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This study is an attempt to present a theoretical approach of the hypothesis of electrostatic charging of rotor blades during storms and its effects on the lightning protection and overvoltage protection systems during lightning strokes.Overvoltage and overcurrent in form of surges may be the result of electromagnetic traveling waves caused by lightning strokes, especially if the grounding (earthing)...
The aim of this paper is to explore and disclose the experiences during the measurements of the effects of lightning transient currents injected by means of a surge generator on the DC overvoltage protection system on a real MW-Class photovoltaic (PV) plant.
The aim of this paper is to present a theoretical approach of the hypothesis of electrostatic charging of rotor blades during storms and its effects on the lightning protection and overvoltage protection systems; taking into consideration the dimensions of multi-megawatt wind turbines and a particular electrical topology.
An electromagnetic analysis of a wind turbine blade's lightning protection system will be given. Impedance measurements on a 16 m blade tip are performed for a frequency sweep up to 30 MHz. The influence of the blade's position is analyzed. Measurement data is used to derive a method-of- moments model with a commercial tool. The method-of-moments model will be compared to a finite element model. Both...
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