广东电网负荷特性典型日选取研究

摘要

日负荷曲线的预测直接影响电网建设和运行的经济效益,科学合理的选取典型日对电网规划设计具有重要的参考价值.综合考虑气候特性、省内机组出力和西电接受规模,提出典型负荷日代表月份的选取方法;对比分析典型负荷日特征与年最大负荷代表月份的日负荷特性;并根据广东电网负荷变化的实际情况,从电网调峰需求的角度出发,提出将夏季典型日分为典型工作日和双休后典型日;以2010-2015年广东电网统调负荷数据为例进行分析,建议采用双休后典型日作为调峰问题研究的基础数据,确保系统在各种运行方式下安全稳定运行.%The forecast of daily load curve directly affects the power grid construction and the economic benefit of grid operation.Scientific and rational selection of typical day has important reference value for power grid planning and design.The month of load typical day selection method was proposed considering climatic characteristics,provincial generator units output and receiving power capacity from western provinces.The load characteristics of typical day and annual peak load were compared.According to the practical load variation and the demand for peak-load regulation of Guangdong power grid,two typical days in summer was proposed:typical workday and typical day after the weekend.Taken the data from unified management in 2010-2015 as an example,the analysis results show that the load characteristics of typical days after the weekend are suggested as basic data for the research on peak-load regulation,which can ensure the safe and stable operation under different operation modes.