Mountain wind turbine generator grounding system with high soil resistivity
By adopting a double-layer circular ring composite grounding network system and grounding electrode design in the wind turbine unit, the problem of difficulty in reducing the grounding resistance of the wind turbine unit in mountainous environments is solved, and the grounding resistance is less than 4 ohms is achieved, which improves the safety and reliability of the system.
CN222673324UActive Publication Date: 2025-03-25CHINA ENERGY CONSTR GRP SHAANXI ELECTRIC POWER DESIGN INST CO LTD
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Patent Information
- Application Number
- CN202421149916.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-24
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-05-24
AI Technical Summary
Technical Problem
In mountainous environments, the grounding resistance of the wind turbine unit is difficult to be less than 4 ohms, which cannot meet the grounding requirements of the wind turbine unit.
Method used
A double-layer ring composite grounding network system is adopted, including a first horizontal grounding network and a second horizontal grounding network, and these grounding networks are connected through several grounding poles to form a system with a total grounding resistance less than 4 ohms.
Benefits of technology
It effectively reduces the grounding resistance of the wind turbine, meets the grounding requirements of the wind turbine, and improves the safety and reliability of the system.
✦ Generated by Eureka AI based on patent content.
Abstract
The utility model provides a high-soil resistivity mountain wind turbine generator grounding system, which is applied to a wind turbine generator and comprises a first horizontal grounding grid, a second horizontal grounding grid and a grounding electrode, the first horizontal grounding grid is laid under a soil layer around the wind turbine generator by taking the wind turbine generator as a circle center and taking a first preset distance as a radius, and the second horizontal grounding grid is laid under the soil layer around the wind turbine generator by taking the wind turbine generator as a circle center and taking a second preset distance as a radius; the first horizontal grounding grid is connected with the second horizontal grounding grid; the plurality of grounding electrodes are respectively connected with the first horizontal grounding grid and the second horizontal grounding grid. The first horizontal grounding grid and the second horizontal grounding grid form a double-layer circular ring composite grounding grid, and the grounding electrode is matched, so that the total grounding resistance of the horizontal grounding grid is smaller than 4 ohms, and the problem that a wind turbine generator grounding system does not meet the grounding requirement is solved.
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