The intermittence of power output of renewable energy sources has brought about extremely great challenges to the optimal dispatch and operation of distribution networks.The active distribution network（ADN）is an effective approach to realizing the integration of new energy resources into the distribution network in the near future.This paper focuses on the multi-time scale coordinated control framework of ADN in the normal state，including the global optimal control in a long-time scale and the regional autonomous control in a short-time scale.On the basis of the above control framework，the global optimal algorithm for ADN based on the optimal power flow（OPF）and the regional autonomous control strategy based on the power control error are proposed，respectively.The simulation results demonstrate the robustness and optimal characteristics of the proposed multi-time scale coordinated control technology，and its effectiveness for ADN real-time dispatch is also verified.