分布式电源接入对黑龙江配电网影响的综合评估研究

Research on integrated evaluation of impact of connected distributed generation on Heilongjiang distribution Network

对分布式发电(DG)接入黑龙江配电网后所产生的各项影响进行了分析和研究。在综合考虑DG对配电网可靠性、电压质量、经济性等影响的基础上,建立DG接入后对配电网产生影响的评估指标体系以及基于层次分析法的综合评估模型,并计算了各指标的权重,达到了综合评估分布式电源对于配电网影响的目的。同时,以20节点系统为例,在DG的不同接入方案下,仿真分析了指标计算方法和综合评估方法,结果显示该方法可以全面反映出分布式电源对于电网的影响。

This paper studied and analyzed the influence of distributed generation（ DG） on the Heilongjiang distribution network. After taking all the impact of DG on distribution network into consideration such as reliability,voltage quality and economy,this paper built both the evaluation system of the impact of DG and the comprehensive evaluation model based on analytic hierarchy process（ AHP）,calculated the index weight so as to overall evaluate the impact of DG on distribution network. Meanwhile,on the basis of the 20- node system,the simulation of the computation method and the integrated evaluation method were tested. The testing result shows that the method is able to reflect the impact of DG on distribution network.