摘要
新能源的大规模接入使得精细考虑网损对电力系统调度更为重要。介绍了一种改进直流潮流计算方法,比较了其与传统直流潮流计算的优劣性,并提出了基于改进直流潮流的内嵌网损经济调度模型,在保留直流潮流收敛优势的同时,其精确度得到了很大提升。最终对IEEE30、IEEE118等节点系统进行测试,验证了该经济调度模型的精确性和收敛性。
It＇s important to explicitly consider transmission losses under the circumstances of large-scale new renewable energy integrated into the power gird. A modified DC power flow method, which is more precise compared with the traditional DC power flow, is proposed. Based on the proposed DC power flow, a new economic dispatch method considering transmission losses is proposed. The proposed method improves power re-dispatch accuracy, as well as keeps the advantage of the convergence of DC power flow. Simulations results on IEEE 30- and 118-bus test systems show that the proposed method is effective.
出处
《江苏电机工程》
2015年第1期1-5,共5页
Jiangsu Electrical Engineering
关键词
改进直流潮流
网损
调度
DC power flow
transmission losses
economic dispatch
