航空多级式无刷同步起动发电机联合模型研究  

Research on United Model of Aviation Multi-stage Brushless Synchronous Starter-generator

作　　者：李子洁 焦宁飞[1] 姚普 韩旭[1] 段晓丽 Li Zijie;Jiao Ningfei;Yao Pu;Han Xu;Duan Xiaoli(Northwestern Polytechnical University,Xi’an 710072,China;Aviation Key Laboratory of Science and Technology on Aerospace Power System,Xi’an 710065,China)

机构地区：[1]西北工业大学,陕西西安710072 [2]航空电力系统航空科技重点实验室,陕西西安710065

出　　处：《航空科学技术》2023年第10期84-91,共8页Aeronautical Science & Technology

基　　金：航空科学基金(20184053027);国家自然科学基金(52177058)。

摘　　要：建立准确的电机模型是深入研究航空多级式无刷同步起动发电机的基础。多级式无刷同步起动发电机的带载起动控制和发电调压控制主要由励磁机、旋转整流器和主电机组成的两级式系统实现。单一的对励磁机或主电机进行建模分析无法反映出二者的耦合关系,需要建立囊括励磁机、旋转整流器和主电机的两级式起动发电机联合模型。为了优化系统稳态和瞬态运行状态下电机模型精度,本文考虑磁场饱和以及主电机阻尼绕组因素影响,建立了一种基于VBR模型的同时考虑凸极因子变化和阻尼绕组影响的多级式起动发电机联合模型。通过与有限元模型的对比分析表明,所建模型提高了系统在稳态和瞬态过程中的仿真精度,验证了模型的有效性,对深入进行航空多级式无刷同步起动发电机的仿真分析具有重要意义。The accurate model of multi-stage Brushless Synchronous Starter-Generator(BSSG)is necessary for the detailed analysis and advanced control research.The load starting control and voltage regulation control of the multistage BSSG are mainly achieved by a two-stage system composed of a Brushless Exciter(BE),a Rotating Rectifier(RR),and a Main Machine(MM).However,separated modeling of BE or MM cannot reflect the coupling relationship,so it is necessary to establish a united model of the two-stage BSSG including BE,RR and MM.In order to optimize machine's model accuracy under steady-state and transient operating conditions,this paper considered the influence on magnetic saturation and damping windings of MM,and a united model of multi-stage BSSG system based on VBR model and the influence on the saliency factor change and damping windings was proposed.The simulation comparative analysis with the finite element model shows that the proposed model improves the simulation accuracy of the system in both steady-state and transient processes,and verifies the effectiveness of the model,which is of great significance to conduct in-depth simulation analysis on aviation multi-stage BSSG.

关 键 词：多级式电机 VBR模型 阻尼绕组 磁场饱和 凸极因子 

分 类 号：V242.2[航空宇航科学与技术—飞行器设计]