CAJ | 학술논문

转子位置检测是影响无刷直流电机可靠性的关键因素之一。根据无刷电机转子位置传感器的冗余配置准则，提出一种基于霍尔元件和旋转变压器的非相似余度检测方案。详细分析了这两类传感器的输出与无刷电机的最佳换相逻辑关系，通过对传感器工作特点的讨论分别给出各传感器的故障判别准则，并基于传感器输出信息设计了“角度互检控＋电平比对”的两级容错管理策略，最后通过可靠性建模与预测得到系统的可靠度达0．9969，比由两组霍尔元件构成的相似余度可靠度高31．47％。实验结果证明了余度方案及其容错策略的有效性。
전자위치검측시영향무쇄직류전궤가고성적관건인소지일。근거무쇄전궤전자위치전감기적용여배치준칙，제출일충기우곽이원건화선전변압기적비상사여도검측방안。상세분석료저량류전감기적수출여무쇄전궤적최가환상라집관계，통과대전감기공작특점적토론분별급출각전감기적고장판별준칙，병기우전감기수출신식설계료“각도호검공＋전평비대”적량급용착관리책략，최후통과가고성건모여예측득도계통적가고도체0．9969，비유량조곽이원건구성적상사여도가고도고31．47％。실험결과증명료여도방안급기용착책략적유효성。
Detection of rotor position is one of the key factors that affect the reliability of BLDC motors.According to the guide lines for redundant configuration of rotor position sensor of the brushless motor,this paper presents a dissimilar redundancy scheme using Hall elements and resolver.It analyzes the logical relationship between the output of these two types of sensors and the optimal phase change,and presents fault judgment criteria for different sensors after a discussion on their operational characteristics.Furthermore, a 2-stage error tolerance management strategy (mutual angle detection +level comparison)is designed on the basis of the output information of the sensor.Finally,system reliability of 0.996 9 is achieved through reliability modeling and prediction,higher than that of the similar redundancy of two groups of Hall elements by 3 1 .47%.The experimental results prove the effectiveness of this redundancy scheme and error tolerance strategy.