应对大规模功率缺失的区域电网日内发电计划优化调整方法

发布时间：2018-12-24 12:09

【摘要】：基于安全约束经济调度(SCED)的日内发电计划多应用于省级电网,当电网出现诸如特高压直流闭锁等大功率缺失时,基于送受端协商式的联络线计划调整难以快速实现互联省份的有效支援。针对上述问题,文中在传统SCED模型的基础上,提出了基于联络线断面和分省备用控制的日内计划模型。模型可在大区电网内,根据故障时电网的实际运行情况一次性求解机组及互联电网的联络线计划。将所述模型应用于华东电网,分析了宾金直流发生单极和双极闭锁时的计划调整过程。仿真结果表明模型可以在考虑安全约束前提下通过互济参数设置,灵活控制互联省份支援方式,以区域内机组及联络线计划调整发挥互联电网互济能力,实现有功大范围合理再平衡。
[Abstract]:The intraday generation plan based on (SCED) is applied to the provincial power grid. When the power grid is missing, such as UHV DC latchup, etc. It is difficult to realize the effective support of the interconnected provinces quickly by the tie line planning adjustment based on the receiving end negotiation. In order to solve the above problems, based on the traditional SCED model, an intra-day planning model based on tie-line cross-section and provincial backup control is proposed in this paper. The model can be used to solve the tie-line plan of the unit and the interconnected power network in a single time according to the actual operation of the power network in a large area. The model is applied to East China Power Grid, and the planning and adjustment process of binkin DC with unipolar and bipolar latching is analyzed. The simulation results show that the model can flexibly control the support mode of interconnected provinces under the premise of considering the security constraints, and make use of the plan of generating units and tie-lines in the region to bring into play the mutual aid capability of interconnected power networks. To achieve a wide range of rational rebalancing of active power.
【作者单位】：中国电力科学研究院;国家电力调度控制中心;
【基金】：国家电网公司科技项目“应对大规模功率缺失的区域互济日内计划优化调整技术研究”~~
【分类号】：TM73

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