報告書番号

182045

タイトル（和文）

直流送電系統における過渡現象のディジタルシミュレーション－ＥＭＴＰによるシミュレーション法の開発とその適用－

タイトル（英文）

DYNAMIC DIGITAL SIMULATION OF HVDC TRANSMISSION SYSTEM BY ELECTROMAGNETIC TRANSIENTS PROGRAM

概要 （図表や脚注は「報告書全文」に掲載しております）

直流送電系統のディジタルシミュレーションによる過渡現象解析を目的として，ＥＭＴＰによる直流送電系統のシミュレーション手法を開発してＮｅｌｓｏｎＲｉｖｅｒＨＶＤＣ系統を対象とした下記の過渡現象について検討し，その動作特性が良好なことを検証した。（１）変換器の起動（２）直流送電線の地絡（３）逆変換器転流失敗（４）全電圧起動（逆変換器側開放）開発した直流送電系統シミュレーション用基本データパッケージは汎用であり，その拡張も可能である。

概要 （英文）

IT IS VERY IMPORTANT TO ANALYZE THE TRANSIENT PHENOMENA SUCH AS THE OVERVOLTAGE AND OVERCURRENTS ON THE INTEGRATED HVDC/AC SYSTEM ACCURATELY TO ENSURE THE SYSTEM OPERATION UNDER FAULT CONDITION AS WELL AS STEADY-STATE CONDITION.THE POSSIBLE KINDS OF EVENTS WHICH MAY CAUSE OVERVOLTAGES AND/OR OVERCURRENTS ON THE HVDC/AC SYSTEMSARE LINE FAULTS,CONVERTER FAULTS,DEBLOCKING/BLOCKING OF CONVERTERS, LOAD REJECTION OF THE INTEGRATED AC SYSTEM,HARMONIC FILTER SWITCHING,SWITCHING OF REACTIVE POWER EQUIPMENT AND SO ON. IN ORDER TO ANALYZE TRANSIENT PHENOMENAON THE INTEGRATED HVDC/AC STSTEMS ACCURATELY,IT IS IMPORTANT TO CONSIDER THE DETAILED CHARACTERISTICS OF BOTH MAIN POWER CIRCUITSAND CONVERTER CONTROL CIRCUITS. THE ELECTROMAGNETIC TRANSIENTS PROGRAM(BPA-EMTP)DOES HAVE THE CAPABILITY TO SIMULATE THE INTEGRATED HVDC/AC SYSTEMS INVOLVING CONTROL SYSTEMS WHICH ARE ESSENTIAL TO HVDC CONVERTERS. SO,THE DIGITAL SIMULATION OF THE NELSON RIVER HVDC SYSTEM IS PERFORMED BY DEVELOPING THE DATA PACKAGE FOR THE EMTP PROGRAM. IN THIS PAPER THE PROCEDURE HOW TO SIMULATE THE HVDC SYSTEM INCLUDING ESTABLISHING INITIAL CONDITION ON EMTP IS DESCRIBED FIRST AND SOME RESULTS OBTAINED THROUGH THIS SIMULATION ARE SHOWN. ONCE THIS KIND OF DATA DECK ARE DEVELOPED,IT BECOMES A VERY POWERFUL TOOL CALLED LIKE THE DIGITAL HVDC SIMULATOR ,AND THE VARIOUS KINDS OF ANALYSIS CAN BE EASILY PERFORMED.

報告者

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