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1.新疆大学电气工程学院,新疆维吾尔自治区乌鲁木齐市 830000
2.中国科学院电工研究所,北京市 100190
孙瑶(1996—),女,博士研究生,主要研究方向:新能源并网技术、电力系统继电保护。E-mail:sy_sci@163.com
樊艳芳(1971—),女,通信作者,教授,博士生导师,主要研究方向:新能源并网技术、电力系统继电保护。E-mail:fyf3985@xju.edu.cn
卢俊龙(1987—),男,博士,主要研究方向:光伏并网变换器。E-mail:lujunlong@mail.iee.ac.cn
收稿:2022-04-17,
修回:2022-08-09,
网络出版:2022-11-23,
纸质出版:2023-02-10
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孙瑶,樊艳芳,卢俊龙等.陆上风电直流汇集系统拓扑结构优化设计方法[J].电力系统自动化,2023,47(3):142-152.
SUN Yao,FAN Yanfang,LU Junlong,et al.Optimal Design Method for Topology of Onshore Wind Power DC Collection System[J].Automation of Electric Power Systems,2023,47(3):142-152.
孙瑶,樊艳芳,卢俊龙等.陆上风电直流汇集系统拓扑结构优化设计方法[J].电力系统自动化,2023,47(3):142-152. DOI: 10.7500/AEPS20220417007.
SUN Yao,FAN Yanfang,LU Junlong,et al.Optimal Design Method for Topology of Onshore Wind Power DC Collection System[J].Automation of Electric Power Systems,2023,47(3):142-152. DOI: 10.7500/AEPS20220417007.
陆上风电全直流发电系统可有效解决大规模风电交流汇集、传输产生的谐波谐振等问题,而经济、可靠的风电直流汇集系统拓扑结构是其良好发展的基础。文中首先给出基于风机分组串并联的风电直流汇集系统拓扑结构;其次,对该拓扑结构中的不同风机分组方案进行可靠性及经济性评估;然后,综合考虑系统经济性与可靠性问题带来的缺电损失成本,以总成本最低为目标,提出风电直流汇集系统拓扑结构优化模型;最后,以中国西北某50 MW风电场为例,对所提风电直流汇集系统拓扑结构优化模型进行仿真验证。结果表明,所提风电直流汇集系统拓扑结构优化方案可以统筹考虑系统经济性和可靠性,获得最优风机分组方案,将优选后的拓扑结构与典型风电交流汇集系统结构对比,验证了所提拓扑结构优化方案的可行性及优势。
The onshore wind power full DC power generation system can effectively solve the problems of large-scale wind power AC collection and harmonic resonance caused by transmission
and the economical and reliable wind power DC collection system topology is the basis for its sound development. In this paper
the topology of the wind power DC collection system based on wind turbine grouping in series and parallel is given first. Secondly
the reliability and economy of different grouping schemes of wind turbines in the topology are evaluated. Then
considering the cost of power shortage loss caused by the the system economy and reliability problems
the optimization model for the topology of the wind power DC collection system is established with the objective of the lowest total cost. Finally
taking a 50 MW wind farm in northwest China as an example
the proposed optimization model of wind power DC system topology is verified by simulation. The results show that the proposed optimization model for the topology of the wind power DC collection system can consider the system economy and reliability as a whole
and obtain the optimal grouping scheme of wind turbines. The optimized topology is compared with the structure of the typical wind power AC collection system to verify the feasibility and advantages of the proposed optimal method for the topology.
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