Wind energy, as one of the most mature and scalable renewable clean energy sources today, brings tremendous opportunities for harmonious development between humans and nature. Wind power generation is achieved through wind turbines operating in natural environments. Inevitably, they are subject to the impacts of natural disasters, with lightning strikes being one of the most prominent issues.
The characteristics of wind turbines themselves, including their installation locations, heights, integration of a large number of sensitive electronic and electrical components, as well as their high cost and maintenance, determine the strong demand for lightning protection systems. EasiTech provides comprehensive and efficient lightning protection solutions for wind power generation.
In accordance with the IEC 62305 series standards and the special protection requirements of various components of wind turbines specified in IEC 61400-24, the determination of lightning protection zones for wind energy generation systems and the installation and selection of surge protective devices (SPDs) must consider:
Lightning protection zones (LPZ 0…3);
Compliance of SPDs with test current waveforms (8/20 µs waveform and 10/350 µs waveform);
Voltage protection level (UP value of SPDs);
Power supply system voltage and standard (230/400V or 400/690V systems, TN and TT, etc.);
Harmonic interference; and more.
References to standards include:
IEC 62305 series standards “Protection against lightning”
IEC 61312 “Protection against lightning electromagnetic impulse”
IEC 61400-24 “Protection of wind turbines – Lightning protection”
IEC 61643-11 “Low-voltage surge protective devices connected to low-voltage distribution systems”
GB 50057 “Code for Design of Lightning Protection of Buildings”