DC power re-allocation method during quit running of converter in multi-end DC power transmission system connected with offshore wind power

The invention discloses a DC power re-allocation method during quit running of a converter in a multi-end DC power transmission system connected with offshore wind power. According to the method, DC power re-allocation is achieved by reasonably configuring a controller of the converter at each receiving end, a transfer power is completely absorbed by an alternating current wherein the converter at a fault end is located, so that the influence of power flow re-allocation on stable frequency of an AC power grid is reduced. The method disclosed by the invention is used for analyzing a quit running situation of an ashore converter when a seven-end flexible DC power transmission system connected with a large-capacity offshore wind electric field, and the designed DC power re-allocation strategy is verified on the improvement of the stable frequency of the ashore AC system. 本发明公开了种海上风电接入多端柔性直流输电系统中换流站退出运行时的直流功率再分配方法，该方法可以在岸上换流站退出运行时，通过合理地配置各受端换流站的控制器实现直流功率重分配，转移功率完全被故障端换流站所在交流电网消纳，从而减小了潮流重分配对交流电网频率稳定影响。使用本发明方法分析大容量