王启国, 黄玲玲, 刘阳, 应飞祥, 闫金涛, 秦少茜. 考虑海上风电接入与转动惯量约束的电源规划模型[J]. 现代电力, 2023, 40(4): 448-456. DOI: 10.19725/j.cnki.1007-2322.2021.0375
引用本文: 王启国, 黄玲玲, 刘阳, 应飞祥, 闫金涛, 秦少茜. 考虑海上风电接入与转动惯量约束的电源规划模型[J]. 现代电力, 2023, 40(4): 448-456. DOI: 10.19725/j.cnki.1007-2322.2021.0375
WANG Qiguo, HUANG Lingling, LIU Yang, YING Feixiang, YAN Jintao, QIN Shaoxi. A Model for Power Planning Considering Large Offshore Wind Power Integration and Rotational Inertia Constraints[J]. Modern Electric Power, 2023, 40(4): 448-456. DOI: 10.19725/j.cnki.1007-2322.2021.0375
Citation: WANG Qiguo, HUANG Lingling, LIU Yang, YING Feixiang, YAN Jintao, QIN Shaoxi. A Model for Power Planning Considering Large Offshore Wind Power Integration and Rotational Inertia Constraints[J]. Modern Electric Power, 2023, 40(4): 448-456. DOI: 10.19725/j.cnki.1007-2322.2021.0375

考虑海上风电接入与转动惯量约束的电源规划模型

A Model for Power Planning Considering Large Offshore Wind Power Integration and Rotational Inertia Constraints

  • 摘要: 针对我国东南沿海省市电网中外来直流电源与海上风电等不可控电源比例不断提升,对受端电网的电源规划与运行稳定提出重要挑战的问题,提出一种考虑海上风电接入与转动惯量约束的电源规划模型。首先,考虑海上风电历史出力数据的季节特征,运用场景分析法描述海上风电不确定性。其次,以年综合成本最低为目标,构建外层优化规划,内层优化运行的双层电源规划模型,并分析了转动惯量水平与频率响应指标的定量关系,通过在内层模型中施加频率变化率(rate of change of frequency, RoCoF)约束保证规划电源结构的惯性支撑能力。采用遗传算法与Cplex求解器对双层规划模型进行求解。最后,算例仿真结果验证了所提模型的可行性与有效性,并分析归纳了海上风电渗透率与外来直流电源比重大小对电源规划结果的影响。

     

    Abstract: To cope with the significant challenge to the power source planning and operation stability of the receiving-end system in southeast coastal provinces and cities in China due to the constantly increasing proportion of uncontrollable power such as extrinsic DC power and offshore wind power, a power planning model considering grid-connection of offshore wind power and its rotational inertia constraints was proposed. Firstly, considering the seasonal characteristics of historical output data of offshore wind power, the uncertainty of offshore wind power was described by scenario analysis method. Secondly, taking the lowest annual comprehensive cost as objective, a bi-layer power planning model, in which the planning was optimized by the outer-layer and the operation was optimized by the inner-layer, was constructed. Thirdly, the quantitative relation between rotary inertia level and frequency response index was analyzed, by means of applying the constraint of rate of change of frequency (abbr. RoCoF) in the inner-layer model the adequate inertial support capacity of the planned structure of power source was ensured. By use of genetic algorithm and Cplex solver the bi-layer planning model was solved. Finally, the feasibility and the effectiveness of the proposed model are verified by the simulation results of computing example, meanwhile, the impacts of the offshore wind power permeability and proportion of extrinsic DC power on power planning results were analyzed and induced.

     

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