中国电机工程学报
中國電機工程學報
중국전궤공정학보
ZHONGGUO DIANJI GONGCHENG XUEBAO
2015年
9期
2295-2303
,共9页
无轴承开关磁阻发电机%全周期发电%双定子%解耦%双通道
無軸承開關磁阻髮電機%全週期髮電%雙定子%解耦%雙通道
무축승개관자조발전궤%전주기발전%쌍정자%해우%쌍통도
bearingless switched reluctance generator (BSRG)%full-period generating%double-stator%decoupling%dual-channel
针对传统磁悬浮开关磁阻发电机中发电绕组与径向力绕组以及径向力绕组之间存在非线性强耦合的问题，该文研究一种新型的双定子磁悬浮开关磁阻双通道全周期发电机。该电机采用内–外双定子结构，内定子悬浮极上设置悬浮力绕组，外定子发电极上设置激励和发电绕组。在结合电机结构说明悬浮和全周期发电原理的基础上，利用磁通分布以及绕组磁链的有限元计算结果分析了悬浮与发电绕组之间以及悬浮力绕组之间的耦合程度，建立了系统的数学模型和运行策略。该发电机的悬浮极和发电极均可双通道运行，二者具有独立磁路，且悬浮力不受转子位置角影响，可连续发电并提高供电可靠性。有限元及实验结果验证了所提方案的正确性和有效性。
針對傳統磁懸浮開關磁阻髮電機中髮電繞組與徑嚮力繞組以及徑嚮力繞組之間存在非線性彊耦閤的問題，該文研究一種新型的雙定子磁懸浮開關磁阻雙通道全週期髮電機。該電機採用內–外雙定子結構，內定子懸浮極上設置懸浮力繞組，外定子髮電極上設置激勵和髮電繞組。在結閤電機結構說明懸浮和全週期髮電原理的基礎上，利用磁通分佈以及繞組磁鏈的有限元計算結果分析瞭懸浮與髮電繞組之間以及懸浮力繞組之間的耦閤程度，建立瞭繫統的數學模型和運行策略。該髮電機的懸浮極和髮電極均可雙通道運行，二者具有獨立磁路，且懸浮力不受轉子位置角影響，可連續髮電併提高供電可靠性。有限元及實驗結果驗證瞭所提方案的正確性和有效性。
침대전통자현부개관자조발전궤중발전요조여경향력요조이급경향력요조지간존재비선성강우합적문제，해문연구일충신형적쌍정자자현부개관자조쌍통도전주기발전궤。해전궤채용내–외쌍정자결구，내정자현부겁상설치현부력요조，외정자발전겁상설치격려화발전요조。재결합전궤결구설명현부화전주기발전원리적기출상，이용자통분포이급요조자련적유한원계산결과분석료현부여발전요조지간이급현부력요조지간적우합정도，건립료계통적수학모형화운행책략。해발전궤적현부겁화발전겁균가쌍통도운행，이자구유독립자로，차현부력불수전자위치각영향，가련속발전병제고공전가고성。유한원급실험결과험증료소제방안적정학성화유효성。
ABSTRACT:In order to conquer the serious nonlinear coupling problem among the generating windings and the two-freedom radial-force windings in traditional bearingless switched reluctance generators (BSRGs), a novel double-stator type bearingless switched reluctance dual-channel generator (DSBSRG) was proposed in this paper. This DSBSRG consists of two stators which we defined as the inner stator and the outer stator. The radial force windings are placed on the suspending poles of the inner stator, while the exciting windings and the generating windings are placed on the generating poles of the outer stator. After the basic structure characteristics of this DSBSRG was illustrated, its rotor suspending and full-period generating principles were described. Then the finite element method (FEM) analysis results of magnetic flux distribution and winding flux linkage were utilized to research the coupling extent among the generating winding and the two-freedom radial-force winding, to deduce the mathematical model, and to design the running strategy for the DSBSRG system. In this DSBSRG, the generating subsystem can realize the full-period generating function with high stability; the suspending poles and the generating poles have separate magnetic flux distribution paths, and can both operate in the dual-channel; and the radial force can be controlled without the affection of the rotor position angle. And FEM and experimental results validated this proposed method.
