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首页> 外文会议>2014 International Conference on Power System Technology: Towards Green, Efficient and Smart Power System >Research on black-start technology of HVDC power transmission system
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Research on black-start technology of HVDC power transmission system

机译：高压直流输电系统的黑启动技术研究

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摘要

A black-start technology of high voltage direct current (HVDC) power transmission system based on pseudo-deicer startup mode is proposed by analyzing HVDC deicer operation mode, which breaks through the technical bottleneck of HVDC power transmission system could not be firstly involve in the grid black-start due to the half-controlled thyristor device and the weak environment of AC grid. In this paper, the conception of pseudo-deicer startup mode is proposed for the first time, and its black-start implementation process is given. In addition, the startup demand of HVDC system inverter station and the AC grid, and the control and protection requirements of AC and DC systems are researched. Finally, examples for ±500kV Long-Zheng HVDC system engineering of China, the feasibility of the black-start technology of HVDC power transmission system based on pseudo-deicer startup mode is demonstrated by simulation. The proposed technology effectively avoid the impact of HVDC transmission power to the AC grid in the black-start beginning, and the transmission power is continuously adjustable, which could realize the synchronization between the transmission power with the recovery process of AC grid and load. It plays a positive role and has important practical significance to speed up the grid rapid recovery after large-scale blackout accidents.
机译：通过分析HVDC除冰器的运行方式，提出了一种基于伪除冰器启动方式的高压直流输电系统黑启动技术，突破了HVDC输电系统的技术瓶颈。由于半控晶闸管器件和交流电网的薄弱环境，导致电网黑启动。本文首次提出了伪除冰器启动方式的概念，并给出了其黑启动的实现过程。此外，还研究了高压直流输电系统换流站和交流电网的启动需求，以及交直流系统的控制和保护要求。最后，以我国±500kV龙正高压直流输电系统工程为例，通过仿真验证了基于伪除冰器启动方式的高压直流输电系统黑启动技术的可行性。该技术有效地避免了黑启动时高压直流输电功率对交流电网的影响，并且输电功率是连续可调的，可以实现输电功率与交流电网的恢复过程以及负载之间的同步。它对大规模停电事故后加快电网的快速恢复具有积极作用，具有重要的现实意义。

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