CAJ | 학술논문

多电飞机、全电飞机的快速发展以及机载用电设备的不断增加，对电源系统提出了更高的要求。在传统的三级式同步电机的基础上提出的两级式混合励磁同步电机，在实现无刷化励磁的同时，兼顾了永磁电机的高功率密度和电励磁电机磁场可调的优点，在机载电源系统中应用前景广阔。基于一台用于两级式起动/发电电源系统的切向/径向磁路并联结构混合励磁同步电机，针对在转子静止时采用直流励磁方式主发电机无法获得励磁电流的问题，经过理论推导和实际测试总结出一种起动励磁控制策略，结合空间矢量算法，有效提高了起动过程的响应速度和带载能力，分别通过仿真和实验证明了该方案的正确性和可行性。
다전비궤、전전비궤적쾌속발전이급궤재용전설비적불단증가，대전원계통제출료경고적요구。재전통적삼급식동보전궤적기출상제출적량급식혼합려자동보전궤，재실현무쇄화려자적동시，겸고료영자전궤적고공솔밀도화전려자전궤자장가조적우점，재궤재전원계통중응용전경엄활。기우일태용우량급식기동/발전전원계통적절향/경향자로병련결구혼합려자동보전궤，침대재전자정지시채용직류려자방식주발전궤무법획득려자전류적문제，경과이론추도화실제측시총결출일충기동려자공제책략，결합공간시량산법，유효제고료기동과정적향응속도화대재능력，분별통과방진화실험증명료해방안적정학성화가행성。
The fast development of more electric aircrafts (MEA) and all electric aircrafts (AEA) and the rapid increase of airborne electrical equipments both demand a high-performance aircraft power system. Based on the traditional three stage starter-generator system, a type of two stage starter-generator is proposed, which adopts the brushless structure and combines the metrics of high power density and adjustable magnetic fields at the same time. So, it can be used in independent power supply system extensively. In this paper, a tangential/radial hybrid excitation synchronous machine (T/R-HESM) is used in the two stage starter-generator system. Through theoretical deduction and practical tests, a new start excitation strategy is put forward to solve the problem that the main generator cannot get the dc exciting current when rotor is static. Combining with space vector pulse width modulation (SVPWM) algorithm, the start process response speed and loading capacity are increased respectively. Both simulation and experiment results prove the validity and feasibility of the strategy.