage inductance
为了计算虚槽短距转子绕组的槽漏感,依据虚槽短距波绕组结构原理,分析了一个相带绕组在发动机转子槽内的分布情况。在此基础上应用导线间的自感及互感特性,采用微分算法研究了虚槽短距转子绕组槽内的漏磁链的分布,推导了虚槽奇数槽短距及虚槽偶数槽短距绕组的槽漏感计算方法。通过实例验证了该方法的正确性。计算结果表明:采用虚槽结构的槽漏感无论是虚槽偶数短距还是虚槽奇数短距在其节距相近时漏感值接近;采用等效实槽的转子槽漏感为虚槽漏感的2倍。
為瞭計算虛槽短距轉子繞組的槽漏感,依據虛槽短距波繞組結構原理,分析瞭一箇相帶繞組在髮動機轉子槽內的分佈情況。在此基礎上應用導線間的自感及互感特性,採用微分算法研究瞭虛槽短距轉子繞組槽內的漏磁鏈的分佈,推導瞭虛槽奇數槽短距及虛槽偶數槽短距繞組的槽漏感計算方法。通過實例驗證瞭該方法的正確性。計算結果錶明:採用虛槽結構的槽漏感無論是虛槽偶數短距還是虛槽奇數短距在其節距相近時漏感值接近;採用等效實槽的轉子槽漏感為虛槽漏感的2倍。
위료계산허조단거전자요조적조루감,의거허조단거파요조결구원리,분석료일개상대요조재발동궤전자조내적분포정황。재차기출상응용도선간적자감급호감특성,채용미분산법연구료허조단거전자요조조내적루자련적분포,추도료허조기수조단거급허조우수조단거요조적조루감계산방법。통과실례험증료해방법적정학성。계산결과표명:채용허조결구적조루감무론시허조우수단거환시허조기수단거재기절거상근시루감치접근;채용등효실조적전자조루감위허조루감적2배。
In order to calculate the slot leakage inductance of the virtual-slot short-pitch rotor winding in a doubly-fed induction generator (DFIG),the arrangement of a phase belt winding in the generator slot was studied from the structural principle of the virtual-slot short-pitch wave winding. Further, according to the self-induction and mutual-induction characteristics of conductors,the distribution of leakage flux linkage in the virtual slot of the short-pitch winding for rotor was derived by differential algorithm. Then,a calculation method was developed for slot leakage inductance of short-pitch windings with an odd and even number of virtual-slots,and its validity was verified through a case study. The results show that for the virtual-slot short-pitch winding,whether the number of virtual slots in the short-pitch windings is odd or even,the leakage inductance value is approximately the same. For the rotor using equivalent real slots,however,the leakage inductance is nearly twice that using virtual slots.