Equipment Model Base Establishment And Graphical User Interface Development For Power System Insulation Coordination Software

The insulation coordination design of the power system has importance on economic and the stability of the system. With the power system voltage levels increasing, it has received increasing attention. But its design process is very complicated, design efficiency is relatively low, and requiring the designer have relatively high professional quality. With the development of computer technology, Computer-aided Design(CAD) means was introduced into the insulation coordination design of the power system. The development of "power system insulation coordination design software" would be a subject with high application value. The thesis mainly introduces the equipment model base establishment and Graphical User Interface(GUI) development for power system insulation coordination software.First of all, The author taking EMTP pre-established method established equipment model base of the power system insulation coordination software. Specially, in order to reduce the difficulty of modeling the HVDC system, The equipment modules of HVDC was established by integrated treatment, including"six-pulse valve and trigger circuit module","AC filter modules"etc six HVDC primary equipment modules and phase-locked loop module ,constant dc current control module.Secondly, detailed defined the data interface format between graphical user interface and core calculation levelNext, designed a graphical user interface for"power system insulation coordination design software"in detail . Based on Object-Oriented Method, using the grid vector established a equipment logo base of graphical user interface. And completed the design and development on model founding routine, network topology recognition routines, waveform display routinestFinally, as a testing of the software, a±500KV DC System Simulation Model was constructed in the software.