參數(shù)資料
型號: DRM049
英文描述: Internet Connectivity with HCS12 16-bit Microcontroller using the ACP
中文描述: 互聯(lián)網(wǎng)連接與HCS12的16位微控制器使用非加太
文件頁數(shù): 15/80頁
文件大?。?/td> 1025K
代理商: DRM049
Introduction
Theory of Operation
DRM040 — Rev 0
Designer Reference Manual
MOTOROLA
Introduction
15
where:
is the instantaneous current
is the average value or DC component
is the rms value of current harmonic
h
is the phase angle of the current harmonic
.
Using the above equations, the active power P can be expressed in
terms of its fundamental (
P
1
) and harmonic (
P
H
) component.
where:
and
As can be seen from the above equation a harmonic active component
is generated by every harmonic within the signal, as long as the
harmonic is present in both voltage and current waveforms. As the active
power calculation is valid for sinusoidal waveforms and since a distorted
waveform is a summation of its sinusoidal Fourier components, the
original active power calculation is valid.
i
(
t
)
=
I
o
+
2
×
I
h
×
sin(
h
ω
t
+ β
h
)
h
=
1
(
t
)
0
h
β
h
P
=
P
1
+
P
H
P
1
=
V
1
×
I
1
cos
φ
1
φ
1
= α
1
β
1
P
H
=
Vh
h
=
2
×
Ih
cos(
φ
h
)
φ
h
=
α
h
β
h
F
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
.
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