发电厂接地网接地阻抗测量分析研究

Analysis of Ground Impedance of Power Plant Grounding Network

本文介绍了三种接地网接地阻抗测试方法的测试原理及其优缺点,结合大型山地风电场接地网接地阻抗测试结果,阐明了接地阻抗中感性分量已成为大型接地网接地阻抗的重要部分,并分析讨论了接地网接地阻抗测量过程中的影响因素,针对各影响因素给出了相应优化控制措施。

This paper introduces the testing principles,advantages and disadvantages of three grounding impedance testing methods.Combined with the testing results of grounding impedance of large mountain wind farms,it is explained that the inductive component of grounding impedance has become an important part of the grounding impedance of large grounding networks,and analyzes and discusses the influencing factors in the grounding impedance measurement process.Corresponding optimal control measures are given for each influencing factor.