The single phase permanent magnet synchronous motor, which is of a simpler structure than that of the brushless DC motor, can self-start when sinusoidal voltage is supplied. Therefore, it has a higher efficiency than single phase induction machine.
单相自起动永磁同步电动机在接通单相工频交流电源后不需要任何控制装置就能够实现自起动,在结构上比无刷直流电机等永磁电机要简单;而与同容量的单相异步电动机相比,其效率却能提高。
参考来源 - 单相自起动永磁同步电机电磁分析·2,447,543篇论文数据，部分数据来源于NoteExpress
Higher inlet propellant pressure is helpful for self-start engine.
对于自身启动发动机，较高的入口压力有利于发动机启动。
Many of my friends in their 20s and 30s have to self-start their retirement accounts because their employer no longer offers pension options.
我的很多朋友在他们20多岁、30多岁时不得不自己建立退休金账户，因为他们的雇主不再提供养老金。
Under the condition of total or partial power net breakdown, system recovery can be realized by black-start scheme, in which units with self-start ability are used to bring others to start up.
电网全部或部分因故障停运后，采用黑启动方案，通过系统中具有自启动能力的机组带动无自启动能力的机组，可实现整个电网的恢复。
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