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In this paper, based on electrical machinery classical theory, the mathematical model of static steady operation for the huge hydro-generator is established, and the expressions of the static power characteristic and the static steady power limit are deduced. Reference on the design parameters of 1000 MW hydro-generator and 700 MW hydro-generator, the change laws of the static power characteristic...
In this paper, based on the relationship of the losses and rotor speed of generator, the braking time formula with the braking mode of the hydro-generator stator three-phase short-circuit is obtained within considering the stray losses. The breaking times at different braking currents and different input speeds about a 1000 MW hydro-generator are calculated. The results prove that it is feasible and...
Two novel constructions of one out of n oblivious transfer protocols from bilinear maps between groups are proposed. The protocols satisfy the category of non-interactive, mean that any sender S can obliviously transfer some secret(s) to a receiver R, but R does not send any messages back to S. The choice of a receiver is unconditionally secure. A sender's secrecy is guaranteed if the receiver is...
This paper presents a practical swimming data prediction method for a free-swimming, three-link robotic fish. Since a full hydrodynamic model for fish swimming is very complex and intractable, the primitive swimming data generated by a Central Pattern Generator controller is fed into a Back-Propagation Neural Network (BPNN) for trimming. After the process of training, the BPNN is able to predict the...
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