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1.国网经济技术研究院有限公司,北京市 102209
2.南京南瑞继保电气有限公司,江苏省南京市 211102
3.国家电网有限公司,北京市 100031
Received:01 September 2024,
Revised:2025-01-02,
Published Online:18 February 2025,
Published:10 April 2025
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王宇,姜崇学,宋胜利等.基于源网直储一体化的沙戈荒大规模新能源基地外送方案[J].电力系统自动化,2025,49(7):126-134.
WANG Yu,JIANG Chongxue,SONG Shengli,et al.Transmission Scheme for Large-scale Renewable Energy Bases in Gobi Desert and Other Arid Areas Based on Integration of Source, Grid, DC and Storage[J].Automation of Electric Power Systems,2025,49(7):126-134.
王宇,姜崇学,宋胜利等.基于源网直储一体化的沙戈荒大规模新能源基地外送方案[J].电力系统自动化,2025,49(7):126-134. DOI: 10.7500/AEPS20240901001.
WANG Yu,JIANG Chongxue,SONG Shengli,et al.Transmission Scheme for Large-scale Renewable Energy Bases in Gobi Desert and Other Arid Areas Based on Integration of Source, Grid, DC and Storage[J].Automation of Electric Power Systems,2025,49(7):126-134. DOI: 10.7500/AEPS20240901001.
针对沙戈荒地区大型新能源基地外送场景,提出了一种基于源网直储一体化的大规模新能源特高压直流送出方案。将大规模新能源基地分区,并通过多个低电压等级柔性直流通道汇集至特高压直流送端换流站,汇集通道的新能源侧配备具有构网型控制功能的储能装置,以平抑新能源功率波动并支撑新能源并网电压。特高压直流系统采用送端常规直流、受端柔性直流方式。从适用场景、运行特性、经济性能等方面分析所提方案的特点,并提出多电力电子换流器的协同控制策略。基于PSCAD/EMTDC电磁暂态仿真平台对稳态、交直流暂态工况进行仿真,验证了所提方案的可行性。
Aimed at the transmission scenario of large-scale renewable energy bases in the Gobi Desert and other arid areas
an ultra-high voltage direct current (UHVDC) transmission scheme for large-scale renewable energy base based on the integration of source
grid
direct current and storage is proposed. The large-scale renewable energy base is divided into zones
and is integrated through multiple low-voltage voltage source converter based high voltage direct current (VSC-HVDC) channels to the UHVDC sending-end converter station. The renewable energy side of the integration channels is equipped with energy storage devices featuring grid-forming control functions to mitigate power fluctuations and support the grid-connected voltage of renewable energy. The UHVDC system adopts line commutated converter based high voltage direct current (LCC-HVDC) at the sending end and VSC-HVDC at the receiving end. The characteristics of the proposed scheme are analyzed in terms of applicable scenarios
operation features
and economic performance. A coordinated control strategy for multiple power electronic converters is also proposed. The feasibility of the proposed scheme is verified through simulations of steady-state and AC/DC transient conditions based on the PSCAD/EMTDC electromagnetic transient simulation platform.
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24省新能源提出配储要求汇总 [EB/OL].[ 2023-11-09 ]. https://www.escn.com.cn/20231109/f0022c3e61e74556b589e00f7ce2f040/c.html https://www.escn.com.cn/20231109/f0022c3e61e74556b589e00f7ce2f040/c.html .
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