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上海电力大学电气工程学院,上海市 200090
Received:02 September 2021,
Revised:2022-02-21,
Published Online:14 June 2022,
Published:10 October 2022
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黄玲玲,王启国,符杨等.考虑电力系统静态稳定增强的海上多端直流系统规划优化[J].电力系统自动化,2022,46(19):43-51.
HUANG Lingling,WANG Qiguo,FU Yang,et al.Planning and Optimization of Offshore Multi-terminal DC System Considering Enhancement of Power System Static Stability[J].Automation of Electric Power Systems,2022,46(19):43-51.
黄玲玲,王启国,符杨等.考虑电力系统静态稳定增强的海上多端直流系统规划优化[J].电力系统自动化,2022,46(19):43-51. DOI: 10.7500/AEPS20210902001.
HUANG Lingling,WANG Qiguo,FU Yang,et al.Planning and Optimization of Offshore Multi-terminal DC System Considering Enhancement of Power System Static Stability[J].Automation of Electric Power Systems,2022,46(19):43-51. DOI: 10.7500/AEPS20210902001.
随着大规模海上风电的发展,多端直流(MTDC)系统由于其灵活的网络结构与控制能力,在海上风电并网规划中获得了越来越多的关注。围绕海上风电集群经MTDC系统接入陆上电网的规划需求,针对接入陆上电网的公共连接点数量、位置、容量等MTDC网络拓扑优化问题,提出一种MTDC网络拓扑矩阵的定义方法,可直观用于MTDC系统不同网络拓扑结构下的小信号模型构建与投资成本计算,并构建了一种兼顾MTDC系统投资经济性与MTDC系统接入对陆上交流电网稳定性影响的综合优化模型。算例分析结果表明,所提模型与方法能够有效进行MTDC系统的多网络拓扑方案优化选择,在保证系统经济性的同时,也有助于提升规划方案的静态稳定水平。
With the development of large-scale offshore wind power
multi-terminal DC (MTDC) system has gained more and more attention in the grid connection planning of offshore wind power due to its flexible network structure and control capability. Focusing on the planning requirements for offshore wind power clusters to be connected to the onshore power grid through the MTDC system
for the MTDC network topology optimization problems including the number of the point of common coupling (PCC) connected to the onshore power grid
the location and the capacity etc.
a definition method of MTDC network topology matrix is proposed. This method can be intuitively used for the construction of small-signal models and the calculation of investment costs with different network topologies of the MTDC system
and a comprehensive optimization method is constructed that takes into account the investment economy of MTDC systems and the effect of MTDC system access on the stability of onshore AC power grids. The results of the example analysis show that the proposed model and method can effectively optimize the selection of the multi-network topology scheme of the MTDC system
which not only ensures the economy of the system
but also helps to improve the static stability of the planning scheme.
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