DISTRIBUTOR MODEL AND METHOD OF COMPUTING THREE-PHASE UNBALANCED POWER FLOW

摘要

PROBLEM TO BE SOLVED: To formularize each kind of distributor models such as a PV- designated node model, an inverter-type scattered power model, an inductor model, an LDC device model, etc., in respect to a nongrounded distribution system, and to provide a three-phase unbalanced power flow computation method using these models.;SOLUTION: As regards a PV-designated node model where the active power and voltage of a node are given as designated values, a virtual node and a virtual branch consisting of only impedance are connected to the node in question, reactive power flowing into the node in question via the virtual branch is controlled by adjusting the voltage of the virtual node, and the reactive power at the time of having equalized the voltage of the node in question to the designated value is made the designated value of virtual reactive power at the node in question. The designated value of active power and the designated value of virtual reactive power are taken into the quantity of load in computation of power flow, as the quantity of injection of the active power and the reactive power at the node in question.;COPYRIGHT: (C)2003,JPO