An Adaptive Virtual Impedance Adjustment Based on Average Consistency Algorithm

The independent and stable operation of micro-grid provides technical guarantee for Self-Sustained Highway. At present, there is a contradiction between voltage and power regulation in traditional secondary control. In this paper, a virtual impedance adaptive adjustment based on consistency algorithm is proposed to solve the above problems. Firstly, adjacent DGs communicate to exchange information of real-time power. Calculating compensation from adaptive impedance layer with consistency algorithm. The deviation of primary control is adjusted by dynamic virtual impedance. This method can distribute active power according to capacity, and reduce the voltage deviation at the same time. The effectiveness of the method is validated by the simulation and experimental results.