Automatic Setting Method for Complex Power Grid Relay Protection Based on Improved Ant Colony Algorithm
Aiming at the problem of large action delay after using traditional methods for setting,a complex power grid relay protection automatic setting method based on improved ant colony algorithm is proposed.The complex power grid relay protection setting problem is transformed into a nonlinear integer programming problem,and an automatic setting model is constructed with the goal of minimizing the action time of inverse time overcurrent protection.The ant colony algorithm is improved with adaptive thinking to form an adaptive maximum minimum ant colony algorithm,and the model is solved to obtain the optimal setting scheme.The results show that after applying the design method,the setting action time of the relay protection is 0.464 s,and the power grid can quickly restore normal operation.
improved ant colony algorithmcomplex power gridrelay protectionautomatic setting
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