开关磁阻电机系统电气故障诊断基础理论与关键技术研究

The fault diagnosis of stator windings in Switched Reluctance motor, the fault diagnosis of power converter and the fault diagnosis of rotor position detector will be researched by theoretical analysis, semi-physical non-linear simulation including software synchronized simulation, hardware synchronization and prototype experiments. On the basis of identification and induction of a variety of fault in Switched Reluctance motor drive, the fault characterization discipline of inter-phase short circuit of stator winding, short circuit of the coils to ground, open circuit of phase winding, short circuit of phase winding, short circuit of coil and inter-turn short circuit of a coil in the motor, the fault characterization discipline of short circuit of main switches, open circuit of main switches, short circuit of freewheeling diodes and open circuit of freewheeling diodes in the power converter, and the fault characterization discipline of single sensor failure, multiple sensors failure, abnormal output signals in the rotor position detector will be shown. The theoretical criterion of the faults will be obtained. The semi-physical non-linear simulation research platform and the hardware test platform will be established. The fault experimental prototype of stator windings including inter-phase short circuit of stator winding, short circuit of the coils to ground, open circuit of phase winding, short circuit of phase winding, short circuit of coil and inter-turn short circuit of a coil, the fault experimental prototype of power converter including short circuit of main switches, open circuit of main switches, short circuit of freewheeling diodes and open circuit of freewheeling diodes, and the fault experimental prototype of rotor position detector including sensors failure, abnormal output signals, will be developed. The quantitative relationship between the types of fault, the fault depth and the fault characteristic parameters will be grasped. The effective means of separation and extraction of fault feature will be determined. The fault diagnostic criteria and diagnostic methods will be proposed. The new fault diagnosis theories and methods will be proposed in order to diagnose and locate the faults of stator windings, the faults of power converter and the faults of rotor position detector, enhance the system reliability. The system structure and the control parameter will be optimized. More than ten high-quality papers will be published. Three or four Chinese invention patents will be applied. Three doctoral students and three master students will be trained. The expected achievements not only solve the basic theory issues of electrical fault diagnosis of Switched Reluctance motor drive, but also the theoretical innovation and innovation in key technologies will be achieved. It will be also with our own intellectual property rights. It will promote the application of switched reluctance motor drive in the fields of aerospace, coal mine and so on.

在确认和归纳开关磁阻电机多种故障基础上，将揭示开关磁阻电机定子绕组相间短路、对地短路、相绕组开路、相绕组短路、线圈短路及线圈匝间短路故障表征规律、功率变换器主开关管短路和开路及续流二极管短路和开路故障表征规律、转子位置检测器传感器失效和输出信号奇变故障表征规律，获得相应故障的理论判据，建立系统半实物非线性仿真研究平台和硬件试验研究平台，试制出定子绕组故障、功率变换器故障、转子位置检测器故障模拟试验样机，掌握故障类型、故障深度与故障特征参数的定量关系，确立故障特征量分离及提取有效手段，提出故障诊断判据和诊断方法。为其定子绕组故障、功率变换器故障、转子位置检测器故障诊断和定位，提高系统运行可靠性，提出新的故障诊断理论和方法。发表高质量学术论文10篇以上，申请中国发明专利3-4项，培养博士生3名、硕士生3名。其成果将具有我国自主知识产权，将促进开关磁阻电机系统在航空航天、煤矿井下等领域推广应用。

本项目发现了开关磁阻电机本体故障和功率变换器故障的相电流特征规律及位置传感器故障的数字信号特征规律，解决了非交流正弦、非直流、单极性供电电机、功率变换器和位置传感器故障诊断难题，提高了具有高度非线性特性、电机与功率变换器机电一体的开关磁阻电机系统可靠性，并实现了开关磁阻电机系统无转子位置传感器电动与发电运行和可靠性定量评估。在IEEE Trans. Power Electronics、Applied Superconductivity、Plasma Science及IET Electric Power Applications等国际期刊发表学术论文18篇、国内电工技术学报发表学术论文3篇，SCI已收录18篇、EI已收录19篇；美国专利授权2件、澳大利亚专利授权7件、丹麦专利授权1件、加拿大专利授权2件、南非专利授权2件；申请中国发明专利22件，已授权中国发明专利11件；培养博士研究生8名、硕士研究生11名。解决了开关磁阻电机系统电气故障诊断基础理论问题，实现了理论创新和关键技术创新，具有我国自主知识产权，将促进开关磁阻电机系统在航空航天、煤矿井下、新能源发电、电动车驱动等特殊环境专用领域推广应用。