说明：  使逆变器不仅具有电流下垂控制的优越性能，而且具备虚拟同步发电机的阻尼和惯性特征，增强电网频率和电压幅值的稳定性。
(The inverter not only has the superior performance of the current droop control, but also has the damping and inertia characteristics of the virtual synchronous generator, which enhances the stability of the grid frequency and voltage amplitude.)