引用本文:陆文安,余一平,吴迪,刘辉,彭伟,鞠平.基于动态能量贡献度的机组调频能力评估方法[J].电力自动化设备,2024,44(6):192-201.
LU Wenan,YU Yiping,WU Di,LIU Hui,PENG Wei,JU Ping.Evaluation method of unit frequency regulation ability based on dynamic energy contribution degree[J].Electric Power Automation Equipment,2024,44(6):192-201.
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基于动态能量贡献度的机组调频能力评估方法
陆文安1, 余一平1, 吴迪2, 刘辉2, 彭伟2, 鞠平1
1.河海大学 能源与电气学院,江苏 南京 211100;2.国网安徽省电力有限公司,安徽 合肥 230022
摘要:
针对不同类型的同步机组缺乏统一、有效的调频能力评估方法的问题,从一次调频过程中的动态能量角度出发,在调频动态过程的不同阶段,构建机组一次调频能力评估指标,从能量贡献速度、深度、强度多维度评估机组一次调频的速动性、可靠性和重要性。基于改进的10机39节点系统,通过不同调频能力场景下各指标的计算情况以及和传统评估指标的对比,验证了该方法的合理性和有效性。在此基础上,量化研究了影响机组调频能力的关键因素,从能量的角度解释了各参数对调频动态指标的影响。该方法对于发现电网中存在的调频瓶颈以及提升电网的调频能力具有一定的参考价值。
关键词:  动态能量  同步机组  能量贡献度  一次调频  调频能力评估
DOI:10.16081/j.epae.202312011
分类号:
基金项目:国家自然科学基金资助项目(52077058);国网安徽省电力有限公司科技项目(B31200220005)
Evaluation method of unit frequency regulation ability based on dynamic energy contribution degree
LU Wenan1, YU Yiping1, WU Di2, LIU Hui2, PENG Wei2, JU Ping1
1.College of Energy and Electrical Engineering, Hohai University, Nanjing 211100, China;2.State Grid Anhui Electric Power Co.,Ltd.,Hefei 230022, China
Abstract:
Aiming at the lack of unified and effective frequency regulation capability evaluation methods for different types of synchronous generator units, the evaluation index of the unit primary frequency regulation capability is constructed from the perspective of dynamic energy during the primary frequency regulation process at different stages of the frequency regulation dynamic process, and the velocity, reliability, and importance of the unit primary frequency regulation are evaluated from multiple dimensions such as energy contribution speed, depth, and intensity. Based on the improved 10-machine 39-bus system, the reasonableness and effectiveness of this method are verified through the calculation of each index under different frequency regulation capability scenarios and the comparison with traditional evaluation indicators. On this basis, the key factors affecting the unit frequency regulation capability are quantitatively studied, and the impact of various parameters on frequency regulation dynamic indicators is explained from the perspective of energy. This method has certain reference value for discovering frequency regulation bottleneck in the power grid and improving the frequency regulation capability of the power grid.
Key words:  dynamic energy  synchronous unit  energy contribution degree  primary frequency regulation  frequency regulation capability evaluation

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