分布式电源接入位置对配网电压影响研究  

Research on Influence of Distributed Generation Access Location on Distribution Network Voltage

作　　者：郭红娟 王海云[1,2] 和敬祥 王维庆[1,2] GUO Hong-juan;WANG Hai-yun;HE Jing-xiang;WANG Wei-qing(School of Electrical Engineering,Xinjiang University,UrumqiXinjiang 830049,China;Engineering Research Center of Ministry of Education for Renewable Energy Power Generation and Grid Connection Technology,UrumqiXinjiang 830049,China;State Grid Urumqi Power Supply Company,Urumqi Xinjiang 830049,China)

机构地区：[1]新疆大学电气工程学院,新疆乌鲁木齐830049 [2]可再生能源发电与并网控制技术教育部工程研究中心,新疆乌鲁木齐830049 [3]国网乌鲁木齐供电公司,新疆乌鲁木齐830049

出　　处：《计算机仿真》2021年第8期113-117,共5页Computer Simulation

基　　金：国家自然科学基金资助项目(51667020);新疆自治区万人计划后备入选项目“天山雪松”人才培养计划(2017XS02);新疆自治区重点实验室开放课题(2018D04005)。

摘　　要：配电网在高渗透率、低负载运行状态下,分布式电源(DG)接入系统后对原电网的安全运行产生的影响不容小觑。针对DG接入配电网的不同位置会对系统电压产生不同影响的问题,提出6种不同DG接入配电网方式。首先利用前推回代潮流法求解并网后节点电压值;然后以电压质量最优为目标,支路容量、节点电压、有功及无功功率平衡为约束条件,利用新颖帝国竞争算法(ICA)对模型进行求解;最后在IEEE-33节点中进行仿真验证,所得结果表明方式3与方式6接入为最优接入且验证了ICA算法在寻求高渗透、低负载运行状态下DG接入位置具有正确性和实用性。Under the condition of high permeability and low load operation of distribution network,the impact of DG on the safe operation of the original power grid can not be underestimated.Aiming at the problem that different positions of DG connected to the distribution network will have different effects on the system voltage,six different ways of DG connected to the distribution network were proposed.First,the forward backward power flow method was used to solve the node voltage value after grid connection;Then,the new imperial competition algorithm(ICA)was used to solve the model with the optimal voltage quality as the objective,and the branch capacity,node voltage,active and reactive power balance as constraints;Finally,the simulation verification was carried out in ieee-33 node,and the results show that mode 3 and mode 6 access are the optimal access,and verify the correctness and practicability of ICA algorithm in seeking the location of DG access under high penetration and low load operation are verified.

关 键 词：高渗透率 低负载 分布式电源 帝国竞争算法 电压质量 接入位置 

分 类 号：TP743[自动化与计算机技术—检测技术与自动化装置]