The invention discloses a
microgrid one-button smooth switching control method from
grid connection to an off-grid mode. The method comprises the steps that when a
microgrid stable coordination control device is powered, an expert
database based on
XML in an internal storage is automatically loaded, self-recognition of a
microgrid operation mode is carried out to complete preprocessing of a control strategy, after an operator starts a one-button control button, a preprocessed strategy control procedure is started, the whole control procedure automatically achieves
error prevention control over a
physical layer and a
control layer, and after a power threshold condition is detected to be met, a
grid connection point switch is controlled to be
cut off, and smooth switching from
grid connection to the off-grid mode is achieved. The method effectively solves the problems that currently, the control procedure from grid connection to the off-grid mode of a microgrid is complex, the requirement for the quality of operators is high, and the complex operation procedure increases the misoperation risk. Intensification, convenience and
automation of the microgrid are achieved, operation and maintenance cost are lowered, and operation reliability is improved through misoperation prevention.