为保障特高压交直流混联电网安全运行,充分发挥特高压远距离、大容量输电能力,保障资源大范围优化配置,应加强主网架结构、提升交直流仿真技术、修订稳定计算标准、完善运行控制策略等方面积极采取对策。加强主网架结构。特高压运行实践表明:交流电网规模必须与直流容量相匹配,才能承受大容量直流闭锁 In order to ensure the safe operation of UHV AC / DC hybrid power grid, give full play to the capability of long-distance and large-capacity UHV transmission and ensure a wide range of optimal allocation of resources, the main grid structure should be strengthened, the AC and DC simulation technology should be improved, the stable calculation standard revised, Operation control strategy and actively take countermeasures. Strengthen the main grid structure. UHV operating practices show that: the size of the AC grid must be matched with the DC capacity to withstand large-capacity DC blocking