燃气涡轮试验与研究
燃氣渦輪試驗與研究
연기와륜시험여연구
Gas Turbine Experiment and Research
2015年
2期
20-25
,共6页
多电发动机%主动磁轴承%PID控制%模拟转子%转子动力学%临界转速%稳定性
多電髮動機%主動磁軸承%PID控製%模擬轉子%轉子動力學%臨界轉速%穩定性
다전발동궤%주동자축승%PID공제%모의전자%전자동역학%림계전속%은정성
more-electric engine%active magnetic bearing%PID control%simulated rotor%rotor dynamics%critical speed%stability
磁轴承转子动力学特性是磁轴承与转子动力学综合作用的结果，其好坏不仅决定稳定悬浮能否实现，而且还直接影响其动态性能和转子的回转精度。对基于PID控制的主动径向磁轴承的刚度和阻尼特性进行了深入研究，在此基础上，针对五自由度的多电模拟发动机转子进行临界转速、稳定性分析，得到各阶临界转速及稳定与否的判定方法，并分析了轴承主导型临界转速和转子主导型临界转速的不同特性。研究结果能为多电发动机整机减振设计提供技术支持。
磁軸承轉子動力學特性是磁軸承與轉子動力學綜閤作用的結果，其好壞不僅決定穩定懸浮能否實現，而且還直接影響其動態性能和轉子的迴轉精度。對基于PID控製的主動徑嚮磁軸承的剛度和阻尼特性進行瞭深入研究，在此基礎上，針對五自由度的多電模擬髮動機轉子進行臨界轉速、穩定性分析，得到各階臨界轉速及穩定與否的判定方法，併分析瞭軸承主導型臨界轉速和轉子主導型臨界轉速的不同特性。研究結果能為多電髮動機整機減振設計提供技術支持。
자축승전자동역학특성시자축승여전자동역학종합작용적결과，기호배불부결정은정현부능부실현，이차환직접영향기동태성능화전자적회전정도。대기우PID공제적주동경향자축승적강도화조니특성진행료심입연구，재차기출상，침대오자유도적다전모의발동궤전자진행림계전속、은정성분석，득도각계림계전속급은정여부적판정방법，병분석료축승주도형림계전속화전자주도형림계전속적불동특성。연구결과능위다전발동궤정궤감진설계제공기술지지。
The characteristics of magnetic bearing rotor dynamics are the interaction results of magnetic suspension characteristics and rotor dynamics. Its design level not only determines the achievement of mag?netic suspension, but also influences the dynamic characteristics and the precision of the rotor. The stiffness and damping characteristics of radical active magnetic bearing (AMB) based on PID control was investigat?ed. The critic speed and stability of a five DOFs more-electrical engine was analyzed. Based on the analyz?ing results, the critical speed and stability criterion of each degree were obtained. At last, the different char?acteristics of bearing-dominated critical speed and rotor-dominated critical speed were researched. The re?searching results will offer technical supports for the damping design of more-electrical engine.
