Study of Core Design and Ventilation Distribution of Circulating Pump Motor in Nuclear Power Plant

doi:10.11985/2019.02.013

Abstract

Abstract:

The core of seawater circulating pump motor in the nuclear power plant is responsible for providing the path for the establishment magnetic flux, core design needs to consider magnetic density, heat load, ventilation and other factors. The core temperature rise is lower than the limit under the condition that the magnetic saturation of each core part does not occur. The magnetic circuit calculation, ventilation calculation and core development are introduced, and the iron loss test of stator core is carried out, It accumulates experience for nuclear power plant large cycle pump motor core design manufacture and test.

Key words: Circulating pump motor, core design, equivalent network, ventilation vent, iron loss test

CLC Number:

TL353

WANG Weiguang,FU Song,WANG Zeyu,LI Yang,QIN Guangyu,LIANG Yanping. Study of Core Design and Ventilation Distribution of Circulating Pump Motor in Nuclear Power Plant[J]. Journal of Electrical Engineering, 2019, 14(2): 71-78.

Figures/Tables 24

References 24

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序号	项目	设计值
1	定子外径/mm	?4050
2	定子内径/mm	?3650
3	定子铁心长/mm	1200
4	定子通风沟数	23
5	定子通风沟宽/mm	10
6	定子槽数	324
7	定子槽宽/mm	15.2
8	定子槽深/mm	96
9	定子线规(绝缘后)/(mm×mm)	3.55×9.00 4.25×9.70
10	转子外径/mm	?3641
11	转子内径/mm	?3180
12	转子铁心长/mm	1200
13	转子通风沟数	23
14	转子通风沟宽/mm	10
15	转子槽数	264
16	转子槽宽/mm	14.3
17	转子槽深/mm	76

序号	项目	计算值
1	定子齿磁通密度/T	1.43
2	定子轭磁通密度/T	0.83
3	转子齿磁通密度/T	1.31
4	转子轭磁通密度/T	0.56
5	气隙磁通密度/T	0.71
6	定子电流磁通密度/(A/mm²)	3.31
7	线负荷/(A/cm)	528.3
8	热负荷/(0.1×A²/mm³)	1 747.6
9	总磁位降/A	6 655.68
10	硅钢片牌号	DW315-50

序号	项目	计算值
1	定子铜耗/kW	81.91
2	转子铜耗/kW	80.96
3	铁耗/kW	70.47
4	杂散损耗/kW	38.5
5	通风损耗/kW	47.5

时间	低温度/ ℃	高温度/ ℃	平均温度/ ℃	环境温度/ ℃	铁损/ (W/kg)
14:15	30.2	32.3	31.7	29.2	1.228
14:30	31.3	32.6	31.7	29.5	1.244
14:45	32.6	34.1	33.1	29.5	1.260
15:00	33.9	35.2	34.4	29.5	1.260
15:15	35.1	37.4	35.9	29.7	1.323
15:30	36.5	38.9	37.7	29.8	1.323
15:45	37.1	39.7	38.4	29.8	1.354