China has formed a cluster of renewable energy bases through the UHV DC group delivery mode, and the renewable energy consumption is constrained by the DC power transmission capacity and the new energy grid-connected power. Firstly, in order to improve the ability to absorb new energy and distinguish it from the traditional rigid cut-off control of the feeder, the necessity of using the rapid control characteristics of new energy (wind power, photovoltaic) inverters to incorporate new energy power control into the emergency control of the grid is analyzed. New energy power control can effectively reduce the impact, improve the fine level of control, and realize the decoupling control ability of active and reactive power. Secondly, for new energy equipment control, communication status and active and reactive power control capabilities, the technical requirements for including new energy in emergency control communication delay and controllable power real-time sensing are studied, the system architecture is designed, the applicable scenarios are studied, and the application scenarios are proposed. The specific implementation methods and corresponding control strategies are presented. Finally, based on the actual power grid, simulations verify the effectiveness of the proposed control architecture and control method, which can effectively improve the DC transmission capacity and the grid-connected power of renewable energy.