= pad_idx).unsqueeze(-2) if tgt is not None: self.tgt = tgt[:, :-1] self.tgt_mask = self.make_std_mask(self.tgt, pad_idx) self.tgt_y = tgt[:, 1:] # used for loss calculation self.ntokens = (self.tgt_y != pad_idx).data.sum() # used for loss calculation @...
Harmonic lossesJiles-Atherton modelHysteresisAlternating resistance factorBeginning with characterizing the nonlinearities of transformer, this paper uses the J-A model to represent the hysteresis of iron core, and fits the model in calculating exciting current. Compared with the other methods, such as ...
Determination of the hysteresis core losses on a single-phase transformer by using a dynamic Preisach-type hysteresis model In this paper it is presented a family of curves related to the analytical reference value for the calculation of eddy current losses considering the skin ... AD Blas,R Ba...
Efficiency Calculation of the Transformer The equivalent circuit of transformer referred to primary side is shown below. Here Rcaccounts for core losses. Using Short circuit(SC) test, we can find the equivalentresistanceaccounting for copper losses as ...
According to the thermal process of transformer core and winding,this paper analyzes the compositions of core loss and load loss and their impacts on top oil temperature and hot-spot temperature of a transformer,and discusses the physical meanings of the parameters of the hot-spot temperature calc...
weight (optional): A list of length num_labels containing the weights to assign to each label for loss calculation. args: (optional) python dict - A dictionary containing any settings that should be overwritten from the default values. use_cuda: (optional) bool - Default = True. Flag used...
Eddy current loss calculation of flux shield in the large turbo generator using axi-periodic analysis Axi-periodic analysis for end region of large turbine generator is studied and verified by 3D-FEA inthis paper. Verification is done by comparing three components of flux densities from axi-periodi...
The deviation from standard with "sharp calculation" is to use uLDO, at least double the amount of capacitance and use Schottky diodes or LT4320 ideal rectifiers and check all possible scenarios plus measuring to see if things work out OK. Last edited: 2024-09-17 10:00 am Reactions: ...
(Bert、LlaMA etc Large Language Model),even includingany custom modelsviatorch.nn.function.*as long as based on the Pytorch implementation. Meanwhile this tool supports the printing of FLOPS, Parameter calculation value and proportion of each submodule of the model, it is convient for users to ...
The calculation of unbalanced currents and voltages due, for example, to short-circuit faults requires correct and practical modelling of power transformers. In this section, we present the theory of modelling single-phase transformers, and three-phase power transformers having various numbers of windin...