发电厂、变电站接地系统降阻优化研究的中期报告摘要：本文针对电力系统中发电厂和变电站接地系统阻抗过高、接地电压过高的问题，进行了中期研究报告。主要包括两个方面的内容：一是分析了发电厂、变电站接地系统阻抗过高的原因，包括土壤电阻率、接地电极数量、接地电极深度等因素的影响；二是探讨了接地系统降阻的方法，包括增加接地电极数量、采用化学接地、改进接地电极形式等措施。在实际工程应用中，结合具体情况，采用以上措施可以有效降低接地系统的阻抗，提高接地电压质量，确保电力设备的安全运行。关键词：发电厂、变电站；接地系统；阻抗；降阻Abstract:Thispaperfocusesontheproblemofhighimpedanceandhighgroundingvoltageinthegroundingsystemofpowerplantsandsubstationsinpowersystems,andpresentsamidtermresearchreport.Themaincontentincludestwoaspects:first,thereasonsforhighimpedanceingroundingsystemsofpowerplantsandsubstationsareanalyzed,includingtheinfluenceoffactorssuchassoilresistivity,groundingelectrodequantity,andgroundingelectrodedepth;Second,themethodsforreducingthesystemimpedancearediscussed,includingaddinggroundingelectrodesquantity,usingchemicalgrounding,improvinggroundingelectrodeforms,etc.Inpracticalengineeringapplications,combinedwithspecificsituations,usingthesemeasurescaneffectivelyreducetheimpedanceofthegroundingsystem,improvethequalityofgroundingvoltage,andensurethesafeoperationofthepowerequipment.Keywords:Powerplants,substations;groundingsystem;impedance;reducingimpedance.