参数资料
| 型号： | EVAL-ADE7762EBZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 13/28页 |
| 文件大小： | 0K |
| 描述： | BOARD EVALUATION FOR ADE7762 |
| 标准包装： | 1 |
| 主要目的： | 电源管理，电度表/功率表 |
| 已用 IC / 零件： | ADE7762 |
| 已供物品： | 板 |
| 相关产品： | ADE7762ARWZ-ND - IC ENERGY METERING 3PHASE 28SOIC ADE7762ARWZ-RL-ND - IC ENERGY METERING 3PHASE 28SOIC |
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ADE7762
i ( t ) = I O + 2 × ∑ I n × sin ( ( n ω t ) ( β n ) )
V× I
2
INSTANTANEOUS
POWER SIGNAL
INSTANTANEOUS
ACTIVE POWER SIGNAL
∞
n = 1
where:
i ( t ) is the instantaneous current.
(4)
I O is the dc component.
0V
CURRENT
VOLTAGE
I n is the rms value of current harmonic n .
β n is the phase angle of the current harmonic.
Using Equation 3 and Equation 4, the active power, P, can be
INSTANTANEOUS
POWER SIGNAL
INSTANTANEOUS
ACTIVE POWER SIGNAL
expressed in terms of its fundamental active power (P 1 ) and
harmonic active power (P H ).
P = P 1 + P H
V× I
2
× cos(60°)
where:
P H = ∑ V n × I n cos φ n
0V
VOLTAGE CURRENT
60°
Figure 13. DC Component of Instantaneous Power Signal
P 1 = V 1 × I 1 cos φ 1
φ 1 = α 1 ? β 1
∞
n = 1
(5)
(6)
NONSINUSOIDAL VOLTAGE AND CURRENT
The active power calculation method also holds true for
nonsinusoidal current and voltage waveforms. All voltage and
current waveforms in practical applications have some har-
monic content. Using the Fourier transform, instantaneous
voltage and current waveforms can be expressed in terms of
their harmonic content
φ n = α n ? β n
As can be seen from Equation 6, a harmonic active power
component is generated for every harmonic, provided that
harmonic is present in both the voltage and current waveforms.
The power factor calculation has been shown to be accurate in
the case of a pure sinusoid. Therefore, the harmonic active
power also correctly accounts for power factor because
v ( t ) = V O + 2 × ∑ V n × sin ( n ω t + α n )
∞
n = 0
where:
v ( t ) is the instantaneous voltage.
(3)
harmonics are made up of a series of pure sinusoids. A limiting
factor on harmonic measurement is the bandwidth. On the
ADE7762, the bandwidth of the active power measurement is
14 kHz with a master clock frequency of 10 MHz.
V O is the average value.
V n is the rms value of voltage harmonic n .
α n is the phase angle of the voltage harmonic.
Rev. 0 | Page 13 of 28
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相关代理商/技术参数 |
参数描述 |
|---|---|
| EVAL-ADE7763EB | 制造商:Analog Devices 功能描述:EVALUATION BOARD DOCUMENTATION ADE7763 ENERGY METERING IC |
| EVAL-ADE7763ZEB | 功能描述:BOARD EVALUATION FOR ADE7763 RoHS:是 类别:编程器，开发系统 >> 评估演示板和套件 系列:- 标准包装:1 系列:PSoC® 主要目的:电源管理，热管理 嵌入式:- 已用 IC / 零件:- 主要属性:- 次要属性:- 已供物品:板，CD，电源 |
| EVAL-ADE7816EBZ | 功能描述:BOARD EVALUATION FOR ADE7816 RoHS:是 类别:编程器，开发系统 >> 评估演示板和套件 系列:- 标准包装:1 系列:PSoC® 主要目的:电源管理，热管理 嵌入式:- 已用 IC / 零件:- 主要属性:- 次要属性:- 已供物品:板，CD，电源 |
| EVAL-ADE7854EBZ | 制造商:Analog Devices 功能描述:EVALUATION BOARDS - Boxed Product (Development Kits) |
| EVAL-ADE7858EBZ | 制造商:AD 制造商全称:Analog Devices 功能描述:Poly Phase Multifunction Energy Metering IC with per Phase Active and Reactive Powers |
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