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In order to solve the problem of switching angle of a specific harmonic elimination inverter, a genetic algorithm is proposed to solve the problem of the nonlinear transcendental equation. This method overcomes the shortcoming of traditional numerical method, and does not need to give the initial value of the equation. It mainly uses the idea of solving the objective function minimum, combined with...
Using the genetic algorithm to solve the selective harmonic elimination technology optimization method, which can be arbitrary for the choice of initial value, make up for the deficiency of the Newton iterative algorithm, in the absence of specific initial conditions can complete the calculation, therefore there is no need predict the tendency of switch angles in the entire modulation range in advance...
The mobile-phone-stroke-input method at the sentence level is still regarded as a research hotspot of Chinese character input technology. The Chinese character is provided with five basic strokes moving in horizontal, vertical, left-falling, right-falling, whereas, which carries little singular information excessively, resulting in failing to realize the Chinese character input technology in a sentence...
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