Electrical Engineering ( IF 1.8 ) Pub Date : 2021-01-03 , DOI: 10.1007/s00202-020-01139-8 Salman Salman , Ai Xin , Aamir Shahzad , Arsalan Masood , Sheeraz Iqbal
Efficient and economic power delivery through HVAC transmission system over long distance is a great challenge due to its physical and operational constraints. HVDC systems are preferable for long-distance transmission due to the technical and economic superiority over HVAC systems. This paper further efforts supporting long-distance power transmission using bipolar HVDC system based on current source converter technology. In this regard, a novel control circuit for converters at both sides of the proposed system is presented. Then using E-HVAC system along with proposed HVDC system, a composite E-HVAC and HVDC model is presented where a transmission line in E-HVAC system is replaced by HVDC system. This composite E-HVAC and HVDC system covers the limitations of both systems when operating separately. Finally, the power upgradation and stability of composite E-HVAC and HVDC system and its behavior under transient instability is studied, and the results illustrate the effectiveness of proposed model under normal and abnormal conditions.
中文翻译:
E-HVAC和CSC-HVDC复合系统:控制及其故障分析
由于其物理和操作上的限制,通过HVAC传输系统长距离高效,经济地输送电力是一个巨大的挑战。由于与HVAC系统相比在技术和经济上具有优势,因此HVDC系统更适合长距离传输。本文进一步致力于基于电流源转换器技术的双极性HVDC系统支持远距离电力传输。在这方面,提出了在所提出的系统的两侧的用于转换器的新颖的控制电路。然后将E-HVAC系统与提出的HVDC系统一起使用,提出了一种E-HVAC和HVDC的复合模型,其中E-HVAC系统中的输电线路被HVDC系统代替。这种单独的E-HVAC和HVDC复合系统在单独运行时涵盖了两个系统的局限性。最后,