【摘要】 从简要介绍云广特高压直流与贾广Ⅱ回高压直流输电工程入手,提出了共用接地极的构想。分析了两回直流系统共用接地极的数学模型,接着从工程实际的角度介绍了具体实施方法和步骤。最后阐述了采用共用接地极对于直流输电工程的意义并预测了共用接地极技术的应用前景。更多还原

【Abstract】 Firstly this paper gives a brief introduction of Yunnan-Guangdong Ultra HVDC and Guizhou-GuangdongⅡHVDC projects.Then it brings forward the plan of common grounding electrode.It presents the mathematic model of common grounding electrode in those two HVDC systems.From point of view of the practical engineer application,it introduces the detail methods and process.In the end,it expounds the importance of common grounding electrode technique for HVDC and predicts the application foreground.更多还原