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1.南方电网科学研究院有限责任公司,广东省广州市 510663
2.中国南方电网有限责任公司,广东省广州市 510663
3.华南理工大学电力学院,广东省广州市 510641
郑外生(1967—),男,硕士,教授级高级工程师,主要研究方向:交直流混联大电网规划与运行。E-mail:zhengws@csg.cn
陈亦平(1978—),男,博士,教授级高级工程师,主要研究方向:电力系统稳定与控制。E-mail:22993177@qq.com
雪映(1989—),男,通信作者,博士,教授,主要研究方向:新型直流输电技术。E-mail:dr.yingxue@foxmail.com
收稿:2024-04-26,
修回:2024-06-26,
网络出版:2024-08-23,
纸质出版:2025-01-10
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郑外生,陈亦平,雪映等.面向新型电力系统的常规直流在线潮流反转应用启示[J].电力系统自动化,2025,49(1):183-192.
ZHENG Waisheng,CHEN Yiping,XUE Ying,et al.Enlightenment from Application of Conventional DC Online Power Flow Reversal for New Power Systems[J].Automation of Electric Power Systems,2025,49(1):183-192.
郑外生,陈亦平,雪映等.面向新型电力系统的常规直流在线潮流反转应用启示[J].电力系统自动化,2025,49(1):183-192. DOI: 10.7500/AEPS20240426008.
ZHENG Waisheng,CHEN Yiping,XUE Ying,et al.Enlightenment from Application of Conventional DC Online Power Flow Reversal for New Power Systems[J].Automation of Electric Power Systems,2025,49(1):183-192. DOI: 10.7500/AEPS20240426008.
高压直流输电系统是中国大范围能源资源优化配置的主体。现有常规直流潮流反转以直流闭锁方式下电压极性反转为核心,难以满足含高比例新能源的新型电力系统跨分区的灵活调节互济和暂态稳定支撑需求。文中面向国内跨异步分区互济需求,结合国外常规直流柔性调节应用经验,提出面向常规直流的新型在线潮流反转技术,可以显著提升常规直流的柔性调节能力。基于标准两区域异步互联系统和南方区域极端场景,验证了所提在线潮流反转控制的有效性。所提方法对于构建直流异步互联跨区域互济体系具有重大意义。
High voltage direct current (HVDC) transmission system is the main body of China’s large-scale energy resource optimal allocation. The existing conventional DC power flow reversal is based on the voltage polarity reversal in the DC blocking mode
which is difficult to meet the needs of cross-regional flexible adjustment sharing and transient stability support for the new power system with a high proportion of renewable energy. Combined with the application experience of conventional DC flexible regulation abroad
a new online power flow reversal technology for conventional DC is proposed to meet the demand of domestic cross-regional asynchronous sharing
which can significantly improve the flexible regulation ability of the conventional DC. Based on the standard two-region asynchronous-interconnection system and the southern region extreme scenario
the effectiveness of the proposed online power flow reversal control is verified. The proposed method is of great significance for the construction of DC asynchronous-interconnection cross-regional sharing system.
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