含多端柔性直流电网的调度计划优化建模

发布时间：2018-06-28 07:06

本文选题：柔性直流输电 + 调度计划　；参考：《电力系统自动化》2017年23期

【摘要】：发展建设多端柔性直流电网为大规模风光等清洁能源并网提供了一种新的技术手段。当直流电网与交流电网紧密耦合时,电网调度运行业务中的传统调度计划应用由于缺少对直流控制单元、交直流互动方式、直流电网潮流约束等问题的考虑,在调度对象、计划模式、平衡策略及交直流双侧网络约束等方面均缺少考虑。针对上述问题,提出了含多端柔性直流电网的调度计划优化建模方法。该模型可灵活处理交直流互动方式,新增了直流电网有功平衡及交直流双侧网络传输限额等约束,为直流电网纳入传统调度计划应用提供了一种建模策略。将所述模型应用于5端直流与新英格兰10机系统相结合的电网,验证了模型在处理交直流互联电网调度计划方面的灵活性及有效性。
[Abstract]:The development and construction of multi-terminal flexible DC network provide a new technical means for large-scale clean energy grid. When the DC network is tightly coupled with the AC power network, the traditional dispatching plan application in the dispatching operation of the power network is due to the lack of consideration of DC control unit, AC / DC interaction mode, DC power flow constraints and so on, in the dispatching object. The planning mode, balance strategy and AC / DC network constraints are not considered. To solve the above problems, an optimal scheduling modeling method for multi-terminal flexible DC networks is proposed. This model can deal with AC / DC interaction flexibly and adds constraints such as balance of active power in DC network and transmission quota on both sides of AC / DC network. It provides a modeling strategy for DC network to be applied in traditional dispatching plan. The model is applied to the five-terminal DC and New England 10-machine power grid, and the flexibility and effectiveness of the model in dealing with the AC / DC interconnected grid dispatching plan are verified.
【作者单位】：中国电力科学研究院;国家电网华中电力调控分中心;国家电力调度控制中心;
【基金】：北京市科委计划项目(Z161100004816025) 国家电网公司科技项目“±500kV柔性直流电网调度技术研究”~~
【分类号】：TM73

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