The increasing penetration rate of large-scale new energy distributed generation(DG)in distribution and transmission networks has brought complexity to substation management,thus requiring the development or revision of existing electricity regulations to adapt to the new situation.In addition,the increasing number of new energy DGs has an impact on the protection of existing substations.Power companies require generators to have more capabilities to maintain connections in the event of grid voltage faults or frequency disturbances,as well as to support system voltage and frequency under special conditions.
关键词
新能源分布式发电/变电站/继电保护/自动化
Key words
distributed power generation of new energy/substation/relay protection/automation