计及随机变量相关性的多点线性化概率潮流计算OACSTPCD

To accommodate the power flow analysis and calculation requirements for power systems with high uncertain-ties in source and load on both sides with high shares of renewable energy and power electronics,a novel probabilistic power flow calculation method is proposed in this paper.A probability distribution model of random input variables is es-tablished based on kernel density estimation,and the Copula function is constructed to describe the correlation between multi-dimensional random input variables and obtain the sample data,which is more in line with the actual situation of system operation.The multi-spot linearized power flow calculation method is introduced to reduce the amount of nonlin-ear power flow calculations while decreasing truncation errors in single-spot linearized power flow calculation.Finally,the test result of an IEEE 30-bus system verifies the accuracy and effectiveness of the proposed method.