SF1250-16/2150水轮发电机槽数选162槽有问题吗?
请问各位朋友:有个水轮机发电机SF1250-16/2150,1250KW,空载是没有振动,加励磁后振动比较大,但是振动不随励磁电流增大而增大,详细的参数我也不清楚,我只知道它的定子槽数是162,我怀疑是槽数有问题,3q中分母等于p了。请问各位朋友这个槽数有问题吗? 对滴!你这的确是槽数选择有问题,解决方法就是改接线 Z= 162P1= 8 Y= 6 Q1= 27 / 8G1= 81 K= 0A B C
1 8 -5
2 9 -6
3 10 -7
4 -18 15
-11 -19 16
-12 -20 17
-13 28 -25
-14 29 -26
21 30 -27
22 31 35
23 -38 36
24 -39 37
-32 -40 -45
-33 -41 -46
-34 48 -47
42 49 55
43 50 56
44 51 57
-52 -59 58
-53 -60 -65
-54 -61 -66
62 69 -67
63 70 -68
64 71 75
-72 -79 76
-73 -80 77
-74 -81 78
82 89 -86
83 90 -87
84 91 -88
85 -99 96
-92 -100 97
-93 -101 98
-94 109 -106
-95 110 -107
102 111 -108
103 112 116
104 -119 117
105 -120 118
-113 -121 -126
-114 -122 -127
-115 129 -128
123 130 136
124 131 137
125 132 138
-133 -140 139
-134 -141 -146
-135 -142 -147
143 150 -148
144 151 -149
145 152 156
-153 -160 157
-154 -161 158
-155 -162 159
P= 8 KYP= .8021 KQPA= .955 KQPB= .955 KQPC= .955 FP=100 FPF= 0 KWP= .766
V KQV PHAN KQVP KQVN KYV FVP FVN
2 .02000436 55.55555556 .02000436 0 .23061587 2.408985784769 .000000000002
.02000436 175.55555556
.02000436 -64.44444444
4 .02593885 -68.88888889 0 .02593885 .44879918 .000000000007 3.039436981858
.02593885 171.11111111
.02593885 51.11111111
6 .09350904 -13.33333333 0 0 .64278761 .000000000021 .000000000004
.09350904 -13.33333333
.09350904 -13.33333333
8 .95498951 42.22222222 .95498951 0 .80212319 100 .000000000005
.95498951 162.22222222
.95498951 -77.77777778
10 .05141495 97.77777778 0 .05141495 .91821611 .00000000003 4.930427832976
.05141495 -22.22222222
.05141495 217.77777778
12 .05397084 153.33333333 0 0 .98480775 .000000000016 .000000000004
.05397084 153.33333333
.05397084 153.33333333
14 .02034191 208.88888889 .02034191 0 .99830816 1.514881159986 .000000000004
.02034191 -31.11111111
.02034191 88.88888889
16 .01853246 84.44444444 0 .01853246 .95798951 .000000000007 1.158841541089
.01853246 -35.55555556
.01853246 204.44444445 2楼的朋友,可以留个联系方式吗?进一步向你学习。我看的它的接线循环数为:43343343...... 我初步按Y=6,循环系列43343343来分析了一下,10谐波分量相当大 我初步按Y=6,循环系列43343343来分析了一下,10谐波分量相当大 回复 1# chenjun153983
我建议你改循环系列为44433333或33333444
以下是该接线后的谐波分析
P= 8 KYP= .8021 KQPA= .9435 KQPB= .9435 KQPC= .9435 FP=100 FPF= 0 KWP= .7568
V KQV PHAN KQVP KQVN KYV FVP FVN
2 .11600207 142.22222222 .11600207 0 .23061587 14.139003635134 .000000000002
.11600207 262.22222222
.11600207 22.22222222
4 .02176046 104.44444444 0 .02176046 .44879918 .000000000009 2.580797338467
.02176046 -15.55555556
.02176046 224.44444444
6 .00765882 246.66666667 0 0 .64278761 .000000000023 .000000000003
.00765882 246.66666667
.00765882 246.66666667
8 .94352858 28.88888889 .94352858 0 .80212319 100 .000000000004
.94352858 148.88888889
.94352858 268.88888889
10 .01476151 171.11111111 0 .01476151 .91821611 .000000000028 1.43274706987
.01476151 51.11111111
.01476151 -68.88888889
12 .07608138 -46.66666667 0 0 .98480775 .000000000013 .000000000003
.07608138 -46.66666667
.07608138 -46.66666667
14 .12027682 95.55555556 .12027682 0 .99830816 9.065930143824 .000000000003
.12027682 215.55555556
.12027682 -24.44444444
16 .01587489 57.77777778 0 .01587489 .95798951 .00000000001 1.00472100356
.01587489 -62.22222222
.01587489 177.77777778 不难看出10次谐波由4.93%下降到了2.58%,降幅相当明显,这样之后,你只要在机座上增加点筋板,噪音及没问题了 Y=6是什么意思? Y=6是节距等于6,即1-7 除了整个电机的对称外,也要保证小单元电机对称,甚至一相N—S极的对称,会大大降低噪声 请问谐波分析计算里的,KQV,KQPA,PHAN等封符号都代表了什么意思? 是的,多学习前辈的经验,至少在实践中可以少出问题。。 多学习前辈的经验,至少在实践中可以少出问题。。
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