基于改进前推潮流法的配网实用化低电压分析评估  

Distribution Network Practical Low Voltage Analysis and Evaluation Based on Improved Forward Power Flow Method

作　　者：邓才波[1] 何伟[1] 孙旻[1] 熊俊杰[1] 何昊[1] DENG Caibo HE Wei SUN Min XIONG Junjie HE Hao(State Grid Jiangxi Electric Research Institute, Nanchang 330096, Jiangxi Province, Chin)

机构地区：[1]国网江西省电力科学研究院,江西省南昌市330096

出　　处：《智能电网》2016年第12期1175-1178,共4页Smart Grid

摘　　要：在配电网改造与升级过程中,需要对已有的配电网络的负荷能力、电压水平和损耗情况进行量化评估,以便从整体上把握配电网的运行情况,有针对性地提出改造的措施,并进行措施的比较优化,经济有效地改善配电网运行水平。现有的评估方法一般采用MATLAB、ETAP等图形化工具,建模复杂,运行速度慢,对计算机资源的占用量大,结果输出针对性不强,而配电网络网架复杂,数量庞大,需要简单可靠的潮流计算工具实现快速精益的评估。因此,通过对传统配网前推回代潮流计算方法的研究,提出一种改进型的单相前推潮流计算方法,简化建模工作量,精度高,配合评估工具能够有效减少评估工作量,提升配网运行分析、量化评估的效率。In the process of reforming and upgrading of distribution network, in order to grasp the operation condition in general with which to propose targeted improvements and select optimized, economical and efficient actions to improve the operation level, it is quite necessary to quantify the load capacity, voltage level and loss of the existing distribution network. However, traditional graphical simulation tools such as MATLAB and ETAP with complex modeling method, slow calculation speed, large amount occupation of computer resources and weak pertinency of output result can hardly apply to distribution network with complex topology and large quantity branches. A simple and reliable power flow calculation tool is needed to achieve fast and lean evaluation. Based on the research of traditional forward-backward sweep method, this paper proposes an improved forward method with simple modeling work and high precision which can effectively reduce the evaluation work and improve the efficiency of operation analysis and quantitative evaluation.

关 键 词：配电网 潮流计算 前推回代法 

分 类 号：TM744[电气工程—电力系统及自动化]