
Power Analyzer
Appendix
85
Measurement Function
Calculation Formula
Fundamental Phase
φ
U
𝐻𝐻01
= arg [
𝑈𝑈
(1)]
Relative to the sync source
φ
I
𝐻𝐻01
= arg [
𝐼𝐼
(1)]
Relative to the sync source
THD
𝑈𝑈
𝑇𝑇𝐻𝐻𝐷𝐷
=
�𝑈𝑈
𝑟𝑟𝑟𝑟𝑟𝑟
2
− 𝑈𝑈
𝐻𝐻01
2
𝑈𝑈
𝐻𝐻01
𝐼𝐼
𝑇𝑇𝐻𝐻𝐷𝐷
=
�𝐼𝐼
𝑟𝑟𝑟𝑟𝑟𝑟
2
− 𝐼𝐼
𝐻𝐻01
2
𝐼𝐼
𝐻𝐻01
Fundamental Content
𝑈𝑈
𝑐𝑐𝑟𝑟
=
𝑈𝑈
𝐻𝐻01
𝑈𝑈
𝑟𝑟𝑟𝑟𝑟𝑟
𝐼𝐼
𝑐𝑐𝑟𝑟
=
𝐼𝐼
𝐻𝐻01
𝐼𝐼
𝑟𝑟𝑟𝑟𝑟𝑟
Harmonic Content
𝑈𝑈
ℎ𝑟𝑟
=
�𝑈𝑈
𝑟𝑟𝑟𝑟𝑟𝑟
2
− 𝑈𝑈
𝐻𝐻01
2
𝑈𝑈
𝑟𝑟𝑟𝑟𝑟𝑟
𝐼𝐼
ℎ𝑟𝑟
=
�𝐼𝐼
𝑟𝑟𝑟𝑟𝑟𝑟
2
− 𝐼𝐼
𝐻𝐻01
2
𝐼𝐼
𝑟𝑟𝑟𝑟𝑟𝑟
hvf
ℎ𝑣𝑣𝑣𝑣
=
1
𝑈𝑈
𝑁𝑁
��
𝑈𝑈
𝐻𝐻𝐻𝐻
2
𝑘𝑘
13
𝐻𝐻=2
, (
𝑘𝑘 ≠
3
𝑛𝑛
𝑣𝑣𝑓𝑓𝑓𝑓
3
− 𝑝𝑝ℎ𝑎𝑎𝑎𝑎𝑎𝑎
𝑚𝑚𝑓𝑓𝑚𝑚𝑓𝑓𝑓𝑓
)
hcf
ℎ𝑐𝑐𝑣𝑣
=
1
𝐼𝐼
𝑁𝑁
�� 𝐼𝐼
𝐻𝐻𝐻𝐻
2
13
𝐻𝐻=2
Active Power
𝑃𝑃
=
𝑢𝑢 ∙ 𝑖𝑖
𝑃𝑃
Σ
=
𝑢𝑢
𝐴𝐴
∙ 𝑖𝑖
𝐴𝐴
+
𝑢𝑢
𝐵𝐵
∙ 𝑖𝑖
𝐵𝐵
+
𝑢𝑢
𝐶𝐶
∙ 𝑖𝑖
𝐶𝐶
Assume I
N
= 0 for 3P3W3M
Fundamental Active
Power
𝑃𝑃
𝐻𝐻01
=
𝑈𝑈
𝑟𝑟
(1)
𝐼𝐼
𝑟𝑟
(1) +
𝑈𝑈
𝑗𝑗
(1)
𝐼𝐼
𝑗𝑗
(1)
Summary of Contents for NORMA 6003
Page 6: ......
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