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This paper presents a novel constant switching frequency band controller for dynamic voltage restorer (DVR) with a proposed filter structure. The switching operation of voltage source inverter (VSI) based on band controller which restricts the injected voltages within a band, is explored. This control method of the VSI inherits merits such as fast dynamic response, robustness, zero magnitude/phase...
Interest in multilevel power converters has been increased in the last decades due to numerous advantages. Therefore, new control concepts have to be developed or existing control techniques must be extended to take advantage of these benefits.However, although multilevel inverters present numerous advantages, some drawbacks are evident. They require a higher number of semiconductors and either multiple...
In this paper, a minimally switched control algorithm for a three-phase four-leg voltage source inverter topology is proposed for compensation of unbalanced and nonlinear loads. An optimized control technique is necessary for the three-phase four-leg topology, otherwise it requires higher switching operations of the switches in the voltage source inverter for tracking three-phase and neutral currents...
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