综合电力用复杂多相感应推进系统缺相在线切换容错控制关键技术研究

Taking the complex multiphase induction propulsion system as the object which namely the "heart" of vessel integrated power system, in order to meet its need to maintain the power output of rigid demand under open-phase fault condition, this project proposes a solution for online fault tolerant control switch. Thus, this project intends to carry out some research works which include: (1) for multiphase induction machine, suitable for both normal and open-phase transient mathematical model is established to reveal open-phase fault transient transition process running mechanism. (2) This paper is proposed to analyze all kinds of open-phase fault conditions caused by the damage of motor or inverter. (3) In combination with the aforementioned multiphase induction motor mathematical model and the open-phase information, a solution to the fault-tolerant control of online switching is formed.. Preliminary analysis shows that the project is feasible to obtain online switch fault-tolerant control. It may solve the problem that complex multiphase induction electric propulsion system damage may cause any open-phase of online fault tolerant control switch, and still maintains a stable power output. This is of great significance to enhance the vitality of vessel integrated power system and improve its reliability under extreme environment.

以舰船综合电力系统的“心脏”，即复杂多相感应电力推进系统为对象，为满足其缺相故障条件下仍可维持动力输出的严苛需求，本项目提出在线切换容错控制的解决方案。为此，本项目拟开展的研究工作包括：①针对多相感应电机，建立适用于正常与缺相的瞬态数学模型，揭示缺相故障瞬态过渡过程运行机理。②对电机或变频器受损可能引发的各类缺相故障工况进行遍历分析，提出一种检测率高、耗时短的在线检测方法。③结合前述多相感应电机数学模型和缺相状态信息，形成在线切换容错控制的解决方案。. 初步分析表明，本项目拟获得的在线切换容错控制的解决方案具有可行性，有望解决复杂多相感应电力推进系统受损引发缺任意相的在线切换容错控制，并维持动力平稳输出的难题。这对于提升舰船综合电力系统的生命力，提高其极端环境下的可靠性，有着极为重要的意义。

本项目以解决复杂多相感应电力推进系统受损引发缺相故障的在线切换容错控制并维持动力输出的难题为目标，先后完成了电力推进系统缺相故障在线检测方法研究、多相感应电机缺相故障瞬态过渡过程运行机理研究、多相感应电机通用缺相容错控制方法研究三项研究内容，形成了完善的缺相在线检测及其切换容错控制策略，可满足舰船综合电力推进系统对缺相故障的自动检测、快速隔离和切换容错控制的强烈需求。