电压变化对电励磁同步电动机的影响  

Influence of Voltage Variation on Electrically-Excited Synchronous Motors

作　　者：韩丹 Han Dan(Jiamusi Explosion-Proof Electric Machine Institute Co.,Ltd.,Jiamusi 154005,China)

机构地区：[1]佳木斯防爆电机研究所有限公司,黑龙江佳木斯154005

出　　处：《防爆电机》2022年第1期33-35,共3页Explosion-proof Electric Machine

摘　　要：根据供电电压变化,对于永磁同步电动机性能产生的影响进行探讨,分析供电电压的变化,对于其性能有可能产生的影响,进行综合性分析。最终研究结果表明,在起动时如果电流以及转距出现变化的情况,那么供电电压会不断的增加,但其增加的效果并不是非常明显。因此,我们需要起动时的电流以及电压进行严格的控制,避免电流和电压过大而对整个电网造成巨大的冲击,如果这一过程不能对相关的数据进行合理的控制,那么永磁体将会出现不可逆的去磁现象。如果供电电压能够长期处于稳定的状态,那么电压出现变化时,效率和功率因素会表现出反V形的曲线。This paper discusses the influence of supply voltage variation on PMSM performance,and comprehensively analyzes the possible influence of it.The final research results show that the supply voltage will increase continuously if the current and torque change when starting,but the effect of increasing is not very obvious.Therefore,we should strictly control the current and voltage when starting to avoid the huge impact of excessive current and voltage on the whole power grid.If the relevant data cannot be reasonably controlled in this process,the permanent magnets will have irreversible demagnetization.If the supply voltage can be kept stable for a long time,the efficiency and power factors will show an inverse V-shaped curve when voltage variation.

关 键 词：永磁同步电动机 供电电压 性能 

分 类 号：TM301.4[电气工程—电机]