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“Source to Source” Active Coordinated Control Technique Based on Large-Scale Wind Power Connecting to the Grid

Currently, the problem of energy crisis and environmental deterioration on the world is extremely urgent, so people now are trying to turn to many kinds of renewable energy to solve these problems. Of these renewable energies, because of its cleanness and availability, wind power has broadened prospect and in recent years, it is considered to connect wind power to the grid in large quantities to make full use of it. However, wind power possesses the shortcoming such as randomness so that when it is connected to the grid, it may have great impact to the grid and damage the balance of the power system. Based on the fluctuation regularity of load and the characteristics of volatility, intermittent and randomness of wind power, the operation characteristics when large-scale wind power is connected to the grid and active regulation characteristics of conventional power source such as fire power, the multi time-scale “source to source” active coordinated control technique is proposed.