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Shunt active power filter is suitable to compensate current-type harmonics generated by nonlinear load. However which generates high frequency switching harmonic current into the power grid by using the pulse width modulation (PWM) technology. So the switching harmonic filter must be used to eliminate ripple current. Based on the analysis of the working principle of switching harmonic filter, the...
There is many control strategies used in the inverter. However, which is the most efficient control law in the same condition? So in this paper a novel multi-objective optimal SPWM (MOSPWM) control strategy of the inverter based on genetic algorithm (GA) is presented, which can find the effective one. In this control strategy a multi-objective function was created, which enables a voltage-source type...
Distributed generation (DG) is a hot spot nowadays, at the same time the harmonic pollution can't be ignored when DG is connected with the power grid through power converters. First discuss several harmonic suppression methods have been adopted in practice, such as increasing the number of converter pulse, using pulse width modulation (PWM) converter, passive power filter (PPF), active power filter...
Conventional shunt hybrid active power filter must endure fundamental voltage of power system. To overcome the disadvantage, a new kind shunt hybrid active power filter is researched which is suitable to high power system by installing the active power filter in parallel of fundamental series resonance branch. Based on the summing-up of its electric model, issues in their realization such as sharp...
Most symbolic classifiers aim at building sets of rules with good coverage and precision. While this is suitable for most applications, they tend to neglect other desirable properties, such as the ability to induce novel knowledge or to show new points of view of well-established concepts. An approach to overcome these limitations involves using a multi-objective evolutionary algorithm to build knowledge...
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