Patent ID: 11923685
Assignee: STATE GRID JIBEI ELECTRIC POWER COMPANY LIMITED
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  G  Y | IPC G  H

Claim 8:
9. The apparatus according to claim 8, wherein the plurality of transmission-distribution network boundary constraints comprise an active power matching constraint, a reactive power matching constraint, and a voltage magnitude matching constraint;
wherein the active power matching constraint is represented as:

PT→Dk,iG=PDk←T,iG,∀k∈ID,∀i∈DkPCC 

where DkPCC represents a set of indexes of boundary buses between the kth distribution network and the transmission network, PT→Dk,iG represents an active power transmitted from the transmission network to the kth distribution network via an ith boundary bus, PDk←T,iG represents an active power absorbed by the kth distribution network from the transmission network via the ith boundary bus;
wherein the reactive power matching constraint is represented as:

QT→Dk,iG=QDk←T,iG,∀k∈ID,∀i∈DkPCC 

where QT→Dk,iG represents a reactive power transmitted from the transmission network to the kth distribution network via the ith boundary bus, QDk←T,iG represents a reactive power absorbed by the kth distribution network from the transmission network via the ith boundary bus;
wherein the voltage magnitude matching constraint is represented as:

(VT,Dk,i)2=vDk,T,i,∀k∈ID,∀i∈DkPCC 

where VT,Dk,i represents a voltage magnitude of the ith boundary bus, vDk,T,i represents a square of the voltage magnitude of the ith boundary bus.