Parameter identification of static load model based on Lemke optimal algorithm

Lemke optimal algorithm is used to identify parameters of static load model to improve the performance of traditional optimization algorithms.Principles of the least square method,Lagrange method and Lemke method are described.Static faults of electric power load elements are simulated.With fault data,the load modeling and parameter identification are performed based on Lemke optimal algorithm.Static characteristic parameters of the lamp,the fanner,the air conditioner and their combination are listed.The result analysis shows that:adopt measured parameters and never copy those supplied by foreign software because manufacturing techniques are different;fitting results by Lemke optimization algorithm are better,avoiding local optimum and costing less time;Lemke optimization algorithm avoids decentralization of identification parameters and makes identified parameters independent of initial values.