EMC Prediction Method of High Voltage Multi-Circuit Transmission on the Same Tower Based on Improved Least Squares Method

Multi-circuit transmission on the same tower has problems of inaccurary in analysis and prediction of nonlinear electromagnetic interference. Based on the existed numerical methods, the expected pattern of interference sources scattering can't be solved exactly. The main purpose of this paper is to develop a numerical optimization algorithm that takes account of mutual coupling among inner elements and interactions with outside scatterers. To achieve this, the improved least squares method(LSM) combined with moments-based scheme is proposed. The correctness and validity of the proposed algorithm are proved by experimental results based on dSPACE.