针对配电网自身的特点，确定了故障恢复模型所采用的目标函数及其约束条件；在粒子群优化算法的基础上，提出了二进制局部PSO算法，并对该算法易早熟收敛和收敛速度慢的缺点进行了优化。通过算例的验证表明，该改进算法能够正确、有效地解决配电网故障恢复问题。

The objective function and its constraints for the characteristics of a distribution network are proposed in the paper. Based on introducing PSO, an improved Binary Local PSO is used in the research. An optimization approach is employed to overcome the drawbacks of premature convergence and slow convergence speed of the algorithm. The verification of a distribution network shows that the algorithm discussed in the paper can solve the service restoration for a distribution network correctly and effectively.