Fault Calculation System Of Power Network Based J2EE Structure And Distributed

The amount of relay protection setting is increased along with rapid deveJopment of power network and increase of the amount of power network node. So the stand-alone computer, G/S modes have not been satisfied the need of developing power system. It is necessary that let the related computers to work out the fault of power system in time. And then the intranet has been constituted in power system followed technology revolution of net originated from 1990. It provided the necessary facility to realize the Web-based distributed fault computation system.The author put forward the conception of distributed fault computation system from the request of user. The system can not only compute the fault of power network by many clients but it can well integrate relay protection setting system and distributed management information of values.A new viewpoint to observe the relation of bus voltage, bus current injection and branch current of the network considering branch mutual inductance has been provided in this paper. The process of building the Z-Matrix of a large-scale power network is set forth in particular in this paper. And the method is employed in the fault computation system successfully.