多电压等级交流电网容载比计算方法  

Calculation Method for Capacity Load Ratio of AC Grid at Multiple Voltage Levels

作　　者：任鹏 牛为华[2] 李鹏 张洋瑞 REN Peng;NIU Weihua;LI Peng;ZHANG Yangrui(Electric Power Research Institute,State Grid Hebei Electric Power Co.,Ltd,Shijiazhuang 050021,China;Department of Computer,North China Electric Power University,Baoding 071003,China;State Grid Hebei Electric Power Co.,Ltd,Shijiazhuang 050021,China)

机构地区：[1]国网河北省电力有限公司电力科学研究院,石家庄050021 [2]华北电力大学计算机系,保定071003 [3]国网河北省电力有限公司,石家庄050021

出　　处：《电源学报》2024年第6期170-178,共9页Journal of Power Supply

基　　金：中央高校基本科研业务费专项资金资助项目(9160717003)。

摘　　要：现有的容载比计算方法未考虑不同电压等级对交流电网的影响,导致交流电网可靠性与经济性无法同时达到最优,因此在考虑电压等级的基础上,提出多电压等级交流电网容载比计算方法。分别计算高压与低压模式下交流电网的供电能力,根据供电能力利用离散粒子群优化算法计算不同电压等级的容载比粒子数,得到多电压等级交流电网的最优容载比计算结果,从而实现多电压等级交流电网容量配置优化。实验结果表明,该方法能够使变压器容载比达到最优,优化后的交流电网供电可靠性、经济性及满意度均较高。Since the existing capacity load ratio calculation methods do not take into account the impact of different voltage levels on AC grid,they cannot ensure the optimization of the reliability and economy of AC grid at the same time.To solve this problem,a capacity load ratio calculation method for AC grid at multiple voltage levels is proposed on the basis of considering voltage levels.The power supply capacities of AC grid in high-and low-voltage modes are calculated,respectively.According to the power supply capacity,the discrete particle swarm optimization algorithm is used to calculate the particle number of capacity load ratio at different voltage levels,and the optimal capacity load ratio calculation results of AC grid at multiple voltage levels are obtained,so as to realize the capacity configuration optimization of AC grid at multiple voltage levels.Experimental results show that the proposed method can optimize the transformer’s capacity load ratio,and the power supply reliability,economy and satisfaction score of AC grid are higher.

关 键 词：多电压等级 交流电网 容载比 离散粒子群优化算法 

分 类 号：TM744[电气工程—电力系统及自动化]