摘要
交直流混联电网是我国电网发展的新形态,然而换相失败在新的电网形态中表现形式更加复杂多变,对系统的安全稳定运行造成了巨大的隐患。首先根据换相失败的表现形式将其分类并定义,然后分别针对阀级换相失败和系统级换相失败,综述了目前已提出的相关抑制措施;最后,从交直流混联电网复杂的交互特性入手,分别对换相失败快速预测和提前触发控制、换相失败传播机理以及多换流站广域协调控制策略三个方面,给出了未来关于换相失败相关研究值得探索的方向。
The AC-DC hybrid power grid is a new form of development of China’s power grid.However,the manifestation of commutation failure under this new grid form is more complex and changeful which brings hidden dangers to the safe and stable operation of the grid.Firstly,commutation failure is classified and defined according to different manifestations,and then relevant mitigation measures are reviewed for valve-level commutation failures and system-level commutation failures.Finally,starting from the complex interaction characteristics of AC-DC hybrid power grids,future research directions related to commutation failures are proposed from following three aspects:fast prediction of commutation failure and advanced firing control,commutation failure propagation mechanism,wide-area coordinated control strategy for multiple converter stations.
作者
刘席洋
王增平
乔鑫
郑博文
LIU Xiyang;WANG Zengping;QIAO Xin;ZHENG Bowen(North China Electric Power University,State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources,Beijing 102206,China)
出处
《智慧电力》
北大核心
2020年第6期1-7,34,共8页
Smart Power
基金
国家重点研发计划资助项目(2016YFB0900604)
国家自然科学基金资助项目(51637005)。
