The New Method of Dynamic Interval Power Flow Calculation Based on Master-Slave Control Microgrid

2018 5th International Conference on Advanced Composite Materials and Manufacturing Engineering

Yuan, Shuai^1 ; Li, Jun^1 ; Yang, Zhixiong^2 ; Ma, Aikun^1 ; Wang, Yuting^1 ; Hong, Bo^1 ; Yuan, Liyue^1 ; Gu, Peng^1

State Grid Liaoyang Electric Power Supply Company, Liaoyang

111000, China^1

Kunming Institute of Physics, Kunming

650223, China^2

关键词: Active power output;    Interval extension;    Interval power flow;    Master slave control;    Micro-grid systems;    Power flow analysis;    Uncertain parameters;    Upper and lower bounds;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/394/4/042014/pdf
DOI  :  10.1088/1757-899X/394/4/042014

来源: IOP

【 摘 要 】

The interval power flow is a power flow analysis method with uncertain parameters as interval. It only needs to know the upper and lower bounds of the uncertainty. In order to avoid the interval iterative process of the traditional interval flow algorithm, a new method of interval flow calculation is proposed to calculate the dynamic interval flow of the master slave control microgrid. First, the affine Taylor interval expansion function model is established by combining interval numbers and affine numbers. On the basis of the dynamic dynamic interval of the active power output of the intermittent DG device, the affine interval flow model of the master and slave control microgrid is established, and the dynamic interval of the flow solution is obtained by the interval flow method based on the affine Taylor interval extension function. The method realizes the decoupling of the interval operation and the iteration operation, and can reduce the interval operation. Quantity and improvement of convergence. Finally, the correctness and effectiveness of the proposed method is verified by the simulation example of a modified microgrid system.