A progressive optimization dispatching method of smart distribution system

A progressive dispatching method for a smart power distribution system, comprising the steps of:

• 1) connecting a plurality of distributed powers, interruptible loads and energy storage devices to a distribution network through switches, in which each switch opens and closes to allow access to the power distribution system;
• 2) calculating loss rates of the smart power distribution system under various operating modes using working day load curves and holiday load curves respectively, selecting first operation modes having the least power loss rate for each working day and holiday period, according to the sequence that working day and holiday alternate in time, comparing the difference between adjacent working day and holiday first group of operation modes, and determining a mid to long term switch operating scheme;
• 3) dividing a next day load curve into several different periods according to the load change trend with respect to time and maintenance information,
• calculating loss rates of the smart power distribution system under various operating modes for each period,
• selecting second group of operation modes having the least power loss rate for each period, comparing the difference between the second operation modes according to time sequence, and determining a short term switch operation scheme;
• 4) adjusting the power level of the distributed power and energy storage device in the event of emergencies, or transferring the load to other feeders.