ED problem is approximated by a differentiable one using a maximum entropy method.BFGS operator is presented to improve the searching speed and the local searching capability of genetic algorithm.

• 利用极大熵理论将经济负荷分配问题转化为可微问题，将BFGS法引入遗传算法，提出了BFGS算子，以提高遗传算法的寻优速度与局部搜索能力。