所以,在整个 Transformer 中,FFU 和 ANU 都有X,\hat{X} \in \mathbb{R}^{T \times d}。 而两者的驱动公式(Core Formula),则为: 每一个 FFU 都能为我们引入一套权重W = [{W_1}^{T \times d},\ {W_2}^{T \times d}]和偏移B= [{B_1}^{T \times d},\ {B_2}^{T \times d}]...
The current flowing through the windings causes them to heat up, which results in a loss of power. The total losses in a transformer can be calculated using the following formula: Total losses = Core losses + Copper losses The efficiency of a transformer is defined as the ratio of the ...
Hysteresis loss it the highest contributor to the core losses. The core of a transformer is made-up of ferromagnetic materials such as silicon steel. When place in a magnetic field, the molecules in them oriented towards one direction depending on the polarity of the field. But the magnetic f...
measured during the open-circuit test, and the copper losses, determined through the short-circuit test, are combined with the output power to calculate the efficiency using the following formula:
This grain-oriented electrical steel sheet is used in the stacked core of a transformer, and a sheet thickness t of the steel sheet and the deterioration of core loss if the steel sheet is subjected to elliptical magnetization as defined by formula (1) satisfy the following relationships. If ...
Iron-core loss42.0W49.8W Copper loss191.9W192.2W Total loss233.9W242W Output power10,015W7859W Efficiency97.72%97.01% Sign in to download full-size image Fig. 2.56.(A) Measured wave shapes of 15 kVA three-phase transformer feeding linear load (see rms values ofTable 2.6). (B) Measured ...
The formula calculates the weighted geometric mean for loss of tissue usage. The idea is motivated by previous computer vision research65. We use this method to encourage the model to balance the performance on multiple tissues and pay attention to those tissues that harder to classify. For the...
SIoU loss function The original YOLOv8 follows the CIoU (Complete-IOU) paired with DFL (Distribution Focal Loss)30 of YOLOv5 as the target recognition loss function, where the formula for CIoU is shown in Eq. (4)31: $$\begin{gathered} {L_{CIoU}}=1 - {L_{IoU}}+\frac{{{\gamma ...
The BP calculation formula is as follows: BP(\hat{S}; S) = \begin{cases} 1, & \text{when } c \geq r \\ e^{1 - r / c}, & \text{when } c < r \end{cases} \\ cis the total length of the candidate translation
between 95% – 98.5%. When a transformer is highly efficient, then its input and output have almost the same value, and therefore it is not practical to calculate the efficiency of the transformer by using the above formula. But to find its efficiency, the following formula is better to ...