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1.广东电网有限责任公司珠海供电局,广东省珠海市 519000
2.西安交通大学电气工程学院,陕西省西安市 710049
Received:08 April 2024,
Revised:2024-09-11,
Published Online:15 October 2024,
Published:10 September 2025
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蔡仲启,魏成骁,王秀丽等.计及系统谐振稳定性和运行可靠性的海上风电分频送出规划[J].电力系统自动化,2025,49(17):34-43.
CAI Zhongqi,WEI Chengxiao,WANG Xiuli,et al.Fractional Frequency Transmission Planning for Offshore Wind Power Considering Resonance Stability and Operation Reliability of System[J].Automation of Electric Power Systems,2025,49(17):34-43.
蔡仲启,魏成骁,王秀丽等.计及系统谐振稳定性和运行可靠性的海上风电分频送出规划[J].电力系统自动化,2025,49(17):34-43. DOI: 10.7500/AEPS20240408004.
CAI Zhongqi,WEI Chengxiao,WANG Xiuli,et al.Fractional Frequency Transmission Planning for Offshore Wind Power Considering Resonance Stability and Operation Reliability of System[J].Automation of Electric Power Systems,2025,49(17):34-43. DOI: 10.7500/AEPS20240408004.
分频输电通过降低频率以提高线路输送能力,为大规模、远距离海上风电送出提供了新的选择。针对高比例可再生能源、高比例电力电子化设备对系统谐振稳定性、可靠性的影响和贴近实际工程需求,提出一种海上风电分频送出规划方法。该方法综合考虑经济性、谐振稳定性、可靠性来规划海上风电分频并网方案。首先,介绍海上风电分频送出系统及陆上工频电网规划模型、谐振稳定性评估模型和运行可靠性评估模型。其次,以中国沿海某地区海上风电开发为案例,规划风电送出及陆上电网扩建方案,开展工程校验。进一步,对比工频交流、柔性直流、分频输电3种方式的技术经济性并进行方案优选。结果表明,案例场景下,分频输电的技术经济性具有一定优势。
Fractional frequency transmission provides a new option for large-scale
long-distance offshore wind power transmission by reducing the frequency and improving the line transmission capacity. Aiming at the impact of the high proportional renewable energy and power electronics equipment on the resonance stability and reliability of the system
and closing to the actual engineering needs
a fractional frequency transmission planning method for offshore wind power is proposed. Considering the economy
resonance stability
and reliability
the method makes fractional frequency grid connection scheme for offshore wind power. Firstly
the fractional frequency transmission system of offshore wind power and planning model of onshore industrial frequency power grid
resonance stability evaluation model
and operation reliability evaluation model are introduced. Secondly
taking the offshore wind power development in a coastal area of China as a case study
wind power transmission and onshore power grid expansion schemes are planed
and the engineering verification is carried out. Furthermore
the technical economy of three schemes of power frequency AC
flexible DC
and fractional frequency transmission are compared
and the optimal solution is selected. The results show that in the case scenario
the technical economy of fractional frequency transmission has certain advantages.
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