摘要
电网谐波问题将会给电力系统稳定带来极大的危害,因此文章结合配电网的运行状况与实际情况,在现有谐波源定位方法和谐波状态估计法的基础上,提出了谐波电压状态估计的谐波源定位法。通过状态估计,得到配电网全部节点的电压状态,然后依据节点谐波注入的量测方程,估计出节点的谐波注入电流,从而确定谐波源的所在的地方。并在IEEE-13测试系统上完成MATLB仿真,通过仿真与分析,最终验证该方法的有效性。
The power grid harmonic problem will bring great harm to the stability of power system.Combined with the operation status and actual situation of the distribution network,the harmonic source location method for harmonic voltage state estimation is proposed based on the existing harmonic source location method and the harmonic state estimation method.Through the state estimation,the voltage state of all nodes of the distribution network is obtained,and then the harmonic injection current of the node is estimated according to the measurement equation of the node harmonic injection,thereby determining where the harmonic source is located.The MATLB simulation is completed on the IEEE-13 test system.Through simulation and analysis,the effectiveness of the method is verified.
作者
马克峰
MA Kefeng(Marketing Department of Lianyungang Power Supply Company,Lianyungang 222000,China)
出处
《电工技术》
2019年第14期74-75,77,共3页
Electric Engineering
关键词
电网谐波源
定位
仿真
power grid harmonic source
location
simulation
