A Permanent-Magnet Tubular Linear Generator for Ocean Wave Energy Conversion

Partial Stator Overlap in a Linear Generator for Wave Power: An Experimental Study

“…Due to the high forces and the slow and highly variable speed in alternating directions, the power captured by the point absorber cannot be connected to any conventional rotating generator, without adding an intermediate conversion step, which will add to system complexity and system loss. A linear generator can take advantage of the heave motion of the wave and therefore linear generators are used in several different wave energy converters [4][5][6][7]. Drawbacks with linear generators for wave power is that they become very large due to the high forces and low velocities [8,9] and that the induced voltage varies in both frequency and amplitude [10][11][12][13].…”

Separated magnet yoke for permanent magnet linear generator for marine wave energy converters

“…Wave Energy Converters D a wave energy converter with a direct drive linear generator [1][2][3][4]. The linear generators are proposed for WECs to simplify the overall structure.…”

“…The forces parallel to the X-axis do not affect the bearings directly due to the free bearing motion on the X-axis but they do cause latching of the translator, unwanted noise and vibrations [3]. The forces parallel to the Y-axis are directly destructive to the bearings and the supporting structure due to the translator's locked freedom on the Y-axis.…”

Dynamic Stability Enhancement of Hybrid System Using Fuzzy Logic Controller

“…A design optimization of an autonomous wind-PV-batteryHPGSwasillustratedin [10]whereasadesign optimization technique for a grid-connected wind-PV-battery HPGS based on a multi-objective genetic algorithm was reportedin [11].Dynamic stability of amicrogrid connecting with a wind turbine generator, a diesel synchronous generator, and a battery-based energy storage system was investigated in [12] while the small-signal stability improvement results of a gridconnected PV-diesel engine HPGS using an auxiliary signal in PVcontrolloopwerepresentedin [13].Theauthorsin [14]proposedanovelcontrolschemebasedonthestateofchargeofthebatterytoimprovetheperformanceofawind-PV-battery-based HPGS.TheapplicationofaSMEStoenhancedynamicsecurity of a grid-connected wind-PV HPGS during grid voltage sag was investigated in [15] while the voltage stabilization of a hybrid micro-sgrid using SCs was reported in [16].ItshouldbenotedthatmostoftheproposedHPGSsreported in literature were mainly based on wind and PV. This is due to thefactthatwindandPVcancomplementeachotherandtheir technologies have been well-established.…”