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Selective harmonic elimination technique can eliminate any order harmonics theoretically, but it is restricted by the initial value of switching angles and the switching speed of power device, therefore, it has surplus high-order harmonics. The surplus harmonics exist in the form of harmonics group, there is a window which harmonic wave amplitude close to zero between the adjacent harmonic group....
Green, i.e., energy-efficient, communications technologies have been a trend for next-generation cellular communications systems. An imperative question for network operators to address is whether and to what extent one should move to embrace such newly proposed green communications technologies. On one hand, the introduction of green communications technologies saves the operating cost, and on the...
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...
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