Jiangxi Diaoyutai Wind Farm Lightning Protection And Grounding Project Case
I.lightning protection project background
Jiangxi Taihe Diaoyutai wind farm is located in the hilly area,the line distribution environment is complex,the tower where the potential geomorphological irregular distribution,resulting in uneven distribution of soil resistance,which in turn triggered frequent tripping phenomenon.Conventional testing can only find part of the problem,can not reveal the root cause.
II.The cause of tripping analysis
Oumaan Technology Group's Heilongjiang Hengdian Lightning Protection Engineering Co.,Ltd.and State Power Investment Group Jiangxi Electric Power Co.,Ltd.new energy power generation branch of the joint systematic analysis of the above issues.The two sides co-operate through the site conditions of the investigation,wave recording analysis,grounding resistance detection,as well as resistivity testing and reduction calculations,confirming that the root cause of tripping is caused by the impact of excessive grounding resistance caused by the impact of the tripping phenomenon.
III.Lightning protection and grounding project implementation
Lightning protection and grounding renovation project targeted at the entire line of the tower grounding renovation,focusing on flashover measures,equipment potential,lightning arrester performance and wiring for investigation and improvement,in particular,to strengthen the impact resistance of the ground network.
In addition,Oumaan Technology Group uses new lightning protection technology.
The environmental structure within the effective range of the ground network has been fundamentally adjusted by means of the flexible grounding technology,which greatly improves its impact resistance and ability to absorb lightning charges,significantly reduces the lightning overvoltage and grounding resistance,improves the grounding performance of the wind farms and ensures the stability and reliability of the grounding system.In addition,the presence of anti-corrosion layer effectively extends the service life of the grounding body,reducing maintenance costs.
IV.The effect of analysis
1.After the transformation,the line has been running for more than a year without reoccurring lightning strike tripping,wind turbine failure rate due to lightning strikes has been significantly reduced,verifying the effectiveness of the work of both sides,confirming the accuracy of the judgement of the problem and the appropriateness of the measures,and obtaining a satisfactory result.
2.The line is currently running stably,which not only saves the country a lot of restoration costs,but also significantly reduces economic losses.The renovated single line can bring more than 1 million RMB per year,which has good economic and social benefits.
V.Conclusion
1.The application of flexible grounding technology in the lightning protection and grounding project of Jiangxi Diaoyutai wind farm has achieved remarkable results.The project won the first(2021)national wind turbine technology transformation annual meeting of technology transformation science and technology excellent results.
2.By reducing the grounding resistance,improving the stability and reliability of the grounding system and reducing the damage to the environment,the flexible grounding technology provides a strong guarantee for the lightning protection of wind farms.This successful case provides a useful reference for other similar projects.
3.In the future,with the continuous development of new energy industry,lightning protection and grounding engineering will face more challenges and opportunities.Oumaan Technology Group will continue to explore and research flexible grounding technology and other new grounding methods to provide more solid technical support for the safe and stable operation of new energy power generation.At the same time,we will also focus on the improvement of environmental performance,to promote the harmonious development of new energy industry and ecological environment.
To learn more about lightning protection engineering related information,welcome to call the hotline!
Recommended lightning protection products:
Flexible Grounding Electrode:excellent resistance effect+anti-corrosion environmental protection and safety+applicable to a variety of terrain
I.lightning protection project background
Jiangxi Taihe Diaoyutai wind farm is located in the hilly area,the line distribution environment is complex,the tower where the potential geomorphological irregular distribution,resulting in uneven distribution of soil resistance,which in turn triggered frequent tripping phenomenon.Conventional testing can only find part of the problem,can not reveal the root cause.
II.The cause of tripping analysis
Oumaan Technology Group's Heilongjiang Hengdian Lightning Protection Engineering Co.,Ltd.and State Power Investment Group Jiangxi Electric Power Co.,Ltd.new energy power generation branch of the joint systematic analysis of the above issues.The two sides co-operate through the site conditions of the investigation,wave recording analysis,grounding resistance detection,as well as resistivity testing and reduction calculations,confirming that the root cause of tripping is caused by the impact of excessive grounding resistance caused by the impact of the tripping phenomenon.
III.Lightning protection and grounding project implementation
Lightning protection and grounding renovation project targeted at the entire line of the tower grounding renovation,focusing on flashover measures,equipment potential,lightning arrester performance and wiring for investigation and improvement,in particular,to strengthen the impact resistance of the ground network.
In addition,Oumaan Technology Group uses new lightning protection technology.
The environmental structure within the effective range of the ground network has been fundamentally adjusted by means of the flexible grounding technology,which greatly improves its impact resistance and ability to absorb lightning charges,significantly reduces the lightning overvoltage and grounding resistance,improves the grounding performance of the wind farms and ensures the stability and reliability of the grounding system.In addition,the presence of anti-corrosion layer effectively extends the service life of the grounding body,reducing maintenance costs.
IV.The effect of analysis
1.After the transformation,the line has been running for more than a year without reoccurring lightning strike tripping,wind turbine failure rate due to lightning strikes has been significantly reduced,verifying the effectiveness of the work of both sides,confirming the accuracy of the judgement of the problem and the appropriateness of the measures,and obtaining a satisfactory result.
2.The line is currently running stably,which not only saves the country a lot of restoration costs,but also significantly reduces economic losses.The renovated single line can bring more than 1 million RMB per year,which has good economic and social benefits.
V.Conclusion
1.The application of flexible grounding technology in the lightning protection and grounding project of Jiangxi Diaoyutai wind farm has achieved remarkable results.The project won the first(2021)national wind turbine technology transformation annual meeting of technology transformation science and technology excellent results.
2.By reducing the grounding resistance,improving the stability and reliability of the grounding system and reducing the damage to the environment,the flexible grounding technology provides a strong guarantee for the lightning protection of wind farms.This successful case provides a useful reference for other similar projects.
3.In the future,with the continuous development of new energy industry,lightning protection and grounding engineering will face more challenges and opportunities.Oumaan Technology Group will continue to explore and research flexible grounding technology and other new grounding methods to provide more solid technical support for the safe and stable operation of new energy power generation.At the same time,we will also focus on the improvement of environmental performance,to promote the harmonious development of new energy industry and ecological environment.
To learn more about lightning protection engineering related information,welcome to call the hotline!
Recommended lightning protection products:
Flexible Grounding Electrode:excellent resistance effect+anti-corrosion environmental protection and safety+applicable to a variety of terrain
