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Electrical marine propulsion systems are characterized by very high level requirements in terms of compactness, acoustic behavior and reliability. In this particular context, the use of multiphase PM machines associated with VSI drives appears to be a very efficient solution. Presented work focus on the use of such a system in open circuited phase fault conditions. With this kind of system it is possible...
This paper presents a study on the injection transformer, showing the influence of its saturation on the performances of the series active power filter to compensate the voltage perturbation. The determination of voltage references for series active power filter is based on a robust three-phase digital phase locked loop (PLL). A control strategy related to fuzzy hysteresis band voltage method, where...
This paper deals with the speed control of a variable speed DFIG-based marine current turbine. Indeed, to increase the generated power and therefore the efficiency of a marine current turbine, a nonlinear controller has been proposed. DFIG has been already considered for similar applications particularly wind turbine systems using mainly PI controllers. However, such kinds of controllers do not adequately...
This paper presents a new control design of an unified power quality conditioner (UPQC) for harmonics and voltage compensation in a power distribution system. The topology of the UPQC is based on a combination of two 3-phase series and parallel active power filters. The determination of voltage references for series active power filter is based on a robust three-phase digital phase locked loop (PLL)...
In this paper a novel hysteresis voltage control for a series active power filter is proposed to improve the Power Quality (PQ), which is one of the most important issues of modern electrical distribution. The active filter controller is based on a new control strategy related to hysteresis band voltage control method, where the band is modulated with the system parameters to maintain the modulation...
Power quality (PQ) is one of the most important issues of modern electrical distribution. The series active filter can play a very significant role in the correction of PQ problems such as voltage unbalance, sag, interruption and voltage harmonics. This paper deals with the determination of voltage references for series active power filter based on a robust three-phase digital locked loop (PLL) system...
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